# TVS Varistor, MOV, 275 V, 350 V, TMOV, 710 V, Disc 20mm, Metal Oxide Varistor (MOV)
**URL**: https://novapart.co/products/TMOV20RP275E/tvs-varistor-mov-275-v-350-tmov-710-disc-20mm
**SKU**: TMOV20RP275E
**Manufacturer**: LITTELFUSE
**Category**: Circuit Protection || TVS - Transient Voltage Suppressors || TVS Varistors
**Price**: €0.8790
**Stock**: 1000+
**Lead Time**: 131 days (indicative)
## Description
Voltage Rating VAC:275V; Voltage Rating V DC:387V; Product Range:TMOV Series; Clamping Voltage Vc Max:710V; Varistor Case Style:Disc 20mm; Varistor Type:Metal Oxide Varistor (MOV); Peak Surg
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (17-Dec-2014) |
| Product Range | TMOV |
| Varistor Type | Metal Oxide Varistor (MOV) |
| Voltage Rating Vac | 275V |
| Voltage Rating Vdc | 350V |
| Varistor Case Style | Disc 20mm |
| Clamping Voltage Vc Max | 710V |
| Peak Energy (10/1000Us) | 190J |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -55°C |
| Peak Surge Current @ 8/20Μs | 10kA |
| Automotive Qualification Standard | - |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:1817008/)
**Metal-Oxide Varistors** (MOVs) Radial Lead Varistors > TMOV[®] and iTMOV[®] Varistor Series
## TMOV® and iTMOV® Varistor Seri ~~es~~
## ~~**RoHS** [~~
## ~~**Description**~~
The Littelfuse TMOV[®] and iTMOV[®] thermally protected varistors represent a new development in integrated circuit protection. Both versions are comprised of radial leaded Metal Oxide Varistors (MOVs) with an integrated thermally activated element designed to open in the event of overheating due to the abnormal overvoltage, limited current, conditions outlined in UL1449. The TMOV[®] and iTMOV[®] varistor’s integrated thermal element, in conjunction with appropriate enclosure design, helps facilitate SPD module compliance to UL1449 for both cord connected and permanently connected applications.
The TMOV[®] and iTMOV[®] varistors offer quick thermal response due to the close proximity of the integrated thermal element to the MOV body. The integrated configuration also offers lower inductance than most discrete solutions resulting in improved clamping performance to fast overvoltage transients.
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thermal element to the MOV body. The integrated
Agency Approvals
[oo configuration also offers lower inductance than most
discrete solutions resulting in improved clamping
Po Agency Agency Approval Agency File Number performance to fast overvoltage transients.
cTAlus UL1449 E320116 The iTMOV [[®]] varistor differs from the TMOV [[®]] varistor by the
inclusion of a third lead for the purpose of indicating that
QC 42201-C001,
QC 42201-A001, IECQ-C BSI 15.0009 the MOV has been disconnected from the circuit. This lead
IEC 60950-1 (Annex Q) facilitates connection to monitoring circuitry.
IEC 61051-1, Additionally TMOV [[®]] and iTMOV [[® ]] varistors are wave
AS IEC 61051-2, 40021525 solderable, thus simplifying end product assembly by
IEC 60950-1 (Annex Q) reducing the the expense and rework associated with hand
soldering operations.
Additional Information Features
Eee
• RoHS compliant and • -55°C to +85°C
Lead–free available operating temp range
fe • Designed to facilitate • Three-lead version
Datasheet Resources Samples compliance to UL1449 available for indication
iTMOV iTMOV iTMOV for SPD products purposes
• High peak surge current
rating up to 10kA
a • Wave solderable
Datasheet Resources Samples • Standard lead form
TMOV TMOV TMOV
**----- End of picture text -----**
The iTMOV[[®]] varistor differs from the TMOV[[®]] varistor by the inclusion of a third lead for the purpose of indicating that the MOV has been disconnected from the circuit. This lead facilitates connection to monitoring circuitry.
Additionally TMOV[[®]] and iTMOV[[® ]] varistors are wave solderable, thus simplifying end product assembly by reducing the the expense and rework associated with hand soldering operations.
• Standard lead form and spacing option
## ~~**Applications** [Po~~
• SPD Products • GFCI (Ground Fault Current Interupter)
- AC Panel Protection Modules
- UPS (Uninterruptable Power Supply)
- AC Line Power Supplies
- White Goods
- Surge Protected Strip Connectors
- Plug-in SPD
- Inverters
- AC Power Meters
- Relocatable AC • AC/DC Power Supplies Power Taps
© 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/13/16
**Metal-Oxide Varistors** (MOVs) Radial Lead Varistors > TMOV[®] and iTMOV[®] Varistor Series
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## ~~**Absolute Maximum Ratings**~~
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• For ratings of individual members of a series, see Device Ratings and Specifications chart
Continuous TMOV [®] and iTMOV [®] Varistor Series Units
Steady State Applied Voltage:
AC Voltage Range (V M(AC)RMS ) 115 to 750 V
Transient:
Peak Pulse Current (I TM ) - For 8x20 µ s Current Wave, single pulse 6,000 to 10,000 A
Single-Pulse Energy Capability - For 2ms Current Wave 35 to 480 J
Operating Ambient Temperature Range (T A ) -55 to +85 °C
Storage Temperature Range (T STG ) -55 to +125 °C
Temperature Coefficient ( α V) of Clamping Voltage (V C ) at Specified Test Current <0.01 %/°C
Hi-Pot Encapsulation (COATING Isolation Voltage Capability) 2,500 V
Thermal Protection Isolation Voltage Capability (when operated) 600 V
COATING Insulation Resistance 1,000 MΩ
Indicator Lead Rating (Lead-3 - iTMOV [®] varistor only):
Continuous RMS current 100 mA
Surge Current, 8/20 µ s 10,000 A
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_CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied._
## ~~**Ratings & Specifcations**~~
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Maximum Rating (85°C) Specifications (25°C)
TMOV [®] Varistor iTMOV [®] Varistor Continuous Transient Varistor Maximum Typical
Lead–free And RoHS Lead–free and RoHS Voltage at Clamping Capaci-
Compliant Models Compliant Models Disc AC DC Energy Peak Surge 1mA Test Voltage tance
Diameter Volts Volts 2ms Current 8/20 µ s Current 8/20 µ s f = 1MHz
Part Branding Part Branding VM(AC)RMS VM(DC) WTM IPulseTM 1 × IPulseTM 2 × VMinN(DC) VMaxN(DC) VC IPK C
Number Number
(mm) (V) (V) (J) (A) (A) (V) (V) (A) (pF)
TMOV14RP115E P4T115E TMOV14RP115M P4T115M 14 115 150 35 6000 4500 162 198 300 50 1100
TMOV20RP115E P2T115E TMOV20RP115M P2T115M 20 115 150 52 10000 6500 162 198 300 100 2400
TMOV14RP130E P4T130E TMOV14RP130M P4T130M 14 130 170 50 6000 4500 184.5 225.5 340 50 1000
TMOV20RP130E P2T130E TMOV20RP130M P2T130M 20 130 170 100 10000 6500 184.5 225.5 340 100 1900
TMOV14RP140E P4T140E TMOV14RP140M P4T140M 14 140 180 55 6000 4500 198 242 360 50 900
TMOV20RP140E P2T140E TMOV20RP140M P2T140M 20 140 180 110 10000 6500 198 242 360 100 1750
TMOV14RP150E P4T150E TMOV14RP150M P4T150M 14 150 200 60 6000 4500 216 264 395 50 800
TMOV20RP150E P2T150E TMOV20RP150M P2T150M 20 150 200 120 10000 6500 216 264 395 100 1600
TMOV14RP175E P4T175E TMOV14RP175M P4T175M 14 175 225 70 6000 4500 243 297 455 50 700
TMOV20RP175E P2T175E TMOV20RP175M P2T175M 20 175 225 135 10000 6500 243 297 455 100 1400
TMOV14RP200E P4T200E TMOV14RP200M P4T200M 14 200 260 75 6000 4500 283 345 530 50 630
TMOV20RP200E P2T200E TMOV20RP200M P2T200M 20 200 260 154 10000 6500 283 345 530 100 1250
TMOV14RP230E P4T230E TMOV14RP230M P4T230M 14 230 300 80 6000 4500 324 396 595 50 550
TMOV20RP230E P2T230E TMOV20RP230M P2T230M 20 230 300 160 10000 6500 324 396 595 100 1100
TMOV14RP250E P4T250E TMOV14RP250M P4T250M 14 250 320 100 6000 4500 351 429 650 50 500
TMOV20RP250E P2T250E TMOV20RP250M P2T250M 20 250 320 170 10000 6500 351 429 650 100 1000
TMOV14RP275E P4T275E TMOV14RP275M P4T275M 14 275 350 110 6000 4500 387 473 710 50 450
TMOV20RP275E P2T275E TMOV20RP275M P2T275M 20 275 350 190 10000 6500 387 473 710 100 900
TMOV14RP300E P4T300E TMOV14RP300M P4T300M 14 300 385 125 6000 4500 423 517 775 50 400
TMOV20RP300E P2T300E TMOV20RP300M P2T300M 20 300 385 250 10000 6500 423 517 775 100 800
TMOV14RP320E P4T320E TMOV14RP320M P4T320M 14 320 420 136 6000 4500 459 561 840 50 380
TMOV20RP320E P2T320E TMOV20RP320M P2T320M 20 320 420 270 10000 6500 459 561 840 100 750
TMOV14RP385E P4T385E TMOV14RP385M P4T385M 14 385 505 150 6000 4500 558 682 1025 50 360
TMOV20RP385E P2T385E TMOV20RP385M P2T385M 20 385 505 300 10000 6500 558 682 1025 100 700
TMOV14RP420E P4T420E TMOV14RP420M P4T420M 14 420 560 160 6000 4500 612 748 1120 50 300
TMOV20RP420E P2T420E TMOV20RP420M P2T420M 20 420 560 320 10000 6500 612 748 1120 100 600
TMOV14RP460E P4T460E TMOV14RP460M P4T460M 14 460 610 180 6000 4500 675 825 1240 50 220
TMOV20RP460E P2T460E TMOV20RP460M P2T460M 20 460 610 360 10000 6500 675 825 1240 100 200
TMOV14RP510E P4T510E TMOV14RP510M P4T510M 14 510 670 185 6000 4500 738 902 1355 50 200
TMOV20RP510E P2T510E TMOV20RP510M P2T510M 20 510 670 325 10000 6500 738 902 1355 100 350
TMOV14RP550E P4T550E TMOV14RP550M P4T550M 14 550 715 190 6000 4500 819 1001 1500 50 180
TMOV20RP550E P2T550E TMOV20RP550M P2T550M 20 550 715 360 10000 6500 819 1001 1500 100 300
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© 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/13/16
**Metal-Oxide Varistors** (MOVs) Radial Lead Varistors > TMOV[®] and iTMOV[®] Varistor Series
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Ratings & Specifcations
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Maximum Rating (85°C) Specifications (25°C)
TMOV [®] Varistor iTMOV [®] Varistor Continuous Transient Typical
Lead–free And RoHS Lead–free and RoHS Varistor Voltage Maximum Capaci-
Compliant Models Compliant Models Disc AC DC Energy Peak Surge at 1mA Test Clamping tance
Diameter Volts Volts 2ms Current 8/20 µ s Current Voltage 8/20 µ s f = 1MHz
Part Branding Part Branding VM(AC)RMS VM(DC) WTM IPulseTM 1 × IPulseTM 2 × VMinN(DC) VN(DC) Max VC IPK C
Number Number
(mm) (V) (V) (J) (A) (A) (V) (V) (A) (pF)
TMOV14RP575E P4T575E TMOV14RP575M P4T575M 14 575 730 195 6000 4500 857 1047 1568 50 170
TMOV20RP575E P2T575E TMOV20RP575M P2T575M 20 575 730 375 10000 6500 857 1047 1568 100 275
TMOV14RP625E P4T625E TMOV14RP625M P4T625M 14 625 825 200 6000 4500 900 1100 1650 50 160
TMOV20RP625E P2T625E TMOV20RP625M P2T625M 20 625 825 400 10000 6500 900 1100 1650 100 250
TMOV14RP750E P4T750E TMOV14RP750M P4T750M 14 750 970 210 6000 4500 1080 1320 1980 50 140
TMOV20RP750E P2T750E TMOV20RP750M P2T750M 20 750 970 480 10000 6500 1080 1320 1980 100 175
Thermal Characteristics Current, Energy, Power Derating Curve
10
100
Typical
5A 80
2.5A
0.5A
0.125A 60
1
40
20
0.1
10 100 1000 10000 0
-55 50 60 70 80 90 100 110 120 130
Time(s)
AMBIENT TEMPERATURE ( [o] C)
Figure 1 Figure 2
PERCENT OF RATED VALUE
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Note : The TMOV[®] and iTMOV[®] varistors are intended, in conjunction with appropriate enclosure design, to help facilitate SPD module compliance to UL 1449, 3rd Edition Section 39.4 (abnormal overvoltage limited current requirements). Under these extreme abnormal overvoltage conditions, some units will exhibit substantial heating, arcing and venting prior to opening. Modules should be designed to contain this possibility. Application testing is strongly recommended.
For applications exceeding 85°C ambient temperature, the peak surge current and energy ratings must be reduced as shown above.
~~**Maximum Clamping Voltage for 14mm Parts**~~
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10000
Maximum Clamping Voltage
750V
Maximum Leakage Current 625V575V
550V
510V
460V
420V
385V
320V
300V
275V
1000
250V
230V
200V
175V
150V
140V
130V
115V
100
0.000001 0.00001 0.0001 0.001 0.01 0.1 1 10 100 1000 10000
Peak Current (A)
Figure 3
Clamping Voltage (V)
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## ~~**Maximum Clamping Voltage for 20mm Parts**~~
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10000
Maximum Clamping Voltage
Maximum Leakage Current 6 2 5 V5 7 5 V 7 5 0 V
5 5 0 V
5 1 0 V
4 6 0 V
4 2 0 V
3 8 5 V
3 2 0 V
3 0 0 V
2 7 5 V
1000
2 5 0 V
2 3 0 V
2 0 0 V
1 7 5 V
1 5 0 V
1 4 0 V
1 3 0 V
1 1 5 V
100
0.000001 0.00001 0.0001 0.001 0.01 0.1 1 10 100 1000 10000
Peak Current (A)
Figure 4
Clamping Voltage (V)
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© 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/13/16
**Metal-Oxide Varistors** (MOVs) Radial Lead Varistors > TMOV[®] and iTMOV[®] Varistor Series
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Repetitive Surge Capability for 14mm Parts
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Repetitive Surge Capability for 20mm Parts
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10000
1 2 15
10 [2]
10 [3]
10 [4]
1000 105
106
100
10
1
10 100 1000 10000
Figure 5 Impulse Duration (µs)
NOTE: Average power dissipation of transients should not exceed 0.6W
Wave Solder Profle
Because the TMOV [[®]] and iTMOV [[®]]
Non Lead–free Profle
300
Maximum Wave 240C
250
200
150
100
50
0
0 0.5 1 1.5 2 2.5 3 3.5 4
Figure 7 TIME(MINUTES)
Physical Specifcations
Lead Material Copper clad steel wire
Soldering Solderability per MIL–STD–202,
Characteristics Method 208
Cured, flame retardant epoxy polymer
Insulating Material
meets UL94 V–0 requirements
Marked with LF, voltage, UL/CSA logos,
Device Labeling
and date code
Peak Current (A)
TEMPERATURE (ºC)
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10000 1
2 15
102
10 [3]
10 [4]
1000
10 [5]
10 [6]
100
10
1
10 100 1000 10000
Figure 6 Impulse Duration (μs)
NOTE: Average power dissipation of transients should not exceed 1.0W
Lead–free Profle
300
Maximum Wave 260C
250
200
150
100
50
0
0 0.5 1 1.5 2 2.5 3 3.5 4
Figure 8 TIME(MINUTES)
Environmental Specifcations
Operating/Storage
-55°C to +85°C
Temperature
+85°C, 85% RH , 1000 hours
Humidity Aging
+/-10% typical voltage change
+85°C to -55°C 5 times
Thermal Shock
+/-10% typical voltage change
Solvent Resistance MIL–STD–202, Method 215
Moisture Sensitivity Level 1, J-STD-020
Peak Current (A)
TEMPERATURE (ºC)
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Because the TMOV[[®]] and iTMOV[[®]] varistors contain a thermal protection device, care must be taken when soldering the devices into place. Two soldering methods are possible. Firstly, hand soldering: It is recommended to heat-sink the leads of the device. Secondly, wave soldering: It is critically important that all preheat stage and the solder bath temperatures are rigidly controlled.
© 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/13/16
**Metal-Oxide Varistors** (MOVs) Radial Lead Varistors > TMOV[®] and iTMOV[®] Varistor Series
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## ~~**Lead Confgurations**~~
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TMOV [®] Varistor
Thermal
Fuse
Element
MOV
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Note: MOVs are non-polarized passive elements
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iTMOV [®] Varistor
2
Thermal
Fuse
Element
3 Monitor Lead
3 MOV
1 2 1
Monitor Lead
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## ~~**iTMOV[®] Varistor Application Examples**~~
The application examples below show how the indicator lead on the iTMOV **[® ]** varistor can be used to indicate that the thermal element has been opened. This signifies that the circuit is no longer protected from transients by the MOV.
## ~~**Application Example 1**~~
## ~~**Application Example 3**~~
In this case, the LED is normally on, and is off when the thermal element opens.
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Line
Line Fuse
iTMOV Varistor LED
R
Neutral
To Protected Circuit
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## ~~**Application Example 2**~~
This circuit utilizes an optocoupler to provide galvanic isolations between the iTMOV **[®]** varistor and the indicating or alarm circuitry.
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Line
Line Fuse
iTMOV Varistor
R
AC OPTOCOUPLER
TO STATUS
ANNUNCIATOR
LIGHT/ALARM
Neutral
To Protected Circuit
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This circuit illustrates the use of the monitoring lead of the iTMOV **[®]** varistor to ensure that equipment is only operated when overvoltage protection present. In normal operation the load switch relay solenoid is powered via the indicator lead of the iTMOV **[®]** varistor ~~. I~~ n the event of the thermal element being activated, the relay will de-activate, cutting power to the protected circuit and the fault LED will illuminate.
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Line
Line Fuse Load Switch Relay(loss of protection)
"Load Powered"
neon lamp
iTMOV Varistor
Fault LED
(Normallyoff)
R
Neutral
To Protected Circuit
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Please note: Indicator circuits are provided as a guideline only. Verification of actual indicator circuitry is the responsibility of the end user. Component values selected must be appropriate for the specific AC line voltage service and application.
© 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/13/16
**Metal-Oxide Varistors** (MOVs) Radial Lead Varistors > TMOV[®] and iTMOV[®] Varistor Series
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## ~~**Device Dimensions**~~
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Straight Lead Forms Curved Lead Forms
TMOV [®] Varistor iTMOV [®] Varistor TMOV [®] Varistor iTMOV [®] Varistor
(outer crimp) (inner crimp)
Dia D Dia D Dia D Dia D
A
A
Monitor Monitor
L3 Lead L3 Lead
L Seating L
Plane
Dia c Dia c
Dia b Dia b e3 Dia b Dia b e3
E E E E
e e1 e e1 e e1 e e1
e2 e2
TMOV [® ] Varistor iTMOV [®] Varistor
Dimension Voltage VRMS 14mm Size 20mm Size 14mm Size 20mm Size
Model Min. Max. Min. Max. Min. Max. Min. Max.
mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in) mm (in)
A
ALL 17.0 (0.669) 22.0 (0.866) 23.0 (0.906) 28.0 (1.10) 17.0 (0.669) 22.0 (0.866) 23.0 (0.906) 28.0 (1.10)
Straight Lead
A ALL -- 22.5 (0.886) -- 31.0 (1.221) -- 22.5 (0.886) -- 31.0 (1.221)
Crimped Lead
Dia D ALL 13.5 (0.531) 17.0 (0.669) 19.0 (0.748) 23.0 (0.906) 13.5 (0.531) 17.0 (0.669) 19.0 (0.748) 23.0 (0.906)
e ALL 6.5 (0.256) 8.5 (0.335) 6.5 (0.256) 8.5 (0.335) 6.5 (0.256) 8.5 (0.335) 6.5 (0.256) 8.5 (0.335)
115-175 1.5 (0.059) 4.0 (0.157) 1.5 (0.059) 4.0 (0.157) 1.5 (0.059) 4.0 (0.157) 1.5 (0.059) 4.0 (0.157)
e1 200-275 2.0 (0.079) 4.5 (0.177) 2.0 (0.079) 4.5 (0.177) 2.0 (0.079) 4.5 (0.177) 2.0 (0.079) 4.5 (0.177)
Bulk Pack 300-420 3.0 (0.118) 5.5 (0.217) 3.0 (0.118) 5.5 (0.217) 3.0 (0.118) 5.5 (0.217) 3.0 (0.118) 5.5 (0.217)
460-750 0 2.0 (0.079) 0 2.0 (0.079) 0 2.0 (0.079) 0 2.0 (0.079)
e1 115-420 0 2.0 (0.079) 0 2.0 (0.079) 0 2.0 (0.079) 0 2.0 (0.079)
Tape & Reel and
In-Line Lead 460-550* 0 2.0 (0.079) 0 2.0 (0.079) 0 2.0 (0.079) 0 2.0 (0.079)
e2 ALL n/a n/a n/a n/a 4.0 (0.138) 6.0 (0.236) 4.0 (0.157) 6.0 (0.236)
e3 ALL n/a n/a n/a n/a 0 2.0 (0.079) 0 2.0 (0.079)
115-175 -- 9.0 (0.335) -- 9.0 (0.335) -- 9.0 (0.335) -- 9.0 (0.335)
200-275 -- 9.5 (0.374) -- 9.5 (0.374) -- 9.5 (0.374) -- 9.5 (0.374)
E 300-460 -- 11.0 (0.433) -- 11.0 (0.433) -- 11.0 (0.433) -- 11.0 (0.433)
510-575 -- 12.0 (0.472) -- 12.0 (0.472) -- 12.0 (0.472) -- 12.0 (0.472)
625-750 -- 13.0 (0.512) -- 13.0 (0.512) -- 13.0 (0.512) -- 13.0 (0.512)
L ALL 25.4 (1.00) -- 25.4 (1.00) -- 25.4 (1.00) -- 25.4 (1.00) --
L3 ALL n/a n/a n/a n/a 6.0 (0.236) -- 6.0 (0.236) --
115-420 0.76 (0.030) 0.86 (0.034) 0.76 (0.030) 0.86 (0.034) 0.76 (0.030) 0.86 (0.034) 0.76 (0.030) 0.86 (0.034)
Dia b
460-750 0.76 (0.030) 0.86 (0.034) 0.95 (0.037) 1.05 (0.041) 0.76 (0.030) 0.86 (0.034) 0.95 (0.037) 1.05 (0.041)
Dia c
ALL n/a n/a n/a n/a 0.76 (0.030) 0.86 (0.034) 0.76 (0.030) 0.86 (0.034)
Outside Lead Only
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NOTES:
* Tape and Reel packaging option is available only for devices up to 420Vrms.
© 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/13/16
**Metal-Oxide Varistors** (MOVs) Radial Lead Varistors > TMOV[®] and iTMOV[®] Varistor Series
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## ~~**Tape and Reel Specifcation**~~
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iTMOV® VARISTOR WITH INNER CRIMP TMOV® VARISTOR WITH OUTER CRIMP
P E P E
P2 ∆P ∆P P2 ∆P ∆P
∆H ∆H ∆H ∆H
B1 B1
H1 SEATING PLANE C H1 SEATING PLANE C
W0 W2 W1 W0 W2 W1
H0 Øb H0 Øb
W W
ØD0 ØD0
P1P0 F t P1P0 F t
iTMOV® VARISTOR WITH STRAIGHT LEADS TMOV® VARISTOR WITH STRAIGHT LEADS
P E P E
P2 ∆P ∆P P2 ∆P ∆P
∆H ∆H ∆H ∆H
H1 H1
H W0 W2 W1 H W0 W2 W1
Øb Øb
L L
W W
ØD0 ØD0
P1P0 F t P1P0 F t
CRIMPED LEADS STRAIGHT LEADS
DESCRIPTION MODEL SIZE MODEL SIZE
14mm 20mm 14mm 20mm
B1 Component Top to Seating Plane 22.5 Max 31 Max 22.0 Max 28.0 Max
P Pitch of Component 25.4 +/- 1.0 25.4 +/- 1.0 25.4 ±1.0 25.4 ±1.0
P0 Feed Hole Pitch 12.7 +/- 0.2 12.7 +/- 0.2 12.7 ±0.2 12.7 ±0.2
P1 Feed Hole Center to Pitch 8.95 +/- 0.7 8.95 +/- 0.7 8.95 ±0.7 8.95 ±0.7
P2 Hole Center to Component Center 12.7 +/- 0.7 12.7 +/- 0.7 12.7 ±0.7 12.7 ±0.7
F Lead to Lead Distance 7.5 +/- 0.8 7.5 +/- 0.8 7.5 ±0.8 7.5 ±0.8
Δh Component Alignment 2.0 Max 2.0 Max 2.0 Max 2.0 Max
W Tape Width 18.0 +1.0/-0.5 18.0 +1.0/-0.5 18.0 +1.0/-0.5 18.0 +1.0/-0.5
W0 Hold Down Tape Width 12.0 +/- 0.3 12.0 +/- 0.3 12.0 ±0.3 12.0 ±0.3
W1 Hole Position 9.0 +0.75/-0.50 9.0 +0.75/-0.50 9.0 +0.75/-0.5 9.0 +0.75/-0.5
W2 Hold Down Tape Position 0.5 Max 0.5 Max 0.5 Max 0.5 Max
H Height from Tape Centre to Component -- -- 18.0 +2.0/-0 18.0 +2.0/-0
Base (non-crimped parts)
H0 Seating Plane Height (crimped parts only) 16.0 +/- 0.5 16.0 +/- 0.5 -- --
H1 Component Height 40.0 Max 46.5 Max 40.0 Max 46.5 Max
C Crimp Length (crimped parts only) 2.6 typ 2.6 typ -- --
D0 Feed Hole Diameter 4.0 +/- 0.2 4.0 +/- 0.2 4.0 ±0.2 4.0 ±0.2
t Total Tape Thickness 0.7 +/- 0.2 0.7 +/- 0.2 0.7 ±0.2 0.7 ±0.2
L Length of Clipped Lead 11.0 Max 11.0 Max 11.0 Max 11.0 Max
3 deg Max, 3 deg Max,
Δp Component Alignment 3 Max. 1.00mm 3 Max
1.0mm Max 1.0mm Max
**----- End of picture text -----**
NOTES:
- Dimensions in mm
- Reel capacity varies with voltage.
- Leads are crimped and in-line. This excludes the monitor lead on iTMOV[®] varistor which are not crimped and not in-line.
- To order tape and reel option please add suffix 'L2T7' to end of standard part number.
- Tape and reel option is available for rated voltages up to 420V. Contact factory regarding availability of higher voltages.
- Contact Littelfuse for additional details.
© 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/13/16
**Metal-Oxide Varistors** (MOVs) Radial Lead Varistors > TMOV[®] and iTMOV[®] Varistor Series
**==> picture [94 x 32] intentionally omitted <==**
## ~~**Part Numbering System**~~
**==> picture [345 x 257] intentionally omitted <==**
**----- Start of picture text -----**
Base Part Codes Option Codes [1]
(See ratings & specifications tables and notes below) (See below)
TMOV 20 R P 150 E XXXXX
DEVICE FAMILY NON-STANDARD LEAD FORM, PACKAGING
Littelfuse Thermally Protected MOV and LEAD SPACING OPTIONS [1] :
DISC DIAMETER (mm) L2B7: Lead Form: Crimped and In-Line [2] Leads
14 or 20mm Packaging: Bulk Pack
CERAMIC SHAPE Lead Spacing [3] : 7.5mm
R: Round
LEAD-FREE/RoHS L2T7: Lead Form: Crimped and In-Line [2] Leads
COMPLIANT INDICATOR Packaging: Tape and Reel [4]
Lead Spacing [3] : 7.5mm
V M(AC)RMS
115V to 750V L3T7: Lead Form: Straight Leads and In-Line [2] Leads
SERIES DESIGNATOR Packing: Tape and Reel
E: TMOV (2-Leaded, without indicator lead) Lead Spacing: 7.5mm
M: iTMOV (3-Leaded, with indicator lead option)
Option Codes:
X2855: Nickel Barrier coated wire option --
All standard parts use tinned copper clad steel wire.
Nickel Barrier coated wire is available as an option,
consisting of Copper wire with a flashing of Nickel
NOTES: followed by a top coating of Tin. To order append standard
model BASE PART number with "X2855." Example:
1 Use Base Part Code only to receive standard product: Standard Model Order As
Lead Form: Straight Leads. Devices greater than 420Vrms are TMOV20RP115E TMOV20RP115EX2855
provided In-Line [2] .
Lead Spacing: 7.5mm +/-1.0mmPackaging: Bulk Pack Other non-standard options may be available - please contact Littelfuse.
2 “In-Line” refers to straight row of leads at the tip where product is
to contact the circuit board. Refer to “e1” in Device Dimensions section.
3 Lead Spacing refers to span between leads as “e” dimension
in Device Dimensions section.
4 Due to device bulk, tape and reel packaging option is available only
for devices up to 420Vrms.
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## ~~**Pack Quantities**~~
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Pack Quantities
Rated Bulk Pack Tape and Reel
Voltage Model Size Model Size
14mm 20mm 14mm 20mm
115-250 600 400 500 400
275-550 500 300 400 300
575-750 400 200 n/a n/a
**----- End of picture text -----**
NOTE: Tape and Reel available up to 420V only - please contact factory regarding availability of higher voltage parts.
© 2016 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 04/13/16
## Links
- [View this product on Novapart](https://novapart.co/products/TMOV20RP275E/tvs-varistor-mov-275-v-350-tmov-710-disc-20mm)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/littelfuse/tmov20rp275e/varistor-radial-190j-275v/dp/1817008)
---
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