# Schottky Rectifier, 120 V, 30 A, Dual Common Cathode, TO-220AB, 3 Pins, 1.02 V
**URL**: https://novapart.co/products/STPS30120CT/schottky-rectifier-120-v-30-a-dual-common-cathode
**SKU**: STPS30120CT
**Manufacturer**: STMICROELECTRONICS
**Category**: Semiconductors - Discretes || Diodes & Rectifiers || Schottky Diodes || Schottky Rectifier Diodes
**Price**: €0.9920
**Stock**: 200+
**Lead Time**: 120 days (indicative)
## Description
Repetitive Reverse Voltage Vrrm Max:120V; Forward Current If(AV):30A; Diode Configuration:Dual Common Cathode; Diode Case Style:TO-220AB; No. of Pins:3Pins; Forward Voltage VF Max:1.0
## Specifications
| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 3Pins |
| Product Range | - |
| Qualification | - |
| Diode Mounting | Through Hole |
| Diode Case Style | TO-220AB |
| Diode Configuration | Dual Common Cathode |
| Forward Voltage Max | 1.02V |
| Forward Surge Current | 180A |
| Average Forward Current | 30A |
| Operating Temperature Max | 175°C |
| Repetitive Peak Reverse Voltage | 120V |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:2806763/)
**STPS30120C**
**==> picture [61 x 39] intentionally omitted <==**
## Power Schottk rectifier y
## **Features**
- High junction temperature capability
- Avalanche rated
- Low leakage current
- Good trade-off between leakage current and forward voltage drop
## **Description**
Dual center tap Schottky rectifier suited for high frequency switch mode power supply.
Packaged in TO-220AB, TO-220AB narrow leads, and I[2] PAK, this device is intended to be used in notebook and LCD adaptors, desktop SMPS, providing in these applications a margin between the remaining voltages applied on the diode and the voltage capability of the diode.
## **Figure 1. Electrical characteristics[(a)]**
**==> picture [163 x 158] intentionally omitted <==**
**----- Start of picture text -----**
I
V
"Forward"
I
2 x IO X
IF
IO X
VRRM
VAR VR
V
IR
VTo VF(Io) VF VF(2xIo)
"Reverse"
IAR
**----- End of picture text -----**
**==> picture [186 x 130] intentionally omitted <==**
**----- Start of picture text -----**
A1
K
A2
K
K
A2 A2
K K
A1 A1
TO-220AB I [2] PAK
STPS30120CT STPS30120CR
**----- End of picture text -----**
**==> picture [102 x 91] intentionally omitted <==**
**----- Start of picture text -----**
K
A2
A1 K
TO-220AB narrow leads
STPS30120CTN
**----- End of picture text -----**
## **Table 1. Device summary**
|**Symbol**|**Value**|
|---|---|
|IF(AV)|2 x 15 A|
|VRRM|120 V|
|Tj(max)|175 °C|
|VF(typ)|0.57 V|
- a. VARM and IARM must respect the reverse safe operating area defined in _Figure 10_ . VAR and IAR are pulse measurements (tp < 1 µs). VR, IR, VRRM and VF, are static characteristics.
1/9
January 2012
Doc ID 11213 Rev 4
_www.st.com_
**Characteristics**
**STPS30120C**
## **1 Characteristics**
## **Table 2. Absolute ratings (limiting values, per diode)**
|**Table 2.**|**Absolute ratings (limiting values,per diode)**|**Absolute ratings (limiting values,per diode)**|**Absolute ratings (limiting values,per diode)**|||
|---|---|---|---|---|---|
|**Symbol**|**Parameter**|||**Value**|**Unit**|
|VRRM|Repetitive peak reverse voltage|||120|V|
|IF(RMS)|Forward rms current|||30|A|
|IF(AV)|Average forward
current|δ =0.5
Tc= 145 °C|Per diode
Per device|15
30|A|
|IFSM|Surge non repetitive forward current||tp= 10 ms sinusoidal|180|A|
|PARM|Repetitive peak avalanche power||tp= 1 µs Tj= 25 °C|6700|W|
|VARM
(1)|Maximum repetitive
peak avalanche voltage|tp= 1 µs, Tj< 150 °C, IAR< 13.4 A||150|V|
|VASM
(1)|Maximum single pulse
peak avalanche voltage|tp= 1 µs, Tj< 150 °C, IAR< 13.4 A||150|V|
|Tstg|Storage temperature range|||-65 to + 175|°C|
|Tj|Maximum operating junction temperature(2)|||175|°C|
|1.
Refer to_Figure 10_
2.
condition to avoid thermal runaway for a diode on its own heatsink
**Table 3.**
**Thermalparameters**
dPtot
dTj
<
1
Rth(j-a)|1.
Refer to_Figure 10_
2.
condition to avoid thermal runaway for a diode on its own heatsink
**Table 3.**
**Thermalparameters**
dPtot
dTj
<
1
Rth(j-a)|1.
Refer to_Figure 10_
2.
condition to avoid thermal runaway for a diode on its own heatsink
**Table 3.**
**Thermalparameters**
dPtot
dTj
<
1
Rth(j-a)|1.
Refer to_Figure 10_
2.
condition to avoid thermal runaway for a diode on its own heatsink
**Table 3.**
**Thermalparameters**
dPtot
dTj
<
1
Rth(j-a)|1.
Refer to_Figure 10_
2.
condition to avoid thermal runaway for a diode on its own heatsink
**Table 3.**
**Thermalparameters**
dPtot
dTj
<
1
Rth(j-a)|
|---|---|---|---|---|
|**Symbol**|**Parameter**||**Value**|**Unit**|
|Rth(j-c)|Junction to case|Per diode
Total|2.2
1.3|°C/W|
|Rth(c)|Coupling|Total|0.3|°C/W|
When the diodes 1 and 2 are used simultaneously : Tj(diode 1) = P(diode 1) x Rth(j-c)(per diode) + P(diode 2) x Rth(c)
2/9
Doc ID 11213 Rev 4
**STPS30120C**
**Characteristics**
**Table 4. Static electrical characteristics (per diode)**
|**Table 4.**|**Static electrical characteristics(per diode)**|**Static electrical characteristics(per diode)**|**Static electrical characteristics(per diode)**|||||
|---|---|---|---|---|---|---|---|
|**Symbol**|**Test conditions**|||**Min.**|**Typ.**|**Max.**|**Unit**|
|IR
(1)|Reverse leakage current|Tj= 25 °C|VR= VRRM|||15|µA|
|||Tj= 125 °C|||2.5|7.5|mA|
|VF
(2)|Forward voltage drop|Tj= 25 °C|IF= 5 A|||0.74|V|
|||Tj= 125 °C|||0.57|0.61||
|||Tj= 25 °C|IF= 15 A|||0.92||
|||Tj= 125 °C|||0.7|0.74||
|||Tj= 25 °C|IF= 30 A|||1.02||
|||Tj= 125 °C|||0.83|0.89||
1. Pulse test : tp = 5 ms, δ < 2%
2. Pulse test : tp = 380 μs, δ < 2%
To evaluate the maximum conduction losses use the following equation : P = 0.59 x IF(AV) + 0.01 IF2(RMS)
## **Figure 2. Average forward power dissipation versus average forward current (per diode)**
**Figure 3. Average forward current versus ambient temperature (** δ **= 0.5, per diode)**
**==> picture [462 x 341] intentionally omitted <==**
**----- Start of picture text -----**
PF(AV)(W) IF(AV)(A)
15 18
14 δ = 0.1 δ = 0.2 δ = 0.5
13 δ = 0.05 16 Rth(j-a)=Rth(j-c)
12 14
11
10 δ = 1 12
9
8 10 Rth(j-a)=15°C/W
7 8
6
5 6
4
3 T 4 T
2 2
1 IF(AV)(A) δ [=tp/T] tp δ [=tp/T] tp Tamb(°C)
0 0
0 2 4 6 8 10 12 14 16 18 0 25 50 75 100 125 150 175
Figure 4. Normalized avalanche power Figure 5. Normalized avalanche power
derating versus pulse duration derating versus junction
temperature
PARM(tp) PARM(T )j
1 PARM(1µs) 1.2 PARM(25 °C)
1
0.1 0.8
0.6
0.01 0.4
0.2
0.001 tp(µs) 0 Tj(°C)
0.01 0.1 1 10 100 1000 25 50 75 100 125 150
**----- End of picture text -----**
3/9
Doc ID 11213 Rev 4
**Characteristics**
**STPS30120C**
## **Figure 6. Relative variation of thermal impedance junction to ambient versus pulse duration**
**Figure 7. Reverse leakage current versus reverse voltage applied (typical values, per diode)**
**==> picture [435 x 331] intentionally omitted <==**
**----- Start of picture text -----**
Zth(j-c)/Rth(j-c) IR(mA)
1.0 1.E+02
0.90.8 PeeeaOpeedOOCee 0 Ca 1.E+01 OyeEERESSSSSeee e se se tseeae SS T =150°Cj ~es2SsSSsSSSSseene 2-5
0.7 ee a OO de 1.E+00 Fe a T =125°Cj ee
0.6 EEEA PATE 1.E-01 gesea oenEsassS=esee es T =100°Cj =52
0.5 ree tec ETE ee iqennnaesaeells== T =75°Cj
1.E-02
0.4 FEET Er SB See a T =50°Cj Soo 558
0.3 a a Li 1.E-03 ————————= e SSSe= SSSa
T
0.2 T =25°Cj
Stoe Single pulse een oe |rn 1.E-04 BoEfSeEE e Eze Egge ae——— essa eae!
0.1 tp(s) δ [=tp/T] tp VR(V)
0.0 Sa S S Con oe (| 1.E-05 Ceporocaneae queecacaeaaeee
1.E-03 1.E-02 1.E-01 1.E+00 0 10 20 30 40 50 60 70 80 90 100 110 120
Junction capacitance versus Figure 9. Forward voltage drop versus
reverse voltage applied forward current (per diode)
(typical values, per diode)typical values, per diode)ypical values, per diode)ical values, per diode)per diode)er diode))
C(pF) IFM(A)
1000 100
F=1MHz
a ——ee VOSCT =25°C=30mVj RMS oH = SSoe (maximum values)T =125°Cj Seoe =
p—fPet trie a a ee
100 eeeeee eelllee 10 |SRReee.es| | eee| (typical values)T =125°Cj aa,ee47ee (maximum values)T =25°Cj Lt4eeeeeefo
ee ee ee ee er Etit
a a oT
es es ee Oe Oe Os [ [| [| | [| FAT wet tT | tT tT tT ft tf
VR(V) VFM(V)
10 1
1 10 100 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
**----- End of picture text -----**
## **Figure 8. Junction capacitance versus Figure 9. Forward voltage drop versus reverse voltage applied forward current (per diode) (typical values, per diode)typical values, per diode)ypical values, per diode)ical values, per diode)per diode)er diode))**
## **Figure 10. Reverse safe operating area (tp < 1 µs and Tj < 150 °C)**
**==> picture [220 x 137] intentionally omitted <==**
**----- Start of picture text -----**
18 Iarm (A)
17
16
15
14
13 es
12
11 Varm (V)
120 130 140 150 160 170
**----- End of picture text -----**
4/9
Doc ID 11213 Rev 4
**STPS30120C**
**Package information**
## **2 Package information**
- Epoxy meets UL94, V0
- Cooling method: by conduction (C)
- Recommended torque value: 0.4 to 0.6 N·m
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK[®] packages, depending on their level of environmental compliance. ECOPACK[®] specifications, grade definitions and product status are available at: www.st.com. ECOPACK[®] is an ST trademark.
## **Table 5. TO-220AB dimensions**
|**L2**|||||**A**
**C**
**D**
**L7**
**ia**
**L5**
**L6**
**L9**
**L4**
**2**
**G**
**E**
**M**|**A**
**C**
**D**
**L7**
**ia**
**L5**
**L6**
**L9**
**L4**
**2**
**G**
**E**
**M**|**Ref.**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|---|---|---|---|---|---|---|
|||||||||**Millimeters**||**Inches**||
|||||||||**Min.**|**Max.**|**Min.**|**Max.**|
||||||||A|4.40|4.60|0.173|0.181|
||||||||C|1.23|1.32|0.048|0.051|
|||||**H**||||||||
||||||||D|2.40|2.72|0.094|0.107|
|||||**D**|**ia**|||||||
||||||||E|0.49|0.70|0.019|0.027|
|||||||**L5**|F
|0.61|0.88|0.024|0.034|
|||**F2**
**F1**||||||||||
||||||||F1|1.14|1.70|0.044|0.066|
|||||||||||||
||||||||F2|1.14|1.70|0.044|0.066|
||||||||G|4.95|5.15|0.194|0.202|
||||||||G1|2.40|2.70|0.094|0.106|
|||||**F**|||H2|10|10.40|0.393|0.409|
||||||||L2|16.4 typ.||0.645 typ.||
|||||**G1**||||||||
||||||||L4|13|14|0.511|0.551|
||||||||L5|2.65|2.95|0.104|0.116|
||||||||L6|15.25|15.75|0.600|0.620|
|||||||||||||
||||||||L7|6.20|6.60|0.244|0.259|
||||||||L9|3.50|3.93|0.137|0.154|
||||||||M|2.6 typ.||0.102 typ.||
||||||||Diam.|3.75|3.85|0.147|0.151|
5/9
Doc ID 11213 Rev 4
**STPS30120C**
**Package information**
**Table 6. TO-220AB narrow leads dimensions**
|L20
b1(x3)
e
1
2||||||F
D1
1
A
C|F
D1
1
A
C|**Ref.**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||||||**Millimeters**|||**Inches**|||
||||||||||**Min.**|**Typ.**|**Max.**|**Min.**|**Typ.**|**Max.**|
|||||||||A|4.40||4.60|0.17||0.18|
|||||||||b|0.61||0.88|0.024||0.034|
|||||||||b1|0.95||1.20|0.037||0.047|
|||E||||F|A||||||||
|||||||||c|0.48||0.70|0.019||0.027|
||||||||||||||||
|||||||||D|15.25||15.75|0.60||0.62|
||||Q||D
H|1|||||||||
||||L1||||||||||||
|||||||||D1|1.27|||0.05|||
|||||||D1|||||||||
|||||||||E|10.00||10.40|0.39||0.41|
|||||||||e|2.40||2.70|0.094||0.106|
||||||J1||||||||||
|||||||||e1|4.95||5.15|0.19||0.20|
|||||||||F|1.23||1.32|0.048||0.052|
|||||||||H1|6.20||6.60|0.24||0.26|
|||||||||J1|2.40||2.72|0.095||0.107|
|||||||||L|13.00||14.00|0.51||0.55|
||||||||||||||||
|||||||||L1|2.60||2.90|0.102||0.114|
|||||||||L20|15.40|||0.61|||
|||||||||L30|28.90|||1.14|||
|||||||||∅P|3.75||3.85|0.147||0.151|
|||||||||Q|2.65||2.95|0.104||0.116|
6/9
Doc ID 11213 Rev 4
**STPS30120C**
**Package information**
Devices in I[2] PAK with nickel-plated back frame must NOT be mounted by frame soldering like SMDs. Such devices are intended to be through-hole mounted ONLY and in no circumstances shall ST be held liable for any lack of performance or damage arising out of soldering of nickel-plated back frames.
**Table 7. I[2] PAK dimensions**
|**L2**
**L**|**L2**
**L**|||||||**c**
**A**|**Ref.**|**Dimensions**|**Dimensions**|**Dimensions**|**Dimensions**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||||||||||**Millimeters**||**Inches**||
||||||||**c2**|||**Min.**|**Max.**|**Min.**|**Max.**|
|||||||||||||||
||||||||||A|4.40|4.60|0.173|0.181|
||||||**E**|||||||||
||||||||||A1|2.40|2.72|0.094|0.107|
||||||||||b|0.61|0.88|0.024|0.035|
||||||||||b1|1.14|1.70|0.044|0.067|
||||||||||c|0.49|0.70|0.019|0.028|
||||||||||c2|1.23|1.32|0.048|0.052|
||||**L1**||**e**||**A1**||D|8.95|9.35|0.352|0.368|
||||||||||e|2.40|2.70|0.094|0.106|
||||||||||e1|4.95|5.15|0.195|0.203|
||||||||||E|10|10.40|0.394|0.409|
|||||||||||||||
||||||||||L|13|14|0.512|0.551|
||||||||||L1|3.50|3.93|0.138|0.155|
|||||||||||||||
||||||||||L2|1.27|1.40|0.050|0.055|
7/9
Doc ID 11213 Rev 4
**Ordering information**
**STPS30120C**
## **3 Ordering information**
## **Table 8. Ordering information**
|**Order code**|**Marking**|**Package**|**Weight**|**Base qty**|**Delivery mode**|
|---|---|---|---|---|---|
|STPS30120CT|STPS30120CT|TO-220AB|2.23 g|50|Tube|
|STPS30120CR|STPS30120CR|I2PAK|1.49 g|50|Tube|
|STPS30120CTN|STPS30120CTN|TO-220AB
narrow leads|1.9 g|50|Tube|
## **4 Revision history**
## **Table 9. Document revision history**
|**Date**|**Revision**|**Changes**|
|---|---|---|
|18-Feb-2005|1|First issue.|
|23-Nov-2006|2|Reformatted to current standards. Added I2PAK package.|
|17-Feb-2010|3|Updated_Table 2_. Added_Figure 1_and_Figure 10._|
|13-Jan-2012|4|Added TO-220AB narrow leads package.|
8/9
Doc ID 11213 Rev 4
**STPS30120C**
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9/9
Doc ID 11213 Rev 4
## Links
- [View this product on Novapart](https://novapart.co/products/STPS30120CT/schottky-rectifier-120-v-30-a-dual-common-cathode)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/stmicroelectronics/stps30120ct/schottky-rect-dual-120v-to-220ab/dp/2806763)
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