0473007.MRT1L..

FUSE, PCB, 7A, 125V, SLOW BLOW, FULL REEL

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Manufacturer: LITTELFUSE
Product type: PCB Fuses
Fuse Current:7A; Voltage Rating VAC:125V; Product Range:PICO II Slo-Blo 473 Series; Voltage Rating VDC:125V; Blow Characteristic:Slow Blow; Fuse Case Style:Axial Leaded; Body Ma
SVHC: To Be Advised
Fuse Current: 7A
Product Range: PICO II Slo-Blo 473 Series
Fuse Case Style: Axial Leaded
Voltage Rating VAC: 125V
Voltage Rating VDC: 125V
Blow Characteristic: Slow Blow
Breaking Capacity Current AC: 50A
Breaking Capacity Current DC: 50A

Delivery and price
Units per pack	2000
Price	0.992 €
Current stock	10+
Lead time	30 days

Datasheet

**Axial Lead & Cartridge Fuses** PICO[®] ll > Slo-Blo[®] Fuse > 473 Series 

## 473 Series, PICO[®] II Slo-Blo[®] Fuse 

## **RoH** ~~**S**~~ **PSE** ~~HFC AE ©~~ 

## ~~**Description**~~ 

The PICO[®] II Slo-Blo[®] Fuse combines time-delay performance characteristics with the proven reliability of a PICO[®] Fuse. 

## ~~**Features**~~ 

- Enhanced inrush • Halogen free and RoHS withstand complaint 

## ~~**Agency Approvals**~~ 

- Small size 

- Wide range of current ratings (0.375A - 7A) 

- Wide operating temperature range 

- Low temperature rerating 

## ~~**Applications**~~ 

|||~~**Applications**~~|
|---|---|---|
|**Agency**<br>**Agency File Number**||**Ampere Range**<br>~~**Applications**~~|
|E10480<br>29862<br>Wi<br>@.||0.375A - 7A<br>0.375A - 7A<br>• Flat–panel Display TV<br>• LCD monitor<br>• Lighting system<br>• Medical equipment<br>• Industrial equipment|
|**PS**<br>**E**<br>NBK200416-JP1021<br>~~LS~~||1A - 5A<br>~~**Electrical Characteristics**~~<br>~~[Po~~|
|% of Ampere<br>Rating<br>Opening Time<br>100%<br>4 Hours,**Min.**<br>200%<br>1 Sec.,**Min.**; 60 Sec.,**Max.**<br>300%<br>0.2 Sec.,**Min.**; 3 Sec.,**Max.**<br>800%<br>0.002 Sec.,**Min.**; 0.1 Sec.,**Max.**<br>**Additional Information**<br>**Datasheet**<br>**Samples**<br>**Resources**<br>ea ~~———~~|||
|~~**Electrical Characteristics**~~|||
||||
|Ampere<br>Rating<br>(A)<br>Amp<br>Code<br>Max<br>Voltage<br>Rating<br>(V)<br>0.375<br>.375<br>125<br>0.500<br>.500<br>125<br>0.750<br>.750<br>125<br>1.00<br>001.<br>125<br>1.50<br>01.5<br>125<br>2.00<br>002.<br>125<br>2.25<br>2.25<br>125<br>2.50<br>02.5<br>125<br>3.00<br>003.<br>125<br>3.50<br>03.5<br>125<br>4.00<br>004.<br>125<br>5.00<br>005.<br>125<br>7.00<br>007.<br>125<br>~~a~~<br>~~a~~<br>~~a~~<br>~~| |~~<br>~~a~~<br>~~| |~~<br>~~a~~<br>~~a~~<br>~~a~~<br>~~a~~<br>~~a~~<br>~~| |~~<br>~~a~~||Interrupting<br>Rating<br>Nominal Cold<br>Resistance<br>(Ohms)<br>Nominal<br>Melting<br>I2t (A2sec)<br>Nom<br>Voltage Drop<br>(mV)<br>AgencyApprovals<br>**PS**<br>**E**<br>50A@125VAC/DC<br>1.7550<br>0.085<br>0.840<br>X<br>X<br>1.1370<br>0.210<br>0.775<br>X<br>X<br>0.4900<br>0.760<br>0.429<br>X<br>X<br>0.3000<br>2.010<br>0.353<br>X<br>X<br>X<br>0.1170<br>3.940<br>0.208<br>X<br>X<br>X<br>0.0720<br>7.600<br>0.180<br>X<br>X<br>X<br>0.0640<br>9.280<br>0.164<br>X<br>X<br>X<br>0.0520<br>13.00<br>0.153<br>X<br>X<br>X<br>0.0380<br>21.00<br>0.140<br>X<br>X<br>X<br>0.0240<br>26.80<br>0.094<br>X<br>X<br>X<br>0.0200<br>35.00<br>0.086<br>X<br>X<br>X<br>0.0133<br>54.80<br>0.074<br>X<br>X<br>X<br>0.0092<br>105.00<br>0.070<br>X<br>X<br>po<br>Ww)<br>@/<<br>~~a~~<br>~~ee~~<br>~~es~~<br>~~es~~<br>~~a~~<br>~~es~~<br>~~es~~<br>~~a~~<br>~~es ee~~<br>~~es~~<br>~~es~~<br>~~es~~<br>~~es~~<br>~~a~~<br>~~es~~<br>~~es~~<br>~~a~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|



© 2018 Littelfuse, Inc. Application testing is strongly recommended. Specifications are subject to change without notice. Revised: 02/15/18 

**Axial Lead & Cartridge Fuses** PICO[®] ll > Slo-Blo[®] Fuse > 473 Series 

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Temperature Re-rating Curve<br>**----- End of picture text -----**<br>


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Note: 

Rerating depicted in this curve is in addition to the standard derating of 25% for continuous operation. 

## ~~**Soldering Parameters**~~ 

## **Recommended Process Parameters:** 

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Wave Parameter Lead-Free Recommendation<br>Preheat:<br>(Depends on Flux Activation Temperature) (Typical Industry Recommendation)<br>    Temperature Minimum: 100°C<br>    Temperature Maximum: 150°C<br>    Preheat Time: 60-180 seconds<br>Solder Pot Temperature: 260°C Maximum<br>Solder Dwell Time: 2-5 seconds<br>**----- End of picture text -----**<br>


## ~~**Average Time Current Curves**~~ 

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1000<br>100<br>10<br>1<br>0.1<br>0.01<br>0.1 1 10 100 1000<br>CURRENT IN AMPERES<br>.375A .50A .75A 1.0A 1.5A 2.0A 2.5A 3.0A 3.5A 4.0A 5.0A 7.0A<br>TIME IN SECONDS<br>**----- End of picture text -----**<br>


## **Recommended Hand-Solder Parameters:** 

Solder Iron Temperature: 350°C +/- 5°C Heating Time: 5 seconds max. 

**Note: These devices are not recommended for IR or Convection Reflow process.** 

© 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/15/18 

**Axial Lead & Cartridge Fuses** PICO[®] ll > Slo-Blo[®] Fuse > 473 Series 

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## ~~**Product Characteristics**~~ 

||Encapsulated, Epoxy-Coated Body;|||MIL-STD-202, Method 201 (10–55|
|---|---|---|---|---|
|**Materials**|Solder Coated Copper wire leads;<br>RoHS compliant Product: Pure Tin-coated||**Vibration**|Hz); MIL-STD-202, Method 204, Test<br>Condition C (55–2000 Hz at 10 G’s|
||Copper wire leads|||Peak)|
|**Solderability**<br>**Lead Pull Force**<br>**Operating**<br>**Temperature**<br>**Shock**|MIL-STD-202, Method 208<br>MIL-STD-202, Method 211, Test Condition<br>A (will withstand 7 lbs. axial pull test)<br>–60ºC to +125ºC (Consider re-rating)<br>MIL-STD-202, Method 213, Test Condition<br>I (100 G’s peak for 6 milliseconds)||**Salt Spray**<br>**Insulation Resistance**<br>**(After Opening):**<br>**Resistance to Soldering**<br>**Heat**<br>**Thermal Shock**|MIL-STD-202, Method 101, Test<br>Condition B<br>MIL-STD-202, Method 302, (10,000<br>ohms minimum at 100 volts)<br>MIL-STD-202, Method 210, Test<br>Condition C (20 sec at 260ºC)<br>MIL-STD-202, Method 107, Test<br>Condition B (–65ºC to 125ºC)|
||||**Moisture Resistance**|MIL-STD-202, Method 106 (90–98%<br>RH), Heat (65ºC)|



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Dimensions<br>62.7 (2.468")<br>52.4 (2.062")*<br>27.78 27.78<br>(1.094" ) 7.11 (.280") (1.094" )<br>3.43 (.135")<br>0.64 (.025") MAX<br>1 A L F<br>6.35 (.25") 5.0 (.197") 6.35 (.25")<br>tape tape<br>1 A L F<br>473 series markings<br>**----- End of picture text -----**<br>


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Part Numbering System<br>**----- End of picture text -----**<br>


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62.7 (2.468") 0473 xxxx Y R T1 L<br>52.4 (2.062")*<br>27.78 27.78<br>(1.094" ) 7.11 (.280") (1.094" ) Series<br>3.43 (.135")<br>0.64 (.025") 1 A L F MAX Current Rating<br>Refer to Amp Code column of<br>Electrical Characteristics Table<br>6.35 (.25") 5.0 (.197") 6.35 (.25")<br>tape tape Quantity<br>1 A L F Y = 4000<br>P = 2000<br>M = 1000<br>473 series markings<br>Type of Packaging<br>R = Reel<br>A = Ammo Pack<br>X = Loose Pack<br>Lead Length<br>T1: 52.4mm (2.062”)*<br>RoHS + HF<br>Packaging<br>Quantity &<br>Packaging Option Packaging Specification<br> Packaging Code<br>      Please refer to available quantities above<br>*T1: 52.4mm (2.062") Tape and Reel EIA 296<br>in "Part Numbering System”<br>**----- End of picture text -----**<br>


Notes:  *  T1 dimension is defined as the length of the component between the two tapes. The full component length is 62.7mm (2.468"). 

**Disclaimer Notice -** Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation.  Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation.  Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation.  The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications.  Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at **www.littelfuse.com/disclaimer-electronics.** 

© 2018 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 02/15/18

Updated at June 5, 2026

Founded in 1927 and headquartered in Chicago, Illinois, Littelfuse is a premier global manufacturer of circuit protection, power control, and sensing technologies. Widely recognized for pioneering the first small, fast-acting protective fuse, the company has grown into an industry leader whose highly reliable components are essential to modern industrial, transportation, and consumer electronics applications worldwide. At the core of the Littelfuse portfolio is an expansive and industry-leading range of circuit protection solutions. This encompasses a massive selection of traditional fuses, fuse holders, and resettable PTC thermistor fuses designed to safely interrupt overcurrent conditions. To defend against electrical overstress, Littelfuse also provides advanced transient voltage suppression (TVS) technologies, including thousands of specialized TVS diodes, TVS varistors, and gas discharge tubes (GDTs) that ensure robust defense against voltage spikes and environmental hazards. Beyond its foundational protection components, Littelfuse manufactures a diverse array of discrete semiconductors, sensors, and switching devices. Engineers rely on their high-performance thyristors, including TRIACs and SCRs, alongside power-efficient Schottky diodes and MOSFETs for demanding power control applications. Complemented by precision proximity sensors and highly reliable reed and solid-state relays, Littelfuse delivers the critical building blocks required for secure, efficient, and complete system design.

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