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031303.2HXP
CARTRIDGE FUSE, SLOW BLOW, 3.2A, 250V
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: LITTELFUSE
- Product type: Cartridge Fuses
- Blow Characteristic:Slow Blow; Fuse Current:3.2A; Voltage Rating VAC:250V; Fuse Size Metric:6.3mm x 32mm; Fuse Size Imperial:1/4" x 1-1/4"; Product Range:Slo-Blo 26K8497
- Fuse Current: 3.2A
- Product Range: Slo-Blo 313 Series
- Fuse Size Metric: 6.3mm x 32mm
- Fuse Size Imperial: 1/4" x 1-1/4"
- Voltage Rating VAC: 250V
- Blow Characteristic: Slow Blow
- Breaking Capacity Current AC: 100A
| Delivery and price | |
|---|---|
| Units per pack | 1000 |
| Price | 0.699 € |
| Current stock | 100+ |
| Lead time | 30 days |
Datasheet
**Axial Lead & Cartridge Fuses** 3AG > Time Lag > 313/315 Series ## **313/315 Series Lead-Free 3AG, Slo-Blo[®] Fuse** **==> picture [7 x 10] intentionally omitted <==** **----- Start of picture text -----**<br> PS<br>E<br>**----- End of picture text -----**<br> ## **Description** The 3AG Slo-Blo[®] fuse solves a broad range of application requirements while offering reliable performance and costeffective circuit protection. The fuse catalog number with the suffix “ID” instantly identifies itself upon opening by showing a discoloration of its glass body. Guesswork and time consuming circuit testing are eliminated. This unique design offers the same quality performance characteristics as the standard 3AG Slo-Blo[®] Fuse design. ## ~~**Agency Approvals** Li~~ |**Agency**|**Agency File Number**|**Ampere Range**| |---|---|---| |G@)|E10480|10mA - 10A**| |G.|LR 29862|10mA - 10A**/15A**| |W|E10480|10A - 30A| |**PS**<br>**E**<br>S|NBK 040205-<br>E10480B/D/F/G/H|1A - 10A**/ 15A**| |[6|SU05001-<br>5007/5008/5009/6004|2.25A - 8A| |i~~G~~||10mA - 10A**/15A**| ## ~~**Features**~~ Standard 248-14 Lead-free Available in cartridge and axial lead format and with various forming dimensions ## ~~**Applications** Po~~ Used as supplementary protection in appliance or utilization equipment to provide individual protection for components or internal circuits. ## ~~**Electrical Characteristics by Series** Po~~ |% of Ampere<br>Rating|Ampere Rating|Opening Time| |---|---|---| |100%|10mA – 30A|4 hours, Minimum| |135%|10mA – 30A|1 hour, Maximum| |200%|10mA – 15A|5 sec., Min.,<br>30 sec., Max| ||20A – 30A|5 sec., Min.,<br>60 sec Max| © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/313.html or /315.html for current information. **313/315 Series** **317** Revised: April 26, 2011 **Introduction to Circuit ProtectionAxial Lead & Cartridge Fuses** 3AG > Time Lag > 313/315 SeriesTransientology ## ~~**Electrical Characteristic Specifcations by Item**~~ **==> picture [505 x 596] intentionally omitted <==** **----- Start of picture text -----**<br> Nominal Agency Approvals<br>Amp Ampere Voltage Interrupting Cold Nominal<br>Code Rating (A) Rating (V) Rating Resistance I [2] Melting t (A [2] sec) PSE<br>(Ohms)<br>.010 0.01 250 4300.0000 0.000121 x x x<br>.031 0.031 250 430.0000 0.00303 x x x<br>.040 0.04 250 300.0000 0.00630 x x x<br>.062 0.062 250 120.0000 0.0210 x x x<br>.100 0.1 250 43.0000 0.0850 x x x<br>.125 0.125 250 30.0000 0.152 x x x<br>.150 0.15 250 20.0000 0.270 x x x<br>.175 0.175 250 8.6700 0.177 x x x<br>.187 0.187 250 8.0100 0.230 x x x<br>.200 0.2 250 35A@250Vac 6.5900 0.270 x x x<br>.250 0.25 250 10KA@125Vac 4.2700 0.385 x x x<br>.300 0.3 250 3.1350 0.730 x x x<br>.375 0.375 250 2.0950 1.23 x x x<br>.400 0.4 250 1.8750 1.35 x x x<br>.500* 0.5 250 1.2600 2.55 x x x<br>.600 0.6 250 0.9120 4.00 x x x<br>.700 0.7 250 0.7000 5.90 x x x<br>.750 0.75 250 0.6215 7.16 x x x<br>.800 0.8 250 0.5540 8.00 x x x<br>001.* 1 250 0.3750 14.0 x x x x<br>01.2 1.2 250 0.2780 21.5 x x x x<br>1.25 1.25 250 0.2600 24.0 x x x x<br>01.5* 1.5 250 0.1910 38.0 x x x x<br>01.6 1.6 250 0.1710 49.6 x x x x<br>01.8 1.8 250 0.1410 58.0 x x x x<br>100A@250Vac<br>002.* 2 250 0.1169 77.0 x x x x<br>10KA@125Vac<br>2.25 2.25 250 0.0968 121 x x x x x<br>02.5 2.5 250 0.0811 130 x x x x x<br>02.8 2.8 250 0.0675 170 x x x x x<br>003.* 3 250 0.0593 200 x x x x x<br>03.2 3.2 250 0.0529 209 x x x x x<br>004.* 4 250 0.0311 76.1 x x x x x<br>005.* 5 250 0.0214 140 x x x x x<br>6.25* 6.25 250 200@250Vac 0.0154 242 x x x x x<br>06.3 6.3 250 10KA@125Vac 0.0154 242 x x x x x<br>007.* 7 250 0.0128 347 x x x x x<br>008.* 8 250 0.0111 445 x x x x x<br>010.** 10 250 0.0083 760 x x x x<br>010.* 10 32 0.0083 760 x<br>012. 12 32 0.0065 1200 x<br>015.** 15 125 0.0050 1870 x x x x<br>300A@32Vac<br>015. 15 32 0.0050 1870 x<br>020. 20 32 0.0022 9560 x<br>025. 25 32 0.0017 16500 x<br>030. 30 32 0.0012 26900 x<br>**----- End of picture text -----**<br> - For 313series, these ratings available with an indicating option. Add the “ID” designation to the series number. i.e. 313.500ID. - ** These 2 ratings are designed for special voltage requirement. For 10A, it is available as 250Vac rated and the part number is 0313010. MX250P; for 15A, it is available as 125Vac rated and the part number is 0315015.MX125P. © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/313.html or /315.html for current information. **313/315 Series** **318** **Axial Lead & Cartridge Fuses** 3AG > Time Lag > 313/315 Series ## ~~**Temperature Rerating Curve**~~ **==> picture [244 x 194] intentionally omitted <==** **----- Start of picture text -----**<br> A<br>B<br>B<br>A<br>**----- End of picture text -----**<br> **A - For 313/315 Series, from 10mA to 150mA** **B - For all other ampere ratings of 313/315 series** ## ~~**Soldering Parameters - Wave Soldering**~~ **==> picture [243 x 172] intentionally omitted <==** **----- Start of picture text -----**<br> 300<br>280<br>260<br>240<br>220<br>200<br>180<br>160<br>140<br>120<br>100<br>80<br>60<br>40<br>20<br>0<br>Time (Seconds)<br>Preheat Time Cooling Time<br>Dwell Time<br>Temperature (°C) - Measured on bottom side of board 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240<br>**----- End of picture text -----**<br> ## ~~**Average Time Current Curves**~~ **==> picture [244 x 467] intentionally omitted <==** **----- Start of picture text -----**<br> 1000<br>100<br>10<br>1<br>0.1<br>0.01<br>0.05 0.1 1 10 100 1000<br>CURRENT IN AMPERES<br>Recommended Process Parameters:<br>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>1/16A 1/10A 15/100.175A 1/4A 3/8A 1/2A 3/4A 1A 1 1/2A 2A 3A 4A 5A 7A 8A 10A 12A15A 20A25A 30A<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.** © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/313.html or /315.html for current information. **313/315 Series** **319** **Introduction to Circuit ProtectionAxial Lead & Cartridge Fuses** 3AG > Time Lag > 313/315 SeriesTransientology ## ~~**Product Characteristics**~~ Body: Glass **Materials** Cap: Nickel–plated brass Leads: Tin–plated Copper MIL-STD-202G, Method 211A, Test **Terminal Strength** Condition A Reference IEC 60127 Second Edition **Solderability** 2003-01 Annex A Cap1: Brand logo, current and voltage **Product Marking** ratings Cap2: Series and agency approval marks |**Operating**<br>**Temperature**|–55ºC to +125ºC| |---|---| |**Thermal Shock**|MIL-STD-202G, Method 107G, Test<br>Condition B: (5 cycles -65°C to +125°C)| |**Vibration**|MIL-STD-202G, Method 201 A| |**Humidity**|MIL-STD-202G, Method 103B, Test<br>Condition A: High RH (95%) and Elevated<br>temperature (40°C) for 240 hours| |**Salt Spray**|MIL- STD-202G, Method 101D, Test<br>Condition B| ## ~~**Dimensions**~~ **==> picture [242 x 89] intentionally omitted <==** **----- Start of picture text -----**<br> 313 000P Series 315 000P Series<br>0.813 (.032") ( - 15A)1 100/<br>6.985 (.275") 1.016 (.040") (20 - 30A)<br>6.35 (.25")<br>31.75 32.385 38.1<br>(1.25") (1.275") (1.50") TYP.<br>Axial Lead Material: Tin coated copper.<br>**----- End of picture text -----**<br> ## ~~**Part Numbering System**~~ **==> picture [148 x 118] intentionally omitted <==** **----- Start of picture text -----**<br> 0313 xxxx M X P<br>Series<br>Amp Code<br>Refer to Amp Code column of<br>Electrical Characteristics Table<br>Quantity Code<br>M = 1000<br>Packaging Code<br>X = Filler<br>**----- End of picture text -----**<br> **Lead-free** ## ~~**Packaging**~~ **==> picture [505 x 93] intentionally omitted <==** **----- Start of picture text -----**<br> Quantity &<br>Packaging Option Packaging Specification Quantity Taping Width<br> Packaging Code<br>313 Series<br>Bulk N/A 1000 MX N/A<br>Bulk N/A 100 HX N/A<br>315 Series<br>Bulk N/A 1000 MX N/A<br>Bulk N/A 100 HX N/A<br>Bulk N/A 1000 MXB N/A<br>**----- End of picture text -----**<br> © 2009 Littelfuse, Inc. Specifications are subject to change without notice. Please refer to www.littelfuse.com/series/313.html or /315.html for current information. **313/315 Series** **320**
Updated at June 4, 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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