20102500021P
Fuse, Cartridge, Medium Acting, 250 mA, 250 V, 5mm x 20mm, 0.2" x 0.79", 201P Series
- Manufacturer: LITTELFUSE
- Product type: Cartridge Fuses
- Blow Characteristic:Time Delay; Fuse Current:250mA; Voltage Rating VAC:250V; Fuse Size Metric:5mm x 20mm; Fuse Size Imperial:-; Product Range:201 Series; Breaking Capacity Current
- SVHC: No SVHC (25-Jun-2020)
- Fuse Current: 250mA
- Product Range: 201P Series
- Fuse Size Metric: 5mm x 20mm
- Fuse Size Imperial: 0.2" x 0.79"
- Voltage Rating VAC: 250V
- Blow Characteristic: Medium Acting
- Breaking Capacity Current AC: 80A
| Delivery and price | |
|---|---|
| Units per pack | 100 |
| Price | 1.59 € |
| Current stock | 10+ |
| Lead time | 30 days |
**Cartridge and Axial Lead Fuses** 5×20mm > Medium Acting > 201P Series **R** ~~**oHS**~~ **Pb** ~~[_1© cFAMus~~ ## 201P Series, 5×20mm, Medium– ~~Acting Fuse~~ ## **Description** ~~Po~~ The 201P Series is a 5×20mm Medium–Acting, Time-lag, Glass Body Cartridge Fuse. ~~**Features** Po~~ - Visual fault indication • Worldwide availability - Direct solderable or • RoHS compliant and plug-in versions Lead-free ## ~~**Applications** Po~~ ## ~~**Agency Approvals** Lo~~ Used as supplementary protection in appliance or utilization equipment to provide individual protection for components or internal circuits. **==> picture [500 x 441] intentionally omitted <==** **----- Start of picture text -----**<br> |||||||||| |---|---|---|---|---|---|---|---|---| |Agency|Agency File Number|Ampere Range| |E67006|0.050A-1.25A| |Electrical Characteristics for Series| |% of Ampere| |Opening Time| |Additional Information|Rating| |150|1 Hour Minimum| |210|600 s Maximum| |400|40 ms Minimum 2 s Maximum| |Datasheet|Resources|Samples|Accessories|1000|5 ms Minimum 90 ms Maximum| |ne|———| |For recommended fuse accessories for this product series,| |see ‘Recommended Accessories’ section.| |Electrical Characteristic Specifcations by Item| |Nominal|Nominal|Power|Agency| |Amp|Amp|Voltage|Resistance|Melting Integral|Voltage|Dissipation|Approvals| |Code|Rating|Rating|Interrupting Rating|Cold Ohms|10 x IN|Drop 1.0 x Imax. (mV)N|1.5 x IN| |(mohms)|(A|[2]|s)|max. (W)|Wk|us| |0050|0.050|250V|9200|0.00900|640|0.10000|x| |||||ee|ee|ee| |0063|0.063|250V|7400|0.01100|600|0.10000|x| |a|ee|ee|ee|ee| |0080|0.080|250V|5330|0.01700|540|0.20000|x| |ft|es|ee|ee|ee| |0100|0.100|250V|3550|0.03100|500|0.20000|x| |||||a|ee|ee| |0125|0.125|250V|2650|0.05700|440|0.20000|x| |||et|es|ee|ee| |0160|0.160|250V|1780|0.08500|400|0.20000|x| |ft|ee|ee|ee| |0200|0.200|250V|1250|0.12000|340|0.30000|x| |ft|es|ee|ee|ee| |0250|0.250|250V|80A @ 250VAC|870|0.13000|320|0.30000|x| |fT|ee|ee|ee| |0315|0.315|250V|590|0.16000|300|0.30000|x| |||et|es|ee|ee| |0400|0.400|250V|435|0.28000|230|0.40000|x| |ft|ee|ee|ee|ee| |0500|0.500|250V|160|0.35000|210|0.40000|x| |||TT|ee|ee ee| |0630|0.630|250V|130|0.80900|190|0.50000|x| |Pt|es|ee|ee| |0800|0.800|250V|85|1.10000|170|0.60000|x| |a|a|ee ee| |1100|1.000|250V|70|2.00000|160|0.70000|x| |||et|es|ee|ee| |1125|1.250|250V|50|5.12000|160|0.80000|x| |||||ee| **----- End of picture text -----**<br> Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand. © 2018 Littelfuse, Inc. Specifications are subject to change without notice. Application testing is strongly recommended. Revised: 02/14/18 **Cartridge and Axial Lead Fuses** 5×20mm > Medium Acting > 201P Series **==> picture [94 x 32] intentionally omitted <==** **==> picture [261 x 19] intentionally omitted <==** **----- Start of picture text -----**<br> Temperature Re-rating Curve<br>**----- End of picture text -----**<br> **==> picture [243 x 200] intentionally omitted <==** ## ~~**Average Time Current Curves**~~ **==> picture [243 x 294] intentionally omitted <==** **----- Start of picture text -----**<br> I-t Characteristics<br>(Min-Max Limit)<br>DIN 41571, T.2 (50mA ... 1.25A)<br>1 1.5 2 3 4 5 6 7 8 9 10 15<br>IFault / IRated<br>100,000<br>10,000<br>1,000<br>100<br>10<br>1<br>0.1<br>0.01<br>0.001<br>Time (sec.)<br>**----- End of picture text -----**<br> ## ~~**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> ## **Recommended Process Parameters:** **==> picture [244 x 101] intentionally omitted <==** **----- Start of picture text -----**<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>**----- 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: 02/14/18 **Cartridge and Axial Lead Fuses** 5×20mm > Medium Acting > 201P Series **==> picture [93 x 32] intentionally omitted <==** **==> picture [523 x 568] intentionally omitted <==** **----- Start of picture text -----**<br> Product Characteristics<br>Body: Glass Operating Temperature -25ºC to +70ºC<br>End Caps: Nickel–plated brass<br>Materials Optional Holders: Nickel-plated caps Climatic Category -25ºC/+70ºC/21 days (IEC 60068-1-3)<br> Tin-plated wires -10ºC to +60ºC RH,<br>Product Cap1: Brand mark, current and voltage ratings Stock Conditions ≤ 75% yearly average, without dew,<br>Marking Cap2: Series and agency approval marks maximum value for 30 days-95%<br>Solderability MIL-STD-202, Method 208 24 cycles at 15 min. each<br>(IEC 60068-2-6)<br>Vibration Resistance<br>Soldering Heat 10 - 60 Hz at 0.75 mm amplitude<br>260ºC, 10 sec. (IEC 60068-2-20)<br>Resistance 60 - 2000 Hz at 10 g acceleration<br>Dimensions Part Numbering System<br>max. 5.5<br> 201 xxxx 0 xx 1 P<br>Ø 5.2 +0.1/-0.2<br>20 +0.5/-0.5 Series Lead-free<br>0.65 +0.04/-0.01 Current Rating Code Filler<br>Refer to Amp Code column of<br>Ø 5.9 Electrical Characteristics Table<br>21 +0.5/-0.5 Filler Packaging Code<br>Refer to below Packaging<br>103.5 max.<br>Packaging<br>Packaging Code Fuse Type Packing Option Quantity<br>00 Cartridge Type Fuse Bulk 1000<br>02 Cartridge Type Fuse Bulk 100<br>30 Cartridge Type Fuse Bulk with Four Color Code 1000<br>43 Axial Lead Fuse Tape and Reel 1250<br>53 Axial Lead Fuse Tape and Reel with Four Color Code 1250<br>Recommended Accessories<br>Max Max<br>Accessory<br>Series Description Application Application<br>Type<br>Voltage Amperage<br>345_ISF Panel Mount Shock-Safe Fuseholder 10<br>Holder 345 Shock-Safe Fuseholder with PC Mount, Solder Mount and Panel Mount options 20<br>830 PC Mount Shock-Safe Miniature Fuseholder 16<br>520 Metric OMNI-BLOK® Fuse Block 10<br>Block 646 PC Mount Miniature Fuse Block 250 6.3<br>658 Surface Mount Miniature Fuse Block 10<br>520_W PC Mount Miniature Fuse Clip 6.3<br>Clip 111 PC Board Mount Fuse Clip 10<br>445 PC Board Mount Fuse Clip 10<br>**----- End of picture text -----**<br> Notes: 1. Do not use in applications above rating. 2. Please refer to fuseholder data sheet for specific re-rating information. 3. Please contact factory for applications greater than the max voltage and amperage shown. **Disclaimer Notice** - 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: 02/14/18
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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