© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/14/18
5×20mm > Medium Acting > 201P Series
Cartridge and Axial Lead Fuses
201P Series, 5×20mm, Medium–Acting Fuse
Agency Approvals
Features
Electrical Characteristics for Series
• Visual fault indication
• Direct solderable or
plug-in versions
• Worldwide availability
• RoHS compliant and
Lead-free
Applications
Electrical Characteristic Specifications by Item
Amp
Code
Amp
Rating
Voltage
Rating Interrupting Rating
Nominal
Resistance
Cold Ohms
(mohms)
Nominal
Melting Integral
10 x IN
(A2s)
Voltage
Drop 1.0 x IN
max. (mV)
Power
Dissipation
1.5 x IN
max. (W)
Agency
Approvals
0050 0.050 250V
80A @ 250VAC
9200 0.00900 640 0.10000 x
0063 0.063 250V 74 0 0 0.0110 0 600 0.10000 x
0080 0.080 250V 5330 0.01700 540 0.20000 x
0100 0.100 250V 3550 0.03100 500 0.20000 x
0125 0.125 250V 2650 0.05700 440 0.20000 x
0160 0.160 250V 1780 0.08500 400 0.20000 x
0200 0.200 250V 1250 0.12000 340 0.30000 x
0250 0.250 250V 870 0.13000 320 0.30000 x
0315 0.315 250V 590 0.16000 300 0.30000 x
0400 0.400 250V 435 0.28000 230 0.40000 x
0500 0.500 250V 160 0.35000 210 0.40000 x
0630 0.630 250V 130 0.80900 190 0.50000 x
0800 0.800 250V 85 1.10000 170 0.60000 x
110 0 1.000 250V 70 2.00000 160 0.70000 x
112 5 1.250 250V 50 5.12000 160 0.80000 x
Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.
Application testing is strongly recommended.
Agency Agency File Number Ampere Range
E67006 0.050A-1.25A
% of Ampere
Rating Opening Time
150 1 Hour Minimum
210 600 s Maximum
400 40 ms Minimum 2 s Maximum
1000 5 ms Minimum 90 ms Maximum
The 201P Series is a 5×20mm Medium–Acting, Time-lag,
Glass Body CartridgeFuse.
Used as supplementary protection in appliance or
utilization equipment to provide individual protection for
components or internal circuits.
RoHS
Description
Additional Information
Datasheet Samples
Resources Accessories
For recommended fuse accessories for this product series,
see ‘Recommended Accessories’ section.
Pb
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/14/18
5×20mm > Medium Acting > 201P Series
Cartridge and Axial Lead Fuses
Average Time Current Curves
0.001
0.01
0.1
1
10
100
1,000
10,000
100,000
Time (sec.)
II
II
I
FaultFault
FaultFault
Fault
/ I / I
/ I / I
/ I
RatedRated
RatedRated
Rated
2 3 4 5 6 7 8 9 011 151.5
DIN 41571, T.2 (50mA ... 1.25A)
I-t Characteristics
(Min-Max Limit)
Temperature Re-rating Curve
Soldering Parameters - Wave Soldering
Dwell Time
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
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
Time (Seconds)
Temperature (°C) - Measured on bottom side of board
Cooling Time
Preheat Time
Wave Parameter Lead-Free Recommendation
Preheat:
(Depends on Flux Activation Temperature) (Typical Industry Recommendation)
Temperature Minimum: 100°C
Temperature Maximum: 150°C
Preheat Time: 60-180 seconds
Solder Pot Temperature: 260°C Maximum
Solder Dwell Time: 2-5 seconds
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.
Recommended Process Parameters:
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/14/18
5×20mm > Medium Acting > 201P Series
Cartridge and Axial Lead Fuses
Product Characteristics
Operating Temperature -25ºC to +70ºC
Climatic Category -25ºC/+70ºC/21 days (IEC 60068-1-3)
Stock Conditions
-10ºC to +60ºC RH,
≤ 75% yearly average, without dew,
maximum value for 30 days-95%
Vibration Resistance
24 cycles at 15 min. each
(IEC 60068-2-6)
10 - 60 Hz at 0.75 mm amplitude
60 - 2000 Hz at 10 g acceleration
max. 5.5
0.65 +0.04/-0.01
20 +0.5/-0.5
21 +0.5/-0.5
103.5 max.
Ø 5.2 +0.1/-0.2
Ø 5.9
Materials
Body: Glass
End Caps: Nickel–plated brass
Optional Holders: Nickel-plated caps
Tin-plated wires
Product
Marking
Cap1: Brand mark, current and voltage ratings
Cap2: Series and agency approval marks
Solderability MIL-STD-202, Method 208
Soldering Heat
Resistance 260ºC, 10 sec. (IEC 60068-2-20)
Dimensions
Packaging Code Fuse Type Packing Option Quantity
00 Cartridge Type Fuse Bulk 1000
02 Cartridge Type Fuse Bulk 100
30 Cartridge Type Fuse Bulk with Four Color Code 1000
43 Axial Lead Fuse Tape and Reel 1250
53 Axial Lead Fuse Tape and Reel with Four Color Code 1250
Packaging
Part Numbering System
201 xxxx 0 xx 1 P
Current Rating Code
Series
Refer to Amp Code column of
Electrical Characteristics Table
Packaging Code
Refer to below Packaging
Filler
Filler
Lead-free
Recommended Accessories
Accessory
Type Series Description
Max
Application
Voltage
Max
Application
Amperage
Holder
345_ISF Panel Mount Shock-Safe Fuseholder
250
10
345 Shock-Safe Fuseholder with PC Mount, Solder Mount and Panel Mount options 20
830 PC Mount Shock-Safe Miniature Fuseholder 16
Block
520 Metric OMNI-BLOK® Fuse Block 10
646 PC Mount Miniature Fuse Block 6.3
658 Surface Mount Miniature Fuse Block 10
Clip
520_W PC Mount Miniature Fuse Clip 6.3
111 PC Board Mount Fuse Clip 10
445 PC Board Mount Fuse Clip 10
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.
