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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
5×20mm > Medium Acting > 201P Series
Cartridge and Axial Lead Fuses
Average Time Current Curves
0
.
0
0
1
0
.
0
1
0
.
1
1
1
0
1
0
0
1
,
0
0
0
1
0
,
0
0
0
1
0
0
,
0
0
0
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: