Introduction to & Cartridge Fuses
Axial Lead Circuit Protection
Transientology
5×20 mm > Time-Lag (Slo-Blo
®
) > 215SP Series
Temperature Rerating Curve
Average Time Current Curves
10000
1000
100
10
1
0.1
0.01
0.001
Time (seconds)
0.01
0.1
1
215001.
2151.25
21501.6
215002.
21502.5
2153.15
215004.
215005.
21506.3.
215008.
215010.
10
100
Amps
Soldering Parameters - Wave Soldering
300
280
260
240
220
200
180
160
140
120
100
80
60
40
20
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
10
20
30
40
50
60
70
80
90
0
0
Temperature
(°C) - Measured on bottom side of board
Recommended Process Parameters:
Wave Parameter
Preheat:
(Depends on Flux Activation Temperature)
(Typical Industry Recommendation)
Lead-Free Recommendation
Temperature Minimum:
Temperature Maximum:
Preheat Time:
Solder Pot Temperature:
Solder Dwell Time:
100
°
C
150
°
C
60-180 seconds
260
°
C Maximum
2-5 seconds
Time
(Seconds)
Preheat
Time
Dwell
Time
Cooling
Time
Recommended Hand-Solder Parameters:
Solder Iron Temperature: 350° C +/- 5°C
Note: These devices are not recommended for IR or
Convection Reflow process.
Different values of A and B available, please contact the Littelfuse sales representative in your region:
A
C
B
For the pigtailed fuse, please follow the recommendations
below for axial lead forming and mounting into PCB:
Lead forming:
C
The distance C between cap flat surface and axial lead shall
be greater than 1.0 mm.
PCB mounting:
A
B
According to the standard of IPC-A-610, the distance
between PCB and fuse cap is recommended to be a
minimum of 1.5 mm.
215SP Series
© 2012 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/215SP.html for current information.
LITTELFUSE [ LITTELFUSE ]
