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© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Axial Lead & Cartridge Fuses
3AG > Slo-Blo
®
Fuse > 313/315 Series
Average Time Current Curves
1000
100
10
1
0.1
0.01
1/16A
0.05 0.1 110 100 1000
1/10A 15/100A .175A 1/4A 3/8A 1/2A 3/4A 1A 1 1/2A 2A 3A 4A 5A 7A 8A 10A 12A 15A 20A 30A 25A
TIME IN SECONDS
CURRENT IN AMPERES
Temperature Re-rating Curve
A
B
A
B
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:
A - For 313/315 Series, from 10mA to 150mA
B - For all other ampere ratings of 313/315 series
Note:
Rerating depicted in this curve is in addition to the standard derating of
25% for continuous operation.
Packaging
Packaging Option Packaging Specification Quantity
Quantity &
Packaging Code
Taping Width
313 Series
Bulk N/A 1000 MX N/A
Bulk N/A 100 HX N/A
315 Series
Bulk N/A 1000 MX N/A
Bulk N/A 100 HX N/A
Bulk N/A 1000 MXB N/A