Littelfuse 316 Series - Manual (Page 2)

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Axial Lead & Cartridge Fuses
PICO ® ll > Very Fast Acting > 316 Series
Note:
1. Derating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
Average Time Current Curves
100
10
1
0.1
0.01
0.001
10 100 1000 0.1 1
TIME IN SECONDS
CURRENT IN AMPERES
3.5
A
5.0
A
1.0
A
2.0
A
0.5
A
Temperature Rerating Curve
140
120
100
80
60
40
20
AMBIENT TEMPERATURE
PERCENT
OF RA
TING*
-60°C -40°C -20°C 0°C 20°C 40°C 60°C 80°C 100°C 120°C
-76°F -40°F -4°F 32°F 68°F 104°F 140°F 176°F 212°F 248°F
B
B
Soldering Parameters
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: 10 Seconds, Maximum
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: