Radial lead fuses, Transient tolerant fuse > 397 series, Average time current curves – Littelfuse 397 Series User Manual
Page 2: Soldering parameters - wave soldering, Wave parameter lead-free recommendation preheat, Temperature minimum: 100, Ctemperature maximum: 150, C maximum solder dwell time: 2-5 seconds
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Radial Lead Fuses
TE5
®
> Transient Tolerant Fuse > 397 Series
Average Time Current Curves
CURRENT IN AMPERES
TIME IN SECONDS
0.001
0.010
0.100
1
10
100
1000
10000
100000
1
10
100
1000
0.20
0.
350A
0.
500A
0.
800A
1.
00A
1.
25A
1.
50A
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:
Temperature Rerating Curve
0
20
40
60
80
100
120
140
-40
-20
0
20
40
60
80
AMBIENT TEMPERATURE (°C)
PE
RCE
NT
OF
RA
TI
NG
23°C