Brochure

© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 03/03/17
Axial Lead & Cartridge Fuses
2AG > Time Lag > 229/230 Series
Average Time Current CurvesTemperature Re-rating Curve
1000
100
10
1
0.1
0.01
0.1 110 100 1000
.250A .375A .500A .750A 1.00A 1.50A 2.0A 2 .5A 3.0A 3.5A 4A 5A 7A
TIME IN SECONDS
CURRENT IN AMPERES
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:
Note:
Rerating depicted in this curve is in addition to the industry practice derating of 25%
for continuous operation.