Littelfuse 235 Series - Manual (Page 3)

© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Axial Lead & Cartridge Fuses
5×20 mm > Fast-Acting > 235 Series
Materials
Body: Glass
Cap: Nickel–plated brass
Leads: Tin–plated Copper
Terminal Strength
MIL-STD-202G, Method 211A.
Test Condition A
Solderability
Reference IEC 60127 Second Edition
2003-01 Annex A
Product Marking
Cap 1: Brand logo, current and voltage
rating
Cap 2: Series and agency approval
markings
Packaging
Available in Bulk (M=1000 pcs/pkg) or on
Tape/Reel (MRET1=1000 pcs/reel)
Product Characteristics
Operating Temperature –55ºC to +125ºC
Thermal Shock
MIL-STD-202G, Method 107G, Test
Condition B: (5 cycles –65 O C +
125 O C)
Vibration MIL-STD-202G, Method 201A
Humidity
MIL-STD-202G, Method 103B, Test
Condition A high RH (95%) and
elevated temperature (40 O C) for 240
hours
Salt Spray
MIL-STD-202G, Method 101D, Test
Condition 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: