30304000421 Littelfuse / Wickmann Brand, 30304000421 Datasheet - Page 2
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30304000421
Manufacturer Part Number
30304000421
Description
FUSE FAST 400MA 125V RADIAL TR3
Manufacturer
Littelfuse / Wickmann Brand
Series
TR3® 303r
Datasheet
1.30301250421.pdf
(3 pages)
Specifications of 30304000421
Fuse Type
Fast Acting
Voltage - Rated
125VAC, 63VDC
Current
400mA
Package / Case
Radial
Size / Dimension
0.236" Dia x 0.315" L (6.00mm x 8.00mm)
Mounting Type
Through Hole
Operating Temperature
-25°C ~ 70°C
Melting I²t
0.025
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Color
-
Other names
3030400042
3030400042
3030400042
303 Series
Temperature Rerating Curve
Soldering Parameters - Wave Soldering
300
280
260
2 0
220
200
180
160
1 0
120
100
80
60
20
0
ime (Seconds)
0
140
120
100
80
60
40
20
0
-40
-20
Preheat ime
AMBIENT TEMPERATURE (°C)
0
23°C
Introduction to Circuit Protection
Introduction to Circuit Protection
20
Dwell ime
40
Cooling ime
TR3
60
®
> Fast-Acting > 303 Series
Radial Lead Fuses
80
Revised: January 7, 2009
136
Recommended Process Parameters:
Recommended Hand-Solder Parameters:
Note: These devices are not recommended for IR or
Convection Reflow process.
Preheat:
(Depends on Flux Activation Temperature)
Solder Pot Temperature:
Solder Dwell Time:
Transientology
Average Time Current Curves
Solder Iron Temperature: 350° C +/- 5°C
Heating Time: 5 seconds max.
Temperature Minimum:
Temperature Maximum:
Preheat Time:
Wave Parameter
1
1.
Contact Littelfuse for individual I-t curves
Please refer to www.littelfuse.com/series/303.html for current information.
2
TR3 / No. 303
I I I I I
3
Fault
Fault
Fault
Fault
Fault
Specifications are subject to change without notice.
(Typical Industry Recommendation)
100
150
60-180 seconds
260
2-5 seconds
/ I / I / I / I / I
Lead-Free Recommendation
4
Rated
Rated
Rated
Rated
Rated
°
°
°
C
C
C Maximum
I-t Characteristics
(Min-Max Limit)
303
303
303
303
UL 248-14
est value
6
7 8 9 0
© 2009 Littelfuse, Inc.
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