Radial Lead Fuses
TR3® > Fast-Acting > 303 Series
303 Series, TR3®, Fast-Acting Fuse
Description
The 303 Series areTR3®, fast-acting type, 125V rated
fuses designed in accordance to UL 248–14.
Features
•ꢀ ReducedꢀPCBꢀspaceꢀ
requirements
•ꢀ Vibrationꢀresistant
•ꢀ Halogenꢀfree
•ꢀ Lead-free
•ꢀ Directꢀsolderableꢀorꢀ
plug-in versions
•ꢀ Availableꢀfromꢀ50mAꢀtoꢀ
5A
•ꢀ Internationallyꢀapproved
•ꢀ Lowꢀinternalꢀresistance
•ꢀ Shockꢀsafeꢀcasing
Agency Approvals
Agency
Agency File Number
Ampere Range
50mA-5A
E67006
051378
Applications
•ꢀ Batteryꢀchargers
•ꢀ Powerꢀsupplies
50mA-5A
•ꢀ Consumerꢀelectronics
•ꢀ Industrialꢀcontrollers
Electrical Characteristics
Additional Information
% of Ampere
Rating
OpeningTime
200
60 Seconds, Maximum
Datasheet
Resources
Samples
Electrical Characteristics
Voltage
Drop
1.0×IN
ꢀower
Dissipation
1.0×IN
ꢁelting
Integral
10×IN
Approvals
Rated
Amp Code
Voltage
Rating
breaking Capacity
Current
®
max. (mV)
max. (mW)
max. (A2s)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0050
0063
0080
0100
0125
0160
0200
0250
0315
0400
0500
0630
0800
1100
1125
1160
1200
1250
1315
1400
1500
50mA
63mA
80mA
100mA
125mA
160mA
200mA
250mA
315mA
400mA
500mA
630mA
800mA
1.00A
1.25A
1.60A
2.00A
2.50A
3.15A
4.00A
5.00A
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
125V
800
780
730
700
650
600
550
500
450
400
380
160
155
150
145
140
130
125
120
110
40
50
60
70
85
0.00007
0.00013
0.0002
0.0004
0.0022
0.0029
0.0042
0.0082
0.015
0.025
0.042
0.015
0.025
0.039
0.059
0.11
100
110
125
145
160
190
100
125
155
185
225
260
315
380
440
525
50A / 125VAC
60-60 Hz/cos ϕ - 1
50A / 63 VDC
0.17
0.23
0.45
1.0
105
1.5
Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13