Littelfuse 373 Series User Manual
Radial lead fuses, 373 series, tr5, Fast-acting fuse
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Radial Lead Fuses
TR5
®
> Fast-Acting > 373 Series
373 Series, TR5
®
, Fast-Acting Fuse
Agency Approvals
Agency
Agency File Number
Ampere Range
File number: E 67006
50mA - 6.3A
Certification: 51378
50mA - 6.3A
File number: E67006
8A - 10A
Features
Electrical Characteristics
• Reduced PCB space
requirements
• Direct solderable or
plug-in versions
• Internationally approved
• Low internal resistance
• Shock safe casing
• Vibration resistant
• Halogen free
• Lead-free
• Available from 50mA
to 10A
% of Ampere
Rating
Ampere Rating
Opening Time
200%
50mA - 6.3A
5 Seconds, Max.
8A - 10A
60 Seconds, Max.
Applications
1. Conducting path cross-section minimum ≥ 0.2mm
2
Electrical Characteristics
Amp
Code
Rated
Current
Voltage
Rating
breaking Capacity
Voltage
Drop
1.0×I
N
max. (mV)
power
Dissipation
1.0×I
N
max. (mW)
melting
Integral
10×I
N
max. (A
2
s)
Agency Approvals
®
0050
50mA
250V
50A / 250 VAC
50-60 Hz
cos ϕ = 1.0
1400
70
0.0001
X
X
0063
63mA
250V
1300
85
0.00023
X
X
0080
80mA
250V
1200
100
0.00037
X
X
0100
100mA
250V
1100
110
0.0013
X
X
0125
125mA
250V
1000
125
0.0019
X
X
0160
160mA
250V
950
155
0.004
X
X
0200
200mA
250V
850
170
0.0065
X
X
0250
250mA
250V
750
190
0.014
X
X
0315
315mA
250V
650
205
0.032
X
X
0400
400mA
250V
230
95
0.016
X
X
0500
500mA
250V
220
110
0.025
X
X
0630
630mA
250V
210
135
0.045
X
X
0800
800mA
250V
200
160
0.069
X
X
1100
1.00A
250V
190
190
0.125
X
X
1125
1.25A
250V
180
225
0.2
X
X
1160
1.60A
250V
170
275
0.38
X
X
1200
2.00A
250V
160
320
0.63
X
X
1250
2.50A
250V
150
375
1.2
X
X
1315
3.15A
250V
140
445
1.9
X
X
1400
4.00A
250V
130
520
3.5
X
X
1500
5.00A
250V
120
630
6.2
X
X
1630
6.30A
250V
115
1000
9.1
X
X
1800
8.00A
1
250V
120
1600
30
X
2100
10.00A
1
250V
110
2000
55
X
Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.
• Battery Chargers
• Consumer Electronics
• Power supplies
• Industrial Controllers
Description
The TR5
®
373 Series are fast–acting 250V rated fuses, that
are designed in accordance to UL 248 –14.
Additional Information