Littelfuse 372 User Manual
Radial Lead Fuses
TR5® > Time-Lag > 372 Series
372 Series, TR5®, Time-Lag Fuse
Description
The 372 Series are TR5®, time-Lag type, 250V rated fuses,
that are designed in accordance to IEC 60127-3.
Features
Agency Approvals
Agency Agency File Number Ampere Range
5007679-1170-0003/82447 50mA - 4A
5007679-1170-0004/82452 5A - 6.3A
JET1896-31007-2002 1A - 5A
10102 53 50mA - 6.3A
E67006 40mA - 6.3A
SU05024-7010
SU05024-7011
SU05024-7006
SU05024-7007
SU05024-7008
SU05024-7009
SU05024-7012
CQC07012021162 5A - 6.3A
50mA - 100mA
125mA - 800mA
1A - 2.5A
3.15A
4A
5A
6.3A
• Lead-free
• ReducedPCBspace
requirements
• Directsolderableor
plug-in versions
• Shocksafecasing
• Vibrationresistant
• Halogenfree
• Availablefrom40mA
to 6.3A
• Internationallyapproved
• Lowinternalresistance
Applications
• BatteryChargers
• Consumerelectronics
• Powersupplies
• IndustrialControllers
Electrical Characteristics
% of Ampere
Rating
150% 1 Hour, Min.
210% 2 Minutes, Max.
275% 400 ms, Min. ; 10 Sec., Max.
400% 150 ms, Min. ; 3 Sec., Max.
1000% 20 ms, Min. ; 150 ms, Max.
Opening Time
2007010207240346 40mA - 4A
Additional Information
Datasheet
Resources
Specifications are subject to change without notice.
Samples
© 2013 Littelfuse, Inc.
Revised: 12/19/13
Radial Lead Fuses
08
TR5® > Time-Lag > 372 Series
Electrical Characteristics
Power
Dissipation
1.5×I
N
max. (mW)
min. (A
Amp
Code
Rated
Current
Voltage
Rating
0040 40mA 250V
Breaking Capacity
Voltage
Drop
1.0×I
max.
N
(mV)
900 90 0.009
0050 50mA 250V 500 70 0.01
0063 63mA 250V 400 80 0.02
0080 80mA 250V 370 100 0.023
0100 100mA 250V 300 110 0.047
0125 125mA 250V 260 120 0.066
0160 160mA 250V 200 130 0.14
0200 200mA 250V 170 140 0.20
0250 250mA 250V 150 150 0.28
0315 315mA 250V 140 160 0.36
0400 400mA 250V 130 170 0.9
35A/250VAC
50-60 Hz cos ϕ = 1.0
1
0500 500mA 250V 125 180 1.3
0630 630mA 250V 120 200 2.5
0800 800mA 250V 110 220 3.8
110 0 1.00A 250V 110 360 5.5
112 5 1.25A 250V 95 450 9
116 0 1.60A 250V 95 450 14
1200 2.00A 250V 85 600 23
1250 2.50A 250V 80 700 35
1315 3.15A 250V 80 110 0 60
1400 4.00A 250V 40A / 250 VAC 75 1200 95
1500 5.00A 250V
1630 6.30A
1 Per UL, approved breaking capacity is 50 A at 250 V.
* Conducting path min. 0.2 mm
G = Expert Report
Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.
*
250V 58 1250 105
2
50A / 250 VAC
80 1300 94
Melting
Integral
10×I
N
2
Agency Approvals
s)
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 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
X X X X X X
X X X X X X
X X X X X X
X X X X X X
G X X X CQC X
G X X CQC X
140
120
100
80
60
40
PERCENT OF RATING
20
0
-40-20 020406
23°C
AMBIENTTEM PERATURE (°C)
Average Time Current CurvesTemperature Rerating Curve
0.063A
0.080A
0.050A
0.100A
100000
10000
1000
100
0
10
TIME IN SECONDS
0.100
0.010
0.001
0.040A
1
0.100 1 10 1000.02
0.500A
0.800A
0.250A
0.315A
0.400A
1.00A
0.630A
0.125A
0.160A
0.200A
CURRENT IN AMPERES
1.25A
1.60A
2.00A
2.50A
3.15A
4.00A
5.00A
6.30A
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
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