© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/17/18
Radial Lead Fuses
TR5® > Time-Lag Fuse > 372 Series
372 Series, TR5 Fuse, Time Lag
Agency Approvals
Agency Agency File Number Ampere Range
97187
116448 0.050A - 4A
5A - 6.3A
PS
EJET1896-31007-2002 1A - 5A
1410865 0.050A - 6.3A
E67006 0.040A - 6.3A
SU05024-7010
SU05024-7011
SU05024-7006
SU05024-7007
SU05024-7008
SU05024-7009
SU05024-7012
0.050 - 0.100A
0.125 - 0.800A
1A - 2.5A
3.15A
4A
5A
6.3A
CQC07012020855 5A - 6.3A
2007010207240346 0.040A - 4A
Electrical Characteristics
• Halogen free, Lead-free
and RoHS compliant
• Reduced PCB space
requirements
• Direct solderable or
plug-in versions
• Internationally approved
• Low internal resistance
• Shock safe casing
• Vibration resistant
• Available from 0.040A
to 6.3A
% of Ampere
Rating Opening Time
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.
Applications
Pb
RoHS
The 372 Series are TR5® Fuses, Time-Lag type, 250V rated
fuses, that are designed in accordance to IEC 60127-3.
• Battery Chargers
• Consumer electronics
• Power supplies
• Industrial Controllers
Description
Features
PS
E
Application testing is strongly recommended.
Additional Information
Datasheet Samples
Resources
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/17/18
Radial Lead Fuses
TR5® > Time-Lag Fuse > 372 Series
Average Time Current CurvesTemperature Re-rating Curve
0
20
40
60
80
100
120
140
-40-20 020406
08
0
AMBIENTTEMPERATURE (°C)
PERCENT OF RATING
23°C
Electrical Characteristics
Amp
Code Rated
Current Voltage
Rating Breaking
Capacity
Nominal
Cold
Resistance
(Ohms)
Voltage
Drop
1.0×IN
max. (mV)
Power
Dissipation
1.5×IN
max. (mW)
Melting
Integral
10×IN
min. (A2s)
Agency Approvals
0040 40mA 250V
35A@250VAC
10.1650 900 90 0.0090 X
0050 50mA 250V 6.4950 500 70 0.0108 X X X X X
0063 63mA 250V 3.8000 400 80 0.0278 X X X X X
0080 80mA 250V 2.8750 370 100 0.0384 X X X X X
0100 100mA 250V 1.7030 300 110 0.0800 X X X X X
0125 125mA 250V 1.3500 260 120 0.1094 X X X X X
0160 160mA 250V 0.7780 200 130 0.1792 X X X X X
0200 200mA 250V 0.5750 170 140 0.3120 X X X X X
0250 250mA 250V 0.4000 150 150 0.4938 X X X X X
0315 315mA 250V 0.2760 140 160 0.3969 X X X X X
0400 400mA 250V 0.2050 130 170 1.4080 X X X X X
0500 500mA 250V 0.1550 125 180 2.0000 X X X X X
0630 630mA 250V 0.1150 120 200 3.0958 X X X X X
0800 800mA 250V 0.1000 110 220 5.7600 X X X X X
1100 1.00A 250V 0.0790 110 360 7.5000 X X X X X X
1125 1.25A 250V 0.0550 95 450 13.7500 X X X X X X
1160 1.60A 250V 0.0420 95 450 19.9680 X X X X X X
1200 2.00A 250V 0.0300 85 600 30.0000 X X X X X X
1250 2.50A 250V 0.0220 80 700 35.0000 X X X X X X
1315 3.15A 250V 0.0173 80 110 0 77.3955 X X X X X X
1400 4.00A 250V 40A / 250 VAC 0.0129 75 1200 126.4000 X X X X X X
1500 5.00A 250V 50A / 250 VAC 0.0094 80 1300 115.0000 X X X X CQC X
1630 6.30A* 250V 0.0070 58 1250 138.9150 X X X CQC X
1 Per UL, approved breaking capacity is 50 A at 250 V.
* Conducting path min. 0.2 mm2
Notes:
1) 1.00 means the number one with two decimal places. 1,000 means the number one thousand.
2) Resistance is measured at 10% of rated current, 25ºC.
CURRENT IN AMPERES
TIME IN SECONDS
0.001
0.010
0.100
1
10
100
1000
10000
100000
0.100 1 10 1000.02
0.040A
0.050A
0.063A
0.080A
0.100A
0.125A
0.160A
0.200A
0.250A
0.315A
0.400A
0.500A
0.630A
0.800A
1.00A
1.25A
1.60A
2.00A
2.50A
3.15A
4.00A
5.00A
6.30A
© 2018 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/17/18
Radial Lead Fuses
TR5® > Time-Lag Fuse > 372 Series
Materials Base/Cap: Brown Thermoplastic
Polyamide PA 6.6, UL 94 V-0
Round Pins: Copper, Tin-plated
Lead Pull Strength 10 N (IEC 60068-2-21)
Solderability 260ºC, ≤ 3s. (Wave)
350ºC, ≤ 1s. (Soldering Iron)
Soldering Heat
Resistance 260ºC, 10s. (IEC 60068-2-20)
350ºC, 3s. (Soldering Iron)
Operating
Temperature -40ºC to +85ºC (Consider re-rating)
Climatic Category -40ºC/+85ºC/21 days
(IEC 60068-1,-2-1,-2-2,-2-78)
Stock Conditions +10ºC to +60ºC
RH ≤ 75% yearly average, without dew,
maximum value for 30 days-95%
Vibration
Resistance
24 cycles at 15 min. each
(IEC 60068-2-6)
10 - 60 Hz at 0.75 mm amplitude
60 - 2000 Hz at 10G’s acceleration
Product Characteristics
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:
Dimensions
∅ 8.5
0.5 min
max. 8L
∅ 0.6
5.08
Löcher in der Leiterplatte
Holes in the printed circuit board
1 +0.1
Long Leads (L=18.8mm)
Short Leads (L=4.3mm)
Part Numbering System
Packaging
Packaging
Option Packaging
Specification Quantity Quantity &
Packaging
Code
Taping
Width
372 Series
Tape &
Ammopack N/A 1,000 0001 N/A
Short Leads N/A 1,000 0411 N/A
Short Leads N/A 200 0431 N/A
3.3mm
Leads N/A 1,000 0511 N/A
0001372 xxxx
Packaging Code
Amp Code
Series
0001 Tape/Ammopack (1,000 pcs.)
0411 Short Leads - Bulk (1,000 pcs.)
0431 Short Leads - Bulk (200 pcs.)
0511 3.3 mm Leads - Bulk (1000 pcs.)
Refer to Amp Code column of
Electrical Characteristics Table
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and
test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete
Disclaimer Notice at: www.littelfuse.com/disclaimer-electronics.
