Fuse Datasheet
370 Series
TR5 ® Fuse, Fast Acting
HF RoHS
Pb
PS
E
Description
The 370 Series are sub-miniature TR5® fuses, fast acting type,
250V rated fuses, designed in accordance to IEC 60127-3.
Features & Benefits
■ Reduced PCB space
requirements
■ Available from 0.040A
to 6.3A
■ Direct solderable or
plug-in versions
■ UL Recognized to UL/CSA/
NMX 248-1 and UL/CSA/NMX
248-14
■ Internationally approved
■ Low internal resistance
■ Shock safe casing
■ Vibration resistant
■ Lead-free, Halogen free and
RoHS compliant
Additional Information
■ Conforms to EN/J 60127-1
and EN/J 60127-3
■ Conforms to GB/T9364.1 and
GB/T9364.3
Applications
Resources
Accessories
Samples
■ Battery Chargers
■ Power supplies
■ Consumer Electronics
■ Industrial Controllers
Electrical Characteristics
Agency Approvals
Agency
PS
E
Certificate Number
Ampere Range
% of Ampere Rating
Opening Time
40021074
98941
40005316
40024532
0.050A - 0.080A
0.100A - 5A
6.3A
0.040A
E67006
0.040A - 6.3A
150%
210%
275%
400%
1000%
1 Hour, Min.
30 Minutes, Max.
10 ms, Min. ; 3 Sec., Max.
3 ms, Min. ; 300 ms, Max.
20 ms, Max.
JET1896-31007-2002
1A - 5A
2020970207000050
0.050A - 6.3A
1
© 2021 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 07/28/21
Fuse Datasheet
370 Series
TR5 ® Fuse, Fast Acting
Electrical Characteristics
Amp
Code
Rated
Current
Voltage
Rating
0040
0050
0063
0080
0100
0125
0160
0200
0250
0315
0400
0500
0630
0800
1100
1125
1160
1200
1250
1315
1400
1500
1630
40mA
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
6.30A*
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
Nominal Cold Voltage Drop
Resistance
1.0×IN
(Ohms)2
max. (mV)
Breaking
Capacity3
35A @ 250VAC
40A / 250VAC
50A / 250VAC
63A / 250VAC
6.0000
4.0224
2.6740
2.0000
4.6100
3.2400
2.2520
1.6900
1.3420
0.9300
0.1610
0.1210
0.0920
0.0760
0.0676
0.0518
0.0420
0.0325
0.0246
0.0184
0.0129
0.0105
0.0073
Power
Dissipation
1.5×IN
max. (mW)
Melting
Integral
10×IN
max. (A2s)
100
80
100
120
130
172
165
190
250
250
135
155
200
310
310
360
600
500
660
950
920
1000
1200
0.0002
0.0004
0.0005
0.0014
0.0038
0.0066
0.0140
0.0300
0.0510
0.1000
0.0250
0.0420
0.0760
0.1200
0.2000
0.3100
0.5300
0.9800
1.8000
3.1000
6.7000
12.0000
24.0000
900
320
350
370
600
550
500
465
400
380
120
120
115
120
110
100
100
85
80
90
80
80
70
Agency Approvals
PS
E
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
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.
3) Breaking Capacity may differ based on Agency Approval. See Agency Approval certificate for more details.
Average Time Current Curves
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
Temperature Rerating Curve
140
100000
PERCENT OF RATING
120
100
10000
80
60
23°C
40
1000
20
-40
-20
0
20
40
60
TIME IN SECONDS
0
80
AMBIENT TEMPERATURE (°C)
Note
1. Rerating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
100
10
1
0.100
0.010
0.001
0.02
0.100
1
10
100
CURRENT IN AMPERES
2
© 2021 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 07/28/21
Fuse Datasheet
370 Series
TR5 ® Fuse, Fast Acting
Soldering Parameters - Wave Soldering
Recommended Process Parameters:
Wave Parameter
280
260
Lead-Free Recommendation
Preheat:
240
220
200
180
160
140
120
100
(Depends on Flux Activation Temperature)
(Typical Industry Recommendation)
Temperature Minimum:
Temperature Maximum:
Preheat Time:
Solder Pot Temperature:
Solder Dwell Time:
100°C
150°C
60-180 Seconds
260°C Maximum
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.
80
60
40
240
230
220
210
200
190
180
170
160
150
140
130
120
110
90
100
80
70
60
50
40
30
0
0
20
20
10
Temperature (°C) - Measured on bottom side of board
300
Time (Seconds)
Cooling Time
Preheat Time
Dwell Time
Product Characteristics
Base/Cap: Brown Thermoplastic
Polyamide PA 6.6, UL 94 V-0
Round Pins: Copper, Tin-plated
10 N (IEC 60068-2-21)
260ºC, ≤ 3s. (Wave)
350ºC, ≤ 1s. (Soldering Iron)
260ºC, 10s. (IEC 60068-2-20)
350ºC, 3s. (Soldering Iron)
Materials
Lead Pull Strength
Solderability
Soldering Heat
Resistance
Operating Temperature
Climatic Category
Stock Conditions
Vibration Resistance
-40ºC to +85ºC (consider de-rating)
-40ºC to +85ºC/21 days
(IEC 60068-1,-2-1,-2-2,-2-78)
+10ºC to +60ºC
RH ≤ 75% yearly average, without dew,
maximum value for 30 days-95%
24 cycles at 15 min. each
(IEC 60068-2-6)
10 - 60 Hz at 0.75 mm amplitude
60 - 2000 Hz at 10G acceleration
Part Numbering System
Dimensions (mm)
370 xxxx 0000
∅ 8.5
∅ 0.6
0.5 min
L
max. 8
Series
Amp Code
Long Leads (L=18.8mm)
Short Leads (L=4.3mm)
Refer to Amp Code column of
Electrical Characteristics Table
Packaging Code
0000 Tape/Ammopack (1,000 pcs.)
0410 Short Leads - Bulk (1,000 pcs.)
1 +0.1
5.08
Löcher in der Leiterplatte
Holes in the printed circuit board
Holes in PCB
Packaging
Packaging Option
Packaging Specification
Quantity
Tape & Ammopack
Short Leads
N/A
N/A
370 Series
1,000
1,000
Quantity &
Packaging Code
Taping Width
0000
0410
N/A
N/A
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.
3
© 2021 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: GD. 07/28/21
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