Radial Lead Fuses
TR5
®
> Fast-Acting > 370 Series
370 Series,
TR5
®
, Fast-Acting Fuse
Description
The 370 Series are TR5
®
,sub-miniature,fast-acting type,
250V rated fuses, designed in accordance to IEC 60127-
3.
Features
requirements
plug-in versions
Agency Approvals
Agency
Agency File Number
Ampere Range
approved
to 6.3A
License number:
5007679-1170-0001/82438
License number:
5007679-1170-0001/97059
5007679-1170-0009/97069
5007679-1170-0002/82443
Certificate number:
710055
File number:
E67006
JET0381-31007-2003
2007010207240347
100mA - 5A
40mA
50mA - 80mA
6.3A
50mA - 6.3A
40mA - 6.3A
1A - 5A
50mA - 5A
Applications
Electrical Characteristics
% of Ampere
Rating
150%
210%
275%
400%
1000%
Opening Time
1 Hour,
Min.
30 Minutes,
Max.
10 ms,
Min.
; 3 Sec.,
Max.
3 ms,
Min.
; 300 ms,
Max.
20 ms,
Max.
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/370.html for current information.
139
Revised: January 7, 2009
370 Series
370 Series
Radial RadialFuses
Lead Lead
Introduction to Circuit Protection
Transientology
TR5
®
> Fast-Acting > 370 Series
Electrical Characteristics
Amp
Code
0040
0050
0063
0080
0100
0125
0160
0200
0250
0315
0400
0500
0630
0800
1100
1125
1160
1200
1250
1315
1400
1500
1630
Rated
Current
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*
Voltage
Rating
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
250V
Voltage
Drop
1.0 x I
N
max. (mV)
900
320
350
370
600
550
500
465
400
380
120
120
115
120
110
100
100
85
80
90
80
80
70
Power
Dissipation
1.5 x I
N
max. (mW)
100
80
100
120
130
172
165
190
250
250
135
155
200
310
310
360
600
500
660
950
920
1000
1200
Melting
Integral
10 x I
N
max. (A
2
s)
0.0002
0.00035
0.0005
0.0014
0.0038
0.0066
0.014
0.03
0.051
0.1
0.025
0.042
0.076
0.12
0.2
0.31
0.53
0.98
1.8
3.1
6.7
12.00
24.00
Agency Approvals
Breaking Capacity
35 A/ 250VAC
1
50-60 Hz cos
ϕ
= 1.0
40 A / 250 VAC
50 A / 250 VAC
G
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
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
1 Per UL, approved breaking capacity is 50 A at 250 V.
* Conducting path min. 0.2 mm
2
G = Expert Report pending
Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.
Temperature Rerating Curve
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
140
100000
120
PERCENT OF RATING
100
80
60
40
20
10000
23°C
1000
TIME IN SECONDS
0
-40
-20
0
20
40
60
80
100
AMBIENT TEMPERATURE (°C)
10
1
0.100
0.010
0.001
0.02
0.100
1
10
100
CURRENT IN AMPERES
370 Series
140
Revised: January 7, 2009
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/370.html for current information.
Radial Lead Fuses
TR5
®
> Fast-Acting > 370 Series
Soldering Parameters - Wave Soldering
300
Recommended Process Parameters:
Wave Parameter
Preheat:
(Depends on Flux Activation Temperature)
(Typical Industry Recommendation)
Temperature
(°C) - Measured on bottom side of board
280
260
240
220
200
180
160
140
120
100
80
60
40
20
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
10
20
30
40
50
60
70
80
90
0
0
Lead-Free 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:
Cooling
Time
Dwell
Time
Time
(Seconds)
Preheat
Time
Solder Iron Temperature: 350° C +/- 5°C
Heating Time: 5 seconds max.
Note: These devices are not recommended for IR or
Convection Reflow process.
Product Characteristics
Materials
Lead Pull Strength
Solderability
Soldering Heat
Resistance
Operating Temperature
Climatic Category
-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
(EN 60068-2-6)
10 - 60 Hz at 0.75 mm amplitude
60 - 2000 Hz at 10G acceleration
10 N (EN 60068-2-21)
260ºC, ≤ 3s. (Wave)
350ºC, ≤ 1s. (Soldering Iron)
260ºC, 10s. (IEC 60068-2-20)
350ºC, 3s. (Soldering Iron)
Vibration Resistance
Stock Conditions
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/370.html for current information.
141
Revised: January 7, 2009
370 Series
370 Series
Base/Cap: Brown Thermoplastic
Polyamide PA 6.6, UL 94 V-0
Round Pins: Copper, Tin-plated
PCB Design
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