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
requirements
plug-in versions
Agency Approvals
Agency
Agency File Number
Ampere Range
approved
to 6.3A
5007679-1170-0003/82447
5007679-1170-0004/82452
JET1896-31007-2002
709066
E67006
SU05024-7010
SU05024-7011
SU05024-7006
SU05024-7007
SU05024-7008
SU05024-7009
SU05024-7012
CQC07012021162
2007010207240346
50mA - 4A
5A - 6.3A
1A - 5A
50mA - 6.3A
40mA - 6.3A
50mA - 100mA
125mA - 800mA
1A - 2.5A
3.15A
4A
5A
6.3A
5A - 6.3A
40mA - 4A
Applications
Electrical Characteristics
% of Ampere
Rating
150%
210%
275%
400%
1000%
Opening Time
1 Hour,
Min.
2 Minutes,
Max.
400 ms,
Min.
; 10 Sec.,
Max.
150 ms,
Min.
; 3 Sec.,
Max.
20 ms,
Min.
; 150 ms,
Max.
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/372.html for current information.
143
Revised: January 7, 2009
372 Series
372 Series
Radial Lead Fuses
Introduction to Circuit Protection
Transientology
TR5
®
> Time-Lag > 372 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
500
400
370
300
260
200
170
150
140
130
125
120
110
110
95
95
85
80
80
75
80
58
Power
Dissipation
1.5 x I
N
max. (mW)
90
70
80
100
110
120
130
140
150
160
170
180
200
220
360
450
450
600
700
1100
1200
1300
1250
Melting
Integral
10 x I
N
min. (A
2
s)
0.009
0.01
0.02
0.023
0.047
0.066
0.14
0.20
0.28
0.36
0.9
1.3
2.5
3.8
5.5
9
14
23
35
60
95
94
105
Agency Approvals
Breaking Capacity
35A/250VAC
1
50-60 Hz cos
ϕ
= 1.0
40A / 250 VAC
50A / 250 VAC
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
G
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
CQC
CQC
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
Note: 1.00 means the number one with two decimal places. 1,000 means the number one thousand.
Temperature Rerating Curve
140
120
Average Time Current Curves
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
0.040A
0.050A
100000
PERCENT OF RATING
100
80
60
40
20
0
10000
23°C
1000
TIME IN SECONDS
-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
372 Series
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/372.html for current information.
144
Revised: January 7, 2009
Radial Lead Fuses
TR5
®
> Time-Lag > 372 Series
Soldering Parameters - Wave Soldering
300
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
Recommended Process Parameters:
Wave Parameter
Preheat:
(Depends on Flux Activation Temperature)
(Typical Industry Recommendation)
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
Time
(Seconds)
Preheat
Time
Dwell
Time
Cooling
Time
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.
Product Characteristics
Materials
Lead Pull Strength
Solderability
Soldering Heat
Resistance
Base/Cap: Brown Thermoplastic
Polyamide PA 6.6, UL 94 V-0
Round Pins: Copper, Tin-plated
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
Operating Temperature
Climatic Category
-40ºC to +85ºC (consider de-rating)
-40ºC/+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’s acceleration
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/372.html for current information.
145
Revised: January 7, 2009
372 Series
372 Series
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