Axial Lead & Cartridge Fuses
3AB > Fast Acting > 314/324 Series
314/324 Series
Lead-free 3AB, Fast-acting Fuse
PS
E
Description
The 3AB Fast-Acting Fuse with ceramic body construction
permits higher interrupting ratings and voltage ratings. Ideal
for applications where high current loads are expected.
Features
Standard 248-14
and axial lead format
and with various
forming dimensions
Ampere Range
Lead-free
Agency Approvals
Agency
Agency File Number
Applications
Used as supplementary protection in appliance or
utilization equipment to provide individual protection for
components or internal circuits.
Electrical Characteristics for Series
% of Ampere
Rating
100%
135%
200%
Ampere Rating
125mA – 30A
125mA – 30A
125mA – 12A
15A – 30A
Opening Time
4 hours, Minimum
1 sec.., Maximum
15 sec., Maximum
30 sec., Maximum
E10480
LR 29862
E10480
PS
E
125mA - 15A
125mA - 20A
15A* - 40A
125mA - 30A
125mA - 30 A
125mA - 30A
NBK 030805 - E10480A-F
NBK 260106 - JP1021A/B
SU05001 -
6001/6002/6003/7006
Electrical Characteristic Specification by Item
Amp
Code
.125
.250
.375
.500
.750
001.
002.
003.
004.
005.
006.
007
.
008.
010.
012.
015.
015.*
020.
020.*
025.
025.**
030.
040.
Ampere
Rating
(A)
0.125
0.25
0.375
0.5
0.75
1
2
3
4
5
6
7
8
10
12
15
15
20
20
25
25
30
40
Voltage
Rating
(V)
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
250
280
250
280
250
280
250
250
Interrupting
Rating
Nominal
Cold
Resistance
(Ohms)
6.20
1.95
0.820
0.500
0.250
0.189
0.0700
0.0432
0.0470
0.0300
0.0240
0.0187
0.0153
0.0105
0.00760
0.00505
0.00505
0.00355
0.00355
0.00235
0.00235
0.00182
0.0014
Nominal
Melting
I
2
t (A
2
sec)
0.00149
0.0140
0.050
0.115
0.466
0.690
11.0
14.6
10.4
26.0
45.0
71.0
105
206
570
292
292
631
631
1450
1450
2490
22925
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
Agency Approvals
PS
E
35A@250Vac
10KA@125Vac
10KA@125Vdc
100A@250Vac
10KA@125Vac
10KA@125Vdc
750A@250Vac
10KA@125Vac
10KA@125Vdc
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
1000A@250Vac
200A@300Vac
10KA@125Vac
10KA@125Vdc
100A@250Vac
1000@75Vdc
400@125Vac
400A@125Vdc
1000A@250Vac
400A@150Vdc
* 350A@280Vac interrupting rating available for 15A and 20A. ** 50A@280Vac for 25A. Add suffix ’280’. Example: 0324020.MX280P
.
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/314.html
or /324.html for current information.
321
Revised: July 15, 2009
314/324 Series
314/324 Series
Introduction to & Cartridge Fuses
Axial Lead Circuit Protection
3AB > Fast Acting > Transientology
314/324 Series
Temperature Rerating Curve
Average Time Current Curves
1/8A
1/4A
3/8A
1/2A
3/4A
1A
1
1000
100
TIME IN SECONDS
10
1
0.1
0.01
0.1
2A
3A
4A
5A
6A
7A
8A
10A
12A
15A
20A
25A
30A
40A
10
100
CURRENT IN AMPERES
1000
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
Note: These devices are not recommended for IR or
Convection Reflow process.
314/324 Series
322
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/314.html
or /324.html for current information.
Axial Lead & Cartridge Fuses
3AB > Fast Acting > 314/324 Series
Product Characteristics
Materials
Body: Ceramic
Cap: Nickel–plated brass
Leads: Tin–plated Copper
MIL-STD-202G, Method 211A, Test
Condition A
Reference IEC 60127 Second Edition
2003-01 Annex A
Cap1:
Product Marking
Cap2:
Brand logo, current and voltage
ratings
Series and agency approval
marks
Operating
Temperature
Thermal Shock
Vibration
–55ºC to +125ºC
MIL
-STD-202G, Method 107G, Test
Condition B: (5 cycles -65°C to +125°C)
MIL
-STD-202G, Method 201 A
MIL
-STD-202G, Method 103B, Test
Humidity
temperature (40°C) for 240 hours
Terminal Strength
Solderability
Salt Spray
MIL STD-202G, Method 101D, Test
-
Condition B
Dimensions
Part Numbering System
314
000P
Series
6.985 (.275")
6.35 (.25")
31.75
(1.25")
324
000P
Series
0.813 (.032") (
1/ 8
- 15A)
1.016 (.040") (20 - 30A)
0314 xxxx M X P
Series
Amp Code
Refer to Amp Code column of
Electrical Characteristics Table
38.1
(1.50") TYP
.
Axial Lead Material: Tin coated copper.
32.72
(1.288")
Quantity Code
M = 1000
Packaging Code
X = Filler
Lead-free
Packaging Option
314 Series
Bulk
Bulk
Bulk
Bulk
Bulk
Bulk
324 Series
Bulk
Bulk
Bulk
Bulk
Bulk
Bulk
Packaging Specification
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Quantity
5
100
1000
1000
1000
1000
5
100
1000
1000
1000
1000
Quantity &
Packaging Code
VX
MX
MX52L
MXCC
MX52LE
VX
MX
MX280
MX52
MXF24
Reel Size
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
© 2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/314.html
or /324.html for current information.
323
314/324 Series
314/324 Series
Packaging
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