Axial Lead & Cartridge Fuses
3AB > Fast-Acting > 314/324 Series
314/324 Series Lead-free 3AB, Fast-Acting Fuse
Description
RoHS
Pb
PS
E
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
• In accordance with UL
Standard 248-14
• Available in cartridge
and axial lead format
and with various forming
dimensions
Agency Approvals
Agency
Agency File Number
Ampere Range
• RoHS compliant and
Lead-free
Applications
E10480
LR 29862
E10480
375mA - 15A
375mA - 20A
10A* - 40A
375mA - 30A
375mA - 30A
375mA - 30A
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%
250%
Ampere Rating
1/8 - 40
1/8 - 30
1/8 - 12
15 - 30
40
Opening Time
4 hours, Minimum
1 hour, Maximum
15 secs., Maximum
30 secs., Maximum
30 secs., Maximum
PS
E
NBK 030805 - E10480A-F
NBK 260106 - JP1021A/B
SU05001 -
6001/6002/6003/7006/8002/8003
Electrical Specification by Item
Amp
Code
.375
.500
.750
001.
002.
003.
004.
005.
006.
007
.
008.
010.
010.*
012.
015.
015.*
020.
020.*
025.
025.**
030.
040.
Ampere
Rating
(A)
0.375
0.5
0.75
1
2
3
4
5
6
7
8
10
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
280
250
250
280
250
280
250
280
250
250
Interrupting
Rating
35 A @ 250 VAC
10 kA @ 125 VAC
10 kA @ 125 VDC
100 A @ 250 VAC
10
kA
@ 125 VAC
10
kA
@ 125 VDC
750 A @ 250 VAC
10
kA
@ 125 VAC
10
kA
@ 125 VDC
Nominal
Cold
Resistance
(Ohms)
0.820
0.500
0.250
0.189
0.0700
0.0432
0.0470
0.0300
0.0240
0.0187
0.0153
0.0105
0.0105
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)
0.050
0.115
0.466
0.690
11.0
14.6
10.4
26.0
45.0
71.0
105
206
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
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
1000 A @ 250 VAC
200 A @ 300 VAC
10
kA
@ 125 VAC
10
kA
@ 125 VDC
100 A @ 250 VAC
1000A @ 75 VDC
400A @ 125 VAC
400 A @ 125 VDC
1000 A @ 250 VAC
400 A @ 150 VDC
x
x
x
x
x
x
* 350A@280VAC interrupting rating available for 10A, 15A and 20A. ** 50A@280VAC for 25A. Add suffix ’280’. Example: 0324020.MX280P
.
I
2
t test at 10x rated current
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/06/15
Axial Lead & Cartridge Fuses
3AB > Fast-Acting > 314/324 Series
Temperature Re-rating Curve
Average Time Current Curves
.375A
.500A
.750A
1A
1000
100
TIME IN SECONDS
10
1
0.1
0.01
0.1
1
2A
3A
4A
5A
6A
7A
8A
10A
12A
15A
20A
25A
30A
40A
10
100
1000
CURRENT IN AMPERES
Soldering Parameters - Wave Soldering
300
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
Temperature (°C) - Measured on bottom side of board
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.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/06/15
Axial Lead & Cartridge Fuses
3AB > Fast-Acting > 314/324 Series
Product Characteristics
Materials
Terminal Strength
Solderability
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:
Brand logo, current and voltage
ratings
Cap2:
Series and agency approval
marks
Operating
Temperature
Thermal Shock
Vibration
Humidity
–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
Condition A (High RH (95%) and Elevated
temperature (40°C) for 240 hours)
MIL STD-202G, Method 101D, Test
-
Condition B
Product Marking
Salt Spray
Dimensions
Measurements displayed in millimeters (inches)
Part Numbering System
314
000P
Series
(cartridge)
6.35±0.3
(.25")
31.75±1.12
(1.25")
324
000P
Series
(axial leaded)
6.985±0.3
(.275")
32.72±1.12
(1.288")
Axial Lead Diameter:
0.81±0.05 (.032") for
(.125A - 15A)
1.02±0.06 (.040") for
(20A - 40A)
Axial Lead Length:
38.1±3.15 (1.50") TYP
52±3(2.0") for Long Lead
Axial Lead Material:
Tin-coated copper
0314 xxxx M X P
Series
Amp Code
Refer to Amp Code column of
Electrical Specification Table
Quantity Code
M = 1000
Packaging Code
X = Filler
Lead-free
Packaging
Quantity &
Packaging
Code
Additional Information
Packaging
Specification
Taping
Width
Packaging
Option
314 Series
Bulk
Bulk
Bulk
Bulk
Bulk
Bulk
324 Series
Bulk
Bulk
Bulk
Bulk
Bulk
Bulk
Quantity
Datasheet
314 Series
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Resources
314 Series
Samples
314 Series
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
5
100
1000
1000
1000
1000
5
100
1000
1000
1000
1000
VX
HX
MX
MX52L
(long lead)
MXCC
MX52LE
(long lead)
VX
HX
MX
MX280
MX52
(long lead)
MXF24
Datasheet
324 Series
Resources
324 Series
Samples
324 Series
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/06/15
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