Datasheet - Littelfuse

Axial Lead & Cartridge Fuses
3AB > Fast-Acting > 314/324 Series
314/324 Series Lead-free 3AB, Fast-Acting Fuse
RoHS
Pb
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
• In accordance with UL
Standard 248-14
• Available in cartridge
and axial lead format
and with various forming
dimensions
Agency Approvals
Agency
PS
E
• RoHS compliant and
Lead-free
Agency File Number
Ampere Range
E10480
0.375A - 15A
29862
0.375A - 20A
E10480
15A* - 40A
NBK030805-E10480A/B
NBK030805-E10480C/D
NBK030805-E10480E/F
NBK260106-JP1021A/B
1-3.5A
4-5A
6-15A
20-30A
SU05001-6003
SU05001-6001
SU05001-6006
SU05001-8002
SU05001-8003
SU05001-6002
3A
4-6A
7-10A
12-15A
20A
25-30A
N/A
0.375A - 30A
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%
250%
Ampere Rating
Opening Time
1/8 - 40
1/8 - 30
1/8 - 12
15 - 30
40
4 hours, Minimum
1 hour, Maximum
15 secs., Maximum
30 secs., Maximum
30 secs., Maximum
Electrical Specification by Item
Ampere
Rating
(A)
Voltage
Rating
(V)
.375
.500
.750
001.
002.
003.
004.
005.
006.
007.
008.
010.
010.*
012.
015.
015.*
0.375
0.5
0.75
1
2
3
4
5
6
7
8
10
10
12
15
15
250
250
250
250
250
250
250
250
250
250
250
250
280
250
250
280
020.
20
250
Amp
Code
020.*
20
280
025.
25
250
025.**
25
280
030.
30
250
040.
40
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
1000 A @ 250 VAC
200 A @ 300 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
Agency Approvals
Nominal
Melting
2
I t (A2 sec)
0.210
0.639
2.061
0.690
5.700
14.6
10.4
26.0
45.0
71.0
105
206
206
570
292
292
631
0.00355
631
0.00235
1450
0.00235
1450
100 A @ 250 VAC
1000A @ 75 VDC
400A @ 125 VAC
400 A @ 125 VDC
0.00182
2490
1000 A @ 250 VAC
400 A @ 150 VDC
0.0014
22925
PS
E
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* [email protected] interrupting rating available for 10A, 15A and 20A. ** [email protected] for 25A. Add suffix ’280’. Example: 0324020.MX280P.
I2t test at 10x rated current
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice. Application testing is strongly recommended.
Revised: 07/31/15
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Axial Lead & Cartridge Fuses
3AB > Fast-Acting > 314/324 Series
2A
3A
4A
5A
6A
7A
8A
10A
12A
15A
20A
25A
30A
40A
Average Time Current Curves
.375A
.500A
.750A
1A
Temperature Re-rating Curve
1000
TIME IN SECONDS
100
Note:
Rerating depicted in this curve is in addition to the standard derating of 25%
for continuous operation.
10
1
0.1
0.01
0.1
1
10
100
1000
CURRENT IN AMPERES
Soldering Parameters - Wave Soldering
Recommended Process Parameters:
280
260
Wave Parameter
240
220
Lead-Free Recommendation
Preheat:
200
(Depends on Flux Activation Temperature)
180
160
140
120
100
80
60
40
(Typical Industry Recommendation)
Temperature Minimum:
100°C
Temperature Maximum:
Preheat Time:
150°C
60-180 seconds
Solder Pot Temperature:
260°C Maximum
Solder Dwell Time:
2-5 seconds
Time (Seconds)
Cooling Time
Preheat Time
Dwell Time
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
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: 07/31/15
Axial Lead & Cartridge Fuses
3AB > Fast-Acting > 314/324 Series
Product Characteristics
Materials
Body:Ceramic
Cap: Nickel–plated Brass
Leads: Tin–plated Copper
Operating
Temperature
–55ºC to +125ºC
Terminal Strength
MIL-STD-202, Method 211, Test
Condition A
Thermal Shock
MIL-STD-202, Method 107, Test Condition
B (5 cycles, -65°C to +125°C)
Solderability
MIL-STD-202 Method 208
Vibration
MIL-STD-202, Method 201
Humidity
Product Marking
Cap1: Brand logo, current and voltage
ratings
Cap2: Series and agency approval
marks
MIL-STD-202, Method 103, Test
Condition A (High RH (95%) and Elevated
temperature (40°C) for 240 hours)
Salt Spray
MIL- STD-202, Method 101, Test
Condition B
Part Numbering System
Dimensions
Measurements displayed in millimeters (inches)
314 000P Series
(cartridge)
0314 xxxx M X P
324 000P Series
(axial leaded)
6.35±0.3
(.25")
Series
6.985±0.3
(.275")
31.75±1.12
(1.25")
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
Amp Code
Refer to Amp Code column of
Electrical Specification Table
Quantity Code
M = 1000
Packaging Code
X = Filler
Lead-free
Packaging
Packaging
Option
Additional Information
Packaging
Specification
Quantity
314 Series
Bulk
Bulk
Bulk
N/A
N/A
N/A
5
100
1000
Bulk
N/A
1000
Bulk
N/A
1000
Bulk
N/A
1000
324 Series
Bulk
Bulk
Bulk
Bulk
N/A
N/A
N/A
N/A
5
100
1000
1000
Bulk
N/A
1000
Bulk
N/A
1000
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 07/31/15
Quantity &
Packaging
Code
Taping
Width
VX
HX
MX
MX52L
(long lead)
MXCC
MX52LE
(long lead)
N/A
N/A
N/A
VX
HX
MX
MX280
MX52
(long lead)
MXF24
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Datasheet
314 Series
Resources
314 Series
Samples
314 Series
Datasheet
324 Series
Resources
324 Series
Samples
324 Series