Page 1
Axial Lead & Cartridge Fuses
3AG > Time Lag > 313/315 Series
313/315 Series Lead-Free 3AG, Slo-Blo® Fuse
PS
E
Description
The 3AG Slo-Blo® fuse solves a broad range of application
requirements while offering reliable performance and costeffective circuit protection.
The fuse catalog number with the suffix “ID” instantly
identifies itself upon opening by showing a discoloration
of its glass body. Guesswork and time consuming circuit
testing are eliminated. This unique design offers the same
quality performance characteristics as the standard 3AG
®
Slo-Blo
Fuse design.
Agency Approvals
Agency Agency File Number Ampere Range
E10480 10mA - 10A**
LR 29862 10mA - 10A**/15A**
E10480 10A - 30A
PS
E
NBK 040205-
E10480B/D/F/G/H
SU05001-
5007/5008/5009/6004
1A - 10A**/ 15A**
2.25A - 8A
10mA - 10A**/15A**
Additional Information
Datasheet
313 Series
Resources
313 Series
Samples
313 Series
Features
• InaccordancewithUL
Standard 248-14
• RoHScompliantand
Lead-free
• Availableincartridge
and axial lead format
and with various forming
dimensions
Applications
Used as supplementary protection in appliance or
utilization equipment to provide individual protection for
components or internal circuits.
Electrical Characteristics by Series
% of Ampere
Rating
100%
135%
200%
Ampere Rating Opening Time
10mA – 30A 4 hours, Minimum
10mA – 30A 1 hour, Maximum
10mA – 15A 5 sec., Min.,
30 sec., Max
20A – 30A 5 sec., Min.,
60 sec Max
Datasheet
315 Series
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
Resources
315 Series
Samples
315 Series
Page 2
Axial Lead & Cartridge Fuses
PS
E
3AG > Time Lag > 313/315 Series
Electrical Characteristic Specifications by Item
Agency Approvals
Amp
Code
Ampere
Rating
(A)
Voltage
Rating
(V)
.010 0.01 250
Interrupting
Rating
Nominal
Cold
Resistance
(Ohms)
Nominal
Melting
2
I
t (A2 sec)
4300.0000 0.000121
x x x
.031 0.031 250 430.0000 0.00303 x x x
.040 0.04 250 300.0000 0.00630 x x x
.062 0.062 250 120.0000 0.0210 x x x
.10 0 0.1 250 43.0000 0.0850 x x x
.125 0.125 250 30.0000 0.152 x x x
.150 0.15 250 20.0000 0.270 x x x
.175 0.175 250 8.6700 0.177 x x x
.187 0.187 250 8 .0100 0.230 x x x
.200 0.2 250 6.5900 0.270 x x x
.250 0.25 250 4.2700 0.385 x x x
35A@250Vac
10KA@125Vac
.300 0.3 250 3.1350 0.730 x x x
.375 0.375 250 2.0950 1.23 x x x
.400 0.4 250 1.8750 1.35 x x x
.500* 0.5 250 1.2600 2.55 x x x
.600 0.6 250 0.9120 4.00 x x x
.700 0.7 250 0.7000 5.90 x x x
.750 0.75 250 0.6215 7. 16 x x x
.800 0.8 250 0.5540 8.00 x x x
0 01. * 1 250 0.3750 14.0 x x x x
01. 2 1. 2 250
0.2780 21.5 x x x x
1.25 1.25 250 0.2600 24.0 x x x x
01.5* 1. 5 250 0.1910 38.0 x x x x
01. 6 1. 6 250 0.1710 49.6 x x x x
01. 8 1. 8 250 0.1410 58.0 x x x x
002.* 2 250 0.1169 77.0 x x x x
2.25 2.25 250 0.0968 121 x x x x x
100A@250Vac
10KA@125Vac
02.5 2.5 250 0.0811 130 x x x x x
02.8 2.8 250 0.0675 170 x x x x x
003.* 3 250 0.0593 200 x x x x x
03.2 3.2 250 0.0529 209 x x x x x
004.* 4 250
0.0311 76.1 x x x x x
005.* 5 250 0.0214 140 x x x x x
6.25* 6.25 250 0.0154 242 x x x x x
06.3 6.3 250 0.0154 242 x x x x x
200@250Vac
10KA@125Vac
007.* 7 250 0.0128 347 x x x x x
008.* 8 250 0 .0111 445 x x x x x
010.** 10 250
0.0083 760 x x x x
010. * 10 32 0.0083 760 x
012. 12 32 0.0065 120 0 x
015.** 15 125 0.0050 1870 x x x x
015. 15 32 0.0050 1870 x
300A@32Vac
020. 20 32 0.0022 9560 x
025. 25 32 0.0017 16500
x
030. 30 32 0.0012 26900 x
* For 313series, these ratings available with an indicating option. Add the “ID” designation to the series number. i.e. 313.500ID.
** These 2 ratings are designed for special voltage requirement. For 10A, it is available as 250Vac rated and the part number is 0313010.
MX250P; for 15A, it is available as 125Vac rated and the part number is 0315015.MX125P.
Specifications are subject to change without notice.
© 2013 Littelfuse, Inc.
Revised: 12/19/13
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Axial Lead & Cartridge Fuses
1000
100
10
1
0.1
0.01
1/16A
0.05 0.1 110 100 1000
1/10A
15/100A
.175A
1/4A
3/8A
1/2A
3/4A1A1 1/2A2A3A4A5A7A8A
10A
12A
15A
20A
30A
25A
TIME IN SECONDS
CURRENT IN AMPERES
300
240
Temperature (°C) - Measured on bottom side of board
3AG > Time Lag > 313/315 Series
Temperature Rerating Curve
A
B
A - For 313/315 Series, from 10mA to 150mA
B - For all other ampere ratings of 313/315 series
Average Time Current Curves
B
A
Soldering Parameters - Wave Soldering
280
260
240
220
200
180
160
140
120
100
80
60
40
20
0
0
Time (Seconds)
© 2013 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 12/19/13
102030405060708090
Preheat Time
Recommended Process Parameters:
Wave Parameter Lead-Free Recommendation
Preheat:
(Depends on Flux Activation Temperature)
Temperature Minimum:
Temperature Maximum:
(Typical Industry Recommendation)
100
° C
150
° C
Preheat Time: 60-180 seconds
Solder Pot Temperature:
260
° C Maximum
Solder Dwell Time: 2-5 seconds
Recommended Hand-Solder Parameters:
100
110
120
130
140
150
160
170
180
190
200
210
220
230
Solder Iron Temperature: 350° C +/- 5°C
Heating Time: 5 seconds max.
Dwell Time
Cooling Time
Note: These devices are not recommended for IR or
Convection Reflow process.
Page 4
Product Characteristics
0313 MX Pxxxx
Axial Lead & Cartridge Fuses
3AG > Time Lag > 313/315 Series
Materials
Cap: Nickel–plated brass
Leads: Tin–plated Copper
Body: Glass
Terminal Strength
Solderability
MIL-STD-202G, Method 211A, Test
Condition A
Reference IEC 60127 Second Edition
2003-01 Annex A
Cap1: Brand logo, current and voltage
Product Marking
ratings
Cap2: Series and agency approval marks
Dimensions
Measurements displayed in millimeters (inches)
313 000P Series
(cartridge)
6.35±0.3
(.25")
31.75±1.12
(1.25")
Axial Lead Diameter:
0.81±0.05 (.032") for
(0.01A - 15A)
1.02±0.06 (.040") for
(20A - 30A)
315 000P Series
(axial leaded)
6.985±0.3
32.39±1.12
(1.275")
Axial Lead Length:
38.1±3.15 (1.50") TYP.
Axial Lead Material:
Tin-coated copper
(.275")
Operating
Temperature
Thermal Shock
–55ºC to +125ºC
MIL-STD-202G, Method 107G, Test
Condition B: (5 cycles -65°C to +125°C)
Vibration MIL-STD-202G, Method 201 A
MIL-STD-202G, Method 103B, Test
Humidity
Condition A: High RH (95%) and Elevated
temperature (40°C) for 240 hours
Salt Spray
MIL- STD-202G, Method 101D, Test
Condition B
Part Numbering System
Series
Amp Code
Refer to Amp Code column of
Electrical Characteristics Table
Quantity Code
M = 1000
Packaging Code
X = Filler
Lead-free
Packaging
Packaging Option Packaging Specification Quantity
313 Series
Bulk N/A 1000 MX N/A
Bulk N/A 100 HX N/A
315 Series
Bulk N/A 1000 MX N/A
Bulk N/A 100 HX N/A
Bulk N/A 1000 MXB N/A
Quantity &
Packaging Code
Taping Width
Specifications are subject to change without notice.
© 2013 Littelfuse, Inc.
Revised: 12/19/13
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