Axial Lead Fuses 325SP Series Lead-Free 3AB, Slo-Blo

Axial Lead Fuses
3AB > Slo-Blo® Fuse > 325SP Series
325SP Series Lead-Free 3AB, Slo-Blo® Fuse
PS
E
RoHS
Description
The 3AB Slo-Blo® 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 axial lead
format and with various
forming dimensions
Agency Approvals
Agency
• RoHS compliant and
Lead-free
Agency File Number
Ampere Range
E10480
12A - 20A
29862
12A - 20A
NBK 030805 - E10480F
12A - 15A
NBK 260106 - JP1021B
20A
SU05001-5011
12A - 15A
SU05001-5012
20A
N/A
12A - 20A
Applications
Used as supplementary protection in appliance or
utilization equipment to provide individual protection for
components or internal circuits.
PS
E
Electrical Characteristics for Series
% of Ampere
Rating
Ampere Rating
Opening Time
100%
12 – 20A
4 hours, Minimum
135%
12 – 20A
1 hour, Maximum
200%
12 – 20A
5 sec., Min., 60 sec., Max.
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Application
testing istostrongly
Specifications
are subject
change recommended.
without notice.
Revised: 04/22/15
Axial Lead Fuses
3AB > Slo-Blo® Fuse > 325SP Series
Electrical Characteristic Specifications by Item
Agency Approvals
Amp Code
Ampere
Rating
(A)
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal Melting
I2t (A2 sec)
PS
E
012.
015.
020.
12
15
20
250
250
250
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0.0067
0.0050
0.0034
129
245
575
x
x
x
x
x
x
x
x
x
x
x
x
Average Time Current Curves
12.0A
15.0A
20.0A
Temperature Rerating Curve
x
x
x
1000
100
TIME IN SECONDS
10
1
0.1
0.01
0.01
0.1
1
10
100
1000
CURRENT IN AMPERES
Note:
1. Rerating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
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: 04/22/15
Axial Lead Fuses
3AB > Slo-Blo® Fuse > 325SP Series
Product Characteristics
Body: Ceramic
Cap: Nickel–plated brass
Leads: Tin–plated Copper
MIL-STD-202, Method 211,
Test Condition A
Materials
Terminal Strength
–55ºC to +125ºC
MIL-STD-202, Method 107, Test
Condition B:(5 cycles - 65ºC to
125ºC)
MIL-STD-202, Method 201
MIL-STD-202, Method 103, Test
Condition A: High RH (95%) and
Elevated temperature(40ºC) for 240
hours
MIL-STD-202, Method 101, Test
Condition B
Operating Temperature
Thermal Shock
Vibration:
Solderability
MIL-STD-202 Method 208
Product Marking
Cap1:
Brand logo, current and voltage
ratings
Cap2:
Series and agency approval
marks
Humidity
Salt Spray
Part Numbering System
Dimensions
Measurements displayed in millimeters (inches)
0325 xxxx M X SP P
325 000SP Series
(axial leaded)
Series
Amp Code
6.36±0.1
(.250")
Refer to Amp Code column of
Electrical Characteristics Table
31.74±0.8
(1.25")
Axial Lead Diameter:
0.81±0.05 (.032") for
(<20A)
1.02±0.05 (.040") for
(≥20A)
Quantity Code
M = 1000
Axial Lead Length:
21.0±0.5 (0.83") TYP.
Packaging Code
Axial Lead Material:
Tin-coated copper
Single Cap Pigtail
X = Filler
Lead-free
Packaging
Packaging Option
325SP Series
Bulk
Bulk
Packaging Specification
Quantity
Quantity &
Packaging Code
Taping Width
N/A
N/A
1000
1000
MXSPP
MXF48SPP
N/A
N/A
© 2015 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/22/15