© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/17
Axial Lead & Cartridge Fuses
5×20 mm > Slo-Blo® Fuse > 239 Series
Agency Approvals
Features
Applications
Agency Agency File Number Ampere Range
PS
E
Cartridge:
NBK030609-JP1021A
NBK190609-JP1021A
NBK030609-JP1021B
Leaded:
NBK030609-JP1021C
NBK190609-JP1021B
NBK030609-JP1021D
1A – 3.5A
4A – 5A
7A
1A – 3.5A
4A – 5A
7A
SU05001 – 2004A
SU05001 – 2014A 0.200A – 3.15A
4A – 7A
E10480 0.080A – 7A
29862 0.200A – 3.15A
4A – 7A
N/A 0.080A – 7A
• Designed to UL/CSA/
ANCE 248-1 and 248-14
Standards
• Available in cartridge and
axial lead format
• RoHS compliant and
lead-free
Electrical Characteristics for Series
% of Ampere
Rating
Ampere
Ratings Opening Time
100%
All Ratings
4 hours, Minimum
135% 1 hour, Maximum
200% 2 minutes, Maximum
RoHS
Pb
5×20mm Slo-Blo® glass body cartridge fuse designed to
UL specification.
Used as supplementary protection in appliance or
utilization equipment to provide individual protection for
components or internal circuits.
239 Series, 5×20 mm, Slo-Blo® Fuse PS
E
Description
Application testing is strongly recommended.
Additional Information
Datasheet Samples
Resources Accessories
For recommended fuse accessories for this product series,
see ‘Recommended Accessories’ section.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/17
Axial Lead & Cartridge Fuses
5×20 mm > Slo-Blo® Fuse > 239 Series
Amp Code Amp Rating
(A)
Voltage
Rating
(V)
Interrupting
Rating
Nominal Cold
Resistance
(Ohms)
Nominal
Melting
I2t (A2 sec)
Agency Approvals
PS
E
.080 0.08 250
35A @ 250 VAC
10kA @ 125 VAC
28.1750 0.02500 x x
.100 0.1 250 17.3425 0.05500 x x
.125 0.125 250 11.6000 0.08500 x x
.150 0.15 250 8.1000 0.13000 x x
.200 0.2 250 3.8725 0.16500 x x x x
.250 0.25 250 3.0700 0.34000 x x x x
.300 0.3 250 2.3000 0.61500 x x x x
.400 0.4 250 1.4750 2.02000 x x x x
.500 0.5 250 0.9090 1.98500 x x x x
.600 0.6 250 0.6990 2.41500 x x x x
.700 0.7 250 0.5375 4.12000 x x x x
.750 0.75 250 0.4710 5.42500 x x x x
.800 0.8 250 0.4155 7.56500 x x x x
0 01. 1 250 0.2965 11.29500 x x x x x
1.25 1.25 250
10kA @ 125 VAC
100A @ 250 VAC
0.1980 19.52500 x x x x x
01. 6 1. 6 250 0.1205 30.43000 x x x x x
002. 2 250 0.0943 50.58500 x x x x x
02.5 2.5 250 0.0583 79.70500 x x x x x
003. 3 250 0.04877 129.51000 x x x x x
3.15 3.15 250 0.0414 128.05000 x x x x x
03.2 3.2 250 0.0385 128.05000 x x x
03.5 3.5 250 0.0370 128.05000 x x x
004. 4 125
10kA @ 125 VAC
0.0312 270.703 x x x x x
005. 5 125 0.0199 302.836 x x x x x
007. 7 125 0.0114 305.758 x x x x x
Electrical Characteristic Specification by Item
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/17
Axial Lead & Cartridge Fuses
5×20 mm > Slo-Blo® Fuse > 239 Series
Average Time Current CurvesTemperature Re-rating Curve
CURRENT IN AMPERES
10000
0.200A
0.250A
0.300A
0.400A
0.500A
0.600A
0.700A
0.750A
0.800A
1A
1.25A
1.6A
2A
2.5A
3A
3.15A
4A
5A
7A
1000
100
10
1
0.1
0.01
0.1 110100 1000
0.001
TIME IN SECONDS
Soldering Parameters - Wave Soldering
Dwell Time
0
20
40
60
80
100
120
140
160
180
200
220
240
260
280
300
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
190
200
210
220
230
240
Time (Seconds)
Temperature (°C) - Measured on bottom side of board
Cooling Time
Preheat Time
Wave Parameter Lead-Free Recommendation
Preheat:
(Depends on Flux Activation Temperature) (Typical Industry Recommendation)
Temperature Minimum: 10 0°C
Temperature Maximum: 150°C
Preheat Time: 60-180 seconds
Solder Pot Temperature: 260°C Maximum
Solder Dwell Time: 2-5 seconds
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.
Recommended Process Parameters:
Note:
Rerating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/31/17
Axial Lead & Cartridge Fuses
5×20 mm > Slo-Blo® Fuse > 239 Series
Dimensions
Packaging
Materials
Body: Glass
Cap: Nickel–plated brass
Leads: Tin–plated Copper
Terminal
Strength
MIL-STD-202, Method 211,
Test Condition A
Solderability MIL-STD-202 Method 208
Product Marking Cap 1: Brand logo, current and voltage rating
Cap 2: Series and agency approval markings
Product Characteristics
Operating
Temperature –55ºC to +125ºC
Thermal
Shock
MIL-STD-202, Method 107, Test Condition B: (5
cycles –65ºC to +125ºC)
Vibration MIL-STD-202, Method 201
Humidity
MIL-STD-202, Method 103, Test Condition A.
high RH (95%) and elevated temp (40ºC) for 240
hours
Salt Spray MIL-STD-202, Method 101, Test Condition B
0239 000P
20+0.5
5.1+0.6
5.2+0.1
-0.2
5.1+0.6
0239 000XEP
0.65±0.05*
40±1.0 21.5±1.0 5.5±0.3
All dimensions in mm
Notes:
* Ratings above 6.3A have 0.8±0.05 diameter lead.
Part Numbering System
0239 MX Pxxxx
Lead-free
Packaging Code
Quantity Code
Amp Code
Series
X = Filler
M = 1000
Refer to Amp Code column of
Electrical Characteristics Table
Packaging Option Packaging Specification Quantity Quantity & Packaging Code Taping Width
239 Series
Bulk N/A 1000 MX N/A
Bulk N/A 1000 MXE N/A
Reel and Tape EIA 296-E 1000 MRET1 T1=52mm (2.062”)
Bulk N/A 1000 MXB N/A
Bulk N/A 10 0 HX N/A
Bulk N/A 10 0 HXE N/A
Recommended Accessories
Accessory
Type Series Description
Max
Application
Voltage
Max
Application
Amperage
Holder
345_ISF Panel Mount Shock-Safe Fuseholder
250
10
345 Shock-Safe Fuseholder with PC Mount, Solder Mount and Panel Mount options 20
830 PC Mount Shock-Safe Miniature Fuseholder 16
Block
520 Metric OMNI-BLOK® Fuse Block 10
646 PC Mount Miniature Fuse Block 6.3
658 Surface Mount Miniature Fuse Block 10
Clip
520_W PC Mount Miniature Fuse Clip 6.3
111 PC Board Mount Fuse Clip 10
445 PC Board Mount Fuse Clip 10
Notes:
1. Do not use in applications above rating.
2. Please refer to fuseholder data sheet for specific re-rating information.
3. Please contact factory for applications greater than the max voltage and amperage shown.
