239 Series Datasheet by Littelfuse Inc.

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© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 07/31/19
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
Additional Information
Datasheet Samples Resources Accessories
For recommended fuse accessories for this product series,
see ‘Recommended Accessories’ section.
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© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 07/31/19
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
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
10 0
10
1
0.1
0.01
0.1 110100 1000
0.001
TIME IN SECONDS
Note:
Rerating depicted in this curve is in addition to the standard derating of 25% for
continuous operation.
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© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 07/31/19
Axial Lead & Cartridge Fuses
5×20 mm > Slo-Blo® Fuse > 239 Series
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: 100°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:
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
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© 2019 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 07/31/19
Axial Lead & Cartridge Fuses
5×20 mm > Slo-Blo® Fuse > 239 Series
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.
Packaging
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 100 HX N/A
Bulk N/A 100 HXE N/A
Dimensions
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
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each
product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at:
www.littelfuse.com/disclaimer-electronics.

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