Axial Lead and Cartridge Fuses
Designed to UL/CSA Standards
U
L
5 x 20 mm Time Lag Fuse (Slo-Blo ) Fuse 239 Series
Designed to UL/CSA/ANCE 248 Standard.
Available in Cartridge and Axial Lead Format.
Available in ratings of 0.200 to 7 amperes.
ELECTRICAL CHARACTERISTICS:
% of Ampere Opening
Rating Time
100% 4 hours, Minimum
135% 1 hour, Maximum
200% 5 seconds, Min.; 2 min., Max.
INTERRUPTING RATING:
0.20-1A 10,000 amperes at 125 VAC, 0.7-0.8 power factor
35 amperes at 250 VAC, 0.7-0.8 power factor
1.25A-3.15A 10,000 amperes at 125 VAC, 0.7-0.8 power factor
ENVIRONMENTAL SPECIFICATIONS:
100 amperes at 250 VAC, 0.7-0.8 power factor
Operating temperature: -55C to 125C
4A-7A 10,000 amperes at 125 VAC, 0.7-0.8 power factor
Thermal Shock: MIL-STD-202F Method 107G, Test Condition B: (5
cycles 65C to +125C)
Vibration: MIL-STD-202F Method 201A
Humidity: MIL-STD-202F Method 103B, Test Condition A. high relative
ORDERING INFORMATION:
humidity (95%) and elevated temperature (40C) for 240 hours.
Nominal Nominal
Salt Spray: MIL-STD-202F Method 101D, Test Condition B
2
Catalog Ampere Voltage Resistance Melting I t
2
Number Rating Rating Cold Ohms A Sec.
PHYSICAL SPECIFICATIONS:
239.200 .200 250 3.873 0.166
Material: Body: Glass
239.250 .250 250 3.070 0.341
239.300 .300 250 2.300 0.613 Cap: Nickel Plated Brass
239.400 .400 250 1.475 1.490
Leads: Tin Plated Copper
239.500 .500 250 0.909 1.986
Terminal Strength: MIL-STD-202F Method 211A,
239.600 .600 250 0.699 2.415
Test Condition A
239.700 .700 250 0.538 4.119
Solderability: Reference IEC 60127 Second Edition 2003-01 Annex A
239.750 .750 250 0.471 5.424
Product Marking: Cap 1: current and voltage rating.
239.800 .800 250 0.416 7.566
Cap 2: Agency approval markings.
239 001 1 250 0.297 11.296
Packaging: Available in Bulk (V=5, H=100, M=1000 pcs/pkg) or on
239 1.25 1.25 250 0.298 19.524
Tape/Reel (MRET1=1000 pcs/reel).
239 01.6 1.60 250 0.120 30.430
239 002 2 250 0.094 50.586
239 02.5 2.50 250 0.058 79.701
239 003 3 250 0.0480 129.509
239 3.15 3.15 250 0.0410 128.048
239 004 4 125 0.0310 270.703
239 005 5 125 0.0200 302.836
239 007 7 125 0.0110 305.758
450
www.littelfuse.comAxial Lead and Cartridge Fuses
Designed to UL/CSA Standards
U
L
5 x 20 mm Time Lag Fuse (Slo-Blo ) Fuse 239 Series
Agency Approvals
Agency Approvals Ampere Range
20+0.5
Certificate No. Cartridge
NBK290502-E10480 G 1A 3A 250V 100A
5.2+0.1
0239 000
NBK280602-E10480 C 4A & 5A 125V 10000A
-0.2
NBK290502-E10480 I 7A 125V 500A
Leaded
5.1+0.6 5.1+0.6
NBK290502-E10480 H 1A 3A 250V 100A
NBK280602-E10480 D 4A & 5A 125V 10000A
5.8 MAX
NBK290502-E10480 J 7A 125V 500A
40 22.5 MAX
0239 000XE
Certificate No. SU05001-2004 200mA 3.15A
SU05001-2014 4A 7A
0.65*
All dimensions in mm
Listed File No. E10480
U
L
Guide No. JDYX
Notes:
200mA 7A
File No. 029862 * Ratings above 6.3A
have 0.8 mm dia lead
Cert. Class No. LR1422-01
Average Time Current Curves
11
10000
1000
11
100
10
1
0.1
0.01
0.001
0.01 1 10 100 1000
CURRENT IN AMPERES
451
www.littelfuse.com
TIME IN SECONDS
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
AXIAL LEAD AND
CARTRIDGE FUSES