MIL-PRF-23419/4H
REQUIREMENTS:
Interface and physical dimensions: See figure 1.
Applicable fuseholder: Grayhill type 2-42, ultra miniature test clip (or equivalent). For 7 Ampere (A),
10A, and 15A fuses, use Grayhill pushpost number 29-100 or equivalent.
Case material: Ceramic or glass.
Terminals:
Materials: Caps, 90/10, commercial bronze; leads, copper.
Finish:
Caps, silver or bright alloy plate; leads solder coated.
Strength: 5 pounds along terminal axis.
Current rating: See table I.
Characteristic: See table I.
Voltage rating: See table I.
Current carrying capacity: 100 percent at +25°C; 110 percent at -55°C; 80 percent at +125°C.
The temperature of the case, body, or terminals shall, at no point, rise more than +70°C above the
ambient air temperature. The maximum temperature rise for 10A and 15A fuses shall be
+85°C.
Resistance:
See table I. Cold resistance is measured at 10 percent or less of rated current.
Overload interrupt: Percentage of nominal rating, interrupt time -55°C through +125°C, 200 percent
in 0 second to 5 seconds; 300 percent in 0 second to 0.1 second. Interrupt time for 15A fuses shall
be 10 seconds maximum at 200 percent of rated current and .3 second maximum at 300 percent of
rated current.
Short circuit interrupt: 300 amperes at maximum voltage dc.
Shock: Method I of MIL-PRF-23419.
Thermal shock: Method 107, MIL-STD-202, test condition B.
Extent of qualification: Qualification may be extended to style FM04 fuses to those qualified for style
FM08 fuses. Group C inspection and retention of qualification may be extended from
MIL-PRF-23419/8, provided they are all the same design and construction.
Solderability: Fuses shall be tested in accordance with MIL-PRF-23419. Gold plated leads shall
have the gold removed by single or double dipping into a flowing or nonflowing hot solder of sufficient
volume to assure complete gold removal.
Resistance to soldering heat: Fuses shall be tested in accordance with MIL-PRF-23419.
Marking: Fuses shall be marked with the manufacturer's name or trademark and current rating only.
2
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business