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Technical Data Sheet
J4A ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

SWITCH,RADIO FREQUENCY TRANSMISS. Key specifications include base_style: DOUBLE CONTACT BAYONET CANDELABRA, bulb_style: T (TUBULAR), overall_length: 1.500 INCHES MAXIMUM IN, wattage_rating: 0.250 WATTS, bulb_designator: T-4 1/2, filling_gas_type: ARGON. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-00-635-9754, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
J4A
NSN: 6240-00-635-9754
FSC: 6240
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)
SPECIFICATIONS
base_styleDOUBLE CONTACT BAYONET CANDELABRA
bulb_styleT (TUBULAR)
overall_length1.500 INCHES MAXIMUM IN
wattage_rating0.250 WATTS
bulb_designatorT-4 1/2
filling_gas_typeARGON
rated_average_lifeNOT RATED
light_intensity_levelNOT RATED
specification/standard_data08108-J3A MANUFACTURERS STANDARD
emitted_light_characteristicBLUE
resistor_rating_and_location15.000 KILOHMS EXTERNAL
circuit_voltage_rating_in_volts120.000 MINIMUM AND 135.000 MAXIMUM
NSN6240-00-635-9754
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,RADIO FREQUENCY TRANSMISS TITLE COMPONENT PN J4A MFR SWITCH,RADIO FREQUENCY
KEY FEATURES
BASE STYLE: DOUBLE CONTACT BAYONET CANDELABRA
GAS STRIKING VOLTAGE RATING IN VOLTS AND CURRENT TYPE: 85.0 AC MAXIMUM FIRST VOLTAGE
RESISTOR RATING AND LOCATION: 15.000 KILOHMS EXTERNAL
RATED AVERAGE LIFE: NOT RATED
BULB STYLE: T (TUBULAR)
EMITTED LIGHT CHARACTERISTIC: BLUE
FILLING GAS TYPE: ARGON
TECHNICAL CHARACTERISTICS (FLIS)
BASE STYLEDOUBLE CONTACT BAYONET CANDELABRA
GAS STRIKING VOLTAGE RATING IN VOLTS AND CURRENT TYPE85.0 AC MAXIMUM FIRST VOLTAGE
GAS STRIKING VOLTAGE RATING IN VOLTS AND CURRENT TYPE120.0 DC MAXIMUM SECOND VOLTAGE
RESISTOR RATING AND LOCATION15.000 KILOHMS EXTERNAL
RATED AVERAGE LIFENOT RATED
BULB STYLET (TUBULAR)
EMITTED LIGHT CHARACTERISTICBLUE
FILLING GAS TYPEARGON
CIRCUIT VOLTAGE RATING IN VOLTS120.000 MINIMUM AND 135.000 MAXIMUM
LIGHT INTENSITY LEVELNOT RATED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
AR4Interchangeable
interchangeable cross-reference
interchangeable
807063-00Interchangeable
interchangeable cross-reference
interchangeable
AR4XPWInterchangeable
interchangeable cross-reference
interchangeable
G3163-300Interchangeable
interchangeable cross-reference
interchangeable
HA8Interchangeable
interchangeable cross-reference
interchangeable
SF4-5JInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J4A?
J4A is a SWITCH,RADIO FREQUENCY TRANSMISS.
What parts can replace J4A?
There are 20 known substitutes for J4A: AR4, 807063-00, AR4XPW and 17 more. Substitute compatibility should be verified for your specific system.
Is J4A still available?
J4A is currently cancelled.
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