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Technical Data Sheet
501B1900 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The RELAY,THERMAL is a the manufacturer industrial component. Key specifications include overall_length: 3.250 INCHES MAXIMUM IN, overall_diameter: 1.250 INCHES MAXIMUM IN, contact_arrangement: SINGLE POLE, SINGLE THROW, NORMALLY OPEN, delay_time_in_seconds: 2.0 FIXED OPERATE MINIMUM AND 4.0 FIXED OPERATE MAXIMUM, terminal_type_and_quantity: 8 PIN, heater_voltage_rating_in_volts: 117.0. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-494-5516, 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
501B1900
NSN: 5945-00-494-5516
FSC: 5945
CAGE: 58880 — MEGGITT (NEW HAMPSHIRE), INC (USA)
SPECIFICATIONS
overall_length3.250 INCHES MAXIMUM IN
overall_diameter1.250 INCHES MAXIMUM IN
contact_arrangementSINGLE POLE, SINGLE THROW, NORMALLY OPEN
delay_time_in_seconds2.0 FIXED OPERATE MINIMUM AND 4.0 FIXED OPERATE MAXIMUM
terminal_type_and_quantity8 PIN
mounting_facility_type_and_quantity1 PLUG-IN
contact_maximum_current_rating_in_amps3.0 AC OR 3.0 DC
NSN5945-00-494-5516
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,THERMAL TITLE COMPONENT PN 501B1900 MFR RELAY,THERMAL
KEY FEATURES
CONTACT MAXIMUM CURRENT RATING IN AMPS: 3.0 AC OR 3.0 DC
TERMINAL TYPE AND QUANTITY: 8 PIN
OVERALL DIAMETER: 1.250 INCHES MAXIMUM IN
CONTACT MAXIMUM VOLTAGE RATING IN VOLTS: 250.0 AC AND 150.0 DC
DELAY TIME IN SECONDS: 2.0 FIXED OPERATE MINIMUM AND 4.0 FIXED OPERATE MAXIMUM
MOUNTING FACILITY TYPE AND QUANTITY: 1 PLUG-IN
CONTACT ARRANGEMENT: SINGLE POLE, SINGLE THROW, NORMALLY OPEN
TECHNICAL CHARACTERISTICS (FLIS)
CONTACT MAXIMUM CURRENT RATING IN AMPS3.0 AC OR 3.0 DC
TERMINAL TYPE AND QUANTITY8 PIN
OVERALL DIAMETER1.250 INCHES MAXIMUM IN
CONTACT MAXIMUM VOLTAGE RATING IN VOLTS250.0 AC AND 150.0 DC
OVERALL LENGTH3.250 INCHES MAXIMUM IN
DELAY TIME IN SECONDS2.0 FIXED OPERATE MINIMUM AND 4.0 FIXED OPERATE MAXIMUM
MOUNTING FACILITY TYPE AND QUANTITY1 PLUG-IN
CONTACT ARRANGEMENTSINGLE POLE, SINGLE THROW, NORMALLY OPEN
HEATER VOLTAGE RATING IN VOLTS117.0
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
400013Interchangeable
interchangeable cross-reference
interchangeable
179241Interchangeable
interchangeable cross-reference
interchangeable
AS179241Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 501B1900?
501B1900 is a RELAY,THERMAL.
What parts can replace 501B1900?
There are 3 known substitutes for 501B1900: 400013, 179241, AS179241. Substitute compatibility should be verified for your specific system.
What is the NSN for 501B1900?
501B1900 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-494-5516. This indicates validated use in U.S. government and defense supply chains.
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