TDR3770 — RELAY,THERMAL

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

TDR3770: RELAY,THERMAL.

The RELAY,THERMAL is a the manufacturer industrial component. Key specifications include overall_width: 1.375 INCHES NOMINAL IN, overall_height: 1.000 INCHES NOMINAL IN, overall_length: 2.375 INCHES NOMINAL IN, contact_arrangement: SINGLE POLE, SINGLE THROW, NORMALLY OPEN, delay_time_in_seconds: 1.25 FIXED OPERATE NOMINAL, heater_power_rating_in_watts: 4.0. This part is cataloged in the U.S.

Government catalog under NSN 5945-00-552-2839, 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

TDR3770

NSN: 5945-00-552-2839
FSC: 5945 — Relays and Solenoids
CAGE: 57741 — NAULT ROBERT DBA TDR ELECTRONICS (USA)

SPECIFICATIONS

overall_width	1.375 INCHES NOMINAL IN
overall_height	1.000 INCHES NOMINAL IN
overall_length	2.375 INCHES NOMINAL IN
contact_arrangement	SINGLE POLE, SINGLE THROW, NORMALLY OPEN
delay_time_in_seconds	1.25 FIXED OPERATE NOMINAL
heater_power_rating_in_watts	4.0
mounting_facility_type_and_quantity	2 UNTHREADED HOLE(S)
contact_maximum_current_rating_in_amps	3.0 AC
NSN	5945-00-552-2839

COMPONENT DIAGRAM

KEY FEATURES

•

MOUNTING FACILITY TYPE AND QUANTITY: 2 UNTHREADED HOLE(S)

•

CONTACT MAXIMUM VOLTAGE RATING IN VOLTS: 115.0 AC

•

DELAY TIME IN SECONDS: 1.25 FIXED OPERATE NOMINAL

•

CONTACT ARRANGEMENT: SINGLE POLE, SINGLE THROW, NORMALLY OPEN

•

HEATER POWER RATING IN WATTS: 4.0

•

HEATER VOLTAGE RATING IN VOLTS: 28.0

TECHNICAL CHARACTERISTICS

MOUNTING FACILITY TYPE AND QUANTITY	2 UNTHREADED HOLE(S)
OVERALL HEIGHT	1.000 INCHES NOMINAL IN
CONTACT MAXIMUM VOLTAGE RATING IN VOLTS	115.0 AC
DELAY TIME IN SECONDS	1.25 FIXED OPERATE NOMINAL
CONTACT ARRANGEMENT	SINGLE POLE, SINGLE THROW, NORMALLY OPEN
HEATER POWER RATING IN WATTS	4.0
HEATER VOLTAGE RATING IN VOLTS	28.0
OVERALL LENGTH	2.375 INCHES NOMINAL IN
OVERALL WIDTH	1.375 INCHES NOMINAL IN
CONTACT MAXIMUM CURRENT RATING IN AMPS	3.0 AC

OTHER ITEMS IN FSC 5945 — Relays and Solenoids

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5945-00-000-0093 5945-00-001-1891 5945-00-001-2622 5945-00-001-2795 5945-00-001-2806 5945-00-001-2938 5945-00-001-3015 5945-00-001-3016

SUBSTITUTES & CROSS-REFERENCES 4

HF01N028-1-25Reference document

Same NSN cross-reference

Reference document — Secondary reference

HF01N0-28V1R25SECReference document

Same NSN cross-reference

Reference document — Secondary reference

2-6-095-1229Reference document

Same NSN cross-reference

Reference document — Secondary reference

GT-5456Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is TDR3770?

TDR3770 is a RELAY,THERMAL.

What parts can replace TDR3770?

There are 4 known substitutes for TDR3770: HF01N028-1-25, HF01N0-28V1R25SEC, 2-6-095-1229 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for TDR3770?

TDR3770 is cataloged in the U.S. Government catalog under NSN 5945-00-552-2839. This indicates validated use in U.S. government and defense supply chains.

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TDR3770 — RELAY,THERMAL

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