657990 — TRANSISTOR

✓ Government record, cited

— · SFP TRANSCEIVER

PRODUCT OVERVIEW

657990: TRANSISTOR.

The TRANSISTOR is a the manufacturer industrial component. Key specifications include overall_length: 0.190 INCHES NOMINAL IN, overall_diameter: 0.219 INCHES NOMINAL IN, features_provided: HERMETICALLY SEALED CASE, internal_configuration: FIELD EFFECT, semiconductor_material: SILICON, terminal_type_and_quantity: 3 UNINSULATED WIRE LEAD. This part is cataloged in the U.S.

Government catalog under NSN 5961-00-409-3638, 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

657990

NSN: 5961-00-409-3638
FSC: 5961 — Semiconductor Devices and Associated Hardware
CAGE: 36378 — RAYTHEON TECHNICAL SERVICES COMPANY (USA)

SPECIFICATIONS

overall_length	0.190 INCHES NOMINAL IN
overall_diameter	0.219 INCHES NOMINAL IN
features_provided	HERMETICALLY SEALED CASE
internal_configuration	FIELD EFFECT
semiconductor_material	SILICON
terminal_type_and_quantity	3 UNINSULATED WIRE LEAD
electrode_internally-electrically_connected_to_case	DRAIN
NSN	5961-00-409-3638

COMPONENT DIAGRAM

KEY FEATURES

•

OVERALL DIAMETER: 0.219 INCHES NOMINAL IN

•

SEMICONDUCTOR MATERIAL: SILICON

•

INTERNAL CONFIGURATION: FIELD EFFECT

•

FEATURES PROVIDED: HERMETICALLY SEALED CASE

•

TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD

•

ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASE: DRAIN

TECHNICAL CHARACTERISTICS

OVERALL DIAMETER	0.219 INCHES NOMINAL IN
SEMICONDUCTOR MATERIAL	SILICON
OVERALL LENGTH	0.190 INCHES NOMINAL IN
INTERNAL CONFIGURATION	FIELD EFFECT
FEATURES PROVIDED	HERMETICALLY SEALED CASE
TERMINAL TYPE AND QUANTITY	3 UNINSULATED WIRE LEAD
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASE	DRAIN

OTHER ITEMS IN FSC 5961 — Semiconductor Devices and Associated Hardware

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

5961-00-000-0150 5961-00-000-4541 5961-00-000-5400 5961-00-000-7614 5961-00-000-8760 5961-00-001-1352 5961-00-001-2624 5961-00-001-2978

SUBSTITUTES & CROSS-REFERENCES 1

2N4043AReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 657990?

657990 is a TRANSISTOR.

What parts can replace 657990?

There is 1 known substitute for 657990: 2N4043A. Substitute compatibility should be verified for your specific system.

What is the NSN for 657990?

657990 is cataloged in the U.S. Government catalog under NSN 5961-00-409-3638. This indicates validated use in U.S. government and defense supply chains.

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657990 — TRANSISTOR

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