FN2991 — TRANSISTOR

✓ Government record, cited

— · SFP TRANSCEIVER

PRODUCT OVERVIEW

FN2991: TRANSISTOR.

The TRANSISTOR is a the manufacturer industrial component. Key specifications include overall_length: 0.170 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 0.500 INCHES MINIMUM IN, overall_diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN, features_provided: HERMETICALLY SEALED CASE, precious_material: GOLD. This part is cataloged in the U.S.

Government catalog under NSN 5961-01-020-1668, 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

FN2991

NSN: 5961-01-020-1668
FSC: 5961 — Semiconductor Devices and Associated Hardware
CAGE: 17856 — SILICONIX INCORPORATED DIV SILICONIX (USA)

SPECIFICATIONS

overall_length	0.170 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
mounting_method	TERMINAL
terminal_length	0.500 INCHES MINIMUM IN
overall_diameter	0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
features_provided	HERMETICALLY SEALED CASE
precious_material	GOLD
internal_configuration	FIELD EFFECT
semiconductor_material	SILICON
terminal_type_and_quantity	3 UNINSULATED WIRE LEAD
precious_material_and_location	TERMINALS GOLD
power_rating_per_characteristic	1.8 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
current_rating_per_characteristic	10.00 MILLIAMPERES MAXIMUM GATE CURRENT
NSN	5961-01-020-1668

COMPONENT DIAGRAM

KEY FEATURES

•

VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 50.0 MAXIMUM DRAIN TO GATE VOLTAGE

•

OVERALL DIAMETER: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN

•

PRECIOUS MATERIAL: GOLD

•

TERMINAL LENGTH: 0.500 INCHES MINIMUM IN

•

MOUNTING METHOD: TERMINAL

•

SEMICONDUCTOR MATERIAL: SILICON

•

INTERNAL CONFIGURATION: FIELD EFFECT

TECHNICAL CHARACTERISTICS

VOLTAGE RATING IN VOLTS PER CHARACTERISTIC	50.0 MAXIMUM DRAIN TO GATE VOLTAGE
OVERALL DIAMETER	0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
PRECIOUS MATERIAL	GOLD
TERMINAL LENGTH	0.500 INCHES MINIMUM IN
MOUNTING METHOD	TERMINAL
SEMICONDUCTOR MATERIAL	SILICON
OVERALL LENGTH	0.170 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
INTERNAL CONFIGURATION	FIELD EFFECT
FEATURES PROVIDED	HERMETICALLY SEALED CASE
CURRENT RATING PER CHARACTERISTIC	10.00 MILLIAMPERES MAXIMUM GATE CURRENT

SUBSTITUTES & CROSS-REFERENCES 2

U2641Reference document

Same NSN cross-reference

Reference document — Secondary reference

F2657Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 FN2991?

FN2991 is a TRANSISTOR.

What parts can replace FN2991?

There are 2 known substitutes for FN2991: U2641, F2657. Substitute compatibility should be verified for your specific system.

What is the NSN for FN2991?

FN2991 is cataloged in the U.S. Government catalog under NSN 5961-01-020-1668. This indicates validated use in U.S. government and defense supply chains.

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