2N4257 — TRANSISTOR

✓ Government record, cited

— · SFP TRANSCEIVER

PRODUCT OVERVIEW

2N4257: TRANSISTOR.

The TRANSISTOR is a the manufacturer industrial component. Key specifications include material: PLASTIC ENCLOSURE, overall_length: 0.250 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 0.400 INCHES MINIMUM IN, overall_diameter: 0.215 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: PNP. This part is cataloged in the U.S.

Government catalog under NSN 5961-01-014-0663, 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

2N4257

NSN: 5961-01-014-0663
FSC: 5961 — Semiconductor Devices and Associated Hardware
CAGE: 07263 — FAIRCHILD SEMICONDUCTOR CORP (USA)

SPECIFICATIONS

material	PLASTIC ENCLOSURE
overall_length	0.250 INCHES MAXIMUM IN
mounting_method	TERMINAL
terminal_length	0.400 INCHES MINIMUM IN
overall_diameter	0.215 INCHES MAXIMUM IN
special_features	JUNCTION PATTERN ARRANGEMENT: PNP
internal_configuration	JUNCTION CONTACT
semiconductor_material	SILICON
terminal_circle_diameter	0.100 INCHES NOMINAL IN
terminal_type_and_quantity	3 PIN
power_rating_per_characteristic	0.5 WATTS MAXIMUM TOTAL POWER DISSIPATION
voltage_rating_in_volts_per_characteristic	6.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 6.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 4.5 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
NSN	5961-01-014-0663

COMPONENT DIAGRAM

KEY FEATURES

•

VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 6.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 6.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 4.5 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN

•

MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 125.0 CELSIUS JUNCTION DEGC

•

OVERALL DIAMETER: 0.215 INCHES MAXIMUM IN

•

TERMINAL LENGTH: 0.400 INCHES MINIMUM IN

•

MOUNTING METHOD: TERMINAL

•

SEMICONDUCTOR MATERIAL: SILICON

•

INTERNAL CONFIGURATION: JUNCTION CONTACT

TECHNICAL CHARACTERISTICS

VOLTAGE RATING IN VOLTS PER CHARACTERISTIC	6.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 6.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 4.5 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT	125.0 CELSIUS JUNCTION DEGC
OVERALL DIAMETER	0.215 INCHES MAXIMUM IN
TERMINAL LENGTH	0.400 INCHES MINIMUM IN
MOUNTING METHOD	TERMINAL
SEMICONDUCTOR MATERIAL	SILICON
OVERALL LENGTH	0.250 INCHES MAXIMUM IN
INTERNAL CONFIGURATION	JUNCTION CONTACT
SPECIAL FEATURES	JUNCTION PATTERN ARRANGEMENT: PNP
MATERIAL	PLASTIC ENCLOSURE

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 2

TP4257Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

4818-369603Same 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 2N4257?

2N4257 is a TRANSISTOR.

What parts can replace 2N4257?

There are 2 known substitutes for 2N4257: TP4257, 4818-369603. Substitute compatibility should be verified for your specific system.

What is the NSN for 2N4257?

2N4257 is cataloged in the U.S. Government catalog under NSN 5961-01-014-0663. This indicates validated use in U.S. government and defense supply chains.

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2N4257 — TRANSISTOR

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