PT4257B — TRANSISTOR

✓ Government record, cited

— · SFP TRANSCEIVER

PRODUCT OVERVIEW

PT4257B: TRANSISTOR.

The TRANSISTOR is a the manufacturer industrial component. Key specifications include overall_width: 0.980 INCHES MINIMUM IN, overall_height: 0.980 INCHES MINIMUM IN, overall_length: 0.670 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN, mounting_method: THREADED STUD(S), special_features: JUNCTION PATTERN ARRANGEMENT: NPN, internal_configuration: JUNCTION CONTACT. This part is cataloged in the U.S.

Government catalog under NSN 5961-01-412-1082, 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

PT4257B

NSN: 5961-01-412-1082
FSC: 5961 — Semiconductor Devices and Associated Hardware
CAGE: 11982 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)

SPECIFICATIONS

overall_width	0.980 INCHES MINIMUM IN
overall_height	0.980 INCHES MINIMUM IN
overall_length	0.670 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
mounting_method	THREADED STUD(S)
special_features	JUNCTION PATTERN ARRANGEMENT: NPN
internal_configuration	JUNCTION CONTACT
semiconductor_material	SILICON
mounting_facility_quantity	1
terminal_type_and_quantity	4 RIBBON
function_for_which_designed	AMPLIFIER
power_rating_per_characteristic	65.0 WATTS MAXIMUM TOTAL DEVICE DISSIPATION
current_rating_per_characteristic	5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
NSN	5961-01-412-1082

COMPONENT DIAGRAM

KEY FEATURES

•

VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 36.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 18.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 4.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN

•

MOUNTING FACILITY QUANTITY: 1

•

MOUNTING METHOD: THREADED STUD(S)

•

SEMICONDUCTOR MATERIAL: SILICON

•

INTERNAL CONFIGURATION: JUNCTION CONTACT

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.980 INCHES MINIMUM IN
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC	36.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 18.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 4.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
MOUNTING FACILITY QUANTITY	1
MOUNTING METHOD	THREADED STUD(S)
SEMICONDUCTOR MATERIAL	SILICON
OVERALL LENGTH	0.670 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN
INTERNAL CONFIGURATION	JUNCTION CONTACT
OVERALL WIDTH	0.980 INCHES MINIMUM IN
CURRENT RATING PER CHARACTERISTIC	5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
FUNCTION FOR WHICH DESIGNED	AMPLIFIER

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

2870-0216Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

2N6083Reference 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 PT4257B?

PT4257B is a TRANSISTOR.

What parts can replace PT4257B?

There are 2 known substitutes for PT4257B: 2870-0216, 2N6083. Substitute compatibility should be verified for your specific system.

What is the NSN for PT4257B?

PT4257B is cataloged in the U.S. Government catalog under NSN 5961-01-412-1082. This indicates validated use in U.S. government and defense supply chains.

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PT4257B — TRANSISTOR

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