STX278 — TRANSISTOR

✓ Government record, cited

— · SFP TRANSCEIVER

PRODUCT OVERVIEW

STX278: TRANSISTOR.

The TRANSISTOR is a the manufacturer industrial component. Key specifications include overall_width: 0.990 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN, overall_height: 0.250 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN, overall_length: 1.409 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN, transfer_ratio: 20.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER, mounting_method: UNTHREADED HOLE(S), special_features: JUNCTION PATTERN ARRANGEMENT: NPN. This part is cataloged in the U.S.

Government catalog under NSN 5961-01-331-2897, 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

STX278

NSN: 5961-01-331-2897
FSC: 5961 — Semiconductor Devices and Associated Hardware
CAGE: 30043 — SOLID STATE DEVICES, INC (USA)

SPECIFICATIONS

overall_width	0.990 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN
overall_height	0.250 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
overall_length	1.409 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN
transfer_ratio	20.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
mounting_method	UNTHREADED HOLE(S)
special_features	JUNCTION PATTERN ARRANGEMENT: NPN
features_provided	HERMETICALLY SEALED CASE AND ELECTROSTATIC SENSITIVE
internal_configuration	JUNCTION CONTACT
semiconductor_material	SILICON
end_item_identification	TACTICAL AIR OPERATIONS CENTRAL AN/TYQ-23(V)1
mounting_facility_quantity	2
terminal_type_and_quantity	2 PIN AND 1 CASE
NSN	5961-01-331-2897

COMPONENT DIAGRAM

KEY FEATURES

•

VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 800.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN

•

MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 150.0 CELSIUS JUNCTION DEGC

•

MOUNTING FACILITY QUANTITY: 2

•

JOINT ELECTRONIC DEVICE ENGINEERING COUNCIL/JEDEC/CASE OUTLINE DESIGNATION: TO-3

•

MOUNTING METHOD: UNTHREADED HOLE(S)

•

TRANSFER RATIO: 20.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER

•

SEMICONDUCTOR MATERIAL: SILICON

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.250 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC	800.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT	150.0 CELSIUS JUNCTION DEGC
MOUNTING FACILITY QUANTITY	2
JOINT ELECTRONIC DEVICE ENGINEERING COUNCIL/JEDEC/CASE OUTLINE DESIGNATION	TO-3
MOUNTING METHOD	UNTHREADED HOLE(S)
TRANSFER RATIO	20.0 MINIMUM STATIC FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
SEMICONDUCTOR MATERIAL	SILICON
OVERALL LENGTH	1.409 INCHES MINIMUM AND 1.573 INCHES MAXIMUM IN
INTERNAL CONFIGURATION	JUNCTION CONTACT

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 3

841278-1Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

ST8086Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

PP8401Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is STX278?

STX278 is a TRANSISTOR.

What parts can replace STX278?

There are 3 known substitutes for STX278: 841278-1, ST8086, PP8401. Substitute compatibility should be verified for your specific system.

What is the NSN for STX278?

STX278 is cataloged in the U.S. Government catalog under NSN 5961-01-331-2897. This indicates validated use in U.S. government and defense supply chains.

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