BF259 — TRANSISTOR

✓ Government record, cited

— · SFP TRANSCEIVER

PRODUCT OVERVIEW

BF259: TRANSISTOR.

The TRANSISTOR is a the manufacturer industrial component. Key specifications include overall_length: 0.250 INCHES MINIMUM IN, mounting_method: TERMINAL, terminal_length: 0.500 INCHES MINIMUM IN, overall_diameter: 0.360 INCHES NOMINAL IN, special_features: JUNCTION PATTERN ARRANGEMENT: NPN, internal_configuration: JUNCTION CONTACT. This part is cataloged in the U.S.

Government catalog under NSN 5961-01-193-6330, 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

BF259

NSN: 5961-01-193-6330
FSC: 5961 — Semiconductor Devices and Associated Hardware
CAGE: 01295 — TEXAS INSTRUMENTS INCORPORATED (USA)

SPECIFICATIONS

overall_length	0.250 INCHES MINIMUM IN
mounting_method	TERMINAL
terminal_length	0.500 INCHES MINIMUM IN
overall_diameter	0.360 INCHES NOMINAL IN
special_features	JUNCTION PATTERN ARRANGEMENT: NPN
internal_configuration	JUNCTION CONTACT
semiconductor_material	SILICON
terminal_circle_diameter	0.200 INCHES NOMINAL IN
terminal_type_and_quantity	3 UNINSULATED WIRE LEAD
power_rating_per_characteristic	5.0 WATTS NOMINAL AVERAGE OFF-STATE POWER DISSIPATION
current_rating_per_characteristic	50.00 MICROAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, EMITTER OPEN
voltage_rating_in_volts_per_characteristic	300.0 NOMINAL COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN
NSN	5961-01-193-6330

COMPONENT DIAGRAM

KEY FEATURES

•

VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 300.0 NOMINAL COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN

•

MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 175.0 CELSIUS JUNCTION DEGC

•

JOINT ELECTRONIC DEVICE ENGINEERING COUNCIL/JEDEC/CASE OUTLINE DESIGNATION: TO-39

•

OVERALL DIAMETER: 0.360 INCHES NOMINAL IN

•

TERMINAL LENGTH: 0.500 INCHES MINIMUM IN

•

MOUNTING METHOD: TERMINAL

•

SEMICONDUCTOR MATERIAL: SILICON

TECHNICAL CHARACTERISTICS

VOLTAGE RATING IN VOLTS PER CHARACTERISTIC	300.0 NOMINAL COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT	175.0 CELSIUS JUNCTION DEGC
JOINT ELECTRONIC DEVICE ENGINEERING COUNCIL/JEDEC/CASE OUTLINE DESIGNATION	TO-39
OVERALL DIAMETER	0.360 INCHES NOMINAL IN
TERMINAL LENGTH	0.500 INCHES MINIMUM IN
MOUNTING METHOD	TERMINAL
SEMICONDUCTOR MATERIAL	SILICON
OVERALL LENGTH	0.250 INCHES MINIMUM IN
INTERNAL CONFIGURATION	JUNCTION CONTACT
CURRENT RATING PER CHARACTERISTIC	50.00 MICROAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, EMITTER OPEN

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

Q62702-F261Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Demilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is BF259?

BF259 is a TRANSISTOR.

What parts can replace BF259?

There is 1 known substitute for BF259: Q62702-F261. Substitute compatibility should be verified for your specific system.

What is the NSN for BF259?

BF259 is cataloged in the U.S. Government catalog under NSN 5961-01-193-6330. This indicates validated use in U.S. government and defense supply chains.

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BF259 — TRANSISTOR

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