PartsTable
Technical Data Sheet
GP1979 ✓ Verified by PartsTable
· SFP TRANSCEIVER
WHAT YOU NEED TO KNOW
SR = Short Range (multimode, 300m) | LR = Long Range (single-mode, 10km) DOM = Digital Optical Monitoring — most enterprise SFPs support it
MATCH ALL THREE: Speed + Wavelength + Brand compatibility
PRODUCT OVERVIEW

The TRANSISTOR is a the manufacturer industrial component. Key specifications include overall_length: 0.375 INCHES NOMINAL IN, mounting_method: UNTHREADED HOLE(S), overall_diameter: 0.875 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: PNP, features_provided: HERMETICALLY SEALED CASE, internal_configuration: JUNCTION CONTACT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-990-5370, 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
GP1979
NSN: 5961-00-990-5370
FSC: 5961
CAGE: 01295 — TEXAS INSTRUMENTS INCORPORATED (USA)
SPECIFICATIONS
overall_length0.375 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
overall_diameter0.875 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: PNP
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialGERMANIUM
mounting_facility_quantity2
terminal_type_and_quantity2 UNINSULATED WIRE LEAD AND 1 CASE
specification/standard_data80131-RELEASE2984 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
current_rating_per_characteristic5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
maximum_operating_temp_per_measurement_point100.0 CELSIUS JUNCTION DEGC
NSN5961-00-990-5370
COMPONENT DIAGRAM
BAIL LATCH 10G SFP+ 850nm · SR (MMF, 300m) DOM: Digital Optical Monitoring TX RX LC DUPLEX 20-PIN EDGE CONNECTOR ~56.5 mm ~13.4mm SFP+ TRANSCEIVER | 10G | 850nm | SR (MMF, 300m) Hot-swappable | LC duplex fiber | DDM/DOM supported TITLE SFP+ XCVR PN GP1979 MFR OEM TRANSISTOR
KEY FEATURES
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 120.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 60.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
MOUNTING FACILITY QUANTITY: 2
FEATURES PROVIDED: HERMETICALLY SEALED CASE
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 100.0 CELSIUS JUNCTION DEGC
TERMINAL TYPE AND QUANTITY: 2 UNINSULATED WIRE LEAD AND 1 CASE
CURRENT RATING PER CHARACTERISTIC: 5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
MOUNTING METHOD: UNTHREADED HOLE(S)
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: PNP
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC120.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 60.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
MOUNTING FACILITY QUANTITY2
FEATURES PROVIDEDHERMETICALLY SEALED CASE
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT100.0 CELSIUS JUNCTION DEGC
TERMINAL TYPE AND QUANTITY2 UNINSULATED WIRE LEAD AND 1 CASE
CURRENT RATING PER CHARACTERISTIC5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
MOUNTING METHODUNTHREADED HOLE(S)
OVERALL LENGTH0.375 INCHES NOMINAL IN
SEMICONDUCTOR MATERIALGERMANIUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
2N1554Interchangeable
interchangeable cross-reference
interchangeable
RELEASE2984Interchangeable
interchangeable cross-reference
interchangeable
2N1544Interchangeable
interchangeable cross-reference
interchangeable
2N1547Interchangeable
interchangeable cross-reference
interchangeable
Q0170Interchangeable
interchangeable cross-reference
interchangeable
2N1546Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GP1979?
GP1979 is a TRANSISTOR.
What parts can replace GP1979?
There are 11 known substitutes for GP1979: 2N1554, RELEASE2984, 2N1544 and 8 more. Substitute compatibility should be verified for your specific system.
Is GP1979 still available?
GP1979 is currently cancelled.
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