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JAN2N78A ✓ 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: 0.320 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 1.500 INCHES MINIMUM IN, overall_diameter: 0.530 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: NPN, features_provided: HERMETICALLY SEALED CASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-892-3459, 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
JAN2N78A
NSN: 5961-00-892-3459
FSC: 5961
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
overall_length0.320 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length1.500 INCHES MINIMUM IN
overall_diameter0.530 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialGERMANIUM
terminal_circle_diameter0.192 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
power_rating_per_characteristic65.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
current_rating_per_characteristic20.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
NSN5961-00-892-3459
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 JAN2N78A MFR OEM TRANSISTOR
KEY FEATURES
•
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD
•
MOUNTING METHOD: TERMINAL
•
TERMINAL CIRCLE DIAMETER: 0.192 INCHES NOMINAL IN
•
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
•
TERMINAL LENGTH: 1.500 INCHES MINIMUM IN
•
INTERNAL CONFIGURATION: JUNCTION CONTACT
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: NPN
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD
MOUNTING METHODTERMINAL
OVERALL LENGTH0.320 INCHES MAXIMUM IN
TERMINAL CIRCLE DIAMETER0.192 INCHES NOMINAL IN
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
TERMINAL LENGTH1.500 INCHES MINIMUM IN
INTERNAL CONFIGURATIONJUNCTION CONTACT
POWER RATING PER CHARACTERISTIC65.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
CURRENT RATING PER CHARACTERISTIC20.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
2N78Interchangeable
interchangeable cross-reference
interchangeable
MILT19500Interchangeable
interchangeable cross-reference
interchangeable
386-1050P1Interchangeable
interchangeable cross-reference
interchangeable
2N78AInterchangeable
interchangeable cross-reference
interchangeable
MIL-S-19500/90Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is JAN2N78A?
JAN2N78A is a TRANSISTOR.
What parts can replace JAN2N78A?
There are 5 known substitutes for JAN2N78A: 2N78, MILT19500, 386-1050P1 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for JAN2N78A?
JAN2N78A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-892-3459. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026