PartsTable
Technical Data Sheet
N4903 ✓ 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_width: 1.050 INCHES MAXIMUM IN, overall_height: 0.450 INCHES MAXIMUM IN, overall_length: 1.573 INCHES MAXIMUM IN, mounting_method: UNTHREADED HOLE(S), special_features: JUNCTION PATTERN ARRANGEMENT: PNP, internal_configuration: JUNCTION CONTACT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-408-0519, 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
N4903
NSN: 5961-00-408-0519
FSC: 5961
CAGE: F0244 — CAZENEUVE (FRA)
SPECIFICATIONS
overall_width1.050 INCHES MAXIMUM IN
overall_height0.450 INCHES MAXIMUM IN
overall_length1.573 INCHES MAXIMUM IN
mounting_methodUNTHREADED HOLE(S)
special_featuresJUNCTION PATTERN ARRANGEMENT: PNP
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
mounting_facility_quantity2
terminal_type_and_quantity2 UNINSULATED WIRE LEAD AND 1 CASE
specification/standard_data80131-RELEASE5443 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
power_rating_per_characteristic87.5 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
current_rating_per_characteristic1.00 AMPERES MAXIMUM BASE CURRENT, DC AND 5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
NSN5961-00-408-0519
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 N4903 MFR OEM TRANSISTOR
KEY FEATURES
SPECIFICATION/STANDARD DATA: 80131-RELEASE5443 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
TERMINAL TYPE AND QUANTITY: 2 UNINSULATED WIRE LEAD AND 1 CASE
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASE: COLLECTOR
MOUNTING METHOD: UNTHREADED HOLE(S)
TECHNICAL CHARACTERISTICS (FLIS)
SPECIFICATION/STANDARD DATA80131-RELEASE5443 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
OVERALL LENGTH1.573 INCHES MAXIMUM IN
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: PNP
TERMINAL TYPE AND QUANTITY2 UNINSULATED WIRE LEAD AND 1 CASE
OVERALL WIDTH1.050 INCHES MAXIMUM IN
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASECOLLECTOR
OVERALL HEIGHT0.450 INCHES MAXIMUM IN
MOUNTING METHODUNTHREADED HOLE(S)
MOUNTING FACILITY QUANTITY2
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC80.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
2N4902Interchangeable
interchangeable cross-reference
interchangeable
10001560Interchangeable
interchangeable cross-reference
interchangeable
5319Interchangeable
interchangeable cross-reference
interchangeable
6-15-33Interchangeable
interchangeable cross-reference
interchangeable
K6-15-33Interchangeable
interchangeable cross-reference
interchangeable
28461-32011Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N4903?
N4903 is a TRANSISTOR.
What parts can replace N4903?
There are 26 known substitutes for N4903: 2N4902, 10001560, 5319 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N4903?
N4903 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-408-0519. This indicates validated use in U.S. government and defense supply chains.
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