PartsTable
Technical Data Sheet
1N3903 ✓ 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 RECTIFIER,SEMICONDUCTOR DEVICE is a the manufacturer industrial component. Key specifications include material: GLASS ENCLOSURE, overall_length: 1.172 INCHES MINIMUM AND 1.453 INCHES MAXIMUM IN, mounting_method: THREADED STUD(S), overall_diameter: 0.669 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN, special_features: STANDARD POLARITY: STUD IS CATHODE; 1/4-28 UNF 3A THREADS A, 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 5961-00-194-9074, 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
1N3903
NSN: 5961-00-194-9074
FSC: 5961
CAGE: 12045 — ELECTRONIC TRANSISTORS CORP (USA)
SPECIFICATIONS
materialGLASS ENCLOSURE
overall_length1.172 INCHES MINIMUM AND 1.453 INCHES MAXIMUM IN
mounting_methodTHREADED STUD(S)
overall_diameter0.669 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
special_featuresSTANDARD POLARITY: STUD IS CATHODE; 1/4-28 UNF 3A THREADS A
features_providedHERMETICALLY SEALED CASE
nominal_thread_size0.250 INCHES IN
operating_temp_range-65.0 TO 150.0 CELSIUS DEGC
end_item_identificationNSN 2350-01-506-0132; ARMORED RECONNAISSANCE-ARIBORNE ASSUALT VEHICLE
thread_series_designatorUNF
mounting_facility_quantity1
overall_width_across_flats0.667 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
NSN5961-00-194-9074
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 1N3903 MFR OEM RECTIFIER,SEMICONDUCTOR DEVICE
KEY FEATURES
MOUNTING FACILITY QUANTITY: 1
JOINT ELECTRONIC DEVICE ENGINEERING COUNCIL/JEDEC/CASE OUTLINE DESIGNATION: DO-5
FEATURES PROVIDED: HERMETICALLY SEALED CASE
MOUNTING METHOD: THREADED STUD(S)
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 150.0 CELSIUS CASE DEGC
NOMINAL THREAD SIZE: 0.250 INCHES IN
CURRENT RATING PER CHARACTERISTIC: 20.00 MILLIAMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING FACILITY QUANTITY1
JOINT ELECTRONIC DEVICE ENGINEERING COUNCIL/JEDEC/CASE OUTLINE DESIGNATIONDO-5
FEATURES PROVIDEDHERMETICALLY SEALED CASE
OVERALL LENGTH0.450 INCHES MAXIMUM IN
MOUNTING METHODTHREADED STUD(S)
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT150.0 CELSIUS CASE DEGC
NOMINAL THREAD SIZE0.250 INCHES IN
CURRENT RATING PER CHARACTERISTIC20.00 MILLIAMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
OVERALL DIAMETER0.667 INCHES MAXIMUM IN
OVERALL WIDTH ACROSS FLATS0.667 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
1N3874Interchangeable
interchangeable cross-reference
interchangeable
RELEASE3944Interchangeable
interchangeable cross-reference
interchangeable
101-000026Interchangeable
interchangeable cross-reference
interchangeable
1N3879RInterchangeable
interchangeable cross-reference
interchangeable
1N3886Interchangeable
interchangeable cross-reference
interchangeable
5921253Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1N3903?
1N3903 is a RECTIFIER,SEMICONDUCTOR DEVICE.
What parts can replace 1N3903?
There are 16 known substitutes for 1N3903: 1N3874, RELEASE3944, 101-000026 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1N3903?
1N3903 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-194-9074. This indicates validated use in U.S. government and defense supply chains.
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