PartsTable
Technical Data Sheet
2N1890 ✓ 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

RESISTOR,FIXED,WIRE WOUND,INDUCT. Key specifications include overall_length: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN, transfer_ratio: 50.0 MAXIMUM SMALL-SIGNAL SHORT-CIRCUIT FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER, mounting_method: TERMINAL, terminal_length: 1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN, overall_diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: NPN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-491-7277, 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
2N1890
NSN: 5961-00-491-7277
FSC: 5961
CAGE: 49956 — RAYTHEON COMPANY DIV CORP (USA)
SPECIFICATIONS
overall_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
transfer_ratio50.0 MAXIMUM SMALL-SIGNAL SHORT-CIRCUIT FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
mounting_methodTERMINAL
terminal_length1.500 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
overall_diameter0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
terminal_circle_diameter0.200 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
specification/standard_data81349-MIL-S-19500/225 GOVERNMENT SPECIFICATION
NSN5961-00-491-7277
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 2N1890 MFR OEM RESISTOR,FIXED,WIRE WOUND,INDUCT
KEY FEATURES
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 100.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 7.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 200.0 CELSIUS JUNCTION DEGC
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD
TERMINAL CIRCLE DIAMETER: 0.200 INCHES NOMINAL IN
SEMICONDUCTOR MATERIAL: SILICON
OVERALL DIAMETER: 0.370 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC100.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 7.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT200.0 CELSIUS JUNCTION DEGC
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: NPN
TERMINAL CIRCLE DIAMETER0.200 INCHES NOMINAL IN
OVERALL LENGTH0.260 INCHES MAXIMUM IN
SEMICONDUCTOR MATERIALSILICON
OVERALL DIAMETER0.370 INCHES MAXIMUM IN
TRANSFER RATIO50.0 MAXIMUM SMALL-SIGNAL SHORT-CIRCUIT FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
INTERNAL CONFIGURATIONJUNCTION CONTACT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
475426Interchangeable
interchangeable cross-reference
interchangeable
JAN2N1890AInterchangeable
interchangeable cross-reference
interchangeable
JAN2N1890Interchangeable
interchangeable cross-reference
interchangeable
2N1890Interchangeable
interchangeable cross-reference
interchangeable
Q531752024Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-19500/225Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N1890?
2N1890 is a RESISTOR,FIXED,WIRE WOUND,INDUCT.
What parts can replace 2N1890?
There are 6 known substitutes for 2N1890: 475426, JAN2N1890A, JAN2N1890 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2N1890?
2N1890 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-491-7277. This indicates validated use in U.S. government and defense supply chains.
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