PartsTable
Technical Data Sheet
1855-0371 ✓ 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: 0.210 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 0.500 INCHES MINIMUM IN, overall_diameter: 0.230 INCHES MAXIMUM IN, features_provided: HERMETICALLY SEALED CASE, internal_configuration: FIELD EFFECT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-996-2121, 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
1855-0371
NSN: 5961-00-996-2121
FSC: 5961
CAGE: 1LQK8 — KEYSIGHT TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
overall_length0.210 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length0.500 INCHES MINIMUM IN
overall_diameter0.230 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED CASE
internal_configurationFIELD EFFECT
semiconductor_materialSILICON
terminal_circle_diameter0.100 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
specification/standard_data80131-RELEASE5198 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
power_rating_per_characteristic1.8 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
current_rating_per_characteristic10.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
NSN5961-00-996-2121
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 1855-0371 MFR OEM TRANSISTOR
KEY FEATURES
SEMICONDUCTOR MATERIAL: SILICON
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 40.0 MAXIMUM BREAKDOWN VOLTAGE, DRAIN-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE AND 40.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
TERMINAL CIRCLE DIAMETER: 0.100 INCHES NOMINAL IN
MOUNTING METHOD: TERMINAL
TERMINAL LENGTH: 0.500 INCHES MINIMUM IN
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD
FEATURES PROVIDED: HERMETICALLY SEALED CASE
CURRENT RATING PER CHARACTERISTIC: 10.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
TECHNICAL CHARACTERISTICS (FLIS)
SEMICONDUCTOR MATERIALSILICON
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC40.0 MAXIMUM BREAKDOWN VOLTAGE, DRAIN-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE AND 40.0 MAXIMUM BREAKDOWN VOLTAGE, GATE-TO-SOURCE, WITH ALL OTHER TERMINALS SHORT-CIRCUITED TO SOURCE
TERMINAL CIRCLE DIAMETER0.100 INCHES NOMINAL IN
MOUNTING METHODTERMINAL
TERMINAL LENGTH0.500 INCHES MINIMUM IN
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD
FEATURES PROVIDEDHERMETICALLY SEALED CASE
CURRENT RATING PER CHARACTERISTIC10.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASEGATE
OVERALL LENGTH0.210 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
RELEASE 5198Interchangeable
interchangeable cross-reference
interchangeable
2N4091Interchangeable
interchangeable cross-reference
interchangeable
2N4091AInterchangeable
interchangeable cross-reference
interchangeable
2N4092Interchangeable
interchangeable cross-reference
interchangeable
SM-B-525293Interchangeable
interchangeable cross-reference
interchangeable
2N4092AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1855-0371?
1855-0371 is a TRANSISTOR.
What parts can replace 1855-0371?
There are 19 known substitutes for 1855-0371: RELEASE 5198, 2N4091, 2N4091A and 16 more. Substitute compatibility should be verified for your specific system.
Is 1855-0371 still available?
1855-0371 is currently cancelled.
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