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Technical Data Sheet
2N4857A ✓ 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: 0.170 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 0.500 INCHES MINIMUM IN, overall_diameter: 0.209 INCHES MINIMUM AND 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 5961-00-146-0247, 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
2N4857A
NSN: 5961-00-146-0247
FSC: 5961
CAGE: C7191 — ADELCO ELEKTRONIK GMBH (DEU)
SPECIFICATIONS
overall_length0.170 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length0.500 INCHES MINIMUM IN
overall_diameter0.209 INCHES MINIMUM AND 0.230 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
power_rating_per_characteristic350.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
current_rating_per_characteristic50.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
electrode_internally-electrically_connected_to_caseGATE
NSN5961-00-146-0247
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 2N4857A MFR OEM TRANSISTOR
KEY FEATURES
OVERALL DIAMETER: 0.219 INCHES MAXIMUM IN
FEATURES PROVIDED: HERMETICALLY SEALED CASE
CURRENT RATING PER CHARACTERISTIC: 50.00 MILLIAMPERES MAXIMUM GATE CURRENT
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASE: GATE
SEMICONDUCTOR MATERIAL: SILICON
TERMINAL CIRCLE DIAMETER: 0.100 INCHES NOMINAL IN
INTERNAL CONFIGURATION: FIELD EFFECT
TERMINAL LENGTH: 0.500 INCHES MINIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.219 INCHES MAXIMUM IN
FEATURES PROVIDEDHERMETICALLY SEALED CASE
CURRENT RATING PER CHARACTERISTIC50.00 MILLIAMPERES MAXIMUM GATE CURRENT
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASEGATE
SEMICONDUCTOR MATERIALSILICON
TERMINAL CIRCLE DIAMETER0.100 INCHES NOMINAL IN
INTERNAL CONFIGURATIONFIELD EFFECT
TERMINAL LENGTH0.500 INCHES MINIMUM IN
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
MOUNTING METHODTERMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
2N4857AInterchangeable
interchangeable cross-reference
interchangeable
911416-2Interchangeable
interchangeable cross-reference
interchangeable
2N4858Interchangeable
interchangeable cross-reference
interchangeable
RELEASE5360Interchangeable
interchangeable cross-reference
interchangeable
5016091-002Interchangeable
interchangeable cross-reference
interchangeable
2N4860Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N4857A?
2N4857A is a TRANSISTOR.
What parts can replace 2N4857A?
There are 19 known substitutes for 2N4857A: 2N4857A, 911416-2, 2N4858 and 16 more. Substitute compatibility should be verified for your specific system.
Is 2N4857A still available?
2N4857A is currently cancelled.
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