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Technical Data Sheet
JAN2N4857A ✓ 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 5961-00-230-7559, 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
JAN2N4857A
NSN: 5961-00-230-7559
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
specification/standard_data81349-MIL-PRF-19500/385 GOVERNMENT SPECIFICATION
power_rating_per_characteristic1.8 WATTS MAXIMUM TOTAL POWER DISSIPATION
current_rating_per_characteristic50.00 MILLIAMPERES MAXIMUM GATE CURRENT
NSN5961-00-230-7559
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 JAN2N4857A MFR OEM TRANSISTOR
KEY FEATURES
INTERNAL CONFIGURATION: FIELD EFFECT
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASE: GATE
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 40.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 40.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 40.0 MAXIMUM GATE TO SOURCE VOLTAGE
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD
OVERALL DIAMETER: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
POWER RATING PER CHARACTERISTIC: 1.8 WATTS MAXIMUM TOTAL POWER DISSIPATION
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 200.0 CELSIUS AMBIENT AIR DEGC
SPECIFICATION/STANDARD DATA: 81349-MIL-PRF-19500/385 GOVERNMENT SPECIFICATION
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL CONFIGURATIONFIELD EFFECT
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASEGATE
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC40.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 40.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 40.0 MAXIMUM GATE TO SOURCE VOLTAGE
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD
OVERALL DIAMETER0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
POWER RATING PER CHARACTERISTIC1.8 WATTS MAXIMUM TOTAL POWER DISSIPATION
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT200.0 CELSIUS AMBIENT AIR DEGC
SPECIFICATION/STANDARD DATA81349-MIL-PRF-19500/385 GOVERNMENT SPECIFICATION
OVERALL LENGTH0.170 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN
MOUNTING METHODTERMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 35
7040025-1Interchangeable
interchangeable cross-reference
interchangeable
2N3436Interchangeable
interchangeable cross-reference
interchangeable
B26044Interchangeable
interchangeable cross-reference
interchangeable
RELEASE5360Interchangeable
interchangeable cross-reference
interchangeable
2N4857Interchangeable
interchangeable cross-reference
interchangeable
2N4857AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is JAN2N4857A?
JAN2N4857A is a TRANSISTOR.
What parts can replace JAN2N4857A?
There are 35 known substitutes for JAN2N4857A: 7040025-1, 2N3436, B26044 and 32 more. Substitute compatibility should be verified for your specific system.
Is JAN2N4857A still available?
JAN2N4857A is currently cancelled.
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