PartsTable
Technical Data Sheet
MU939 ✓ 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: 0.190 INCHES NOMINAL 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 product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-095-4154, 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
MU939
NSN: 5961-01-095-4154
FSC: 5961
CAGE: 17856 — SILICONIX INCORPORATED DIV SILICONIX (USA)
SPECIFICATIONS
overall_length0.190 INCHES NOMINAL 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_quantity4 UNINSULATED WIRE LEAD
power_rating_per_characteristic375.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
current_rating_per_characteristic-50.00 MILLIAMPERES MAXIMUM DRAIN CURRENT
voltage_rating_in_volts_per_characteristic40.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 40.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 125.0 MAXIMUM GATE TO SOURCE VOLTAGE
NSN5961-01-095-4154
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 MU939 MFR OEM TRANSISTOR
KEY FEATURES
FEATURES PROVIDED: HERMETICALLY SEALED CASE
SEMICONDUCTOR MATERIAL: SILICON
TEST DATA DOCUMENT: 30003-642AS3410 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
POWER RATING PER CHARACTERISTIC: 375.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
MOUNTING METHOD: TERMINAL
TERMINAL LENGTH: 0.500 INCHES MINIMUM IN
INTERNAL CONFIGURATION: FIELD EFFECT
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.190 INCHES NOMINAL IN
FEATURES PROVIDEDHERMETICALLY SEALED CASE
SEMICONDUCTOR MATERIALSILICON
TEST DATA DOCUMENT30003-642AS3410 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
POWER RATING PER CHARACTERISTIC375.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
MOUNTING METHODTERMINAL
TERMINAL LENGTH0.500 INCHES MINIMUM IN
INTERNAL CONFIGURATIONFIELD EFFECT
OVERALL DIAMETER0.230 INCHES MAXIMUM IN
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC40.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 40.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND 125.0 MAXIMUM GATE TO SOURCE VOLTAGE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
RELEASE5870Interchangeable
interchangeable cross-reference
interchangeable
M113Interchangeable
interchangeable cross-reference
interchangeable
258409-1Interchangeable
interchangeable cross-reference
interchangeable
AN123964Interchangeable
interchangeable cross-reference
interchangeable
2-111N179-70Interchangeable
interchangeable cross-reference
interchangeable
M5-132Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MU939?
MU939 is a TRANSISTOR.
What parts can replace MU939?
There are 12 known substitutes for MU939: RELEASE5870, M113, 258409-1 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MU939?
MU939 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-095-4154. This indicates validated use in U.S. government and defense supply chains.
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