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Technical Data Sheet
PartsTable / COMPONENT / MM1941
MM1941 ✓ 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: 0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN, mounting_method: TERMINALTERMINAL, terminal_length: 0.500 INCHES MINIMUM0.500 INCHES MINIMUM IN, overall_diameter: 0.220 INCHES NOMINAL0.220 INCHES NOMINAL IN, features_provided: HERMETICALLY SEALED CASEHERMETICALLY SEALED CASE, internal_configuration: JUNCTION CONTACTJUNCTION CONTACT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-057-5641, 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
MM1941
NSN: 5961-00-057-5641
FSC: 5961
CAGE: 04713 — FREESCALE SEMICONDUCTOR, INC. (USA)
SPECIFICATIONS
overall_length0.188 INCHES NOMINAL0.188 INCHES NOMINAL IN
mounting_methodTERMINALTERMINAL
terminal_length0.500 INCHES MINIMUM0.500 INCHES MINIMUM IN
overall_diameter0.220 INCHES NOMINAL0.220 INCHES NOMINAL IN
features_providedHERMETICALLY SEALED CASEHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACTJUNCTION CONTACT
semiconductor_materialSILICONSILICON
terminal_circle_diameter0.100 INCHES NOMINAL0.100 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
internal_junction_configurationNPNNPN
power_rating_per_characteristic300.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION300.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
current_rating_per_characteristic200.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC200.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
NSN5961-00-057-5641
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 MM1941 MFR OEM TRANSISTOR
KEY FEATURES
•
MOUNTING METHOD: TERMINALTERMINAL
•
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 3.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN3.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
•
TERMINAL CIRCLE DIAMETER: 0.100 INCHES NOMINAL0.100 INCHES NOMINAL IN
•
SEMICONDUCTOR MATERIAL: SILICONSILICON
•
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 200.0 CELSIUS JUNCTION200.0 CELSIUS JUNCTION DEGC
•
POWER RATING PER CHARACTERISTIC: 300.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION300.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
•
INTERNAL JUNCTION CONFIGURATION: NPNNPN
•
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASE: COLLECTORCOLLECTOR
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING METHODTERMINALTERMINAL
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 30.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 3.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN3.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
TERMINAL CIRCLE DIAMETER0.100 INCHES NOMINAL0.100 INCHES NOMINAL IN
SEMICONDUCTOR MATERIALSILICONSILICON
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT200.0 CELSIUS JUNCTION200.0 CELSIUS JUNCTION DEGC
POWER RATING PER CHARACTERISTIC300.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION300.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
INTERNAL JUNCTION CONFIGURATIONNPNNPN
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASECOLLECTORCOLLECTOR
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
INTERNAL CONFIGURATIONJUNCTION CONTACTJUNCTION CONTACT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
K157Interchangeable
interchangeable cross-reference
interchangeable
KC-53FE01-46Interchangeable
interchangeable cross-reference
interchangeable
A140050Interchangeable
interchangeable cross-reference
interchangeable
3-0906-12Interchangeable
interchangeable cross-reference
interchangeable
36B42403Interchangeable
interchangeable cross-reference
interchangeable
00781568101889Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MM1941?
MM1941 is a TRANSISTOR.
What parts can replace MM1941?
There are 7 known substitutes for MM1941: K157, KC-53FE01-46, A140050 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MM1941?
MM1941 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-057-5641. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026