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TRMRF531 ✓ 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: 0.260 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 0.500 INCHES MINIMUM IN, overall_diameter: 0.370 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: NPN, features_provided: HERMETICALLY SEALED CASE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-065-2332, 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
TRMRF531
NSN: 5961-01-065-2332
FSC: 5961
CAGE: U0352 — DRS RUGGED SYSTEMS (EUROPE) LTD (GBR)
SPECIFICATIONS
overall_length0.260 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length0.500 INCHES MINIMUM IN
overall_diameter0.370 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
terminal_circle_diameter0.210 INCHES MAXIMUM IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
power_rating_per_characteristic2.5 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
current_rating_per_characteristic10.00 MICROAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, EMITTER OPEN
NSN5961-01-065-2332
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 TRMRF531 MFR OEM TRANSISTOR
KEY FEATURES
•
INTERNAL CONFIGURATION: JUNCTION CONTACT
•
OVERALL DIAMETER: 0.370 INCHES MAXIMUM IN
•
TERMINAL CIRCLE DIAMETER: 0.210 INCHES MAXIMUM IN
•
SEMICONDUCTOR MATERIAL: SILICON
•
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 100.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 3.5 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN AND 100.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
•
TERMINAL LENGTH: 0.500 INCHES MINIMUM IN
•
FEATURES PROVIDED: HERMETICALLY SEALED CASE
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL CONFIGURATIONJUNCTION CONTACT
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: NPN
OVERALL DIAMETER0.370 INCHES MAXIMUM IN
TERMINAL CIRCLE DIAMETER0.210 INCHES MAXIMUM IN
SEMICONDUCTOR MATERIALSILICON
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC100.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 3.5 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN AND 100.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
TERMINAL LENGTH0.500 INCHES MINIMUM IN
FEATURES PROVIDEDHERMETICALLY SEALED CASE
MOUNTING METHODTERMINAL
POWER RATING PER CHARACTERISTIC2.5 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
402602Interchangeable
interchangeable cross-reference
interchangeable
238Z036U01Interchangeable
interchangeable cross-reference
interchangeable
MRF531Interchangeable
interchangeable cross-reference
interchangeable
5214-360Interchangeable
interchangeable cross-reference
interchangeable
2CC508Interchangeable
interchangeable cross-reference
interchangeable
410642Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TRMRF531?
TRMRF531 is a TRANSISTOR.
What parts can replace TRMRF531?
There are 7 known substitutes for TRMRF531: 402602, 238Z036U01, MRF531 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TRMRF531?
TRMRF531 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-065-2332. 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