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Technical Data Sheet
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2N5166 ✓ 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 SEMICONDUCTOR DEVICE,THYRISTOR is a the manufacturer industrial component. Key specifications include overall_length: 0.380 INCHES MAXIMUM IN, mounting_method: PRESS FIT, overall_diameter: 0.505 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: PNPN, features_provided: HERMETICALLY SEALED CASE, internal_configuration: JUNCTION 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 5961-01-033-9378, 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
2N5166
NSN: 5961-01-033-9378
FSC: 5961
CAGE: 80131 — ELECTRONIC INDUSTRIES ASSOCIATION
SPECIFICATIONS
overall_length0.380 INCHES MAXIMUM IN
mounting_methodPRESS FIT
overall_diameter0.505 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: PNPN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
terminal_type_and_quantity2 TAB, SOLDER LUG
power_rating_per_characteristic5.0 WATTS MAXIMUM PEAK GATE POWER-FORWARD
current_rating_per_characteristic20.00 AMPERES NOMINAL ON-STATE CURRENT, RMS TOTAL
voltage_rating_in_volts_per_characteristic400.0 NOMINAL REPETITIVE PEAK REVERSE VOLTAGE
maximum_operating_temp_per_measurement_point105.0 CELSIUS CASE DEGC
NSN5961-01-033-9378
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 2N5166 MFR OEM SEMICONDUCTOR DEVICE,THYRISTOR
KEY FEATURES
•
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 105.0 CELSIUS CASE DEGC
•
OVERALL DIAMETER: 0.505 INCHES MAXIMUM IN
•
CURRENT RATING PER CHARACTERISTIC: 20.00 AMPERES NOMINAL ON-STATE CURRENT, RMS TOTAL
•
MOUNTING METHOD: PRESS FIT
•
SEMICONDUCTOR MATERIAL: SILICON
•
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASE: ANODE
TECHNICAL CHARACTERISTICS (FLIS)
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT105.0 CELSIUS CASE DEGC
OVERALL LENGTH0.380 INCHES MAXIMUM IN
OVERALL DIAMETER0.505 INCHES MAXIMUM IN
CURRENT RATING PER CHARACTERISTIC20.00 AMPERES NOMINAL ON-STATE CURRENT, RMS TOTAL
MOUNTING METHODPRESS FIT
SPECIAL FEATURESJUNCTION PATTERN ARRANGEMENT: PNPN
SEMICONDUCTOR MATERIALSILICON
ELECTRODE INTERNALLY-ELECTRICALLY CONNECTED TO CASEANODE
POWER RATING PER CHARACTERISTIC5.0 WATTS MAXIMUM PEAK GATE POWER-FORWARD
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC400.0 NOMINAL REPETITIVE PEAK REVERSE VOLTAGE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
2N5170Interchangeable
interchangeable cross-reference
interchangeable
2N5170AInterchangeable
interchangeable cross-reference
interchangeable
2N5165AInterchangeable
interchangeable cross-reference
interchangeable
RELEASE5700Interchangeable
interchangeable cross-reference
interchangeable
MCR808-4Interchangeable
interchangeable cross-reference
interchangeable
MCR2818R2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2N5166?
2N5166 is a SEMICONDUCTOR DEVICE,THYRISTOR.
What parts can replace 2N5166?
There are 15 known substitutes for 2N5166: 2N5170, 2N5170A, 2N5165A and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2N5166?
2N5166 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-033-9378. 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