PartsTable
Technical Data Sheet
TIP121 ✓ 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

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include overall_width: 0.420 INCHES MAXIMUM IN, overall_height: 0.190 INCHES MAXIMUM IN, overall_length: 0.625 INCHES MAXIMUM IN, mounting_method: UNTHREADED HOLE(S), terminal_length: 1.000 INCHES MINIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: NPN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-037-8667, 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
TIP121
NSN: 5961-01-037-8667
FSC: 5961
CAGE: 04713 — FREESCALE SEMICONDUCTOR, INC. (USA)
SPECIFICATIONS
overall_width0.420 INCHES MAXIMUM IN
overall_height0.190 INCHES MAXIMUM IN
overall_length0.625 INCHES MAXIMUM IN
mounting_methodUNTHREADED HOLE(S)
terminal_length1.000 INCHES MINIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT-DARLINGTON CONNECTED
semiconductor_materialSILICON
end_item_identificationHULL OBRP
mounting_facility_quantity1
terminal_type_and_quantity3 TAB, SOLDER LUG
NSN5961-01-037-8667
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 TIP121 MFR OEM RESISTOR,VARIABLE,NONWIRE WOUND,
KEY FEATURES
CURRENT RATING PER CHARACTERISTIC: 200.00 MICROAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, EMITTER OPEN
INTERNAL CONFIGURATION: JUNCTION CONTACT
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 80.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 80.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
TERMINAL LENGTH: 1.000 INCHES MINIMUM IN
TERMINAL TYPE AND QUANTITY: 3 UNINSULATED WIRE LEAD
MOUNTING METHOD: TERMINAL
TECHNICAL CHARACTERISTICS (FLIS)
CURRENT RATING PER CHARACTERISTIC200.00 MICROAMPERES MAXIMUM COLLECTOR CUTOFF CURRENT, DC, EMITTER OPEN
INTERNAL CONFIGURATIONJUNCTION CONTACT
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC80.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 80.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN
TERMINAL LENGTH1.000 INCHES MINIMUM IN
OVERALL WIDTH0.380 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
TERMINAL TYPE AND QUANTITY3 UNINSULATED WIRE LEAD
OVERALL HEIGHT0.165 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
MOUNTING METHODTERMINAL
FEATURES PROVIDEDHERMETICALLY SEALED CASE
POWER RATING PER CHARACTERISTIC2.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
1340Interchangeable
interchangeable cross-reference
interchangeable
44101Interchangeable
interchangeable cross-reference
interchangeable
12231Interchangeable
interchangeable cross-reference
interchangeable
440025Interchangeable
interchangeable cross-reference
interchangeable
24114Interchangeable
interchangeable cross-reference
interchangeable
6135-99-900Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is TIP121?
TIP121 is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace TIP121?
There are 21 known substitutes for TIP121: 1340, 44101, 12231 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for TIP121?
TIP121 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-01-037-8667. This indicates validated use in U.S. government and defense supply chains.
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