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Technical Data Sheet

STG3999 — Network Technical Data

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— · 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: 0.250 INCHES NOMINAL IN, mounting_method: TERMINAL, terminal_length: 1.250 INCHES NOMINAL IN, overall_diameter: 0.343 INCHES NOMINAL IN, special_features: WEAPON SYSTEM ESSENTIAL; JUNCTION PATTERN ARRANGEMENT: PNP, features_provided: HERMETICALLY SEALED CASE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-988-7630, 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
STG3999
NSN: 5961-00-988-7630
FSC: 5961
CAGE: 50891 — SEMICONDUCTOR TECHNOLOGY, INC. DBA SEMICONDUCTOR TECHNOLOGY INC (USA)
SPECIFICATIONS
overall_length0.250 INCHES NOMINAL IN
mounting_methodTERMINAL
terminal_length1.250 INCHES NOMINAL IN
overall_diameter0.343 INCHES NOMINAL IN
special_featuresWEAPON SYSTEM ESSENTIAL; JUNCTION PATTERN ARRANGEMENT: PNP
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT
semiconductor_materialGERMANIUM
terminal_circle_diameter0.187 INCHES NOMINAL IN
terminal_type_and_quantity3 UNINSULATED WIRE LEAD
criticality_code_justificationFEAT
power_rating_per_characteristic150.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
NSN5961-00-988-7630
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 STG3999 MFR OEM TRANSISTOR
KEY FEATURES
•
MOUNTING METHOD: TERMINAL
•
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 15.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 15.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
TERMINAL CIRCLE DIAMETER: 0.187 INCHES NOMINAL IN
•
CURRENT RATING PER CHARACTERISTIC: 40.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
•
SEMICONDUCTOR MATERIAL: GERMANIUM
•
TERMINAL LENGTH: 1.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MOUNTING METHODTERMINAL
END ITEM IDENTIFICATIONNIMITZ CLASS CVN; FORRESTAL CLASS CV; RADAR, SERIES AN/SPS-49(V); SPRUANCE CLASS DD (963); VIRGINIA CLASS CGN (41); STURGEON CLASS SSN (637); KIDD CLASS DDG; LOS ANGELES CLASS SSN (688); TICONDEROGA CLASS CG (47)
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC15.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 15.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
CRITICALITY CODE JUSTIFICATIONFEAT
TERMINAL CIRCLE DIAMETER0.187 INCHES NOMINAL IN
CURRENT RATING PER CHARACTERISTIC40.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
SEMICONDUCTOR MATERIALGERMANIUM
TERMINAL LENGTH1.250 INCHES NOMINAL IN
OVERALL DIAMETER0.343 INCHES NOMINAL IN
OVERALL LENGTH0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
JANC71Interchangeable
interchangeable cross-reference
interchangeable
UG262BUInterchangeable
interchangeable cross-reference
interchangeable
31-211Interchangeable
interchangeable cross-reference
interchangeable
R4164FInterchangeable
interchangeable cross-reference
interchangeable
XR1908SInterchangeable
interchangeable cross-reference
interchangeable
2L-8079Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is STG3999?
STG3999 is a TRANSISTOR.
What parts can replace STG3999?
There are 21 known substitutes for STG3999: JANC71, UG262BU, 31-211 and 18 more. Substitute compatibility should be verified for your specific system.
Is STG3999 still available?
STG3999 is currently cancelled.
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