PartsTable
Technical Data Sheet
638128-7 ✓ 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: 0.975 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN, mounting_method: THREADED STUD(S), overall_diameter: 0.370 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: NPN, features_provided: HERMETICALLY SEALED CASE, nominal_thread_size: 0.190 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-333-9413, 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
638128-7
NSN: 5961-00-333-9413
FSC: 5961
CAGE: 96214 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
overall_length0.975 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN
mounting_methodTHREADED STUD(S)
overall_diameter0.370 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: NPN
features_providedHERMETICALLY SEALED CASE
nominal_thread_size0.190 INCHES IN
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
thread_series_designatorUNF
mounting_facility_quantity1
overall_width_across_flats0.424 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
terminal_type_and_quantity3 TAB, SOLDER LUG AND 1 WIRE HOOK
NSN5961-00-333-9413
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 638128-7 MFR OEM TRANSISTOR
KEY FEATURES
CURRENT RATING PER CHARACTERISTIC: 5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
NOMINAL THREAD SIZE: 0.190 INCHES IN
TERMINAL TYPE AND QUANTITY: 3 TAB, SOLDER LUG AND 1 WIRE HOOK
SPECIFICATION/STANDARD DATA: 81349-MIL-S-19500/374 GOVERNMENT SPECIFICATION
SEMICONDUCTOR MATERIAL: SILICON
MOUNTING METHOD: THREADED STUD(S)
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 100.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 8.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
TECHNICAL CHARACTERISTICS (FLIS)
CURRENT RATING PER CHARACTERISTIC5.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
NOMINAL THREAD SIZE0.190 INCHES IN
OVERALL LENGTH0.975 INCHES MINIMUM AND 1.130 INCHES MAXIMUM IN
TERMINAL TYPE AND QUANTITY3 TAB, SOLDER LUG AND 1 WIRE HOOK
SPECIFICATION/STANDARD DATA81349-MIL-S-19500/374 GOVERNMENT SPECIFICATION
SEMICONDUCTOR MATERIALSILICON
MOUNTING METHODTHREADED STUD(S)
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC100.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 8.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
INTERNAL CONFIGURATIONJUNCTION CONTACT
OVERALL DIAMETER0.370 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
JAN2N3997AInterchangeable
interchangeable cross-reference
interchangeable
MILS19500-374Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-19500/374Interchangeable
interchangeable cross-reference
interchangeable
JAN2N3998Interchangeable
interchangeable cross-reference
interchangeable
JAN2N3998AInterchangeable
interchangeable cross-reference
interchangeable
2623320Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 638128-7?
638128-7 is a TRANSISTOR.
What parts can replace 638128-7?
There are 30 known substitutes for 638128-7: JAN2N3997A, MILS19500-374, MIL-PRF-19500/374 and 27 more. Substitute compatibility should be verified for your specific system.
Is 638128-7 still available?
638128-7 is currently cancelled.
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