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Technical Data Sheet
1N646 ✓ 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,DIODE is a the manufacturer industrial component. Key specifications include material: SILICON SEMICONDUCTOR, overall_length: 0.200 INCHES MAXIMUM IN, mounting_method: TERMINAL, terminal_length: 1.000 INCHES MINIMUM IN, overall_diameter: 0.090 INCHES MAXIMUM IN, features_provided: HERMETICALLY SEALED CASE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5961-00-583-4249, 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
1N646
NSN: 5961-00-583-4249
FSC: 5961
CAGE: D6528 — LACON ELECTRONIC GMBH (DEU)
SPECIFICATIONS
materialSILICON SEMICONDUCTOR
overall_length0.200 INCHES MAXIMUM IN
mounting_methodTERMINAL
terminal_length1.000 INCHES MINIMUM IN
overall_diameter0.090 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED CASE
internal_configurationJUNCTION CONTACT ALL SEMICONDUCTOR DEVICE DIODE
semiconductor_materialSILICON ALL SEMICONDUCTOR DEVICE DIODE
end_item_identificationBLANK SYSTEM
terminal_type_and_quantity2 UNINSULATED WIRE LEAD
component_name_and_quantity2 SEMICONDUCTOR DEVICE DIODE
specification/standard_data81349-MIL-S-19500/240 GOVERNMENT SPECIFICATION
NSN5961-00-583-4249
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 1N646 MFR OEM SEMICONDUCTOR DEVICE,DIODE
KEY FEATURES
MATERIAL: GLASS ENCLOSURE
CURRENT RATING PER CHARACTERISTIC: 0.40 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
TERMINAL LENGTH: 1.000 INCHES MINIMUM IN
OVERALL DIAMETER: 0.125 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT: 150.0 CELSIUS AMBIENT AIR DEGC
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC: 300.0 MAXIMUM REVERSE VOLTAGE, PEAK
MOUNTING METHOD: TERMINAL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALGLASS ENCLOSURE
CURRENT RATING PER CHARACTERISTIC0.40 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
TERMINAL LENGTH1.000 INCHES MINIMUM IN
OVERALL DIAMETER0.125 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
MAXIMUM OPERATING TEMP PER MEASUREMENT POINT150.0 CELSIUS AMBIENT AIR DEGC
OVERALL LENGTH0.300 INCHES MAXIMUM IN
VOLTAGE RATING IN VOLTS PER CHARACTERISTIC300.0 MAXIMUM REVERSE VOLTAGE, PEAK
MOUNTING METHODTERMINAL
POWER RATING PER CHARACTERISTIC0.6 WATTS MAXIMUM TOTAL POWER DISSIPATION
SPECIFICATION/STANDARD DATA80131-RELEASE1964 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
561059Interchangeable
interchangeable cross-reference
interchangeable
2578059Interchangeable
interchangeable cross-reference
interchangeable
1D19-1Interchangeable
interchangeable cross-reference
interchangeable
1N646Interchangeable
interchangeable cross-reference
interchangeable
PS656Interchangeable
interchangeable cross-reference
interchangeable
SG174Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1N646?
1N646 is a SEMICONDUCTOR DEVICE,DIODE.
What parts can replace 1N646?
There are 9 known substitutes for 1N646: 561059, 2578059, 1D19-1 and 6 more. Substitute compatibility should be verified for your specific system.
Is 1N646 still available?
1N646 is currently cancelled.
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