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Technical Data Sheet
644073 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The TRANSISTOR is a the manufacturer industrial component. Key specifications include overall_length: 0.297 INCHES NOMINAL IN, mounting_method: UNTHREADED HOLE(S), overall_diameter: 0.620 INCHES MAXIMUM IN, special_features: JUNCTION PATTERN ARRANGEMENT: PNP, internal_configuration: JUNCTION CONTACT, semiconductor_material: SILICON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2520-00-493-7223, 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
644073
NSN: 2520-00-493-7223
FSC: 2520
CAGE: 89926 — NEW HOLLAND CONSTRUCTION (USA)
SPECIFICATIONS
overall_length0.297 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
overall_diameter0.620 INCHES MAXIMUM IN
special_featuresJUNCTION PATTERN ARRANGEMENT: PNP
internal_configurationJUNCTION CONTACT
semiconductor_materialSILICON
mounting_facility_quantity2
terminal_type_and_quantity2 UNINSULATED WIRE LEAD AND 1 CASE
specification/standard_data80131-RELEASE5109 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
power_rating_per_characteristic25.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
current_rating_per_characteristic1.00 AMPERES MAXIMUM BASE CURRENT, DC AND 2.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
general_characteristics_item_descriptionSTEEL; 6.000 IN. OD; 0.938 IN. W; 2.625 IN. OD BORE SPLEENED; 2.125 IN. MAJOR DIA; 1.750 IN. MINOR DIA; 12 SPLEENS IN
NSN2520-00-493-7223
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TRANSISTOR TITLE COMPONENT PN 644073 MFR TRANSISTOR
KEY FEATURES
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL; 6.000 IN. OD; 0.938 IN. W; 2.625 IN. OD BORE SPLEENED; 2.125 IN. MAJOR DIA; 1.750 IN. MINOR DIA; 12 SPLEENS IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL; 6.000 IN. OD; 0.938 IN. W; 2.625 IN. OD BORE SPLEENED; 2.125 IN. MAJOR DIA; 1.750 IN. MINOR DIA; 12 SPLEENS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
644073Interchangeable
interchangeable cross-reference
interchangeable
2068206-701Interchangeable
interchangeable cross-reference
interchangeable
2N3741AInterchangeable
interchangeable cross-reference
interchangeable
0644073-9Interchangeable
Same NIIN cross-reference
interchangeable
70644073Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 644073?
644073 is a TRANSISTOR.
What parts can replace 644073?
There are 5 known substitutes for 644073: 644073, 2068206-701, 2N3741A and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 644073?
644073 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2520-00-493-7223. This indicates validated use in U.S. government and defense supply chains.
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