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Technical Data Sheet
PartsTable / COMPONENT / SA-521A/A
SA-521A/A ✓ 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 SA-521A/A is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-097-7374, 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
SA-521A/A
NSN: 5985-00-097-7374
FSC: 5985
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberSA-521A/A
NSN5985-00-097-7374
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SA-521A/A TITLE COMPONENT PN SA-521A/A MFR SA-521A/A
KEY FEATURES
•
MINIMUM CROSSTALK RATING IN DECIBELS: 40.0 SINGLE
•
RF POWER HANDLING CAPABILITY: 100.0 WATTS AVERAGE FIRST
•
SWITCH TYPE: NONTRANSFER
•
INSERTION LOSS IN DECIBELS: 0.20 SINGLE
•
OPERATING TEMP RANGE: -55.0 TO 85.0 CELSIUS DEGC
•
SWITCHING TIME: 20.0 MILLISECONDS MS
•
ACTUATOR VOLTAGE IN VOLTS: 28.0 NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
MINIMUM CROSSTALK RATING IN DECIBELS40.0 SINGLE
RF POWER HANDLING CAPABILITY100.0 WATTS AVERAGE FIRST
SWITCH TYPENONTRANSFER
INSERTION LOSS IN DECIBELS0.20 SINGLE
OPERATING TEMP RANGE-55.0 TO 85.0 CELSIUS DEGC
OVERALL HEIGHT2.750 INCHES MAXIMUM IN
SWITCHING TIME20.0 MILLISECONDS MS
ACTUATOR VOLTAGE IN VOLTS28.0 NOMINAL
THROW QUANTITY2
SWITCH OPERATION SEQUENCEMAKES BEFORE BREAKS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
50010Interchangeable
interchangeable cross-reference
interchangeable
43N1575Interchangeable
interchangeable cross-reference
interchangeable
4730001961464Interchangeable
interchangeable cross-reference
interchangeable
192032Interchangeable
interchangeable cross-reference
interchangeable
S2479Interchangeable
interchangeable cross-reference
interchangeable
US1003Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SA-521A/A?
SA-521A/A is a SA-521A/A.
What parts can replace SA-521A/A?
There are 19 known substitutes for SA-521A/A: 50010, 43N1575, 4730001961464 and 16 more. Substitute compatibility should be verified for your specific system.
Is SA-521A/A still available?
SA-521A/A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026