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SA521A/A — Technical Data Sheet

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— · 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

SWITCH,RADIO FREQUENCY TRANSMISS. Key specifications include material: ALUMINUM ALLOY BODY, body_style: IRREGULAR, switch_type: NONTRANSFER, overall_width: 1.950 INCHES MAXIMUM IN, overall_height: 2.750 INCHES MAXIMUM IN, overall_length: 3.040 INCHES MINIMUM AND 3.340 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System 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
SA521A/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
materialALUMINUM ALLOY BODY
body_styleIRREGULAR
switch_typeNONTRANSFER
overall_width1.950 INCHES MAXIMUM IN
pole_quantity1
overall_height2.750 INCHES MAXIMUM IN
overall_length3.040 INCHES MINIMUM AND 3.340 INCHES MAXIMUM IN
switching_time20.0 MILLISECONDS MS
throw_quantity2
frequency_rating0.0 GIGAHERTZ MINIMUM AND 1.25 GIGAHERTZ MAXIMUM SINGLE FREQUENCY OPERATING
connector_end_designFEMALE
operating_temp_range-55.0 TO 85.0 CELSIUS DEGC
NSN5985-00-097-7374
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,RADIO FREQUENCY TRANSMISS TITLE COMPONENT PN SA521A/A MFR SWITCH,RADIO FREQUENCY
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
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
50010InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
43N1575InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
4730001961464InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
192032InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
S2479InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
US1003InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SA521A/A?
SA521A/A is a SWITCH,RADIO FREQUENCY TRANSMISS.
What parts can replace SA521A/A?
There are 19 known substitutes for SA521A/A: 50010, 43N1575, 4730001961464 and 16 more. Substitute compatibility should be verified for your specific system.
Is SA521A/A still available?
SA521A/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: September 2026