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Technical Data Sheet
PartsTable / AMPLIFIER,RADIO FREQUENCY / A81-85
A81-85 ✓ 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 A81-85 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5996-00-880-3562, 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
A81-85
NSN: 5996-00-880-3562
FSC: 5996 — AMPLIFIER,RADIO FREQUENCY
CAGE: 03487 — ANDREA ELECTRONICS CORPORATION (USA)
SPECIFICATIONS
Part NumberA81-85
NSN5996-00-880-3562
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available A81-85 TITLE COMPONENT PN A81-85 MFR A81-85
KEY FEATURES
•
FREQUENCY PER CHANNEL: 300.0 HERTZ MINIMUM OPERATING CHANNEL AND 6.0 KILOHERTZ MAXIMUM OPERATING CHANNEL
•
IMPEDANCE RATING PER CHANNEL: 15.000 OHMS INPUT CHANNEL AND 50.000 OHMS OUTPUT CHANNEL
•
EXTERNAL DC OPERATING VOLTAGE IN VOLTS: 17.0 MINIMUM SINGLE VOLTAGE AND 29.0 MAXIMUM SINGLE VOLTAGE
•
VARIATION FREQUENCY RATING IN DECIBELS: 6.0
•
AVERAGE POWER RATING PER CHANNEL: 26.0 MILLIWATTS OUTPUT
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH2.500 INCHES NOMINAL IN
OVERALL LENGTH3.500 INCHES NOMINAL IN
FREQUENCY PER CHANNEL300.0 HERTZ MINIMUM OPERATING CHANNEL AND 6.0 KILOHERTZ MAXIMUM OPERATING CHANNEL
IMPEDANCE RATING PER CHANNEL15.000 OHMS INPUT CHANNEL AND 50.000 OHMS OUTPUT CHANNEL
EXTERNAL DC OPERATING VOLTAGE IN VOLTS17.0 MINIMUM SINGLE VOLTAGE AND 29.0 MAXIMUM SINGLE VOLTAGE
VARIATION FREQUENCY RATING IN DECIBELS6.0
AVERAGE POWER RATING PER CHANNEL26.0 MILLIWATTS OUTPUT
OVERALL HEIGHT1.906 INCHES NOMINAL IN
BASIC SHAPE STYLERECTANGULAR OR SQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
837175-1Interchangeable
interchangeable cross-reference
interchangeable
3855-1Y1-BInterchangeable
interchangeable cross-reference
interchangeable
K537Interchangeable
interchangeable cross-reference
interchangeable
242005Interchangeable
interchangeable cross-reference
interchangeable
827425Interchangeable
interchangeable cross-reference
interchangeable
046-110Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A81-85?
A81-85 is a A81-85.
What parts can replace A81-85?
There are 18 known substitutes for A81-85: 837175-1, 3855-1Y1-B, K537 and 15 more. Substitute compatibility should be verified for your specific system.
Is A81-85 still available?
A81-85 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