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Technical Data Sheet
SM-B-539921 ✓ 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 MICROPHONE,DYNAMIC is a the manufacturer industrial component. Key specifications include width: 1.125 INCHES NOMINAL IN, height: 1.750 INCHES NOMINAL IN, length: 1.250 INCHES NOMINAL IN, body_style: MASK TYPE, mounting_method: CLIP, impedance_rating: 5.0 OHMS NOMINAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5965-00-900-8102, 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
SM-B-539921
NSN: 5965-00-900-8102
FSC: 5965
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
width1.125 INCHES NOMINAL IN
height1.750 INCHES NOMINAL IN
length1.250 INCHES NOMINAL IN
body_styleMASK TYPE
mounting_methodCLIP
impedance_rating5.0 OHMS NOMINAL
polarity_connectionNOT REQUIRED
accessory_componentsCABLE AND CONNECTOR
extended_cable_length2.2 FEET NOMINAL FT
cable_conductor_quantity2
connector_identificationU-173/U
electrical_connection_typeCONNECTOR RECEPTACLE
NSN5965-00-900-8102
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROPHONE,DYNAMIC TITLE COMPONENT PN SM-B-539921 MFR MICROPHONE,DYNAMIC
KEY FEATURES
CABLE CONDUCTOR QUANTITY: 2
ACCESSORY COMPONENTS: CABLE AND CONNECTOR
OUTPUT SENSITIVITY RATING IN DECIBELS: -55.0
OUTPUT SENSITIVITY RATING REFERENCE: 200 DYNES PER SQ CENTIMETER
IMPEDANCE RATING: 5.0 OHMS NOMINAL
POLARITY CONNECTION: NOT REQUIRED
MOUNTING METHOD: CLIP
CONNECTOR MANUFACTURER CODE: 97151
TECHNICAL CHARACTERISTICS (FLIS)
CABLE CONDUCTOR QUANTITY2
ACCESSORY COMPONENTSCABLE AND CONNECTOR
OUTPUT SENSITIVITY RATING IN DECIBELS-55.0
OUTPUT SENSITIVITY RATING REFERENCE200 DYNES PER SQ CENTIMETER
IMPEDANCE RATING5.0 OHMS NOMINAL
POLARITY CONNECTIONNOT REQUIRED
MOUNTING METHODCLIP
CONNECTOR MANUFACTURER CODE97151
HEIGHT1.750 INCHES NOMINAL IN
CONNECTOR IDENTIFICATIONU-173/U
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
10909Interchangeable
interchangeable cross-reference
interchangeable
M133-00Interchangeable
interchangeable cross-reference
interchangeable
M133Interchangeable
interchangeable cross-reference
interchangeable
BL5/32Interchangeable
interchangeable cross-reference
interchangeable
6100288Interchangeable
interchangeable cross-reference
interchangeable
A-A-60010Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-B-539921?
SM-B-539921 is a MICROPHONE,DYNAMIC.
What parts can replace SM-B-539921?
There are 16 known substitutes for SM-B-539921: 10909, M133-00, M133 and 13 more. Substitute compatibility should be verified for your specific system.
Is SM-B-539921 still available?
SM-B-539921 is currently cancelled.
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