PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SL3977Microcircuit,digital

Fairchild Semiconductor Corp · NSN 5962-00-208-6756 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-00-208-6756 — this item is cataloged by the U.S. Government under National Stock Number 5962-00-208-6756. Primary manufacturer part number: SL3977.
Features
  • Microcircuit,digital — FSC 5962
  • Precious Material and Location: TERMINAL SURFACES GOLD
  • Operating Temp Range: -0.0 TO 70.0 CELSIUS DEGC
  • Storage Temp Range: -55.0 TO 185.0 CELSIUS DEGC
  • Input Circuit Pattern: 3 INPUT
  • Design Function and Quantity: 1 FLIP-FLOP, J-K
  • Inclosure Configuration: CAN
  • Inclosure Material: METAL
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,digital, cataloged under National Stock Number 5962-00-208-6756, is classified within Federal Supply Class 5962 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Fairchild Semiconductor Corp. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5962-00-208-6756
Primary Part NumberSL3977
Item NameMicrocircuit,digital
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerFairchild Semiconductor Corp
StatusACTIVE
Precious Material and LocationTERMINAL SURFACES GOLD
Operating Temp Range-0.0 TO 70.0 CELSIUS DEGC
Storage Temp Range-55.0 TO 185.0 CELSIUS DEGC
Input Circuit Pattern3 INPUT
Design Function and Quantity1 FLIP-FLOP, J-K
Inclosure ConfigurationCAN
Inclosure MaterialMETAL
Precious MaterialGOLD
Body Outside Diameter0.430 INCHES MAXIMUM IN
Test Data Document13499-351-7121 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Output Logic FormRESISTOR-TRANSISTOR LOGIC
Features ProvidedW/CLOCK AND POSITIVE OUTPUTS AND W/RESISTOR
Body Height0.250 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5962-00-436-1758 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
SL3977 Fairchild Semiconductor Corp (USA)
351-7121-010 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
923HC Fairchild Semiconductor Corp (USA)
Related Parts
5962-00-436-1758INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 5962-00-208-6756?

NSN 5962-00-208-6756 is a Microcircuit,digital, manufactured by Fairchild Semiconductor Corp, classified under FSC 5962 (No Item Name Available). Status: active.

What are the part numbers for NSN 5962-00-208-6756?

NSN 5962-00-208-6756 has 3 cross-referenced part numbers: SL3977 (Fairchild Semiconductor Corp), 351-7121-010 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 923HC (Fairchild Semiconductor Corp).

What NSN replaces 5962-00-208-6756?

There is 1 known substitute for 5962-00-208-6756: 5962-00-436-1758. Verify interchangeability with system specifications before substitution.

What are the specifications of SL3977?

Key specifications for SL3977: Precious Material and Location: TERMINAL SURFACES GOLD; Operating Temp Range: -0.0 TO 70.0 CELSIUS DEGC; Storage Temp Range: -55.0 TO 185.0 CELSIUS DEGC; Input Circuit Pattern: 3 INPUT. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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