PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4049BFMQBMicrocircuit,digital

Fairchild Semiconductor Corp · NSN 5962-01-203-3398 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-203-3398 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-203-3398. Primary manufacturer part number: 4049BFMQB.
Features
  • Microcircuit,digital — FSC 5962
  • Output Logic Form: COMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
  • Inclosure Material: CERAMIC
  • Input Circuit Pattern: HEX 1 INPUT
  • Voltage Rating and Type Per Characteristic: 18.0 VOLTS MAXIMUM POWER SOURCE
  • Body Length: 0.371 INCHES MINIMUM AND 0.409 INCHES MAXIMUM IN
  • Body Width: 0.247 INCHES MINIMUM AND 0.283 INCHES MAXIMUM IN
  • Design Function and Quantity: 6 BUFFER, INVERTING
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,digital, cataloged under National Stock Number 5962-01-203-3398, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5962-01-203-3398
Primary Part Number4049BFMQB
Item NameMicrocircuit,digital
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerFairchild Semiconductor Corp
StatusACTIVE
Output Logic FormCOMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC
Inclosure MaterialCERAMIC
Input Circuit PatternHEX 1 INPUT
Voltage Rating and Type Per Characteristic18.0 VOLTS MAXIMUM POWER SOURCE
Body Length0.371 INCHES MINIMUM AND 0.409 INCHES MAXIMUM IN
Body Width0.247 INCHES MINIMUM AND 0.283 INCHES MAXIMUM IN
Design Function and Quantity6 BUFFER, INVERTING
Storage Temp Range-65.0 TO 150.0 CELSIUS DEGC
Features ProvidedHERMETICALLY SEALED AND HIGH CURRENT AND ELECTROSTATIC SENSITIVE
Test Data Document96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
Terminal Surface TreatmentSOLDER
Body Height0.060 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Terminal Type and Quantity16 FLAT LEADS
Inclosure ConfigurationFLAT PACK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5962-01-195-4643971703-0411 INTERCHANGEABLE
Microcircuit,digital
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5962-01-436-7834 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
CD4049UBK/3 Renesas Electronics America Inc (USA)
4049BFMQB PRIMARY Fairchild Semiconductor Corp (USA)
Related Parts
5962-01-195-4643INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
971703-0411
5962-01-436-7834INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 5962-01-203-3398?

NSN 5962-01-203-3398 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 5962-01-203-3398?

NSN 5962-01-203-3398 has 2 cross-referenced part numbers: CD4049UBK/3 (Renesas Electronics America Inc), 4049BFMQB (Fairchild Semiconductor Corp).

What NSN replaces 5962-01-203-3398?

There are 2 known substitutes for 5962-01-203-3398: 5962-01-195-4643, 5962-01-436-7834. Verify interchangeability with system specifications before substitution.

What are the specifications of 4049BFMQB?

Key specifications for 4049BFMQB: Output Logic Form: COMPLEMENTARY-METAL OXIDE-SEMICONDUCTOR LOGIC; Inclosure Material: CERAMIC; Input Circuit Pattern: HEX 1 INPUT; Special Features: TTL COMPATIBLE. 16 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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