PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

221G3128-1-1Microcircuit,digital

Herley Chicago Dba Stewart Warner Electronics · NSN 5962-00-147-4530 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-00-147-4530 — this item is cataloged by the U.S. Government under National Stock Number 5962-00-147-4530. Primary manufacturer part number: 221G3128-1-1.
Features
  • Microcircuit,digital — FSC 5962
  • Case Outline Source and Designator: T0-116 JOINT ELECTRON DEVICE ENGINEERING COUNCIL
  • Body Height: 0.140 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
  • Test Data Document: 98738-221G3128 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)
  • Voltage Rating and Type Per Characteristic: 5.5 VOLTS MAXIMUM POWER SOURCE
  • Terminal Surface Treatment: SOLDER
  • Design Function and Quantity: 1 MULTIVIBRATOR, MONOSTABLE
  • Features Provided: HERMETICALLY SEALED AND MONOLITHIC AND EDGE TRIGGERED AND COMPLEMENTARY OUTPUTS AND POSITIVE OUTPUTS
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,digital, cataloged under National Stock Number 5962-00-147-4530, 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 Herley Chicago Dba Stewart Warner Electronics. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 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
NSN5962-00-147-4530
Primary Part Number221G3128-1-1
Item NameMicrocircuit,digital
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerHerley Chicago Dba Stewart Warner Electronics
StatusACTIVE
Case Outline Source and DesignatorT0-116 JOINT ELECTRON DEVICE ENGINEERING COUNCIL
Body Height0.140 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
Test Data Document98738-221G3128 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)
Voltage Rating and Type Per Characteristic5.5 VOLTS MAXIMUM POWER SOURCE
Terminal Surface TreatmentSOLDER
Design Function and Quantity1 MULTIVIBRATOR, MONOSTABLE
Features ProvidedHERMETICALLY SEALED AND MONOLITHIC AND EDGE TRIGGERED AND COMPLEMENTARY OUTPUTS AND POSITIVE OUTPUTS
Operating Temp Range+0.0 TO 70.0 CELSIUS DEGC
Input Circuit Pattern3 INPUT
Inclosure MaterialCERAMIC AND GLASS
Output Logic FormTRANSISTOR-TRANSISTOR LOGIC
Maximum Power Dissipation Rating90.0 MILLIWATTS
Body Length0.660 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
Storage Temp Range-65.0 TO 150.0 CELSIUS DEGC
Terminal Type and Quantity14 PRINTED CIRCUIT
Body Width0.220 INCHES MINIMUM AND 0.280 INCHES MAXIMUM IN
Inclosure ConfigurationDUAL-IN-LINE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5962-00-369-7706 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
221G3128-1-1 Texas Instruments Incorporated (USA)
MC74121L Freescale Semiconductor, Inc. (USA)
MIC74121J Itt Semiconductors Div (USA)
SN74121J-00 Texas Instruments Incorporated (USA)
SW74121J Stewart-Warner Corp Microcircuits Div (USA)
221G3128-1-1 PRIMARY Herley Chicago Dba Stewart Warner Electronics (USA)
221G3128-1-1 Stewart-Warner Corp Microcircuits Div (USA)
221G3128-1-1 Itt Semiconductors Div (USA)
221G3128-1-1 Freescale Semiconductor, Inc. (USA)
Related Parts
5962-00-369-7706INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 5962-00-147-4530?

NSN 5962-00-147-4530 is a Microcircuit,digital, manufactured by Herley Chicago Dba Stewart Warner Electronics, classified under FSC 5962 (No Item Name Available). Status: active.

What are the part numbers for NSN 5962-00-147-4530?

NSN 5962-00-147-4530 has 9 cross-referenced part numbers: 221G3128-1-1 (Texas Instruments Incorporated), MC74121L (Freescale Semiconductor, Inc.), MIC74121J (Itt Semiconductors Div), SN74121J-00 (Texas Instruments Incorporated), SW74121J (Stewart-Warner Corp Microcircuits Div) and 4 more.

What NSN replaces 5962-00-147-4530?

There is 1 known substitute for 5962-00-147-4530: 5962-00-369-7706. Verify interchangeability with system specifications before substitution.

What are the specifications of 221G3128-1-1?

Key specifications for 221G3128-1-1: Case Outline Source and Designator: T0-116 JOINT ELECTRON DEVICE ENGINEERING COUNCIL; Body Height: 0.140 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN; Test Data Document: 98738-221G3128 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); Voltage Rating and Type Per Characteristic: 5.5 VOLTS MAXIMUM POWER SOURCE. 17 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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