NSN 5961-01-642-1740 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-642-1740. Manufacturer of record part number: MMBZ5221B.
Also searched as5961-01-642-1740 ·
5961016421740 ·
NIIN 016421740 ·
01-642-1740 ·
FSC 5961 Semiconductor Devices and Associated Hardware · CAGE 0S3T0 · MMBZ5221B
Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC
Function for Which Designed: ZENER DIODE
Material: PLASTIC ENCLOSURE
Terminal Type and Quantity: 3 PIN
Power Rating Per Characteristic: 350.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
1 manufacturer part number on file
Manufacturer of record: Fairchilds Inc
Identification
NSN: 5961-01-642-1740
NIIN: 016421740
FSC: 5961 — Semiconductor Devices and Associated Hardware
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: MMBZ5221B
Manufacturer: Fairchilds Inc
General Description
The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-642-1740, is classified within Federal Supply Class 5961 (Semiconductor Devices and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Fairchilds Inc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5961-01-642-1740
Primary Part Number
MMBZ5221B
Item Name
Semiconductor Device,diode
FSC / FSG
5961 / 59 — Semiconductor Devices and Associated Hardware
Other items in FSC 5961 — Semiconductor Devices and Associated Hardware
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5961-00-000-0150
RECTIFIER,SEMICONDUCTOR DEVICE,U
5961-00-000-4541
5961-00-000-4541 · Item name not on file
5961-00-000-5400
5961-00-000-5400 · Item name not on file
5961-00-000-7614
5961-00-000-7614 · Item name not on file
5961-00-000-8760
5961-00-000-8760 · Item name not on file
5961-00-001-1352
5961-00-001-1352 · Item name not on file
5961-00-001-2624
5961-00-001-2624 · Item name not on file
5961-00-001-2978
SEMICONDUCTOR DEVICE,DIODE
Frequently Asked Questions
What is NSN 5961-01-642-1740?
NSN 5961-01-642-1740 is a Semiconductor Device,diode, manufactured by Fairchilds Inc, classified under FSC 5961, Semiconductor Devices and Associated Hardware. Status: active.
What part numbers are listed for NSN 5961-01-642-1740?
NSN 5961-01-642-1740 has 1 manufacturer part number on file: MMBZ5221B (Fairchilds Inc).
What are the specifications of MMBZ5221B?
Key specifications for MMBZ5221B: Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC; Function for Which Designed: ZENER DIODE; Part Name Assigned by Controlling Agency: ZENER DIODE; Material: PLASTIC ENCLOSURE. 5 specifications are documented in the U.S. Government catalog.
Is NSN 5961-01-642-1740 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.