PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1N5866BSemiconductor Device,diode

Freescale Semiconductor, Inc. · NSN 5961-01-043-4784 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-043-4784 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-043-4784. Primary manufacturer part number: 1N5866B.
Features
  • Semiconductor Device,diode — FSC 5961
  • Material: GLASS ENCLOSURE
  • Material: SILICON SEMICONDUCTOR
  • Power Rating Per Characteristic: 500.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
  • Features Provided: HERMETICALLY SEALED CASE
  • Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS CASE DEGC
  • Current Rating Per Characteristic: 6.20 MILLIAMPERES NOMINAL VOLTAGE REGULATOR DIODE CURRENT
  • Terminal Length: 0.500 INCHES MINIMUM IN
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
  • Applications requiring Glass Enclosure construction
General Description

The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-043-4784, is classified within Federal Supply Class 5961 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Freescale Semiconductor, Inc.. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-043-4784
Primary Part Number1N5866B
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerFreescale Semiconductor, Inc.
StatusACTIVE
MaterialGLASS ENCLOSURE
MaterialSILICON SEMICONDUCTOR
Power Rating Per Characteristic500.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Features ProvidedHERMETICALLY SEALED CASE
Maximum Operating Temp Per Measurement Point150.0 CELSIUS CASE DEGC
Current Rating Per Characteristic6.20 MILLIAMPERES NOMINAL VOLTAGE REGULATOR DIODE CURRENT
Terminal Length0.500 INCHES MINIMUM IN
Voltage Rating in Volts Per Characteristic20.0 NOMINAL NOMINAL REGULATOR VOLTAGE
Voltage Tolerance in Percent-0.5 TO 0.5
Mounting MethodTERMINAL
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Function for Which DesignedZENER DIODE
Specification/standard Data80131-RELEASE 6447 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5961-01-050-4855 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-082-8967 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-082-8968 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-082-8970 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-082-8971 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-089-2024 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-089-2204 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-142-7898 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-167-1545 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-256-3145 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
1N5866B Freescale Semiconductor, Inc. (USA)
386-0191-000 Hbc Solutions, Inc. Dba Harris Broadcast (USA)
RELEASE 6447 Electronic Industries Association
1N5866B Electronic Industries Association
Related Parts
5961-01-050-4855INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-082-8967INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-082-8968INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-082-8970INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-082-8971INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-089-2024INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-089-2204INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-142-7898INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-167-1545INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-256-3145INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-01-043-4784?

NSN 5961-01-043-4784 is a Semiconductor Device,diode, manufactured by Freescale Semiconductor, Inc., classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-043-4784?

NSN 5961-01-043-4784 has 4 cross-referenced part numbers: 1N5866B (Freescale Semiconductor, Inc.), 386-0191-000 (Hbc Solutions, Inc. Dba Harris Broadcast), RELEASE 6447 (Electronic Industries Association), 1N5866B (Electronic Industries Association).

What NSN replaces 5961-01-043-4784?

There are 10 known substitutes for 5961-01-043-4784: 5961-01-050-4855, 5961-01-082-8967, 5961-01-082-8968 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1N5866B?

Key specifications for 1N5866B: Material: GLASS ENCLOSURE; Material: SILICON SEMICONDUCTOR; Power Rating Per Characteristic: 500.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION; Features Provided: HERMETICALLY SEALED CASE. 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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