PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K684Semiconductor Device,diode

Mercury Commercial Electronics, Inc. Dba Micronetics · NSN 5961-00-851-8296 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-851-8296 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-851-8296. Primary manufacturer part number: K684.
Features
  • Semiconductor Device,diode — FSC 5961
  • Voltage Tolerance in Percent: -5.0 TO 5.0
  • Specification/standard Data: 81349-MIL-S-19500/117 GOVERNMENT SPECIFICATION
  • Features Provided: HERMETICALLY SEALED CASE
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS AMBIENT AIR DEGC
  • Function for Which Designed: ZENER DIODE
  • Power Rating Per Characteristic: 400.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
  • Voltage Rating in Volts Per Characteristic: 18.0 NOMINAL NOMINAL REGULATOR VOLTAGE
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 5961-00-851-8296, 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 Mercury Commercial Electronics, Inc. Dba Micronetics. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 16 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-851-8296
Primary Part NumberK684
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMercury Commercial Electronics, Inc. Dba Micronetics
StatusCANCELLED
Voltage Tolerance in Percent-5.0 TO 5.0
Specification/standard Data81349-MIL-S-19500/117 GOVERNMENT SPECIFICATION
Features ProvidedHERMETICALLY SEALED CASE
Maximum Operating Temp Per Measurement Point175.0 CELSIUS AMBIENT AIR DEGC
Function for Which DesignedZENER DIODE
Power Rating Per Characteristic400.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Voltage Rating in Volts Per Characteristic18.0 NOMINAL NOMINAL REGULATOR VOLTAGE
Terminal Length1.000 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
Overall Diameter0.092 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Mounting MethodTERMINAL
Current Rating Per Characteristic21.00 MILLIAMPERES MAXIMUM VOLTAGE REGULATOR DIODE CURRENT
Test Data Document81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MaterialGLASS ENCLOSURE
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
MaterialSILICON SEMICONDUCTOR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5961-00-051-7448 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-108-4449L00977 INTERCHANGEABLE
Semiconductor Device,diode
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
5961-00-200-9327L01044 INTERCHANGEABLE
Semiconductor Device,diode
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
5961-00-241-3600353-3178-001 INTERCHANGEABLE
Semiconductor Device,diode
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5961-00-400-5377 INTERCHANGEABLE
Semiconductor Device,diode
1680-00-571-0667327973 INTERCHANGEABLE
Lever,remote Control
Honeywell International Inc Div Aerospace-South Bend (bendix Dr)
5306-00-576-1364327973 INTERCHANGEABLE
Bolt,shoulder
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5961-00-830-4918 INTERCHANGEABLE
Semiconductor
5961-00-988-7178 INTERCHANGEABLE
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5961-01-042-81732877245 INTERCHANGEABLE
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Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
K684 Mercury Commercial Electronics, Inc. Dba Micronetics (USA)
4439728107 Thales Deutschland Gmbh Div Customer Services (DEU)
1N1935 Electronic Industries Association
4178600-101 Raytheon Company Dba Raytheon (USA)
353-3089-000 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
1N967 Freescale Semiconductor, Inc. (USA)
JAN1N967B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-S-19500/117C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1N967B Navcom Defense Electronics, Inc. (USA)
352180A Qes Ltd (quality Electronic Services) (GBR)
947060-9672 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
1N967B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
327973 Fluke Corp (USA)
418036-6 Raytheon Company Dba Raytheon (USA)
20-01024-001 Raytheon Company (USA)
4178600-101 Raytheon Company Div Rmd Strategic (USA)
J1N967B Freescale Semiconductor, Inc. (USA)
1076-310 Bae Systems Information and Electronic Systems Integration Inc. (USA)
4036887P15 General Electric Co Mobile Communications Business Div (USA)
457-6013 Nimikkeistokeskus Ncb Finland (FIN)
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Frequently Asked Questions

What is NSN 5961-00-851-8296?

NSN 5961-00-851-8296 is a Semiconductor Device,diode, manufactured by Mercury Commercial Electronics, Inc. Dba Micronetics, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-851-8296?

NSN 5961-00-851-8296 has 20 cross-referenced part numbers: K684 (Mercury Commercial Electronics, Inc. Dba Micronetics), 4439728107 (Thales Deutschland Gmbh Div Customer Services), 1N1935 (Electronic Industries Association), 4178600-101 (Raytheon Company Dba Raytheon), 353-3089-000 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems) and 15 more.

What NSN replaces 5961-00-851-8296?

There are 12 known substitutes for 5961-00-851-8296: 5961-00-051-7448, 5961-00-108-4449, 5961-00-200-9327 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K684?

Key specifications for K684: Overall Length: 0.230 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN; Voltage Tolerance in Percent: -5.0 TO 5.0; Specification/standard Data: 81349-MIL-S-19500/117 GOVERNMENT SPECIFICATION; Features Provided: HERMETICALLY SEALED CASE. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-851-8296 still in active supply?

NSN 5961-00-851-8296 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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