PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

E1B5TRB160Transistor

Varian Associates Inc Communications Transistor Div · NSN 5961-01-143-0306 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-143-0306 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-143-0306. Primary manufacturer part number: E1B5TRB160.
Features
  • Transistor — FSC 5961
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material: CERAMIC ENCLOSURE
  • Terminal Type and Quantity: 4 RIBBON AND 1 THREADED STUD
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Features Provided: GOLD PLATED LEADS AND HERMETICALLY SEALED CASE
  • Power Rating Per Characteristic: 5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
  • Voltage Rating in Volts Per Characteristic: 50.0 NOMINAL COLLECTOR TO EMITTER VOLTAGE, DC WITH BASE SHORT-CIRCUITED TO EMITTER AND 4.0 NOMINAL EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Applications
  • Applications requiring Ceramic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-01-143-0306, 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 Varian Associates Inc Communications Transistor Div. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5961-01-143-0306
Primary Part NumberE1B5TRB160
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerVarian Associates Inc Communications Transistor Div
StatusACTIVE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialCERAMIC ENCLOSURE
Terminal Type and Quantity4 RIBBON AND 1 THREADED STUD
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Features ProvidedGOLD PLATED LEADS AND HERMETICALLY SEALED CASE
Power Rating Per Characteristic5.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Voltage Rating in Volts Per Characteristic50.0 NOMINAL COLLECTOR TO EMITTER VOLTAGE, DC WITH BASE SHORT-CIRCUITED TO EMITTER AND 4.0 NOMINAL EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Mounting Facility Quantity1
Semiconductor MaterialSILICON
Overall Diameter0.204 INCHES NOMINAL IN
Nominal Thread Size0.160 INCHES IN
Mounting MethodTHREADED STUD(S)
Current Rating Per Characteristic0.250 AMPERES NOMINAL COLLECTOR CURRENT, DC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5930-00-622-406340575-2 INTERCHANGEABLE
Switch,sensitive
Honeywell International Inc. Div Aerospace - Torrance
4720-01-474-3486D3081 INTERCHANGEABLE
Hose Assembly,nonmetallic
Delafield Corp Dba Delafield Fluid Technologies
Cross-Reference Index
Part NumberManufacturer
405752 Aimtron Systems, Llc (USA)
E1B5TRB160 PRIMARY Varian Associates Inc Communications Transistor Div (USA)
405752 Cardion Inc (USA)
Related Parts
5930-00-622-4063INTERCHANGEABLE
SWITCH,SENSITIVE
40575-2
4720-01-474-3486INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
D3081

Frequently Asked Questions

What is NSN 5961-01-143-0306?

NSN 5961-01-143-0306 is a Transistor, manufactured by Varian Associates Inc Communications Transistor Div, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-143-0306?

NSN 5961-01-143-0306 has 3 cross-referenced part numbers: 405752 (Aimtron Systems, Llc), E1B5TRB160 (Varian Associates Inc Communications Transistor Div), 405752 (Cardion Inc).

What NSN replaces 5961-01-143-0306?

There are 2 known substitutes for 5961-01-143-0306: 5930-00-622-4063, 4720-01-474-3486. Verify interchangeability with system specifications before substitution.

What are the specifications of E1B5TRB160?

Key specifications for E1B5TRB160: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material: CERAMIC ENCLOSURE; Terminal Type and Quantity: 4 RIBBON AND 1 THREADED STUD; Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC. 15 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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