PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1853-0553Transistor

Keysight Technologies Inc · NSN 5961-01-339-1565 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-339-1565 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-339-1565. Primary manufacturer part number: 1853-0553.
Features
  • Transistor — FSC 5961
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Function for Which Designed: MICROWAVE
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION DEGC
  • Current Rating Per Characteristic: 25.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Overall Diameter: 0.220 INCHES NOMINAL IN
  • Transfer Ratio: 25.0 MINIMUM SMALL-SIGNAL SHORT-CIRCUIT FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
  • Voltage Rating in Volts Per Characteristic: 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-339-1565, 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 Keysight Technologies Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-339-1565
Primary Part Number1853-0553
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusACTIVE
Terminal Length0.500 INCHES MINIMUM IN
Function for Which DesignedMICROWAVE
Maximum Operating Temp Per Measurement Point175.0 CELSIUS JUNCTION DEGC
Current Rating Per Characteristic25.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Overall Diameter0.220 INCHES NOMINAL IN
Transfer Ratio25.0 MINIMUM SMALL-SIGNAL SHORT-CIRCUIT FORWARD CURRENT TRANSFER RATIO, COMMON-EMITTER
Voltage Rating in Volts Per Characteristic20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN
Mounting MethodTERMINAL
Semiconductor MaterialSILICON
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-72
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Terminal Type and Quantity4 UNINSULATED WIRE LEAD
Power Rating Per Characteristic200.0 MILLIWATTS MAXIMUM TOTAL DEVICE DISSIPATION
Internal ConfigurationJUNCTION CONTACT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-00-189-2729SAE J513 4 010167B INTERCHANGEABLE
Nut,tube Coupling
Sae International Dba Sae International
5325-00-290-66171201-440-Z3C INTERCHANGEABLE
Stud,turnlock Fastener
Southco Inc
5950-01-099-3698240-1998-020 INTERCHANGEABLE
Coil,radio Frequency
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5961-01-158-4376 INTERCHANGEABLE
Transistor
4820-01-363-2095A440 INTERCHANGEABLE
Valve,safety Relief
Ausco Inc
Cross-Reference Index
Part NumberManufacturer
1853-0553 Hewlett-Packard Company Dba HP (USA)
A440 Philips Components (USA)
1853-0553 Keysight Technologies, Inc. (USA)
1853-0553 PRIMARY Keysight Technologies Inc (USA)
Related Parts
4730-00-189-2729INTERCHANGEABLE
NUT,TUBE COUPLING
SAE J513 4 010167B
5325-00-290-6617INTERCHANGEABLE
STUD,TURNLOCK FASTENER
1201-440-Z3C
5950-01-099-3698INTERCHANGEABLE
COIL,RADIO FREQUENCY
240-1998-020
5961-01-158-4376INTERCHANGEABLE
TRANSISTOR
4820-01-363-2095INTERCHANGEABLE
VALVE,SAFETY RELIEF
A440

Frequently Asked Questions

What is NSN 5961-01-339-1565?

NSN 5961-01-339-1565 is a Transistor, manufactured by Keysight Technologies Inc, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-339-1565?

NSN 5961-01-339-1565 has 4 cross-referenced part numbers: 1853-0553 (Hewlett-Packard Company Dba HP), A440 (Philips Components), 1853-0553 (Keysight Technologies, Inc.), 1853-0553 (Keysight Technologies Inc).

What NSN replaces 5961-01-339-1565?

There are 5 known substitutes for 5961-01-339-1565: 4730-00-189-2729, 5325-00-290-6617, 5950-01-099-3698 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1853-0553?

Key specifications for 1853-0553: Special Features: JUNCTION PATTERN ARRANGEMENT: PNP; Terminal Length: 0.500 INCHES MINIMUM IN; Function for Which Designed: MICROWAVE; Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION DEGC. 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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