PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21816Transistor

Smiths Aerospace, Inc., Electronic Systems-Grand Rapids · NSN 5961-01-020-4572 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-020-4572 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-020-4572. Primary manufacturer part number: 21816.
Features
  • Transistor — FSC 5961
  • Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC
  • Mounting Facility Quantity: 1
  • Internal Configuration: JUNCTION CONTACT
  • Semiconductor Material: SILICON
  • Mounting Method: UNTHREADED HOLE(S) AND TERMINAL
  • Voltage Rating in Volts Per Characteristic: 80.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC AND 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE, DC AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
  • Current Rating Per Characteristic: 25.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 5.00 AMPERES MAXIMUM BASE CURRENT, DC
Applications
  • Applications requiring Plastic Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-01-020-4572, 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 Smiths Aerospace, Inc., Electronic Systems-Grand Rapids. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-020-4572
Primary Part Number21816
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSmiths Aerospace, Inc., Electronic Systems-Grand Rapids
StatusACTIVE
Maximum Operating Temp Per Measurement Point150.0 CELSIUS JUNCTION DEGC
Mounting Facility Quantity1
Internal ConfigurationJUNCTION CONTACT
Semiconductor MaterialSILICON
Mounting MethodUNTHREADED HOLE(S) AND TERMINAL
Voltage Rating in Volts Per Characteristic80.0 MAXIMUM COLLECTOR TO BASE VOLTAGE, DC AND 80.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE, DC AND 5.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Current Rating Per Characteristic25.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC AND 5.00 AMPERES MAXIMUM BASE CURRENT, DC
Power Rating Per Characteristic125.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Terminal Type and Quantity3 PIN
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-247
MaterialPLASTIC ENCLOSURE
Terminal Length0.500 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-275-1419 INTERCHANGEABLE
Nut,self-Locking,hexagon
5330-00-430-199140999-2614 INTERCHANGEABLE
Packing Assembly
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
6625-00-492-9002 INTERCHANGEABLE
Slotted Line,coaxial
5340-00-623-542221816 INTERCHANGEABLE
Bracket,main
Mason Electric Co. Dba Mason Controls
6670-01-545-9808218-16 INTERCHANGEABLE
Weight Set,balance
Ohaus Corporation
4730-01-567-3785 INTERCHANGEABLE
Adapter and Flange Assembly
6630-01-592-25861023237 INTERCHANGEABLE
Lens,hematology Analyzer
Beckman Coulter Inc Div Us Customer Operations
Cross-Reference Index
Part NumberManufacturer
TIP35B Freescale Semiconductor, Inc. (USA)
ECG392 Philips Ecg Inc Div of North American Philips Corp (USA)
392 Nte Electronics, Inc (USA)
TIP35B Texas Instruments Incorporated (USA)
NTE392 Nte Electronics, Inc (USA)
TIP35B Advanced Semiconductor,inc. Dba Advanced Semiconductor Inc (USA)
21816 PRIMARY Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)
ECG392 Philips Ecg Inc Div of North American Philips Corp (USA)
Related Parts
5310-00-275-1419INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5330-00-430-1991INTERCHANGEABLE
PACKING ASSEMBLY
40999-2614
6625-00-492-9002INTERCHANGEABLE
SLOTTED LINE,COAXIAL
5340-00-623-5422INTERCHANGEABLE
BRACKET,MAIN
21816
6670-01-545-9808INTERCHANGEABLE
WEIGHT SET,BALANCE
218-16
4730-01-567-3785INTERCHANGEABLE
ADAPTER AND FLANGE ASSEMBLY
6630-01-592-2586INTERCHANGEABLE
LENS,HEMATOLOGY ANALYZER
1023237

Frequently Asked Questions

What is NSN 5961-01-020-4572?

NSN 5961-01-020-4572 is a Transistor, manufactured by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-020-4572?

NSN 5961-01-020-4572 has 8 cross-referenced part numbers: TIP35B (Freescale Semiconductor, Inc.), ECG392 (Philips Ecg Inc Div of North American Philips Corp), 392 (Nte Electronics, Inc), TIP35B (Texas Instruments Incorporated), NTE392 (Nte Electronics, Inc) and 3 more.

What NSN replaces 5961-01-020-4572?

There are 7 known substitutes for 5961-01-020-4572: 5310-00-275-1419, 5330-00-430-1991, 6625-00-492-9002 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21816?

Key specifications for 21816: Maximum Operating Temp Per Measurement Point: 150.0 CELSIUS JUNCTION DEGC; Mounting Facility Quantity: 1; Overall Height: 0.195 INCHES MAXIMUM IN; Internal Configuration: JUNCTION CONTACT. 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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