High temperature 12 A SCRs

Available in standard gate triggering levels, the TN1205H SCR series has very high switching capability up to junction temperature of 150 °C.

These products fit all modes of control found in applications such as overvoltage crowbar protection, motor control circuits in power tools and kitchen aids, inrush current limiting circuits, capacitive discharge ignition and voltage regulation circuits.

These products are particulary adapted for use in areas where the ambient temperature is high or the ventilation low, or where an increase of power density is required.

Through-hole or surface-mount packages provide performance in a limited space area.

Key Features

  • High junction temperature: Tj = 150 °C
  • Medium current SCRs
  • High noise immunity up to 150 °C
  • RoHS (2002/95/EC) compliant
  • 600 V VDRM , VRRM


Technical Documentation

Product Specifications
Description Version Size
DS7117 DS7117: High temperature 12 A SCRs 4.1 122 KB
Application Notes
Description Version Size
AN4993 AN4993: How to implement a SCR or a Triac in a hybride relay application 1.1 991 KB
AN4606 AN4606: Inrush-current limiter circuits (ICL) with Triacs and Thyristors (SCR) and controlled bridge design tips 2.1 1008 KB
AN2703 AN2703: Parameter list for SCRs, TRIACs, AC switches, and DIACS 2.5 99 KB
Technical Notes & Articles
Description Version Size
TN1173 TN1173: Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches 5.0 1 MB

HW Model, CAD Libraries & SVD

HW Model, CAD Libraries & SVD
Description Version Size
High-temperature SCRs PSpice model (.lib) and symbols (.olb) 2.0 11 KB

Publications and Collaterals

Description Version Size
Automotive-grade 1200 V SCR for AC/DC converter applications 1.0 955 KB
Automotive-grade 1200 V, 30 & 60 A standard diodes for input bridge circuits 1.0 753 KB
ST Thyristor Finder: SCRs and Triacs on Android and iOS 1.0 854 KB
Selection Guides
Description Version Size
Thyristors, Triacs, AC switches and A.S.D™ selection guide 2.0 1 MB

Tools and Software

Development Tools
Software Development Tools
Support & Community

Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity Junction Temperature (°C) (max) ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
TN1205H-6T TO-220AB Tube Active 0.374 10 150 NEC EAR99 CHINA MORE INFO No availability reported, please contact our Sales office
TN1205H-6G D2PAK Tube Active 0.401 10 150 NEC EAR99 CHINA MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TN1205H-6T ActiveTO-220AB-Ecopack2 (**) 0 0
TN1205H-6G-TR ActiveD2PAK-Ecopack2 (**) 0 0
TN1205H-6G ActiveD2PAK-Ecopack2 (**) 0 0

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.