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STMicroelectronics T1235H-600G
- Part No.:
- T1235H-600G
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
T1235H-600G.pdf
- Description:
- TRIAC ALTERNISTOR 600V 12A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,175
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Product details
Overview
T1235H-600G from STMicroelectronics is a snubberless 12 A, 600 V triac designed for high-temperature AC power control in cooking appliances (ovens, hobs, coffee machines) and electric heaters. It features 35 mA gate trigger current, 1.55 V max on-state voltage at 17 A, and D2PAK package with 1.2 °C/W junction-to-case thermal resistance.
For engineers reviewing the T1235H-600G datasheet, T1235H-600G pinout, T1235H-600G application, or T1235H-600G equivalent, key selection criteria include RMS current rating (12 A @ 135°C case), surge capability (140 A, 20 ms), dV/dt immunity (300 V/µs @ 150°C), and high-temperature operation up to 150°C junction.
Technical Context
This triac operates in all four quadrants (I–III) with symmetrical triggering characteristics and no external snubber required due to ST's proprietary snubberless architecture. Its high commutation robustness is enabled by ≥300 V/µs dV/dt immunity and ≥5.3 A/ms critical rate of decrease of on-state current at 150°C junction temperature.
The device uses clip-bond assembly for enhanced surge current handling (145 A at 60 Hz, 16.7 ms) and achieves low conduction loss via 0.80 V threshold voltage and 25 mΩ dynamic resistance at 150°C - enabling compact heatsink design in space-constrained hot-appliance environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 12 A at Tc = 135°C - supports continuous AC load switching without derating in oven/hob thermal environments |
| VDRM/VRRM | 600 V - blocks full mains peak voltage (≈848 V) with safety margin for 230 VAC systems |
| IGT (Q1) | 35 mA max - compatible with standard microcontroller GPIO or optocoupler gate drivers |
| dV/dt | 300 V/µs min @ Tj = 150°C - eliminates false triggering in noisy high-temp appliance EMI environments |
| Rth(j-c) | 1.2 °C/W - enables direct mounting to small heatsinks with predictable thermal performance |
| ITSM | 140 A (50 Hz, 20 ms) - withstands inrush currents of heating elements and motor start-up surges |
| VGT | 1.3 V max - ensures reliable turn-on with low-voltage gate drive circuits |
Pinout & Package
D2PAK (TO-263) package: surface-mount, isolated tab, single-row 3-pin configuration with exposed metal pad for thermal and electrical connection to A2 terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate triggering; connected to load return path in phase-control circuits |
| A2 (MT2) | Main Terminal 2 | High-side main current path; electrically tied to exposed tab for thermal conduction and circuit grounding |
| G | Gate | Control input for bidirectional conduction initiation; triggers in all four quadrants with ≤35 mA |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless operation | Eliminates external RC snubber components, reducing BOM count and PCB area in AC dimming/control designs |
| High-temperature rating | Junction range –40°C to +150°C enables direct placement near heating elements without thermal throttling |
| Enhanced surge handling | 145 A non-repetitive surge (60 Hz, 16.7 ms) supports repeated heater cycling without degradation |
| Low on-state loss | 1.55 V VT(max) at 17 A reduces conduction heating, allowing smaller heatsinks than legacy triacs |
| ECOPACK® compliance | Lead-free second-level interconnect meets RoHS and JEDEC JESD97 marking requirements |
Applications
| Oven Temperature Control | Hob Power Regulation |
|---|---|
Use Scenario: Precise duty-cycle modulation of resistive heating elements in convection ovens to maintain ±1°C setpoint accuracy over 200–250°C operating range. IC Role / Device Role / Timing Role: Bidirectional AC switch controlling power delivery to heating coil; triggered synchronously with zero-crossing detection. Use Value: High dV/dt immunity prevents misfiring during thermal cycling-induced EMI; 150°C junction rating avoids derating near cavity walls. | Use Scenario: Phase-angle control of induction-compatible radiant zones in ceramic hobs, supporting rapid ramp-up and hold modes. IC Role / Device Role / Timing Role: Main power switch in discrete AC controller IC interface; driven by optocoupled gate driver with adjustable delay. Use Value: 140 A surge rating handles repeated cold-start surges of 1.8 kW zones; D2PAK thermal resistance enables direct copper pour heatsinking. |
| Coffee Machine Brew Cycle | Electric Heater Fan-Assisted Output |
Use Scenario: On/off and proportional control of boiler heating element during 92–96°C brew phase and steam generation (110–120°C). IC Role / Device Role / Timing Role: High-reliability AC switch interfaced with thermistor feedback loop and MCU PWM timing logic. Use Value: 35 mA IGT ensures compatibility with low-power isolation drivers; 12 A RMS rating sustains 1500 W continuous load at elevated ambient. | Use Scenario: Duty-cycled power delivery to PTC heating elements in forced-air space heaters, operating continuously at 40–70°C ambient. IC Role / Device Role / Timing Role: Primary AC power switch in fan-cooled thermal management system with overtemperature lockout. Use Value: Clip-bond construction maintains surge integrity after 10,000+ thermal cycles; Rth(j-c) = 1.2 °C/W allows passive heatsinking under fan airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac-based AC power control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTB12-600CW | 12 A, 600 V, TO-220AB, IGT = 50 mA, Rth(j-c) = 1.5 °C/W | Higher gate drive requirement; lower thermal efficiency limits use in ultra-compact oven modules | Select when TO-220AB through-hole mounting is mandatory and gate drive headroom >50 mA is available |
| T1235H-600T | Identical electrical specs, TO-220AB package, same 35 mA IGT, Rth(j-c) = 1.5 °C/W | Larger footprint and higher thermal resistance require larger heatsink; not suitable for dense SMT layouts | Choose only for legacy board rework or where D2PAK reflow process is unavailable |
Compared with BTB12-600CW and T1235H-600T, the T1235H-600G delivers superior thermal performance (1.2 vs. 1.5 °C/W) and space savings in SMT oven control boards, while maintaining identical voltage/current ratings and gate sensitivity - making it optimal for next-generation compact, high-reliability cooking appliances.
Availability
T1235H-600G is available at Aetrix Electronics and suitable for oven temperature control, hob power regulation, coffee machine brew cycle management, and electric heater fan-assisted output requiring stable component supply across extended thermal cycles.
Supply support for T1235H-600G includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power management, analog, MEMS, and microcontrollers for industrial, automotive, and appliance markets.
The T1235H series belongs to ST's high-temperature snubberless triac product line, engineered specifically for reliable AC power switching in thermally demanding white-goods applications where ambient temperatures exceed 85°C.
FAQ
What is the maximum junction temperature for continuous operation?
The T1235H-600G is rated for continuous operation up to +150°C junction temperature, validated per Table 3 Absolute Maximum Ratings. This enables direct placement near heating elements in ovens and hobs without thermal derating, provided case temperature remains ≤135°C per its 12 A RMS rating condition.
Does this triac require an external snubber circuit?
No. The T1235H-600G implements ST's proprietary snubberless technology, verified by ≥300 V/µs dV/dt immunity at 150°C and stable commutation across all quadrants without external RC networks - confirmed in Tables 4 and 5 of the official datasheet revision 6.
Can it be used with standard microcontroller GPIO for gate drive?
Yes - with IGT ≤35 mA and VGT ≤1.3 V, the T1235H-600G is compatible with most 3.3 V or 5 V MCU GPIOs when buffered by a 33 Ω series resistor (per Table 4 test condition), though optocoupled isolation is recommended for safety-critical AC mains interfaces.
What is the thermal resistance from junction to case, and how is it measured?
Rth(j-c) is 1.2 °C/W for the D2PAK package, measured under AC conditions per JEDEC JESD51-14 standards with the tab fully soldered to a 1 cm² copper area on FR4 PCB. This value assumes proper thermal via implementation and is specified in Table 6 of the datasheet.
T1235H-600G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- Snubberless™
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tube
- Product Status:
- Obsolete
- Triac Type:
- Alternistor - Snubberless
- Voltage - Off State:
- 600 V
- Current - On State (It (RMS)) (Max):
- 12 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 120A, 126A
- Current - Gate Trigger (Igt) (Max):
- 35 mA
- Current - Hold (Ih) (Max):
- 35 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
T1235H-600G FAQ
1.How can I place an order for T1235H-600G through Aetrix?
Please submit a Request for Quotation (RFQ) for T1235H-600G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for T1235H-600G reliable?
The price and inventory of T1235H-600G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T1235H-600G is usually 5 days.
3.What payment methods are accepted for T1235H-600G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T1235H-600G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T1235H-600G?
T1235H-600G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T1235H-600G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for T1235H-600G?
For technical support, including T1235H-600G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T1235H-600G requirements.
6.How does Aetrix verify that T1235H-600G is sourced from the original manufacturer or authorized distributors?
All T1235H-600G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that T1235H-600G meets industry standards.
7.What is the process for return or replacement of T1235H-600G?
All T1235H-600G units undergo pre-shipment inspection (PSI). If there is an issue with T1235H-600G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The T1235H-600G part is unused and in its original packaging.
Return procedure for T1235H-600G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T1235H-600G Tags
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Z0103NN5AA4
STMicroelectronics
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Z0107MNT1G
Littelfuse Inc.
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Z0103MNT1G
Littelfuse Inc.
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T405-800B-TR
STMicroelectronics
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T835-600B-TR
STMicroelectronics
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2N6073BG
Littelfuse Inc.
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2N6075BG
Littelfuse Inc.
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BTA08-600CWRG
STMicroelectronics
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T835H-6G-TR
STMicroelectronics
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BTA16-800BRG
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T1210-800G-TR
STMicroelectronics
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MAC4DHMT4G
Littelfuse Inc.
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