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STMicroelectronics T2535-600G-TR
- Part No.:
- T2535-600G-TR
- Manufacturer:
- STMicroelectronics
- Category:
- TRIACs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
T2535-600G-TR.pdf
- Description:
- TRIAC ALTERNISTOR 600V 25A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:1,175
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Product details
Overview
T2535-600G-TR from STMicroelectronics is a snubberless 3-quadrant triac in D²PAK package, rated for 25 A RMS on-state current and 600 V repetitive peak off-state voltage, with 35 mA maximum gate trigger current (IGT), designed for phase-controlled AC switching in lighting dimmers and motor speed controllers.
For engineers reviewing the T2535-600G-TR datasheet, T2535-600G-TR pinout, T2535-600G-TR application, or T2535-600G-TR equivalent, this part delivers high commutation robustness (dV/dt ≥ 500 V/µs, dI/dt ≥ 13 A/ms at 125 °C), low thermal resistance (Rth(j–c) = 0.8 °C/W), and UL1557 recognition - critical for reliable solid-state relay and industrial AC load control designs.
Technical Context
This triac operates in three quadrants (I, II, III) with snubberless capability, enabling simplified circuit design by eliminating external snubber networks. Its gate trigger threshold (VGT ≤ 1.3 V) and low holding current (IH ≤ 50 mA) ensure stable turn-on under noisy line conditions and low-power gate drive compatibility.
The device features high immunity to false triggering via robust dV/dt (≥500 V/µs) and dI/dt (≥13 A/ms) performance at junction temperatures up to 125 °C, supported by a low on-state voltage (VTM ≤ 1.55 V at 35 A, 25 °C) and dynamic resistance (RD ≤ 16 mΩ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 25 A - supports continuous AC load switching up to 6 kW at 240 VAC without forced cooling |
| VDRM / VRRM | 600 V - withstands peak line voltages in 230 VAC mains systems with 1.8× safety margin |
| IGT (max) | 35 mA - compatible with microcontroller GPIO or low-power optocoupler drivers (e.g., MOC3021) |
| dV/dt (min) | 500 V/µs - prevents false turn-on during fast transients in inductive loads like motors or transformers |
| Rth(j–c) | 0.8 °C/W - enables efficient heat transfer to heatsink; allows >20 W power dissipation at ΔT = 16 °C |
| VTM (max) | 1.55 V @ 35 A - limits conduction loss to <55 W at full RMS current, reducing thermal stress |
| UL Recognition | UL1557 file #81734 - certified for use in safety-critical static relays and industrial controls |
Pinout & Package
D²PAK (TO-263) surface-mount package with isolated tab; thermally optimized for PCB copper area mounting (Rth(j–a) = 45 °C/W with 2.5 cm² copper). Tab is electrically connected to MT2 (A2) terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 (MT1) | Main Terminal 1 | Reference terminal for gate trigger; connects to load return or neutral side of AC line |
| A2 (MT2) | Main Terminal 2 | High-side main current path; tab-connected terminal requiring heatsinking and isolation planning |
| G | Gate | Low-energy control input; triggers conduction when referenced to A1 with ≥35 mA pulse |
Key Features
| Feature | Design Value |
|---|---|
| Snubberless 3-quadrant operation | Eliminates need for RC snubber network in most inductive loads, reducing BOM count and board space |
| UL1557 recognition | Validated insulation and creepage/clearance compliance for Class I/II equipment in static relays |
| ECOPACK2 compliance | Halogen-free, RoHS-compliant molding compound meeting UL94 V0 flammability rating |
| Low Rth(j–c) | 0.8 °C/W enables direct heatsink mounting without thermal interface pads in medium-power applications |
| High dI/dt immunity | 13 A/ms minimum ensures reliable commutation in motor starting circuits with high inrush currents |
Applications
| Light Dimming Systems | Industrial Heating Control |
|---|---|
|
Use Scenario: Phase-angle controlled 230 VAC incandescent/halogen lamp dimming in residential and commercial fixtures. IC Role / Device Role / Timing Role: Main AC switching element triggered synchronously with zero-crossing detection to regulate RMS power delivered to lamp filament. Use Value: Snubberless operation avoids capacitor aging and failure in compact enclosed fixtures; 35 mA IGT enables direct drive from MCU GPIO via current-limiting resistor. |
Use Scenario: On/off and phase-control regulation of resistive heating elements in HVAC duct heaters and industrial ovens. IC Role / Device Role / Timing Role: High-reliability AC power switch interfaced with PID controller output to modulate thermal energy delivery. Use Value: 25 A RMS rating supports up to 5.7 kW loads; UL1557 certification satisfies safety requirements for Class 1 power circuits in HVAC equipment. |
| Motor Speed Controllers | Static Relay Modules |
|
Use Scenario: Single-phase induction motor speed control in fans, pumps, and compressors using phase-cut waveform shaping. IC Role / Device Role / Timing Role: Bidirectional AC switch activated per half-cycle to adjust effective voltage applied to motor windings. Use Value: dV/dt ≥ 500 V/µs prevents false triggering from back-EMF spikes during motor commutation; D²PAK package simplifies automated SMT assembly. |
Use Scenario: Solid-state replacement for electromechanical relays in PLC I/O modules and building automation panels. IC Role / Device Role / Timing Role: Isolated high-current AC output stage driven by optocoupled gate signal for noise-immune switching. Use Value: 0.8 °C/W thermal resistance allows sustained 25 A operation with minimal heatsink; tape-and-reel packaging (–TR) supports high-volume pick-and-place manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triac-based AC switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BTA24-600CWRG | TO-220AB insulated package; same 25 A / 600 V / 35 mA specs; higher Rth(j–c) = 1.7 °C/W | Requires larger heatsink or lower ambient; better suited for through-hole prototyping or lower-volume assemblies | Select when mechanical mounting constraints favor through-hole or when UL insulation barrier is mandatory |
| T2535-800G-TR | Same D²PAK package and 35 mA IGT, but rated for 800 V VDRM/VRRM | Supports 400 VAC industrial systems or 230 VAC with enhanced surge margin; slightly higher VTM (1.6 V) | Select when operating in high-surge environments (e.g., factory floor mains) or designing for global 100–277 VAC compatibility |
Compared with BTA24-600CWRG, T2535-600G-TR offers superior thermal performance and SMT scalability; versus T2535-800G-TR, it trades 200 V headroom for marginally lower conduction loss and cost - ideal for standard 230 VAC lighting and heating applications.
Availability
T2535-600G-TR is available at Aetrix Electronics and suitable for light dimming systems, industrial heating control, motor speed controllers, and static relay modules requiring stable component supply across production lifecycles.
Supply support for T2535-600G-TR 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, microcontrollers, and discrete devices for industrial, automotive, and consumer markets.
T2535-600G-TR belongs to ST's BTA/BTB/T25 family of high-reliability snubberless triacs, engineered specifically for robust AC power control in cost-sensitive, high-volume industrial and appliance applications.
FAQ
What is the maximum junction temperature for continuous operation?
The T2535-600G-TR has an operating junction temperature range of –40 °C to +125 °C. Continuous operation at 125 °C requires maintaining case temperature ≤100 °C with appropriate heatsinking, given its Rth(j–c) of 0.8 °C/W and 25 A RMS rating.
Is a snubber circuit required for inductive loads?
No - the T2535-600G-TR is a snubberless 3-quadrant triac with guaranteed dV/dt ≥ 500 V/µs and dI/dt ≥ 13 A/ms at 125 °C, enabling reliable commutation in typical inductive loads (e.g., fan motors, solenoids) without external RC networks.
How does the D²PAK package affect PCB layout and thermal design?
The D²PAK's exposed metal tab (connected to A2/MT2) must be soldered to ≥2.5 cm² of internal or external copper pour to achieve the specified Rth(j–a) of 45 °C/W; thermal vias under the tab improve heat spreading, and isolation from other layers is required due to high-voltage potential.
Can this triac be driven directly by a microcontroller GPIO?
Yes - with a series current-limiting resistor (e.g., 220 Ω for 3.3 V GPIO), the 35 mA max IGT is achievable; however, a dedicated gate driver or optocoupler (e.g., MOC3021) is recommended for noise immunity, isolation, and consistent triggering across temperature and line voltage variations.
T2535-600G-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- Snubberless™
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Triac Type:
- Alternistor - Snubberless
- Voltage - Off State:
- 600 V
- Current - On State (It (RMS)) (Max):
- 25 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 250A, 260A
- Current - Gate Trigger (Igt) (Max):
- 35 mA
- Current - Hold (Ih) (Max):
- 80 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
T2535-600G-TR FAQ
1.How can I place an order for T2535-600G-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for T2535-600G-TR 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 T2535-600G-TR reliable?
The price and inventory of T2535-600G-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T2535-600G-TR is usually 5 days.
3.What payment methods are accepted for T2535-600G-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T2535-600G-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T2535-600G-TR?
T2535-600G-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T2535-600G-TR 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 T2535-600G-TR?
For technical support, including T2535-600G-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T2535-600G-TR requirements.
6.How does Aetrix verify that T2535-600G-TR is sourced from the original manufacturer or authorized distributors?
All T2535-600G-TR 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 T2535-600G-TR meets industry standards.
7.What is the process for return or replacement of T2535-600G-TR?
All T2535-600G-TR units undergo pre-shipment inspection (PSI). If there is an issue with T2535-600G-TR, 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 T2535-600G-TR part is unused and in its original packaging.
Return procedure for T2535-600G-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T2535-600G-TR Tags
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Z0103NN5AA4
STMicroelectronics
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Littelfuse Inc.
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Z0103MNT1G
Littelfuse Inc.
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