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Diodes Incorporated T12M35T600B
- Part No.:
- T12M35T600B
- Manufacturer:
- Diodes Incorporated
- Category:
- SCRs
- Package:
- -
- Datasheet:
-
T12M35T600B.pdf
- Description:
- THYRISTOR TO220AB TUBE 50PCS
- Quantity:
- Payment:
- Shipping:
Inventory:38
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Product details
Overview
T12M35T600B from Diodes Incorporated is a 12A RMS, 600V bidirectional thyristor (triac) designed for AC power control in phase-angle dimming and motor speed regulation circuits. It features uniform gate trigger currents across Q1/Q2/Q3 quadrants (35mA), 400V/µs dv/dt immunity at +125°C, and 100A non-repetitive surge capability - enabling robust operation in industrial lighting ballasts and universal motor drives.
For engineers reviewing the T12M35T600B datasheet, T12M35T600B pinout, T12M35T600B application, or T12M35T600B equivalent, key selection criteria include verified quadrant-trigger symmetry, TO-220AB thermal performance at TC = +70°C, holding current (IH = 40mA), latching current (IL1/IL3 = 50mA), and AEC-Q200-readiness for automotive HVAC blower control.
Technical Context
This triac operates as a bidirectional AC switch with symmetrical forward/reverse blocking (VDRM/VRRM = 600V) and controlled turn-on via gate-triggered conduction in all three active quadrants. Its 400V/µs minimum critical dv/dt at +125°C ensures reliable commutation in noisy inductive loads without false triggering.
Thermal design relies on TO-220AB package mounting to heatsinks, supporting 12A RMS conduction at TC = +70°C with peak on-state voltage VTM ≤ 1.85V at ±12A. The device sustains 100A single-cycle surge (I²t = 41 A²s), making it suitable for short-duration overload conditions in appliance motor starters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 600V - Sustains full AC line voltage (e.g., 230VAC RMS) with 2.6× safety margin against transients |
| IT(RMS) | 12A - Continuous AC load current handling at TC = +70°C with standard heatsinking |
| ITSM | 100A - Withstands single half-cycle surge (8.3ms @ 60Hz), critical for motor inrush limiting |
| dv/dt (min) | 400V/µs at +125°C - Prevents spurious turn-on in high-noise environments like variable-speed drives |
| IGT1/IGT2/IGT3 | 35mA - Uniform gate sensitivity across all quadrants enables predictable phase-control timing |
| IH / IL1/IL3 | 40mA / 50mA - Low holding and latching currents reduce required gate drive energy in microcontroller-based controllers |
Pinout & Package
Package: TO-220AB - Molded plastic case with matte tin-plated leads (RoHS-compliant, UL 94V-0 rated), thermally optimized for PCB-mounted heatsink attachment. Weight: 2.0g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Main Terminal 1 (MT1) | Anode-side main current path; referenced as gate trigger polarity reference in Q1/Q3 |
| 2 | Main Terminal 2 (MT2) | Cathode-side main current path; carries bidirectional load current with MT1 |
| 3 | Gate | Control input for triggering conduction in all four quadrants; requires ≤35mA pulse |
| 4 | Main Terminal 2 (MT2) | Second connection to MT2 - electrically redundant pin for enhanced thermal/mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| Quadrant-trigger symmetry | Identical IGT (35mA) and IL (50/80/50mA) across Q1/Q2/Q3 - eliminates need for polarity-sensitive gate drivers |
| High dv/dt immunity | 400V/µs minimum at +125°C - suppresses false triggering in EMI-heavy industrial motor controls |
| Surge robustness | 100A ITSM with 41 A²s I²t rating - supports direct-on-line motor starting without external fusing |
| Green compliance | Halogen- and antimony-free (<900ppm Br/Cl, <1000ppm Sb), RoHS 3 compliant - meets automotive and EU environmental mandates |
Applications
| AC Motor Speed Control | Phase-Angle Light Dimming |
|---|---|
Use Scenario: Variable-speed control of universal motors in power tools and vacuum cleaners using microcontroller-driven zero-crossing + phase-delay firing. IC Role / Device Role / Timing Role: Bidirectional AC switching element triggered at adjustable conduction angle per half-cycle. Use Value: 12A RMS rating handles peak tool startup currents; 400V/µs dv/dt prevents misfire during brush-commutation noise. |
Use Scenario: Leading-edge dimming of incandescent/halogen lamps in residential and commercial lighting systems. IC Role / Device Role / Timing Role: Main power switch modulating RMS voltage delivered to lamp filament via gate-controlled conduction window. Use Value: Uniform Q1/Q3 IGT (35mA) simplifies single-resistor gate drive design; low IH (40mA) ensures stable hold at low brightness levels. |
| Heating Element Regulation | Automotive HVAC Blower Control |
Use Scenario: Proportional power delivery to resistive heating elements in coffee makers, rice cookers, and industrial ovens. IC Role / Device Role / Timing Role: Line-synchronized AC power switch implementing time-proportioned (burst-fire) or phase-control regulation. Use Value: 600V blocking voltage accommodates 230VAC mains with margin; TO-220AB package enables direct heatsink mounting for sustained 12A operation. |
Use Scenario: PWM-based speed control of DC-brushed HVAC blower motors in passenger vehicles, meeting AEC-Q200 stress requirements. IC Role / Device Role / Timing Role: Solid-state replacement for electromechanical relays, switching AC-fed motor windings under MCU command. Use Value: IATF 16949 manufacturing and PPAP capability support automotive qualification; 100A surge rating absorbs motor stall currents. |
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 |
|---|---|---|---|
| STMicroelectronics BTB12-600CW | Same 12A/600V rating but lower dv/dt (250V/µs @ +125°C); gate trigger current higher in Q2 (50mA vs. 35mA) | Limited suitability in high-EMI motor drives due to reduced noise immunity; requires stronger gate drive in Q2 | Preferable where cost is primary constraint and dv/dt stress is low (e.g., simple heater control) |
| ON Semiconductor MAC12N60G | 12A/600V, but only Q1/Q3 trigger specified (Q2 not characterized); I²t = 35 A²s (vs. 41 A²s) | Not recommended for Q2-triggered designs; lower surge margin reduces reliability in motor inrush scenarios | Acceptable for basic dimmers with Q1/Q3-only firing, but avoid in universal motor or HVAC blower applications |
Compared with BTB12-600CW and MAC12N60G, T12M35T600B delivers superior dv/dt immunity and balanced quadrant triggering - directly enabling simpler gate driver design and higher system reliability in demanding industrial and automotive AC control.
Availability
T12M35T600B is available at Aetrix Electronics and suitable for AC motor speed control, phase-angle light dimming, heating element regulation, and automotive HVAC blower control requiring stable component supply and long-term production continuity.
Supply support for T12M35T600B 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions.
T12M35T600B belongs to Diodes' high-immunity triac product line, engineered specifically for robust AC power switching in harsh electromagnetic environments - targeting industrial automation, appliance control, and automotive cabin systems.
FAQ
What is the maximum junction temperature for continuous operation?
The T12M35T600B supports continuous operation across a junction temperature range of –40°C to +125°C. At TC = +70°C with appropriate heatsinking, it delivers its full 12A RMS rating. Derating is required above +70°C case temperature per the datasheet's thermal resistance curve (RθJC = 1.7°C/W).
Can this triac be used in zero-crossing switched applications?
Yes - the T12M35T600B supports zero-crossing switching when paired with an optocoupler-based zero-detect circuit and microcontroller. Its uniform Q1/Q3 trigger characteristics ensure consistent turn-on timing, while 40mA holding current maintains conduction through low-voltage portions of the AC cycle.
Is the TO-220AB package lead-free and RoHS compliant?
Yes - the T12M35T600B(LS) variant uses matte tin-plated leads and green molding compound, fully compliant with RoHS 3 (2015/863/EU), halogen-free (<900ppm Br/Cl), and antimony-free (<1000ppm) standards per Diodes' definitions and certifications.
Does this part meet AEC-Q200 requirements for automotive use?
The T12M35T600B is manufactured in IATF 16949-certified facilities and supports PPAP documentation. While not pre-qualified to AEC-Q200, Diodes states it is suitable for automotive applications requiring specific change control - qualification must be performed per customer program requirements with Diodes' support.
T12M35T600B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Voltage - Off State:
- -
- Voltage - Gate Trigger (Vgt) (Max):
- -
- Current - Gate Trigger (Igt) (Max):
- -
- Voltage - On State (Vtm) (Max):
- -
- Current - On State (It (AV)) (Max):
- -
- Current - On State (It (RMS)) (Max):
- -
- Current - Hold (Ih) (Max):
- -
- Current - Off State (Max):
- -
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- -
- SCR Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
T12M35T600B FAQ
1.How can I place an order for T12M35T600B through Aetrix?
Please submit a Request for Quotation (RFQ) for T12M35T600B 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 T12M35T600B reliable?
The price and inventory of T12M35T600B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T12M35T600B is usually 5 days.
3.What payment methods are accepted for T12M35T600B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T12M35T600B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T12M35T600B?
T12M35T600B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T12M35T600B 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 T12M35T600B?
For technical support, including T12M35T600B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T12M35T600B requirements.
6.How does Aetrix verify that T12M35T600B is sourced from the original manufacturer or authorized distributors?
All T12M35T600B 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 T12M35T600B meets industry standards.
7.What is the process for return or replacement of T12M35T600B?
All T12M35T600B units undergo pre-shipment inspection (PSI). If there is an issue with T12M35T600B, 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 T12M35T600B part is unused and in its original packaging.
Return procedure for T12M35T600B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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