My Inquiry
My Account
Diodes Incorporated T12M10T800UB
- Part No.:
- T12M10T800UB
- Manufacturer:
- Diodes Incorporated
- Category:
- TRIACs
- Package:
- TO-220-3
- Datasheet:
-
T12M10T800UB.pdf
- Description:
- THYRISTOR TO220AB TUBE 50PCS
- Quantity:
- Payment:
- Shipping:
Inventory:5,273
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
T12M10T800UB from Diodes Incorporated is a glass-passivated, lead-free, halogen-free TRIAC designed for bidirectional AC power switching in mains-connected loads. It features 800V repetitive peak off-state voltage (VDRM/VRRM), 12A RMS on-state current (IT(RMS)), 10mA maximum gate trigger current (IGT1) in Quadrant I, and operates up to +125°C junction temperature - enabling use in fan speed controls, light dimmers, and coffee machine heating circuits.
For engineers reviewing the T12M10T800UB datasheet, T12M10T800UB pinout, T12M10T800UB application, or T12M10T800UB equivalent, key selection criteria include quadrant-triggering behavior (QI/QII/QIII only), dV/dt immunity (40 V/µs min at TJ = +125°C), thermal resistance (RθJC = 1.8 °C/W), and TO220AB package compatibility with standard heatsink mounting.
Technical Context
This TRIAC implements silicon bidirectional thyristor architecture with glass passivation for enhanced voltage ruggedness and long-term reliability under repetitive surge stress. Its triggering is limited to three quadrants (I, II, III), excluding QIV operation - requiring gate drive polarity alignment with main terminal voltage polarity during turn-on.
It delivers 90A non-repetitive surge current (ITSM) for 20ms at 50Hz and sustains 40.5 A²s I²t rating for fusing protection. Thermal design is supported by low junction-to-case resistance (1.8 °C/W) and validated operation across –40°C to +125°C ambient and junction temperatures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 800 V - Withstands 800V peak AC line voltage without conduction; suitable for 230VAC mains applications with safety margin. |
| IT(RMS) | 12 A - Sustains continuous 12A RMS load current at TJ = +125°C; requires heatsinking per RθJC = 1.8 °C/W. |
| IGT1 (max) | 10 mA - Minimum gate drive current required in Quadrant I; enables direct drive from microcontroller GPIO via 1.2kΩ resistor at 12V. |
| dV/dt (min) | 40 V/µs - Immunity to false triggering from rapid voltage transients; sufficient for unfiltered 230VAC environments. |
| VT (max) | 1.6 V - On-state voltage drop at IT = 12A; determines conduction loss (19.2W max) and thermal management needs. |
| IH1 (max) | 15 mA - Holding current in Quadrant I; ensures stable conduction down to low-load currents without dropout. |
| RθJC | 1.8 °C/W - Junction-to-case thermal resistance; defines minimum heatsink requirement for safe 12A operation. |
Pinout & Package
Package: TO220AB (Type WX), 3-terminal molded plastic case with matte tin-plated leads, UL 94V-0 rated, weight ≈2.08 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MT1 (Main Terminal 1) | Anode of forward-conducting path / Cathode of reverse-conducting path | Primary current return path; connected to neutral or low-side AC line; referenced for gate trigger polarity in QI/QII. |
| MT2 (Main Terminal 2) | Cathode of forward-conducting path / Anode of reverse-conducting path | Main load connection point; carries full AC load current; polarity relative to MT1 defines quadrant behavior. |
| G (Gate) | Control electrode for bidirectional turn-on | Triggers conduction when biased positive relative to MT1 (QI), negative relative to MT2 (QII), or negative relative to MT1 (QIII); no QIV support. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivation | Enhances surface insulation integrity and long-term VDRM stability under humidity and thermal cycling. |
| Three-quadrant triggering only | Eliminates QIV operation, simplifying gate driver design and reducing risk of unintended turn-on from noise coupling. |
| High junction temperature rating | +125°C max TJ enables compact designs in thermally constrained enclosures without derating at ambient ≤85°C. |
| Lead-free & halogen-free ("Green") | Complies with RoHS 3 (2015/863/EU) and Diodes' halogen-free definition (<900ppm Br, <900ppm Cl, <1000ppm Sb). |
| TO220AB mechanical robustness | Standardized footprint with 2.29–2.79 mm lead pitch and 14.4–15.2 mm body width supports automated assembly and field replacement. |
Applications
| AC Fan Speed Control | Resistive Load Dimming |
|---|---|
|
Use Scenario: Variable-speed control of universal motors in ceiling fans and exhaust systems using phase-angle modulation. IC Role / Device Role / Timing Role: Bidirectional AC switch triggered mid-cycle to regulate average power delivered to motor windings. Use Value: Enables smooth speed ramping with 12A RMS handling and 90A surge tolerance for motor startup inrush. |
Use Scenario: Mains-voltage dimming of incandescent and halogen lamps in residential lighting fixtures. IC Role / Device Role / Timing Role: Main power switch synchronized to zero-crossing or phase-cut timing for brightness adjustment. Use Value: 800V VDRM ensures reliable blocking during full AC half-cycles; 10mA IGT1 allows low-power MCU-compatible gate drive. |
| Small Appliance Heating | Power Tool Motor Control |
|
Use Scenario: On/off and duty-cycled heating in coffee makers, kettles, and toaster ovens. IC Role / Device Role / Timing Role: High-current AC switch controlling resistive heater elements via burst-fire or phase-control. Use Value: 1.6V VT minimizes conduction loss at 12A; glass passivation prevents leakage degradation during repeated thermal cycling. |
Use Scenario: Reversible or variable-speed control of brushed AC motors in electric drills and sanders. IC Role / Device Role / Timing Role: Bidirectional switching element in H-bridge or single-phase AC motor drive topology. Use Value: 40 V/µs dV/dt rating suppresses false triggering from commutation spikes; TO220AB mount supports forced-air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TRIAC-based AC power switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics BT139-800E | Same 800V VDRM, 16A IT(RMS), but higher 35mA IGT and 4-pole TO220 package with insulated tab. | Higher current rating suits heavier loads; insulated tab eliminates need for mica washer in heatsink mounting. | Select when >12A RMS load current or isolated mounting is required; verify gate drive capability for 35mA IGT. |
| Littelfuse Q6012LH5 | 800V VDRM, 12A IT(RMS), but 25mA IGT and lower 35V/µs dV/dt; UL-recognized, not AEC-Q qualified. | Lower dV/dt demands snubber network in noisy EMI environments; lacks automotive qualification. | Prefer for cost-sensitive industrial controls where snubbers are already deployed; avoid in high-noise or automotive contexts. |
Compared with BT139-800E and Q6012LH5, T12M10T800UB offers the lowest gate trigger current (10mA) for direct MCU interfacing and superior dV/dt immunity (40 V/µs), making it optimal for compact, low-power-controlled AC switching where thermal margin and noise resilience are critical.
Availability
T12M10T800UB is available at Aetrix Electronics and suitable for AC fan speed control, resistive load dimming, and small appliance heating requiring stable component supply, RoHS-compliant manufacturing, and TO220AB package compatibility.
Supply support for T12M10T800UB 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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
T12M10T800UB belongs to Diodes' high-voltage TRIAC product line, engineered for reliable, cost-effective AC power control in consumer, industrial, and appliance applications where ruggedness, thermal performance, and regulatory compliance are essential.
FAQ
What is the maximum gate trigger voltage for T12M10T800UB?
The maximum gate trigger voltage (VGT1) is 1.5 V at TA = +25°C and TJ = +125°C, measured with VAK = 12 V and RL = 100 Ω. This low threshold ensures compatibility with 3.3V and 5V logic outputs when used with appropriate series resistance, and remains stable across the full operating temperature range.
Can T12M10T800UB be used in automotive applications?
T12M10T800UB is not AEC-Q101 qualified and is not recommended for automotive powertrain or safety-critical systems. Diodes offers separate AEC-Q101-qualified TRIACs (e.g., T12M10T800UB-AQ) for such applications; consult Diodes' automotive product definitions page for PPAP-capable alternatives.
Does T12M10T800UB support Quadrant IV triggering?
No - T12M10T800UB is specified for triggering in Quadrants I, II, and III only. Quadrant IV (positive MT2, negative gate) is explicitly excluded per datasheet Figure 1 and electrical characteristics table; attempting QIV drive may result in unreliable or failed turn-on.
What is the recommended heatsink interface for TO220AB mounting?
Mount T12M10T800UB using a thermally conductive insulating pad (e.g., mica or polymer film) and thermal grease on an aluminum heatsink sized per RθJA = 6.9 °C/W (free air) or RθJC = 1.8 °C/W (with finned heatsink). The datasheet specifies an 85mm × 32mm × 24mm fin-type heatsink for full 12A operation at TJ ≤ +125°C.
T12M10T800UB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Bulk
- Product Status:
- Active
- Triac Type:
- Standard
- Voltage - Off State:
- 800 V
- Current - On State (It (RMS)) (Max):
- 12 A
- Voltage - Gate Trigger (Vgt) (Max):
- 1.5 V
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 90A @ 50Hz, 90A @ 60Hz
- Current - Gate Trigger (Igt) (Max):
- 10 mA
- Current - Hold (Ih) (Max):
- 15 mA
- Configuration:
- Single
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO220AB (Type WX)
T12M10T800UB FAQ
1.How can I place an order for T12M10T800UB through Aetrix?
Please submit a Request for Quotation (RFQ) for T12M10T800UB 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 T12M10T800UB reliable?
The price and inventory of T12M10T800UB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for T12M10T800UB is usually 5 days.
3.What payment methods are accepted for T12M10T800UB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for T12M10T800UB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for T12M10T800UB?
T12M10T800UB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your T12M10T800UB 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 T12M10T800UB?
For technical support, including T12M10T800UB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your T12M10T800UB requirements.
6.How does Aetrix verify that T12M10T800UB is sourced from the original manufacturer or authorized distributors?
All T12M10T800UB 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 T12M10T800UB meets industry standards.
7.What is the process for return or replacement of T12M10T800UB?
All T12M10T800UB units undergo pre-shipment inspection (PSI). If there is an issue with T12M10T800UB, 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 T12M10T800UB part is unused and in its original packaging.
Return procedure for T12M10T800UB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
T12M10T800UB Tags
-
Z0103NN5AA4
STMicroelectronics
-
Z0107MNT1G
Littelfuse Inc.
-
Z0103MNT1G
Littelfuse Inc.
;;2.jpg)
-
T405-800B-TR
STMicroelectronics
-
T835-600B-TR
STMicroelectronics
.JPG)
-
2N6073BG
Littelfuse Inc.
-
2N6075BG
Littelfuse Inc.
-
BTA08-600CWRG
STMicroelectronics
-
T835H-6G-TR
STMicroelectronics
-
BTA16-800BRG
STMicroelectronics
-
T1210-800G-TR
STMicroelectronics
-
MAC4DHMT4G
Littelfuse Inc.
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
