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STMicroelectronics TYN1012TRG
- Part No.:
- TYN1012TRG
- Manufacturer:
- STMicroelectronics
- Category:
- SCRs
- Package:
- TO-220-3
- Datasheet:
-
TYN1012TRG.pdf
- Description:
- SCR 1KV 12A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:53
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Product details
Overview
TYN1012TRG from STMicroelectronics is a 12 A, 1000 V repetitive peak off-state voltage (VRRM/VDRM) silicon-controlled rectifier (SCR) in TO-220AB package with 5 mA gate trigger current (IGT), designed for overvoltage crowbar protection and motor control circuits in power tools and kitchen appliances.
For engineers reviewing the TYN1012TRG datasheet, TYN1012TRG pinout, TYN1012TRG application, or TYN1012TRG equivalent, this device supports high-reliability AC line switching, inrush current limiting, and capacitive discharge ignition where precise low-current triggering and robust surge handling are required.
Technical Context
This SCR operates as a unidirectional latching switch triggered by a low-energy gate pulse. It features a 5 mA maximum IGT at 12 V, 33 Ω load, and sustains 1000 V blocking capability under both forward (VDRM) and reverse (VRRM) bias at junction temperatures up to 125 °C.
Its thermal resistance Rth(j-c) is 1.3 °C/W (DC), enabling 12 A RMS conduction at Tc = 110 °C. Critical dV/dt immunity exceeds 200 V/µs at 125 °C with gate open, preventing false turn-on in noisy AC environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 12 A - Sustains continuous AC load current in motor drives and heating controls without heatsink derating beyond Tc = 110 °C. |
| VDRM / VRRM | 1000 V - Blocks full-wave rectified 707 V RMS mains (e.g., 480 VAC industrial lines) with safety margin for transient spikes. |
| IGT | 5 mA max - Compatible with low-power microcontroller GPIO or optocoupler outputs without external amplification. |
| dV/dt (min) | 200 V/µs - Resists rapid voltage transients on AC lines, eliminating need for snubber networks in many crowbar designs. |
| ITSM (tp=8.3 ms) | 115 A - Withstands single half-cycle surges from short-circuit faults or capacitor charging events. |
| VTM (ITM=24 A) | 1.6 V max - Limits conduction loss to ≤38.4 W at peak current, reducing thermal stress in compact enclosures. |
| Rth(j-c) | 1.3 °C/W - Enables direct mounting to aluminum chassis or small heatsinks for 12 A operation without forced air. |
Pinout & Package
TYN1012TRG uses the TO-220AB package: insulated case, 3-pin through-hole mount, 0.4–0.6 N·m screw torque rating, lead-free and halogen-free epoxy conforming to UL94 V0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Main current entry terminal | Connects to AC line or DC positive; must withstand full blocking voltage and 115 A surge peaks. |
| Cathode (K) | Main current exit terminal | Reference node for gate drive; ties to load return; carries full RMS and surge current. |
| Gate (G) | Trigger control input | Accepts 5 mA pulse to initiate conduction; requires no sustained drive-latches until current falls below holding level (IH ≤ 30 mA). |
Key Features
| Feature | Design Value |
|---|---|
| Low IGT (5 mA) | Reduces gate driver complexity and power consumption-enables direct MCU or optocoupler interface without buffer stages. |
| 1000 V blocking rating | Supports global 230/400/480 VAC systems with margin for lightning-induced transients per IEC 61000-4-5. |
| 115 A non-repetitive surge | Handles capacitor inrush and fault currents in motor start-up or crowbar activation without failure. |
| TO-220AB mechanical robustness | Insulated case eliminates need for isolation washers; standardized footprint simplifies PCB layout and heatsink integration. |
| ECOPACK® compliance | Lead-free, halogen-free construction meets RoHS and JEDEC J-STD-020 reflow requirements for industrial manufacturing. |
Applications
| Overvoltage Crowbar Protection | Power Tool Motor Control |
|---|---|
|
Use Scenario: Fast-acting shutdown circuit across DC bus during overvoltage events (e.g., regulator failure in SMPS). IC Role / Device Role / Timing Role: Latching switch triggered by comparator output; conducts fully to short bus and blow fuse within microseconds. Use Value: 200 V/µs dV/dt immunity prevents spurious triggering during fast-rising fault transients, ensuring reliable fail-safe response. |
Use Scenario: Phase-angle controlled AC supply to universal brushed motors in corded drills and saws. IC Role / Device Role / Timing Role: Main power switch synchronized to zero-crossing; gated at variable delay to regulate speed/torque. Use Value: 5 mA IGT allows direct drive from low-power timing ICs or microcontrollers, minimizing BOM count and board space. |
| Inrush Current Limiting | Capacitive Discharge Ignition (CDI) |
|
Use Scenario: Controlled turn-on of large bulk capacitors in industrial power supplies to limit cold-start surge. IC Role / Device Role / Timing Role: Series switch bypassed after soft-start delay; blocks initial inrush, then latches on for steady-state conduction. Use Value: 12 A RMS rating supports ≥1 kW loads; 115 A ITSM handles repeated 100 A+ inrush peaks without degradation. |
Use Scenario: High-voltage spark generation in motorcycle or small-engine ignition systems using charged capacitor discharge. IC Role / Device Role / Timing Role: High-speed gate-triggered switch releasing stored energy into ignition coil primary winding. Use Value: 1.6 V VTM minimizes conduction loss during brief high-current pulse, preserving capacitor energy for strong spark output. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SCR switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TYN1012RG | Same TO-220AB package and 1000 V/12 A ratings, but IGT = 15 mA (vs. 5 mA). | Requires higher gate drive energy; less suitable for low-power MCU interfaces. | Select when gate drive capability exceeds 15 mA and cost sensitivity outweighs drive simplicity. |
| BT151-800R | 800 V VRRM (vs. 1000 V), 12 A IT(RMS), 15 mA IGT, TO-220 package (non-insulated case). | Lacks insulation and 200 V blocking margin; unsuitable for isolated crowbar or 480 VAC systems. | Choose only for cost-constrained 230 VAC applications with existing non-isolated heatsink design. |
Compared with TYN1012RG and BT151-800R, TYN1012TRG uniquely combines 1000 V blocking, 5 mA gate sensitivity, and insulated TO-220AB packaging-enabling compact, safe, and microcontroller-friendly SCR designs in industrial and appliance power stages.
Availability
TYN1012TRG is available at Aetrix Electronics and suitable for overvoltage crowbar protection, power tool motor control, and inrush current limiting requiring stable component supply across industrial OEM production cycles.
Supply support for TYN1012TRG 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, designing and manufacturing analog, power, MCU, and sensor solutions for automotive, industrial, and consumer markets.
This device belongs to ST's standard SCR product line, engineered for rugged AC/DC power control in cost-sensitive, high-reliability applications such as home appliances, power tools, and industrial safety circuits.
FAQ
What is the maximum junction temperature for continuous operation?
The TYN1012TRG has an operating junction temperature range of –40 °C to +125 °C. For continuous 12 A RMS conduction, case temperature must be held at or below 110 °C per absolute ratings table, requiring thermal management via heatsink or chassis mounting to maintain reliability.
Can TYN1012TRG be used in AC phase-control dimmers?
Yes-it supports phase-angle control with gate triggering synchronized to AC zero-crossing. Its 200 V/µs dV/dt rating and 30 mA maximum holding current (IH) ensure stable conduction through full half-cycles, making it suitable for resistive and inductive loads in lighting and heater dimming circuits.
Is the TO-220AB package electrically insulated?
Yes-the TO-220AB variant used in TYN1012TRG features an electrically insulated case, eliminating the need for insulating washers when mounted to grounded metal heatsinks. This simplifies mechanical assembly and improves thermal path consistency in industrial enclosures.
Does TYN1012TRG require a snubber circuit in typical applications?
Not universally: its 200 V/µs dV/dt immunity often eliminates snubbers in resistive or lightly inductive loads. However, for highly inductive motor loads or long cable runs with high di/dt, a small RC snubber (e.g., 100 Ω + 100 pF) across A–K is recommended to suppress voltage overshoot during commutation.
TYN1012TRG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Voltage - Off State:
- 1 kV
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Gate Trigger (Igt) (Max):
- 5 mA
- Voltage - On State (Vtm) (Max):
- 1.6 V
- Current - On State (It (AV)) (Max):
- 8 A
- Current - On State (It (RMS)) (Max):
- 12 A
- Current - Hold (Ih) (Max):
- 15 mA
- Current - Off State (Max):
- 5 µA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 140A, 145A
- SCR Type:
- Standard Recovery
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
TYN1012TRG FAQ
1.How can I place an order for TYN1012TRG through Aetrix?
Please submit a Request for Quotation (RFQ) for TYN1012TRG 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 TYN1012TRG reliable?
The price and inventory of TYN1012TRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TYN1012TRG is usually 5 days.
3.What payment methods are accepted for TYN1012TRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TYN1012TRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TYN1012TRG?
TYN1012TRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TYN1012TRG 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 TYN1012TRG?
For technical support, including TYN1012TRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TYN1012TRG requirements.
6.How does Aetrix verify that TYN1012TRG is sourced from the original manufacturer or authorized distributors?
All TYN1012TRG 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 TYN1012TRG meets industry standards.
7.What is the process for return or replacement of TYN1012TRG?
All TYN1012TRG units undergo pre-shipment inspection (PSI). If there is an issue with TYN1012TRG, 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 TYN1012TRG part is unused and in its original packaging.
Return procedure for TYN1012TRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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