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STMicroelectronics TYN612TRG
- Part No.:
- TYN612TRG
- Manufacturer:
- STMicroelectronics
- Category:
- SCRs
- Package:
- TO-220-3
- Datasheet:
-
TYN612TRG.pdf
- Description:
- SCR 600V 12A TO220AB
- Quantity:
- Payment:
- Shipping:
Inventory:1,419
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Product details
Overview
TYN612TRG from STMicroelectronics is a 12 A, 600 V repetitive peak off-state voltage (VDRM/VRRM) standard SCR with 5 mA gate trigger current (IGT), designed for phase-controlled AC power switching in motor control, overvoltage crowbar protection, and inrush limiting circuits. It operates with 1.6 V on-state voltage (VTM) at 24 A and features 50 A/µs critical dI/dt rating at 125 °C junction temperature.
For engineers reviewing the TYN612TRG datasheet, TYN612TRG pinout, TYN612TRG application, or TYN612TRG equivalent, key selection criteria include verified 600 V blocking capability, low 5 mA IGT for reliable triggering with microcontroller GPIOs, TO-220AB thermal resistance of 1.3 °C/W (junction-to-case), and compatibility with standard heatsink mounting per 0.4–0.6 N·m torque specification.
Technical Context
This SCR uses a planar passivated silicon structure with gate-controlled thyristor operation, enabling precise turn-on timing via low-energy gate pulses. Its 12 A RMS on-state current rating is validated at 110 °C case temperature, and it sustains non-repetitive surge currents up to 115 A for 8.3 ms at 25 °C initial junction temperature.
The device exhibits 200 V/µs minimum dV/dt immunity at 125 °C with gate open, ensuring robust false-trigger immunity in noisy industrial AC environments. Its 0.85 V threshold voltage (Vto) and 30 mΩ dynamic resistance (Rd) at 125 °C support low conduction losses in continuous-duty applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 12 A - Sustains continuous AC load current in motor drives and heating controls without forced cooling at Tc = 110 °C |
| VDRM / VRRM | 600 V - Blocks line-to-line voltages in 230 VAC single-phase systems with 2× safety margin |
| IGT | 5 mA - Compatible with 3.3 V or 5 V MCU GPIOs using simple RC or transistor gate driver stages |
| VTM | 1.6 V @ 24 A - Limits conduction loss to ≤38.4 W at peak current, reducing heatsink requirements |
| dI/dt | 50 A/µs - Supports fast turn-on in high-frequency phase-control dimmers and soft-start circuits |
| Rth(j-c) | 1.3 °C/W - Enables thermal design with standard TO-220 heatsinks; 10 °C rise per 7.7 W dissipated |
| IH | 30 mA - Ensures stable latching after gate pulse removal, preventing unintended commutation in inductive loads |
Pinout & Package
TYN612TRG is housed in a TO-220AB package with insulated tab, featuring three terminals: Anode (A), Cathode (K), and Gate (G). The tab is electrically connected to the Anode and must be isolated from chassis ground unless circuit topology requires common-anode configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Main current entry point during conduction | Connected to high-side AC line or DC bus; tab is electrically tied to A and requires insulating washer when mounted to grounded heatsink |
| Cathode (K) | Main current exit point during conduction | Reference node for gate drive return path; defines voltage reference for IGT measurement and zero-crossing detection circuits |
| Gate (G) | Control terminal for turn-on initiation | Receives low-energy pulse (≥5 mA, ≥1.3 V) to initiate regenerative latching; sensitive to dv/dt-induced false triggering if not properly decoupled |
Key Features
| Feature | Design Value |
|---|---|
| ECOPACK® compliant packaging | Lead-free, halogen-free molding compound meeting UL94 V0 flammability rating and RoHS/REACH requirements |
| Optimized dV/dt immunity | 200 V/µs minimum at 125 °C ensures reliable operation in EMI-prone motor drive inverters and SMPS front-ends |
| Low thermal resistance | 1.3 °C/W junction-to-case enables >10 W continuous dissipation with compact heatsinks in space-constrained industrial controls |
| Controlled gate sensitivity | 5 mA IGT allows direct drive from logic-level outputs while maintaining noise immunity via internal gate resistor network |
| Robust surge rating | 115 A non-repetitive surge (8.3 ms) supports capacitor-input rectifier inrush and short-circuit fault handling in power supplies |
Applications
| Power Tool Motor Control | Overvoltage Crowbar Protection |
|---|---|
|
Use Scenario: Variable-speed drill and angle grinder controllers using phase-angle AC regulation. IC Role / Device Role / Timing Role: Main power switch triggered synchronously with AC zero-crossing to modulate average motor voltage. Use Value: 5 mA IGT enables direct interface with low-power microcontrollers; 12 A RMS rating supports 1200 W tools without auxiliary cooling. |
Use Scenario: Secondary-side overvoltage shutdown in offline SMPS and AC-DC adapters. IC Role / Device Role / Timing Role: Fast-acting crowbar device that shorts output to ground upon overvoltage detection. Use Value: 115 A surge rating handles transient energy from transformer leakage inductance; 600 V VDRM covers 400 VDC bus with margin. |
| Inrush Current Limiting | Voltage Regulation Circuits |
|
Use Scenario: Soft-start for large electrolytic input capacitors in industrial power supplies. IC Role / Device Role / Timing Role: Series-connected SCR bypassed after capacitor charging completes via timer-controlled gate pulse. Use Value: 30 mA holding current (IH) ensures reliable turn-off after bypass relay closure; TO-220AB mechanical robustness withstands repeated thermal cycling. |
Use Scenario: Adjustable AC voltage regulators for laboratory bench supplies and HVAC actuators. IC Role / Device Role / Timing Role: Phase-controlled switch in back-to-back configuration for bidirectional AC power control. Use Value: 200 V/µs dV/dt immunity prevents false triggering from harmonics generated by TRIAC-based dimming loads sharing same supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SCR switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TYN612RG | Same 600 V / 12 A rating but 15 mA IGT; higher gate drive requirement | Less suitable for low-power MCU interfaces; better noise immunity in high-EMI environments | Select when gate drive circuit provides ≥15 mA and system prioritizes dV/dt robustness over drive simplicity |
| BT169G | 4 A RMS rating, 400 V VDRM, TO-92 package; lower power, no heatsink needed | Limited to signal-level or low-power AC switching (e.g., lamp dimmers <100 W) | Choose only for cost-sensitive, low-current applications where 12 A capacity and TO-220 thermal performance are unnecessary |
Compared with TYN612RG and BT169G, TYN612TRG uniquely balances low 5 mA gate drive demand, 600 V blocking, and TO-220AB thermal capability-making it optimal for mid-power industrial controls where MCU integration and heatsink efficiency are both critical.
Availability
TYN612TRG is available at Aetrix Electronics and suitable for motor control in power tools, overvoltage crowbar protection in AC-DC converters, and inrush limiting in industrial power supplies requiring stable component supply across multi-year production cycles.
Supply support for TYN612TRG 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, digital, and mixed-signal ICs for automotive, industrial, and consumer markets.
TYN612TRG belongs to ST's standard SCR product line, engineered specifically for rugged, cost-effective AC power control in appliances, power tools, and industrial equipment where reliability under thermal and electrical stress is essential.
FAQ
What is the maximum recommended gate resistor value for reliable triggering of TYN612TRG?
A series gate resistor ≤680 Ω is recommended when driving from a 5 V source to ensure ≥5 mA IGT is delivered despite VGT drop (≤1.3 V) and PCB trace resistance. Higher values risk marginal triggering under temperature variation or aging; ST's AN435 application note confirms 470 Ω as typical for 5 V MCU GPIOs with 100 ns pulse width.
Can TYN612TRG be used in a back-to-back configuration for full-wave AC control?
Yes-TYN612TRG supports back-to-back mounting for bidirectional AC switching, provided each device's anode is isolated and gate drive circuits are referenced correctly. Its 600 V VDRM rating applies per device, so the pair handles 600 V peak AC line voltage; derating to 400 V is advised for long-term reliability in 230 VAC mains applications.
Does the TO-220AB package of TYN612TRG require thermal compound when mounted to a heatsink?
Yes-ST specifies use of thermally conductive compound (e.g., silicone grease or phase-change pad) between the insulated tab and heatsink surface to minimize thermal resistance. Without it, Rth(j-hs) increases significantly beyond the rated 1.3 °C/W junction-to-case value, risking thermal runaway above 7 W dissipation.
What is the minimum hold time required for the gate pulse to ensure latching in TYN612TRG?
The gate pulse must remain active for ≥10 µs after current reaches the latching threshold (IL ≤60 mA), per ST's characterization data. In practice, 50–100 µs pulses at ≥5 mA ensure robust latching across temperature (−40 to +125 °C) and load variations; shorter pulses may fail to sustain conduction in high-dI/dt inductive loads.
TYN612TRG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Voltage - Off State:
- 600 V
- 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
TYN612TRG FAQ
1.How can I place an order for TYN612TRG through Aetrix?
Please submit a Request for Quotation (RFQ) for TYN612TRG 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 TYN612TRG reliable?
The price and inventory of TYN612TRG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TYN612TRG is usually 5 days.
3.What payment methods are accepted for TYN612TRG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TYN612TRG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TYN612TRG?
TYN612TRG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TYN612TRG 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 TYN612TRG?
For technical support, including TYN612TRG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TYN612TRG requirements.
6.How does Aetrix verify that TYN612TRG is sourced from the original manufacturer or authorized distributors?
All TYN612TRG 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 TYN612TRG meets industry standards.
7.What is the process for return or replacement of TYN612TRG?
All TYN612TRG units undergo pre-shipment inspection (PSI). If there is an issue with TYN612TRG, 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 TYN612TRG part is unused and in its original packaging.
Return procedure for TYN612TRG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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