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STMicroelectronics TN1215-800G-TR
- Part No.:
- TN1215-800G-TR
- Manufacturer:
- STMicroelectronics
- Category:
- SCRs
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
TN1215-800G-TR.pdf
- Description:
- SCR 800V 12A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:932
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Product details
Overview
TN1215-800G-TR from STMicroelectronics is a standard 12 A, 800 V repetitive peak off-state voltage (VDRM/VRRM) silicon-controlled rectifier (SCR) in D²PAK (TO-263) package with 15 mA maximum gate trigger current (IGT), 12 A RMS on-state current (IT(RMS)), and 145 A non-repetitive surge peak on-state current (ITSM, tp = 10 ms). It serves as a main power switching device in crowbar protection, motor control for power tools, and inrush limiting circuits.
For engineers reviewing the TN1215-800G-TR datasheet, TN1215-800G-TR pinout, TN1215-800G-TR application, or TN1215-800G-TR equivalent, key selection criteria include VDRM/VRRM rating, IGT sensitivity, thermal resistance (Rth(j-c) = 1.3 °C/W), IT(RMS) derating at elevated case temperature, and D²PAK surface-mount compatibility for high-power density designs.
Technical Context
This SCR operates in phase-controlled or full-wave rectification modes, triggered by a low-energy gate pulse (IGT ≤ 15 mA at VD = 12 V, RL = 33 Ω). Its latching current (IL ≤ 30 mA) and holding current (IH ≤ 15 mA) ensure reliable turn-on retention and stable conduction under load transients.
Designed for 50/60 Hz line-frequency applications, it supports critical dV/dt immunity ≥ 200 V/µs (at Tj = 125 °C, gate open) and exhibits low on-state voltage drop (VTM ≤ 1.6 V at ITM = 24 A, Tj = 25 °C) with dynamic resistance Rd ≤ 30 mΩ - enabling efficient power handling without external snubbers in many configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 800 V - blocks up to 800 V in reverse or forward blocking state; suitable for 380–480 VAC industrial mains interfaces. |
| IT(RMS) | 12 A - continuous RMS current capability at Tc = 110 °C; enables 1.7 kW resistive load switching at 230 VAC. |
| IGT (max) | 15 mA - maximum gate trigger current required; compatible with microcontroller GPIO or low-power driver ICs without buffering. |
| ITSM (tp = 10 ms) | 145 A - surge current withstand for short overloads (e.g., motor startup, capacitor charging); defines fusing I²t = 98 A²s. |
| Rth(j-c) | 1.3 °C/W - junction-to-case thermal resistance; allows ~10 W dissipation at ΔT = 13 °C above heatsink temperature. |
| dV/dt (min) | 200 V/µs - minimum rate of rise of off-state voltage before false triggering; eliminates need for gate snubber in clean AC environments. |
| VTM (max) | 1.6 V - peak on-state voltage at 24 A pulse; results in < 38.4 W conduction loss at full RMS current under worst-case duty cycle. |
Pinout & Package
Package: D²PAK (TO-263), surface-mount, single-ended tab (anode-connected tab), thermally enhanced plastic housing with ECOPACK® compliance and halogen-free molding resin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Tab) | Main current input terminal | Electrically and thermally connected to metal tab; must be mounted to heatsink with insulated hardware if floating potential required. |
| Cathode | Main current output terminal | Low-inductance PCB trace routing recommended; carries full load current back to source return path. |
| Gate | Control input for turn-on initiation | Triggered by positive pulse relative to cathode; requires < 15 mA at 12 V; sensitive to noise - layout must minimize loop area. |
Key Features
| Feature | Design Value |
|---|---|
| High surge robustness | 145 A ITSM (10 ms) enables reliable operation during motor inrush or capacitor charging without derating. |
| Low gate drive requirement | 15 mA IGT max allows direct drive from MCU I/O pins or logic-level gate drivers - reduces BOM count. |
| Thermally optimized package | D²PAK Rth(j-c) = 1.3 °C/W supports >10 W steady-state dissipation with minimal heatsink footprint. |
| High dV/dt immunity | 200 V/µs min prevents false triggering in noisy industrial AC environments - improves system reliability. |
| ECOPACK® compliant | Lead-free, halogen-free, UL94 V0 rated - meets RoHS, REACH, and JEDEC MSL-1 requirements for automated assembly. |
Applications
| Overvoltage Crowbar Protection | Power Tool Motor Control |
|---|---|
|
Use Scenario: Fast-acting short-circuit activation across DC bus when overvoltage exceeds safe threshold (e.g., regulator failure). IC Role / Device Role / Timing Role: Main crowbar switch; triggered by comparator-driven gate pulse within < 1 µs of fault detection. Use Value: 145 A ITSM and 800 V VDRM enable immediate bus clamping without fuse coordination delay or MOSFET avalanche stress. |
Use Scenario: Phase-angle controlled speed regulation of universal motors in corded drills and sanders. IC Role / Device Role / Timing Role: Line-synchronized AC power switch; gated at variable conduction angle per half-cycle. Use Value: 12 A IT(RMS) and 15 mA IGT support compact, fanless motor drives with smooth low-speed torque and EMI-controlled switching. |
| Inrush Current Limiting | Voltage Regulation Circuits |
|
Use Scenario: Controlled turn-on of large capacitive loads (e.g., SMPS front-end, battery chargers) to limit peak input current. IC Role / Device Role / Timing Role: Series pass element activated after NTC cooldown or timed delay; bypassed once bulk cap is charged. Use Value: Low VTM (≤1.6 V) minimizes conduction loss during inrush window; D²PAK thermal performance avoids thermal runaway during repeated cycles. |
Use Scenario: Adjustable AC voltage control for laboratory bench supplies or lighting dimmers using autotransformer + phase control. IC Role / Device Role / Timing Role: Bidirectional AC switch (with anti-parallel partner) regulating RMS output via firing angle modulation. Use Value: Stable 25 °C–125 °C IGT and IH behavior ensures consistent firing point across ambient and self-heating conditions - critical for precision regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SCR switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TYN812TRG | Same 800 V VDRM, but TO-220AB through-hole package; higher Rth(j-c) = 1.3 °C/W (same value) but larger thermal mass; IGT = 15 mA. | Requires drilled PCB and mechanical mounting; better suited for prototyping or lower-volume assemblies where manual soldering is acceptable. | Select when legacy board layout or serviceability favors through-hole; avoid if surface-mount automation or space constraints apply. |
| TN1215-800B-TR | Same 800 V VDRM and 15 mA IGT, but DPAK package; Rth(j-c) = 1.3 °C/W (identical), yet lower ITSM = 115 A (tp = 8.3 ms) and smaller copper pad area. | Lower surge margin and reduced thermal interface area limit use in high-inrush or high-ambient applications. | Select only for space-constrained, low-surge applications (< 100 A peak); verify thermal design with DPAK's higher Rth(j-a) = 70 °C/W. |
Compared with TYN812TRG and TN1215-800B-TR, the TN1215-800G-TR delivers identical voltage/current ratings and gate sensitivity in a surface-mount D²PAK that balances surge capability, thermal performance, and automated assembly compatibility - making it optimal for volume production of industrial motor controls and protection modules.
Availability
TN1215-800G-TR is available at Aetrix Electronics and suitable for overvoltage crowbar protection, power tool motor control, and inrush current limiting applications requiring stable component supply, long-term manufacturability, and RoHS-compliant packaging.
Supply support for TN1215-800G-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, 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 cost-effective, robust AC power control in industrial equipment, appliances, and protection systems - emphasizing reliability, thermal efficiency, and ease of drive.
FAQ
What is the maximum junction temperature for continuous operation?
The TN1215-800G-TR has an operating junction temperature range of –40 °C to +125 °C. Continuous operation at Tj = 125 °C is permitted only when IT(RMS) is derated to 12 A at Tc = 110 °C, per Table 2. Exceeding this requires thermal modeling or heatsink optimization to maintain Tj ≤ 125 °C under worst-case ambient and power dissipation.
Can this SCR be used in AC line commutated circuits without a snubber?
Yes - its minimum dV/dt rating of 200 V/µs (at Tj = 125 °C, gate open) allows snubberless operation in clean 50/60 Hz AC environments. However, snubbers remain recommended for inductive loads or electrically noisy settings to suppress voltage spikes exceeding VDRM during natural commutation.
Is the anode tab electrically isolated in the D²PAK package?
No - the metal tab is internally connected to the anode terminal. Electrical isolation requires insulating hardware (e.g., shoulder washers, silicone pads) between tab and heatsink. For floating-anode topologies, consider TO-220AB insulated variants like TYN812TRG with isolated tab option.
What is the gate trigger voltage threshold (VGT) specification?
VGT is specified as a maximum of 1.3 V at Tj = 25 °C (Table 3). This means the gate-cathode voltage must exceed ~1.3 V to guarantee turn-on under worst-case conditions. Gate drive circuits should provide ≥ 2 V to ensure margin across temperature and unit-to-unit variation.
TN1215-800G-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Off State:
- 800 V
- Voltage - Gate Trigger (Vgt) (Max):
- 1.3 V
- Current - Gate Trigger (Igt) (Max):
- 15 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):
- 30 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:
- Surface Mount
- Supplier Device Package:
- D2PAK
TN1215-800G-TR FAQ
1.How can I place an order for TN1215-800G-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for TN1215-800G-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 TN1215-800G-TR reliable?
The price and inventory of TN1215-800G-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TN1215-800G-TR is usually 5 days.
3.What payment methods are accepted for TN1215-800G-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TN1215-800G-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TN1215-800G-TR?
TN1215-800G-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TN1215-800G-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 TN1215-800G-TR?
For technical support, including TN1215-800G-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TN1215-800G-TR requirements.
6.How does Aetrix verify that TN1215-800G-TR is sourced from the original manufacturer or authorized distributors?
All TN1215-800G-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 TN1215-800G-TR meets industry standards.
7.What is the process for return or replacement of TN1215-800G-TR?
All TN1215-800G-TR units undergo pre-shipment inspection (PSI). If there is an issue with TN1215-800G-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 TN1215-800G-TR part is unused and in its original packaging.
Return procedure for TN1215-800G-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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