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STMicroelectronics TN815-600B
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- Part No.:
- TN815-600B
- Manufacturer:
- STMicroelectronics
- Category:
- SCRs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
TN815-600B.pdf
- Description:
- SCR 600V 8A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:2,590
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Product details
Overview
TN815-600B from STMicroelectronics is a standard-sensitivity 8 A, 600 V silicon-controlled rectifier (SCR) in DPAK package, designed for phase-controlled AC power switching in motor control, overvoltage crowbar protection, and capacitive discharge ignition circuits. It features 15 mA maximum gate trigger current (IGT), 1.6 V max on-state voltage (VTM) at 16 A, and 50 A/µs critical rate of rise of on-state current (dl/dt).
For engineers reviewing the TN815-600B datasheet, TN815-600B pinout, TN815-600B application, or TN815-600B equivalent, this device is selected for robust gate-triggered AC line switching where high dV/dt immunity (≥50 V/µs), low conduction loss, and thermal reliability in compact surface-mount form are required.
Technical Context
This SCR operates as a unidirectional latching switch triggered by a positive gate pulse relative to cathode, sustaining conduction until current falls below holding current (IH ≤ 40 mA). Its 600 V repetitive peak off-state voltage (VDRM/VRRM) supports 230 VAC mains with margin, and its 70 A non-repetitive surge rating (tp = 10 ms) enables inrush current handling in power tools and kitchen appliances.
The device uses planar passivated junction technology with optimized gate structure for stable triggering across -40 °C to +125 °C junction temperature range. Thermal resistance junction-to-case is 1.3 °C/W (DPAK), enabling 8 A RMS conduction at TC = 91 °C without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 8 A RMS on-state current - supports continuous 230 VAC motor loads up to ~1.8 kW with heatsinking |
| VDRM / VRRM | 600 V - provides 2.6× safety margin over 230 VAC peak (325 V), suitable for industrial mains interfaces |
| IGT (max) | 15 mA - compatible with standard microcontroller GPIO or optocoupler drivers without external amplification |
| VTM (max) | 1.6 V at 16 A - yields <1.3 W conduction loss at full RMS current, minimizing thermal stress |
| dl/dt (min) | 50 A/µs - ensures reliable turn-on under fast-rising load currents, e.g., inductive motor starts |
| dV/dt (min) | 50 V/µs - suppresses false triggering from line transients in noisy industrial environments |
| Rth(j-c) | 1.3 °C/W - allows direct mounting to PCB copper pour for passive thermal management in space-constrained designs |
Pinout & Package
DPAK (TO-252) package: surface-mount, single-tab, 3-lead outline with exposed cathode tab for thermal and electrical connection. Dimensions per DS2118 Rev 9: 6.22 mm × 6.73 mm × 2.40 mm (L × W × H), lead pitch 2.286 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Main current entry terminal | Connected to AC line or DC bus positive; must withstand full VDRM and IT(RMS) with adequate creepage/clearance |
| Cathode (K) | Main current exit terminal & thermal path | Electrically and thermally tied to exposed metal tab; requires minimum 3 cm² 35 µm copper for Rth(j-a) ≤ 70 °C/W |
| Gate (G) | Control input for latching turn-on | Receives low-energy pulse (≥15 mA, ≥10 µs); polarity-sensitive (positive w.r.t. K); isolated from power path |
Key Features
| Feature | Design Value |
|---|---|
| Standard gate sensitivity (IGT ≤ 15 mA) | Enables direct drive from logic-level sources while maintaining noise immunity vs. sensitive-gate variants |
| High dV/dt immunity (≥50 V/µs) | Prevents spurious turn-on during line surges or commutation spikes in motor drives and SMPS crowbar circuits |
| Low on-state voltage (VTM ≤ 1.6 V) | Reduces conduction losses and self-heating, extending lifetime in thermally constrained PCB layouts |
| Robust surge rating (ITSM = 70 A, tp = 10 ms) | Withstands repeated inrush events in power tool startups and transformer energization without degradation |
| ECOPACK® halogen-free, lead-free construction | Meets RoHS and JEDEC J-STD-020 reflow profiles; UL94 V0 molding compound ensures flame resistance |
Applications
| Motor Control in Power Tools | Overvoltage Crowbar Protection |
|---|---|
|
Use Scenario: Phase-angle controlled speed regulation in corded drills and angle grinders using 230 VAC universal motors. IC Role / Device Role / Timing Role: Main AC switching element triggered synchronously with zero-crossing detection to modulate average power delivered to motor windings. Use Value: Enables precise torque/speed control with minimal gate drive overhead and thermal footprint, supporting compact handheld housing design. |
Use Scenario: Fast-acting short-circuit protection in lab power supplies and programmable DC sources. IC Role / Device Role / Timing Role: Latched crowbar switch that clamps output to ground upon overvoltage detection, diverting fault current away from sensitive downstream circuitry. Use Value: Sub-10 µs response time after trigger ensures MOSFETs or regulators remain undamaged during transient overvoltage events. |
| Inrush Current Limiting | Capacitive Discharge Ignition (CDI) |
|
Use Scenario: Soft-start for high-capacitance input stages in industrial AC-DC converters and LED drivers. IC Role / Device Role / Timing Role: Series-connected SCR bypassed after NTC warm-up or timed delay, limiting peak charging current to <5× steady-state rating. Use Value: Eliminates need for bulky NTCs or active MOSFET precharge circuits, reducing BOM count and improving long-term reliability. |
Use Scenario: High-voltage spark generation in small-engine ignition systems (e.g., chainsaws, generators). IC Role / Device Role / Timing Role: Triggered switch discharging a charged capacitor bank through primary winding of ignition coil to generate 10–20 kV secondary pulse. Use Value: Supports >100 A peak discharge current with consistent timing jitter <1 µs, ensuring repeatable spark timing across temperature and battery voltage ranges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SCR switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TN805-600B | Lower IGT (5 mA max) but same VDRM, IT(RMS), and package; reduced gate drive requirement | Better suited for ultra-low-power gate drivers; slightly lower dV/dt immunity (50 V/µs vs. TN815's 50 V/µs - identical min spec) | Select when gate drive capability is limited (e.g., weak optocouplers) and higher noise immunity is not critical. |
| TYN608RG | Same IGT (15 mA), but TO-220AB through-hole package; higher Rth(j-c) = 1.3 °C/W (same value), but larger thermal mass | Preferred for prototyping, high-reliability industrial controls, or where manual assembly and mechanical robustness are prioritized over board space | Choose for legacy designs requiring through-hole mounting or where DPAK solder joint reliability under vibration is a concern. |
Compared with TN805-600B, TN815-600B offers higher gate trigger margin for noisy environments without increasing drive complexity; versus TYN608RG, it delivers identical electrical performance in a 75% smaller footprint and 90% lower weight, ideal for automated SMT production and compact end equipment.
Availability
TN815-600B is available at Aetrix Electronics and suitable for motor control in power tools, overvoltage crowbar protection in lab power supplies, and inrush limiting in industrial AC-DC converters requiring stable component supply and full traceability.
Supply support for TN815-600B 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, discrete devices, and modules for automotive, industrial, and consumer markets.
TN815-600B belongs to ST's high-reliability SCR portfolio targeting ruggedized AC power control, emphasizing thermal stability, surge robustness, and compatibility with automated SMT assembly processes.
FAQ
What is the maximum junction temperature for continuous operation?
The TN815-600B has an operating junction temperature range of -40 °C to +125 °C. For continuous 8 A RMS conduction, case temperature must be held ≤91 °C per datasheet derating curves - achievable with ≥3 cm² of 35 µm copper on FR4 PCB or minimal heatsinking. Exceeding 125 °C risks irreversible parametric shift and latch-up failure.
Can TN815-600B replace TS820-600B in existing designs?
No - TS820-600B is a sensitive-gate SCR with IGT ≤ 0.2 mA, whereas TN815-600B requires up to 15 mA. Direct substitution would result in failed turn-on unless gate drive strength is increased by ≥75×. Circuit redesign including gate resistor reduction and driver capability verification is mandatory before replacement.
Is the DPAK package lead-free and RoHS-compliant?
Yes - TN815-600B uses ST's ECOPACK® DPAK package with lead-free plating and halogen-free molding compound compliant with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1 (MSL1). Reflow profile follows IPC/JEDEC J-STD-020D, peak temperature 260 °C.
What is the recommended gate resistor value for microcontroller-driven operation?
For 3.3 V GPIO driving TN815-600B, use RGK = 150 Ω to deliver ≥15 mA peak gate current with 10 µs pulse width. This ensures reliable turn-on across temperature and aging while limiting gate dissipation to <1 W peak. Verify with oscilloscope that gate pulse exceeds 10 µs and maintains >2 V during conduction.
TN815-600B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tube
- Product Status:
- Obsolete
- Voltage - Off State:
- 600 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):
- 5 A
- Current - On State (It (RMS)) (Max):
- 8 A
- Current - Hold (Ih) (Max):
- 40 mA
- Current - Off State (Max):
- 5 µA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 70A, 73A
- SCR Type:
- Standard Recovery
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
TN815-600B FAQ
1.How can I place an order for TN815-600B through Aetrix?
Please submit a Request for Quotation (RFQ) for TN815-600B 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 TN815-600B reliable?
The price and inventory of TN815-600B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TN815-600B is usually 5 days.
3.What payment methods are accepted for TN815-600B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TN815-600B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TN815-600B?
TN815-600B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TN815-600B 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 TN815-600B?
For technical support, including TN815-600B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TN815-600B requirements.
6.How does Aetrix verify that TN815-600B is sourced from the original manufacturer or authorized distributors?
All TN815-600B 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 TN815-600B meets industry standards.
7.What is the process for return or replacement of TN815-600B?
All TN815-600B units undergo pre-shipment inspection (PSI). If there is an issue with TN815-600B, 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 TN815-600B part is unused and in its original packaging.
Return procedure for TN815-600B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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