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STMicroelectronics TN805-600B-TR
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- Part No.:
- TN805-600B-TR
- Manufacturer:
- STMicroelectronics
- Category:
- SCRs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
TN805-600B-TR.pdf
- Description:
- SCR 600V 8A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:2,480
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Product details
Overview
TN805-600B-TR from STMicroelectronics is a standard-sensitivity 8 A, 600 V silicon controlled rectifier (SCR) in DPAK package, with 5 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); used in overvoltage crowbar protection and motor control circuits for power tools.
For engineers reviewing the TN805-600B-TR datasheet, TN805-600B-TR pinout, TN805-600B-TR application, or TN805-600B-TR equivalent, key selection criteria include VDRM/VRRM rating, IGT sensitivity level, thermal resistance (Rth(j-c) = 1.3 °C/W), and DPAK surface-mount compatibility for space-constrained industrial controls.
Technical Context
This SCR operates as a unidirectional latching switch triggered by a low-energy gate pulse, sustaining up to 600 V repetitive peak off-state voltage and conducting 8 A RMS under 110 °C case temperature. Its 50 A/µs dl/dt rating ensures robust turn-on immunity against fast current transients in inductive loads.
Designed for phase-controlled AC power regulation, it features 46 mΩ dynamic resistance (Rd) and 0.85 V threshold voltage (Vt0) at 125 °C junction temperature, enabling predictable conduction loss and thermal stability in motor drive and crowbar circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDRM / VRRM | 600 V - Maximum repetitive peak off-state voltage before unintended conduction in blocking mode |
| IT(RMS) | 8 A - Continuous RMS on-state current capability at TC = 110 °C with TO-220FPAB-equivalent thermal path |
| IGT (max) | 5 mA - Maximum gate trigger current required to reliably initiate conduction at 25 °C |
| VTM | 1.6 V - Peak on-state voltage drop at 16 A pulse, defining conduction loss and self-heating under load |
| dl/dt (critical) | 50 A/µs - Minimum rate of rise of on-state current that must be exceeded to ensure reliable turn-on |
| Rth(j-c) | 1.3 °C/W - Junction-to-case thermal resistance for DPAK package, enabling direct heatsink mounting |
| dV/dt (min) | 50 V/µs - Minimum rate of rise of off-state voltage before false triggering, measured with gate open |
Pinout & Package
DPAK (TO-252) package with exposed cathode tab for thermal and electrical connection; 3-terminal surface-mount configuration optimized for automated assembly and PCB-level heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Main current entry terminal | Carries full load current into device; electrically isolated from tab; requires clearance for high-voltage isolation |
| Cathode (K) | Main current exit terminal & thermal interface | Connected to exposed metal tab; serves as primary heat path to PCB copper; common reference for gate drive |
| Gate (G) | Control input for turn-on initiation | Low-energy trigger point; requires ≤5 mA pulse; sensitive to noise-must be routed away from switching nodes |
Key Features
| Feature | Design Value |
|---|---|
| Standard gate sensitivity | IGT ≤ 5 mA enables compatibility with microcontroller GPIO or optocoupler drivers without external amplification |
| High dv/dt immunity | 50 V/µs minimum prevents false triggering in noisy AC line environments such as motor drives and dimmers |
| Optimized thermal performance | Rth(j-c) = 1.3 °C/W allows 8 A RMS operation with minimal heatsinking when mounted on ≥1 cm² copper area |
| Robust surge capability | 73 A non-repetitive surge (tp = 8.3 ms) supports inrush current limiting and short-duration fault handling |
| ECOPACK-compliant packaging | Halogen-free molding compound and lead-free plating meet RoHS and JEDEC J-STD-020 reflow requirements |
Applications
| Overvoltage Crowbar Protection | Power Tool Motor Control |
|---|---|
Use Scenario: Fast-acting shutdown circuit that shorts AC line to ground when regulated DC bus exceeds safe threshold. IC Role / Device Role / Timing Role: Latching high-current switch activated by comparator-driven gate pulse; remains on until AC zero-crossing. Use Value: Prevents damage to downstream SMPS or logic circuitry during transient overvoltage events with <10 µs response latency. |
Use Scenario: Phase-angle controlled speed regulation in universal motor-based corded drills and sanders. IC Role / Device Role / Timing Role: Main power switch in single-phase AC bridge; gated synchronously with line zero-crossing for smooth torque delivery. Use Value: Enables precise 0–100% speed control with low EMI and minimal conduction loss due to 1.6 V VTM at rated current. |
| Inrush Current Limiting | Voltage Regulation Circuits |
Use Scenario: Soft-start for transformer-coupled power supplies or large capacitor banks in industrial equipment. IC Role / Device Role / Timing Role: Series-connected SCR bypassed after initial charge cycle; triggered with delayed phase angle to limit peak input current. Use Value: Reduces stress on rectifiers and fuses by limiting inrush to <2× steady-state current, extending component lifetime. |
Use Scenario: AC line voltage stabilization in laboratory bench supplies or HVAC control panels. IC Role / Device Role / Timing Role: Feedback-controlled phase-triggered switch regulating RMS output voltage via firing angle adjustment. Use Value: Achieves ±1% output regulation accuracy across 10–100% load range using simple analog feedback loop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SCR switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TN815-600B-TR | Higher IGT (15 mA max) and identical VDRM/IT(RMS); same DPAK package and thermal specs | Requires stronger gate drive but offers improved noise immunity in high-interference environments | Select when gate driver can source ≥15 mA and system demands higher dV/dt margin (>150 V/µs) |
| TS820-600B | Sensitive gate (IGT ≤ 0.2 mA), lower VDRM derating at high Tj, same DPAK footprint | Enables direct MCU GPIO triggering but reduced surge robustness (ITSM = 73 A vs. 70 A) | Choose for ultra-low-power control where gate drive energy is constrained and crowbar speed is critical |
Compared with TN805-600B-TR, TN815-600B-TR trades gate drive simplicity for enhanced noise margin, while TS820-600B sacrifices surge ruggedness for microamp-level trigger sensitivity-making TN805 the balanced choice for general-purpose industrial AC switching.
Availability
TN805-600B-TR is available at Aetrix Electronics and suitable for overvoltage crowbar protection, power tool motor control, and inrush current limiting requiring stable component supply, full traceability, and long-term industrial lifecycle support.
Supply support for TN805-600B-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, and microcontroller solutions for industrial, automotive, and consumer markets.
TN805 belongs to ST's standard-sensitivity 8 A SCR family, engineered for cost-effective, thermally efficient AC power control in space-constrained industrial equipment where reliability and manufacturability are critical.
FAQ
What is the maximum junction temperature for continuous operation?
The TN805-600B-TR has an operating junction temperature range of –40 °C to +125 °C. For continuous 8 A RMS conduction, case temperature must not exceed 110 °C per absolute ratings table; this requires maintaining Rth(j-a) ≤ 70 °C/W with ≥1 cm² copper pad on FR4 PCB.
Can TN805-600B-TR replace TS820-600B in a sensitive-gate design?
No-TN805-600B-TR requires up to 5 mA gate current, whereas TS820-600B triggers with ≤0.2 mA. Substituting TN805 risks failed turn-on unless the gate driver is redesigned to deliver higher current and withstand higher VGT (1.3 V vs. 0.8 V).
Is the DPAK package lead-free and RoHS compliant?
Yes-the TN805-600B-TR uses a halogen-free epoxy molding compound meeting UL94 V0 flammability standard, and its leads are plated with lead-free matte tin per JEDEC J-STD-020, fully compliant with RoHS Directive 2011/65/EU.
What is the recommended gate resistor value for reliable triggering?
A 220 Ω gate resistor is specified in ST's characterization tests (Table 3). With 12 V gate drive, this delivers ~54 mA peak current-well above the 5 mA IGT max-and limits di/dt to prevent gate damage while ensuring clean turn-on across temperature.
TN805-600B-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- 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):
- 5 A
- Current - On State (It (RMS)) (Max):
- 8 A
- Current - Hold (Ih) (Max):
- 25 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
TN805-600B-TR FAQ
1.How can I place an order for TN805-600B-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for TN805-600B-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 TN805-600B-TR reliable?
The price and inventory of TN805-600B-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TN805-600B-TR is usually 5 days.
3.What payment methods are accepted for TN805-600B-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TN805-600B-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TN805-600B-TR?
TN805-600B-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TN805-600B-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 TN805-600B-TR?
For technical support, including TN805-600B-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TN805-600B-TR requirements.
6.How does Aetrix verify that TN805-600B-TR is sourced from the original manufacturer or authorized distributors?
All TN805-600B-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 TN805-600B-TR meets industry standards.
7.What is the process for return or replacement of TN805-600B-TR?
All TN805-600B-TR units undergo pre-shipment inspection (PSI). If there is an issue with TN805-600B-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 TN805-600B-TR part is unused and in its original packaging.
Return procedure for TN805-600B-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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