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STMicroelectronics TS820-600B
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- Part No.:
- TS820-600B
- Manufacturer:
- STMicroelectronics
- Category:
- SCRs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
TS820-600B.pdf
- Description:
- SCR 600V 8A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,177
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Product details
Overview
TS820-600B from STMicroelectronics is a sensitive-gate 8 A, 600 V silicon-controlled rectifier (SCR) in DPAK package, designed for precise low-current triggering (IGT ≤ 200 µA) and fast dV/dt immunity (≥5 V/µs at Tj = 125 °C), with on-state voltage of 1.6 V at 16 A and thermal resistance Rth(j-c) of 1.3 °C/W - used in overvoltage crowbar protection circuits requiring rapid, reliable latching under transient stress.
For engineers reviewing the TS820-600B datasheet, TS820-600B pinout, TS820-600B application, or TS820-600B equivalent, key selection criteria include gate sensitivity (200 µA max), junction-to-case thermal resistance (1.3 °C/W), repetitive peak off-state voltage (600 V), RMS on-state current rating (8 A), and DPAK surface-mount compatibility for compact power control designs.
Technical Context
The TS820-600B operates as a unidirectional thyristor with sensitive gate triggering, enabling reliable turn-on with sub-milliampere gate currents. Its dV/dt immunity exceeds 5 V/µs at 125 °C with RGK = 220 Ω, and it sustains non-repetitive surge current up to 73 A (tp = 8.3 ms) at 25 °C junction temperature.
It features low dynamic resistance (46 mΩ) and threshold voltage (0.85 V at 125 °C), supporting efficient conduction in high-reliability crowbar and inrush limiting applications. The device uses planar passivated silicon technology and is qualified per industrial temperature range (–40 to +125 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(RMS) | 8 A - continuous RMS load current capability at TC = 110 °C in TO-220FPAB; derates to ~5 A in DPAK at same case temp |
| VDRM / VRRM | 600 V - maximum repetitive peak off-state voltage blocking capability in forward/reverse direction |
| IGT (max) | 200 µA - maximum gate trigger current required at VD = 12 V, RL = 140 Ω, enabling microcontroller-level drive |
| dV/dt (min) | 5 V/µs - minimum critical rate of rise of off-state voltage before spurious turn-on, tested at 125 °C |
| VTM (max) | 1.6 V - maximum on-state voltage drop at ITM = 16 A, tp = 380 µs, defining conduction loss at peak pulse |
| Rth(j-c) | 1.3 °C/W - junction-to-case thermal resistance (DPAK), enabling ~6.2 W steady-state power dissipation at ΔT = 8 °C |
| Tj operating range | –40 to +125 °C - full industrial temperature operation without derating for gate sensitivity or holding current |
Pinout & Package
DPAK (TO-252) package: three-terminal surface-mount outline with exposed cathode tab for thermal and electrical connection; lead-free, halogen-free molding compound compliant with UL94 V0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Main current entry terminal | Carries full load current into device; electrically isolated from tab; requires PCB copper area for thermal management |
| Cathode (K) | Main current exit terminal & thermal path | Connected to exposed metal tab; serves as primary heat sink interface and return path for load current |
| Gate (G) | Control input for turn-on initiation | Sensitive low-current input (≤200 µA); requires noise-immune routing and local decoupling to prevent false triggering |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low gate trigger current | 200 µA max enables direct drive from low-power MCUs or logic gates without buffer stages |
| High dV/dt immunity | 5 V/µs minimum at 125 °C ensures robust operation in noisy switching environments (e.g., motor commutation) |
| Low on-state voltage | 1.6 V max at 16 A reduces conduction losses and thermal stress in crowbar and regulation circuits |
| Optimized thermal performance | 1.3 °C/W Rth(j-c) in DPAK allows >6 W continuous dissipation with minimal heatsinking |
| Industrial temperature range | –40 to +125 °C operation maintains IGT and IH stability across automotive and industrial ambient conditions |
Applications
| Overvoltage Crowbar Protection | Capacitive Discharge Ignition (CDI) |
|---|---|
Use Scenario: Fast-acting short-circuit triggered by overvoltage detection circuit to protect downstream DC bus from transient surges. IC Role / Device Role / Timing Role: Latching power switch that clamps rail voltage by diverting current to ground upon gate activation. Use Value: Sub-200 µA gate sensitivity ensures reliable triggering from comparator outputs; 600 V VDRM withstands typical 400–500 V DC bus transients. | Use Scenario: High-voltage spark generation in small-engine ignition systems using stored capacitor energy. IC Role / Device Role / Timing Role: High-speed, high-current switch releasing capacitor charge through ignition coil primary winding. Use Value: 73 A non-repetitive surge rating supports single-pulse discharge; 1.6 V VTM minimizes energy loss during conduction phase. |
| Inrush Current Limiting | Voltage Regulation Circuits |
Use Scenario: Controlled turn-on of bulk capacitors in power supplies to limit peak charging current. IC Role / Device Role / Timing Role: Series-connected SCR gated after soft-start delay to bypass NTC thermistor or series resistor. Use Value: 8 A IT(RMS) handles sustained load current post-inrush; DPAK footprint enables compact placement near input stage. | Use Scenario: Phase-angle controlled AC voltage regulation in heating elements or lamp dimmers. IC Role / Device Role / Timing Role: Half-wave or full-wave AC line switch synchronized to zero-crossing for adjustable power delivery. Use Value: 5 V/µs dV/dt immunity prevents false triggering from line harmonics; 125 °C max Tj supports enclosed thermal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SCR switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS820-600H | Same electrical specs but IPAK package (Rth(j-c) = 1.3 °C/W, higher mass, larger footprint) | Better thermal inertia for pulsed loads; less suitable for ultra-compact layouts | Select when board space permits larger package and higher mechanical robustness is needed |
| TS820-600T | Same electrical specs but TO-220AB through-hole package (Rth(j-c) = 1.3 °C/W, screw-mount compatible) | Enables forced-air heatsinking and manual assembly; not SMT-compatible | Select for prototyping, repair, or legacy through-hole designs requiring mechanical mounting |
Compared with TS820-600H and TS820-600T, the TS820-600B offers identical electrical performance in the smallest surface-mount footprint (DPAK), delivering optimal PCB area efficiency and automated assembly compatibility without sacrificing thermal or surge capability.
Availability
TS820-600B is available at Aetrix Electronics and suitable for overvoltage crowbar protection, capacitive discharge ignition, and inrush current limiting applications requiring stable component supply, long-term industrial lifecycle support, and consistent parametric performance across manufacturing lots.
Supply support for TS820-600B 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, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.
The TS820 series belongs to ST's high-reliability SCR product line, engineered specifically for sensitive-gate, low-trigger-current power control in safety-critical protection and timing circuits.
FAQ
What is the maximum gate trigger current (IGT) specification for TS820-600B?
The maximum gate trigger current is 200 µA at VD = 12 V and RL = 140 Ω, measured at Tj = 25 °C. This value increases slightly with junction temperature but remains ≤ 1.4×200 µA up to 125 °C per Figure 6 in DS2118, confirming robust low-current drive capability across its full operating range.
Can TS820-600B be used in AC phase-control applications?
Yes - TS820-600B supports half-wave and full-wave AC phase-angle control due to its 600 V VDRM/VRRM rating, 5 V/µs dV/dt immunity at 125 °C, and stable holding current (IH ≤ 5 mA). It is explicitly cited in the datasheet for voltage regulation circuits, and its gate sensitivity allows synchronization with zero-crossing detectors using minimal drive power.
What is the thermal resistance junction-to-ambient (Rth(j-a)) for TS820-600B in standard PCB layout?
For the DPAK package (TS820-600B), Rth(j-a) is 70 °C/W on FR4 with S = 0.5 cm² copper area under the tab, per Table 4. With increased copper (e.g., 10 cm²), Rth(j-a) improves to ~35 °C/W (Figure 14), enabling ~3.5 W continuous dissipation at 80 °C ambient with 125 °C max junction temperature.
Does TS820-600B require a snubber circuit in inductive load switching?
A snubber is recommended for inductive loads to suppress voltage spikes exceeding 600 V during turn-off. While the device has 5 V/µs dV/dt immunity, inductive kickback can exceed this limit; a typical RC snubber (e.g., 100 Ω + 100 nF) across anode-cathode limits dv/dt and protects against commutation failure, especially at high operating temperatures.
TS820-600B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tube
- Product Status:
- Active
- Voltage - Off State:
- 600 V
- Voltage - Gate Trigger (Vgt) (Max):
- 800 mV
- Current - Gate Trigger (Igt) (Max):
- 200 µA
- 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):
- 5 mA
- Current - Off State (Max):
- 5 µA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 70A, 73A
- SCR Type:
- Sensitive Gate
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
TS820-600B FAQ
1.How can I place an order for TS820-600B through Aetrix?
Please submit a Request for Quotation (RFQ) for TS820-600B 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 TS820-600B reliable?
The price and inventory of TS820-600B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS820-600B is usually 5 days.
3.What payment methods are accepted for TS820-600B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS820-600B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS820-600B?
TS820-600B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS820-600B 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 TS820-600B?
For technical support, including TS820-600B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS820-600B requirements.
6.How does Aetrix verify that TS820-600B is sourced from the original manufacturer or authorized distributors?
All TS820-600B 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 TS820-600B meets industry standards.
7.What is the process for return or replacement of TS820-600B?
All TS820-600B units undergo pre-shipment inspection (PSI). If there is an issue with TS820-600B, 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 TS820-600B part is unused and in its original packaging.
Return procedure for TS820-600B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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