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Vishay General Semiconductor - Diodes Division VS-ST300C08C1
- Part No.:
- VS-ST300C08C1
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- SCRs
- Package:
- TO-200AB, E-PUK
- Datasheet:
-
VS-ST300C08C1.pdf
- Description:
- SCR 800V 1290A TO200AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,547
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Product details
Overview
VS-ST300C08C1 from Vishay Semiconductors is a phase-control thyristor (SCR) in E-PUK (TO-200AB) metal-ceramic package, rated for 650 A average on-state current, 800 V repetitive peak off-state voltage (VRRM), and 2.18 V maximum on-state voltage at 1635 A. It features center-amplifying gate drive, 100 µs typical turn-off time, and operates from -40 °C to +125 °C junction temperature - deployed in industrial AC controllers requiring high-current, line-synchronized switching.
For engineers reviewing the VS-ST300C08C1 datasheet, VS-ST300C08C1 pinout, VS-ST300C08C1 application, or VS-ST300C08C1 equivalent, key selection criteria include verified dI/dt capability (1000 A/µs), thermal resistance (0.04 K/W double-side cooled), gate trigger sensitivity (100 mA max IGT at 25 °C), and E-PUK mechanical mounting compliance (9800 N force).
Technical Context
This SCR uses a planar-diffused silicon structure with center-gate amplification to ensure reliable turn-on under high dV/dt stress (500 V/µs) and high di/dt transients (1000 A/µs). Its blocking capability is validated up to 800 V VRRM with ≤50 mA leakage at TJ = 125 °C, and it sustains 8380 A non-repetitive surge (60 Hz, 8.3 ms) without fusing.
Thermal design relies on direct metal-to-heatsink conduction via the E-PUK case: RthJ-hs is 0.04 K/W under double-side cooling, enabling stable 650 A DC operation at heatsink temperatures up to 75 °C. Gate triggering follows standardized pulse requirements - 20 V/10 Ω with tr ≤ 1 µs - and supports latching current of 1000 mA and holding current of 600 mA at 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(AV) | 650 A average on-state current - supports continuous high-power AC/DC conversion with proper heatsinking |
| VRRM | 800 V repetitive peak reverse voltage - enables use in 400 V AC line-controlled systems with safety margin |
| VTM | 2.18 V max on-state voltage at 1635 A - determines conduction loss and thermal load under full surge |
| tq | 100 µs typical turn-off time - defines minimum commutation interval in forced-commutated inverters |
| dI/dt | 1000 A/µs max rate-of-rise of on-state current - ensures robust turn-on without false triggering under fast transients |
| RthJ-hs | 0.04 K/W (double-side cooled) - sets thermal interface requirement for 650 A operation at ≤75 °C heatsink |
| IGT | 100 mA max gate trigger current at 25 °C - defines driver strength needed for reliable low-energy turn-on |
Pinout & Package
E-PUK (TO-200AB) metal-ceramic package with anode (A), cathode (C), and gate (G) terminals; requires 9800 N mounting force and provides creepage ≥11.18 mm. Case dimensions: 42 mm max height, 40.5 mm max diameter, 25.3 mm anode/cathode pole diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Main power input terminal | Carries full load current into device; electrically isolated from heatsink via ceramic insulator |
| Cathode (C) | Main power output terminal | Delivers controlled current to load; auxiliary cathode lead present per ordering code C1 |
| Gate (G) | Control input terminal | Receives triggering pulse; accepts 20 V/3 A peak gate drive; unsoldered leads per C1 suffix |
Key Features
| Feature | Design Value |
|---|---|
| Center-amplifying gate | Enables uniform turn-on across large-area silicon die, improving dI/dt immunity and current sharing in parallel configurations |
| Metal case with ceramic insulator | Provides 500 V/µs dV/dt immunity and electrical isolation up to 2500 V RMS between terminals and heatsink |
| Industrial qualification | Validated for continuous operation at TJ = 125 °C and storage up to 150 °C - suitable for harsh factory environments |
| E-PUK (TO-200AB) standardization | Ensures mechanical compatibility with legacy industrial heatsinks and mounting hardware per IEC 60747-6 |
| High surge rating | Withstands 8380 A (60 Hz, 8.3 ms) single-cycle surge - supports motor-start and transformer-inrush applications |
Applications
| DC Motor Control | AC Power Controller |
|---|---|
|
Use Scenario: Speed regulation of industrial DC motors using phase-controlled rectifier bridges. IC Role / Device Role / Timing Role: Main switching element in 3-phase or single-phase thyristor bridge, triggered synchronously with AC line zero-crossing. Use Value: Delivers 650 A average current with <2.2 V conduction drop, minimizing heat generation during continuous torque demand. |
Use Scenario: Adjustable heating power in industrial ovens and furnaces via AC voltage control. IC Role / Device Role / Timing Role: Line-synchronized AC switch operating in half-wave or full-wave phase-angle mode. Use Value: Sustains 800 V blocking with ≤50 mA leakage at 125 °C, ensuring stable dimming over extended thermal cycles. |
| Controlled DC Power Supply | Static VAR Compensator (SVC) |
|
Use Scenario: High-current DC output for electroplating, welding, or battery charging systems. IC Role / Device Role / Timing Role: Primary rectifying switch in dual-converter or circulating-current topology. Use Value: Supports 1290 A RMS current rating and 320 kA²s I²t rating - withstands repeated short-duration overloads. |
Use Scenario: Reactive power compensation in medium-voltage distribution networks using thyristor-switched capacitors. IC Role / Device Role / Timing Role: Fast-turn-off switching element synchronized to grid voltage for precise VAR injection timing. Use Value: 100 µs tq and 1000 A/µs dI/dt enable sub-cycle reactive power step response without commutation failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phase-control thyristor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST300C08C1 | Same base device; VS- prefix denotes Vishay's branded version with traceable sourcing and EOL support path | No functional difference; identical electrical specs, package, and pinout | Select VS-ST300C08C1 for guaranteed Vishay channel availability and documented EOL transition assistance through December 2024 |
| TT330N08KOF | Higher IT(AV) = 330 A, lower VRRM = 800 V, but TO-200AA (E-PUK variant) with different thermal resistance (RthJ-hs = 0.05 K/W) | Not scalable to 650 A loads; requires derating in same heatsink footprint | Consider only for lower-current retrofit where board space and mounting match, not as direct replacement |
Compared with ST300C08C1 and TT330N08KOF, VS-ST300C08C1 delivers full 650 A IT(AV) with optimized thermal resistance (0.04 K/W) and Vishay's documented EOL support path - critical for sustaining production of high-power industrial controls beyond 2024.
Availability
VS-ST300C08C1 is available at Aetrix Electronics and suitable for DC motor controls, AC power controllers, and controlled DC power supplies requiring stable component supply amid announced end-of-life status.
Supply support for VS-ST300C08C1 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
Vishay Semiconductors designs and manufactures discrete semiconductors including diodes, thyristors, MOSFETs, and optoelectronics, with emphasis on reliability, power handling, and industrial-grade qualification.
The VS-ST300C08C1 belongs to Vishay's ST300C series of phase-control thyristors engineered for high-current industrial power conversion - targeting applications demanding ruggedness, thermal stability, and long-term manufacturability in harsh environments.
FAQ
What is the maximum allowable heatsink temperature for VS-ST300C08C1 at 650 A average current with double-side cooling?
The maximum allowable heatsink temperature for VS-ST300C08C1 operating at 650 A IT(AV) with double-side cooling is 75 °C. This value derives directly from the datasheet's Fig. 4 curves and is confirmed by the absolute maximum rating table specifying 650 A at Ths = 75 °C for double-side cooled operation. Maintaining heatsink temperature at or below this threshold ensures junction temperature remains within the -40 °C to +125 °C operational limit. VS-ST300C08C1 must be mounted with 9800 N force to achieve the specified 0.04 K/W RthJ-hs.
Does VS-ST300C08C1 support fast-on or eyelet terminals, and how is this indicated in the part number?
VS-ST300C08C1 uses fast-on terminals, as indicated by the final digit "1" in the part number. Per Vishay's ordering information table, position 7 defines terminal type: "0" = eyelet (unsoldered), "1" = fast-on (unsoldered), "2" = eyelet (soldered), "3" = fast-on (soldered). The "C1" suffix confirms unsoldered fast-on leads for both gate and auxiliary cathode. This configuration simplifies field replacement and avoids solder joint fatigue in high-vibration environments where VS-ST300C08C1 is commonly deployed.
What is the gate trigger voltage range for VS-ST300C08C1 at different junction temperatures?
The gate trigger voltage (VGT) for VS-ST300C08C1 ranges from 1.1 V (max at TJ = 125 °C) to 2.5 V (max at TJ = -40 °C), with 1.8 V to 3.0 V specified at TJ = 25 °C. These values are measured with 12 V anode-to-cathode bias and define the upper bound of gate voltage required to guarantee turn-on across the full temperature range. VS-ST300C08C1 also specifies VGD ≤ 0.25 V to prevent false triggering - a critical parameter when designing noise-immune gate drive circuits for industrial settings.
How does the 100 µs typical turn-off time (tq) of VS-ST300C08C1 impact commutation circuit design?
The 100 µs typical turn-off time (tq) of VS-ST300C08C1 sets the minimum off-period required before reapplied voltage to avoid commutation failure. In practice, designers must allow ≥300 µs dead time in forced-commutated inverters or line-commutated converters to accommodate process variation and temperature drift. This tq value - measured at ITM = 300 A, TJ = max, and dI/dt = 40 A/µs - directly determines snubber sizing and auxiliary circuit complexity. VS-ST300C08C1's tq enables reliable operation in 50/60 Hz AC controllers but limits use in >1 kHz switching topologies.
Is VS-ST300C08C1 RoHS-compliant and what material classification applies?
Yes, VS-ST300C08C1 is RoHS-compliant per Vishay's material categorization documentation (www.vishay.com/doc?99912). It falls under Vishay's "Green" material classification, meaning it contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE), and complies with EU Directive 2011/65/EU. The E-PUK package uses lead-free solderable terminations and halogen-free encapsulation - confirmed in the product's official compliance statements linked from the Vishay website. VS-ST300C08C1 meets these requirements without derating or performance trade-offs.
VS-ST300C08C1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- TO-200AB, E-PUK
- Packaging:
- Bulk
- Product Status:
- Last Time Buy
- Voltage - Off State:
- 800 V
- Voltage - Gate Trigger (Vgt) (Max):
- 3 V
- Current - Gate Trigger (Igt) (Max):
- 200 mA
- Voltage - On State (Vtm) (Max):
- 2.18 V
- Current - On State (It (AV)) (Max):
- 650 A
- Current - On State (It (RMS)) (Max):
- 1290 A
- Current - Hold (Ih) (Max):
- 600 mA
- Current - Off State (Max):
- 50 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm):
- 6730A, 7040A
- SCR Type:
- Standard Recovery
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Clamp On
- Supplier Device Package:
- TO-200AB (E-Puk)
VS-ST300C08C1 FAQ
1.How can I place an order for VS-ST300C08C1 through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-ST300C08C1 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 VS-ST300C08C1 reliable?
The price and inventory of VS-ST300C08C1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-ST300C08C1 is usually 5 days.
3.What payment methods are accepted for VS-ST300C08C1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-ST300C08C1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-ST300C08C1?
VS-ST300C08C1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-ST300C08C1 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 VS-ST300C08C1?
For technical support, including VS-ST300C08C1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-ST300C08C1 requirements.
6.How does Aetrix verify that VS-ST300C08C1 is sourced from the original manufacturer or authorized distributors?
All VS-ST300C08C1 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 VS-ST300C08C1 meets industry standards.
7.What is the process for return or replacement of VS-ST300C08C1?
All VS-ST300C08C1 units undergo pre-shipment inspection (PSI). If there is an issue with VS-ST300C08C1, 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 VS-ST300C08C1 part is unused and in its original packaging.
Return procedure for VS-ST300C08C1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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