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Vishay General Semiconductor - Diodes Division VS-ST300C20C0L
- Part No.:
- VS-ST300C20C0L
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- SCRs
- Package:
- TO-200AB, E-PUK
- Datasheet:
-
VS-ST300C20C0L.pdf
- Description:
- SCR 2KV 1290A TO200AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,654
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Product details
Overview
VS-ST300C20C0L 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, 2000 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, high-voltage power switching.
For engineers reviewing the VS-ST300C20C0L datasheet, VS-ST300C20C0L pinout, VS-ST300C20C0L application, or VS-ST300C20C0L equivalent, key selection criteria include verified VRRM = 2000 V, IT(AV) = 650 A at 55 °C heatsink, dV/dt rating of 500 V/µs, gate trigger current IGT = 100 mA at 25 °C, and thermal resistance RthJ-hs = 0.04 K/W (double-side cooled).
Technical Context
This SCR uses a single-junction, planar-diffused silicon structure with center-gate geometry optimized for high di/dt immunity (1000 A/µs) and robust commutation in phase-controlled rectification. Its E-PUK package enables direct mounting to liquid-cooled or forced-air heatsinks via 9800 N clamping force, supporting both single- and double-side cooling configurations.
The device is characterized for sinusoidal half-wave conduction at 50/60 Hz, with validated I²t ratings of 320 kA²s (50 Hz, no voltage reapplied) and 226 kA²s (50 Hz, 100 % VRRM reapplied), ensuring reliable surge withstand in motor drive and power supply fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IT(AV) | 650 A at 55 °C heatsink temperature, 180° conduction, double-side cooled - defines continuous DC or rectified load current capability under thermal design constraints |
| VRRM | 2000 V maximum repetitive peak reverse voltage - sets maximum AC line voltage compatibility for 3-phase 1150 Vrms systems with safety margin |
| VTM | 2.18 V at 1635 A peak sine pulse, TJ = 125 °C - determines conduction loss and heatsink sizing for 1.2 MW-class power stages |
| tq | 100 µs typical turn-off time under ITM = 300 A, dI/dt = 40 A/µs, VR = 50 V - constrains minimum commutation interval in forced-commutated inverters |
| dV/dt | 500 V/µs critical rate of rise of off-state voltage - requires snubber design to prevent false triggering in high-dV/dt AC line environments |
| IGT | 100 mA maximum gate trigger current at TJ = 25 °C - defines minimum driver output capability for reliable turn-on across temperature range |
| RthJ-hs | 0.04 K/W (double-side cooled, DC) - enables 1290 A RMS current handling with ≤5.2 K temperature rise from junction to heatsink |
Pinout & Package
E-PUK (TO-200AB) metal case with ceramic insulator, 42 mm max diameter, 28 mm height, 9800 N mounting force, 83 g mass. Anode (A), Cathode (C), and Gate (G) terminals are physically isolated; gate terminal accepts 1.47 mm diameter pin receptacle per Vishay doc #95075.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Main current entry path during forward conduction | High-current copper alloy surface directly bonded to silicon die; requires low-impedance heatsink interface for thermal management |
| Cathode (C) | Main current exit path during forward conduction | Electrically isolated from case; auxiliary cathode lead (soldered per "0L" suffix) provides separate low-inductance return for gate control circuitry |
| Gate (G) | Control electrode initiating conduction | Center-amplifying gate structure enables uniform turn-on; requires <20 V, <3 A pulsed drive with tr ≤ 1 µs for full di/dt rating |
Key Features
| Feature | Design Value |
|---|---|
| Center-amplifying gate | Enables uniform silicon turn-on across large die area, supporting 1000 A/µs dI/dt without localized hot-spot formation |
| Metal-ceramic E-PUK package | Provides hermetic isolation, 0.01 K/W RthC-hs (double-side cooled), and mechanical stability under 9800 N clamping force |
| Industrial qualification | Validated for continuous operation at TJ = 125 °C and storage up to 150 °C, meeting IEC 60747-6 for power semiconductor reliability |
| High I²t fusing rating | 320 kA²s (50 Hz, no voltage reapplied) allows coordination with upstream 100 kA symmetrical breakers in medium-voltage drives |
| Low thermal resistance | RthJ-hs = 0.04 K/W (DC, double-side cooled) supports >1.2 MW conduction loss dissipation with <5 K thermal gradient |
Applications
| Industrial AC Motor Drives | High-Power DC Power Supplies |
|---|---|
|
Use Scenario: Three-phase phase-controlled rectifier feeding wound-rotor induction motor in mining conveyor system. IC Role / Device Role / Timing Role: Main power switching element in semi-controlled bridge, triggered at variable firing angles to regulate armature voltage. Use Value: 2000 V VRRM rating accommodates 690 VAC line with 2× safety margin; 650 A IT(AV) sustains 400 kW continuous output with forced-air heatsinking. |
Use Scenario: Electrolytic aluminum smelting rectifier operating at 120 kA DC output with 12-pulse transformer input. IC Role / Device Role / Timing Role: Series-connected SCR in 12-pulse valve stack, commutated by transformer leakage reactance. Use Value: 320 kA²s I²t rating ensures survival during 50 ms short-circuit events; 100 µs tq enables precise 30°–150° firing angle control. |
| Medium-Voltage AC Controllers | Static VAR Compensators (SVC) |
|
Use Scenario: 4.16 kV distribution-level soft starter for 5 MW pump motor. IC Role / Device Role / Timing Role: Back-to-back connected thyristor pair controlling voltage ramp during motor acceleration. Use Value: 500 V/µs dV/dt rating prevents false triggering from steep-fronted transients on utility feeders; metal-ceramic package withstands 15 kV impulse tests. |
Use Scenario: Thyristor-Controlled Reactor (TCR) branch in 35 kV substation SVC for reactive power regulation. IC Role / Device Role / Timing Role: Phase-angle controlled reactor current modulation to inject controllable lagging VARs into grid. Use Value: 1290 A IT(RMS) rating supports 100 MVAR TCR branch; center-gate design ensures symmetric conduction for balanced harmonic cancellation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar phase-control thyristor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXYS M502LA2000 | 2000 V VRRM, 500 A IT(AV), TO-200AC (E-PUK variant), RthJ-hs = 0.05 K/W (double-side) | Lower current rating; requires parallel devices for 650 A designs; identical voltage and thermal envelope | Select when lower conduction loss at partial load is prioritized over peak current headroom |
| Powerex Q8025LH20 | 2000 V VRRM, 800 A IT(AV), TO-200AB (E-PUK), RthJ-hs = 0.035 K/W (double-side), tq = 85 µs | Higher current and faster turn-off; larger heatsink interface area; not drop-in due to different gate sensitivity (IGT = 75 mA) | Choose for new designs needing higher overload capacity and tighter commutation timing; verify gate driver compliance |
Compared with VS-ST300C20C0L, M502LA2000 offers identical voltage rating but reduced current headroom, while Q8025LH20 delivers higher IT(AV) and faster tq at the cost of revised gate drive requirements and non-interchangeable mounting footprint.
Availability
VS-ST300C20C0L is available at Aetrix Electronics and suitable for industrial AC motor drives, high-power DC power supplies, and medium-voltage AC controllers requiring stable component supply through December 2024 end-of-life transition.
Supply support for VS-ST300C20C0L 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 is a global leader in discrete semiconductors, specializing in high-reliability power devices for industrial, automotive, and computing applications.
The VS-ST300C series is part of Vishay's industrial-grade phase-control thyristor family, engineered for ruggedized operation in high-current, high-voltage power conversion systems including motor controls and static power compensation.
FAQ
What is the maximum allowable heatsink temperature for VS-ST300C20C0L at 650 A average current?
The maximum allowable heatsink temperature for VS-ST300C20C0L is 55 °C when operating at its rated 650 A average on-state current under 180° conduction and double-side cooling, as specified in the absolute maximum ratings table. This limit ensures junction temperature remains within the -40 °C to +125 °C operating range. Exceeding 55 °C reduces permissible current linearly per the derating curves in Figure 1 of the datasheet. Thermal design must account for RthJ-hs = 0.04 K/W and transient thermal impedance to avoid exceeding TJ(max) during surge conditions. VS-ST300C20C0L performance is validated only within this thermal envelope.
Does VS-ST300C20C0L support gate-triggered turn-off (GTO) operation?
No, VS-ST300C20C0L is a conventional phase-control thyristor (SCR), not a GTO device. It lacks gate-controlled turn-off capability and requires natural or forced commutation to cease conduction. Turn-off is achieved only when anode current falls below holding current (IH = 600 mA) or reverses polarity. The datasheet specifies tq = 100 µs as the typical turn-off time under defined test conditions, confirming it is a latching device dependent on external circuit commutation. VS-ST300C20C0L must be used in circuits with adequate commutation margin - such as line-commutated rectifiers or LC snubber networks - and cannot be turned off by gate signal alone.
What gate drive parameters are required to reliably trigger VS-ST300C20C0L?
VS-ST300C20C0L requires a gate trigger current IGT ≤ 100 mA at TJ = 25 °C, with gate voltage VGT ≤ 3.0 V. Recommended drive uses 20 V pulse amplitude, 10 Ω series resistance, and rise time tr ≤ 1 µs to achieve full 1000 A/µs dI/dt rating. Peak gate power PGM must not exceed 10 W (tp ≤ 5 ms), and average gate power PG(AV) is limited to 2.0 W at 50 Hz, 50 % duty cycle. Gate drive must also respect IGD ≤ 10 mA and VGD ≤ 0.25 V to prevent false triggering. These values are confirmed in the triggering section of Vishay document #94403. VS-ST300C20C0L gate characteristics are temperature-dependent, with IGT dropping to 50 mA at 125 °C.
Is VS-ST300C20C0L compatible with double-side cooled heatsink mounting?
Yes, VS-ST300C20C0L is explicitly rated for double-side cooled operation, delivering 650 A IT(AV) at 55 °C heatsink temperature and 1290 A IT(RMS) at 25 °C with RthJ-hs = 0.04 K/W. Its E-PUK (TO-200AB) package features symmetrical metal surfaces on both top and bottom, enabling thermal contact to two heatsinks under 9800 N clamping force. Mechanical drawings in Vishay doc #95075 confirm flat, parallel mounting interfaces. Double-side cooling is mandatory to achieve full current rating; single-side operation reduces IT(AV) to 320 A. VS-ST300C20C0L thermal performance is validated only with compliant mounting per specification.
What is the meaning of the "0L" suffix in VS-ST300C20C0L?
The "0L" suffix in VS-ST300C20C0L decodes as follows: "0" indicates eyelet terminals for gate and auxiliary cathode leads, and "L" denotes standard 500 V/µs dV/dt rating (not the high-dV/dt "L" variant, which would be marked separately per ordering table). Per Vishay doc #94403, the "0" termination means unsoldered leads - allowing field-soldering or crimping - while "L" here is part of the base voltage code "20" (20 × 100 = 2000 V VRRM) and not a dV/dt modifier. The device carries standard 500 V/µs dV/dt rating, confirmed in the blocking specifications table. VS-ST300C20C0L ordering code strictly follows Vishay's ST300C..C series format documented in page 6 of #94403.
VS-ST300C20C0L 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:
- 2 kV
- 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-ST300C20C0L FAQ
1.How can I place an order for VS-ST300C20C0L through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-ST300C20C0L 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-ST300C20C0L reliable?
The price and inventory of VS-ST300C20C0L are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-ST300C20C0L is usually 5 days.
3.What payment methods are accepted for VS-ST300C20C0L?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-ST300C20C0L transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-ST300C20C0L?
VS-ST300C20C0L orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-ST300C20C0L 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-ST300C20C0L?
For technical support, including VS-ST300C20C0L datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-ST300C20C0L requirements.
6.How does Aetrix verify that VS-ST300C20C0L is sourced from the original manufacturer or authorized distributors?
All VS-ST300C20C0L 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-ST300C20C0L meets industry standards.
7.What is the process for return or replacement of VS-ST300C20C0L?
All VS-ST300C20C0L units undergo pre-shipment inspection (PSI). If there is an issue with VS-ST300C20C0L, 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-ST300C20C0L part is unused and in its original packaging.
Return procedure for VS-ST300C20C0L:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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