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Vishay General Semiconductor - Diodes Division VS-SD200R20PC
- Part No.:
- VS-SD200R20PC
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Single Diodes
- Package:
- DO-205AC, DO-30, Stud
- Datasheet:
-
VS-SD200R20PC.pdf
- Description:
- DIODE GEN PURP 2KV 200A DO205AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,189
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Product details
Overview
VS-SD200R20PC from Vishay Semiconductors is a standard recovery power diode in stud-mount DO-30 (DO-205AC) package with reverse polarity (anode-to-stud), rated for 200 A average forward current, 2000 V maximum repetitive peak reverse voltage (VRRM), and 4920 A 60 Hz non-repetitive surge current - designed for high-power industrial rectification in medium traction and machine tool control systems.
For engineers reviewing the VS-SD200R20PC datasheet, VS-SD200R20PC pinout, VS-SD200R20PC application, or VS-SD200R20PC equivalent, key selection criteria include its stud-anode configuration, 0.23 K/W junction-to-case thermal resistance, 1.40 V forward voltage at 630 A peak, ceramic housing construction, and compatibility with compression-bonded heatsink mounting per 1/2"-20UNF-2A stud.
Technical Context
This diode operates as a single-element, unidirectional power rectifier optimized for line-frequency (50/60 Hz) AC-to-DC conversion under high-current, high-voltage conditions. Its standard recovery behavior (trr not specified but implied by "0" in device code) supports robust surge handling without fast-switching trade-offs.
Thermal performance is defined by DC-rated RthJC = 0.23 K/W and RthCS = 0.08 K/W with greased flat mounting surface; conduction-angle derating applies - e.g., allowable case temperature drops from 110 °C at 180° to 90 °C at 60° conduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 2000 V - blocks up to 2000 V repetitive reverse voltage, enabling use in 1000 V AC line-fed converters. |
| IF(AV) | 200 A at TC = 110 °C - continuous DC or half-sine average forward current rating under forced-cooled conditions. |
| IFSM | 4920 A at 60 Hz, t = 8.3 ms - withstands short-circuit surges typical in motor drive DC bus faults. |
| RthJC | 0.23 K/W - enables efficient heat transfer from junction to stud base, critical for thermal stability in high-power designs. |
| VFM | 1.40 V at Ipk = 630 A, tp = 10 ms - defines peak forward loss during transient overload, directly impacting thermal stress. |
| Package | DO-30 (DO-205AC) with ceramic housing and 1/2"-20UNF-2A anode stud - provides mechanical robustness and isolation for high-voltage mounting. |
Pinout & Package
VS-SD200R20PC uses a two-terminal stud-mount configuration: the anode is connected to the threaded stud (1/2"-20UNF-2A), and the cathode is accessed via the insulated base plate (ceramic housing). No PCB footprint - mounted directly to heatsink via stud torque (14 Nm ±10%).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode Stud | Positive input terminal | Threaded metal stud (1/2"-20UNF-2A) electrically and thermally coupled to anode; requires insulated mounting hardware. |
| Cathode Base Plate | Negative output terminal | Flat, insulated ceramic surface serving as cathode connection and primary thermal interface to heatsink. |
Key Features
| Feature | Design Value |
|---|---|
| Stud-anode reverse polarity | Enables direct mounting of anode to grounded chassis or heatsink while isolating cathode circuitry. |
| Ceramic housing (C suffix) | Provides >2000 V isolation between terminals and mounting surface, eliminating need for additional insulating washers. |
| Compression-bonded encapsulation | Ensures long-term bond integrity under thermal cycling and mechanical vibration in industrial environments. |
| Industrial qualification | Rated for continuous operation from –40 °C to +150 °C junction temperature, meeting industrial reliability standards. |
Applications
| Medium Traction Rectifiers | Industrial Machine Tool Controls |
|---|---|
Use Scenario: Rectifying 3-phase AC supply in battery-charging systems for electric locomotives and mining vehicles. IC Role / Device Role / Timing Role: Power diode performing uncontrolled line-commutated rectification in 6-pulse bridge configurations. Use Value: High IFSM (4920 A) and VRRM (2000 V) support fault-tolerant operation under rail-grade voltage transients and load dumps. |
Use Scenario: DC bus generation for servo amplifier modules in CNC machining centers. IC Role / Device Role / Timing Role: Main rectifier element converting 480 V AC mains to ~675 V DC bus for IGBT inverter stages. Use Value: Low RthJC (0.23 K/W) and ceramic isolation enable compact, air-cooled designs meeting IP54 enclosure requirements. |
| High-Power DC Drives | Welding Power Supplies |
Use Scenario: Field excitation and armature supply rectification in 200+ kW DC motor drives. IC Role / Device Role / Timing Role: Single-diode element in multi-phase thyristor/diode hybrid rectifiers delivering regulated field current. Use Value: 200 A IF(AV) rating at 110 °C case temperature ensures stable output under sustained 100% duty cycle loads. |
Use Scenario: Primary rectification in resonant inverter-based arc welding power supplies. IC Role / Device Role / Timing Role: High-current freewheeling and main rectification path handling 10–100 ms current pulses up to 630 A peak. Use Value: VFM = 1.40 V at 630 A minimizes conduction loss during high-duty-cycle weld cycles, reducing thermal stress on heatsink. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard recovery diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VS-SD200N20PC | Stud-cathode polarity (cathode-to-stud); otherwise identical VRRM, IF(AV), and thermal specs. | Requires cathode-side grounding; incompatible with anode-grounded topologies without layout revision. | Select VS-SD200N20PC only when cathode must be referenced to chassis ground or heatsink potential. |
| IXYS D200K20 | Same 200 A / 2000 V rating, TO-208AA (SOT-93) package with isolated tab; higher RthJC = 0.30 K/W. | Limited to lower ambient or forced-air cooled systems due to reduced thermal efficiency vs. stud-mount design. | Choose IXYS D200K20 only when PCB-mount integration is required and thermal margin allows 0.07 K/W higher junction rise. |
Compared with VS-SD200R20PC, VS-SD200N20PC offers identical electrical performance but reversed terminal polarity - requiring mechanical redesign if anode grounding is mandatory; IXYS D200K20 trades superior thermal coupling for surface-mount compatibility, limiting usable power density in convection-cooled enclosures.
Availability
VS-SD200R20PC is available at Aetrix Electronics and suitable for medium traction rectifiers, industrial machine tool controls, and high-power DC drives requiring stable component supply, long-lifecycle support, and traceable industrial-grade sourcing.
Supply support for VS-SD200R20PC 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, optoelectronic, and sensing components for industrial, automotive, and computing markets.
The VS-SD200N/R Series was developed specifically for ruggedized, high-current industrial rectification - emphasizing thermal robustness, surge resilience, and mechanical durability in harsh operating environments.
FAQ
What is the polarity configuration of the VS-SD200R20PC?
The "R" in VS-SD200R20PC denotes reverse polarity: the anode is connected to the threaded stud, and the cathode is isolated on the ceramic base plate. This configuration allows direct anode connection to a grounded heatsink or chassis, simplifying thermal and electrical integration in high-voltage rectifier bridges where anode-side grounding is preferred. Always verify mounting insulation per application voltage stress.
What is the maximum allowable case temperature for continuous operation of the VS-SD200R20PC?
The VS-SD200R20PC supports 200 A average forward current at a maximum case temperature (TC) of 110 °C under 180° sinusoidal conduction. At reduced conduction angles - e.g., 90° - the allowable TC drops to 95 °C. Derating curves in Figure 1 of the datasheet (Doc #93541) must be used to determine safe operating limits based on actual waveform duty and thermal interface conditions.
Does the VS-SD200R20PC have a specified reverse recovery time (trr)?
No - the VS-SD200R20PC is classified as a standard recovery diode (indicated by "0" in the device code), and its datasheet does not specify reverse recovery time. It is intended for 50/60 Hz line-frequency applications where fast recovery is unnecessary; using it in high-frequency switching circuits may cause excessive switching losses or voltage overshoot due to uncharacterized trr.
What is the recommended mounting torque for the VS-SD200R20PC stud?
The VS-SD200R20PC specifies a maximum mounting torque of 14 Nm ±10 % for its 1/2"-20UNF-2A anode stud. Torque must be applied to dry (non-lubricated) threads using a calibrated torque wrench. Exceeding this value risks cracking the ceramic housing or deforming the stud, compromising both electrical isolation and thermal contact integrity.
How does the ceramic housing (C suffix) impact insulation performance of the VS-SD200R20PC?
The ceramic housing in VS-SD200R20PC provides reinforced insulation between the anode stud and cathode base plate, rated for ≥2000 V working voltage and capable of withstanding 2500 V non-repetitive peak reverse voltage (VRSM). This eliminates the need for supplemental insulating hardware in most industrial mounting configurations, provided creepage and clearance distances meet system-level safety standards (e.g., IEC 61800-5-1).
VS-SD200R20PC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- DO-205AC, DO-30, Stud
- Packaging:
- Bulk
- Product Status:
- Last Time Buy
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 2000 V
- Current - Average Rectified (Io):
- 200A
- Voltage - Forward (Vf) (Max) @ If:
- 1.4 V @ 630 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 15 mA @ 2000 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Stud Mount
- Supplier Device Package:
- DO-205AC (DO-30)
- Operating Temperature - Junction:
- -40°C ~ 180°C
VS-SD200R20PC FAQ
1.How can I place an order for VS-SD200R20PC through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-SD200R20PC 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-SD200R20PC reliable?
The price and inventory of VS-SD200R20PC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-SD200R20PC is usually 5 days.
3.What payment methods are accepted for VS-SD200R20PC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-SD200R20PC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-SD200R20PC?
VS-SD200R20PC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-SD200R20PC 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-SD200R20PC?
For technical support, including VS-SD200R20PC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-SD200R20PC requirements.
6.How does Aetrix verify that VS-SD200R20PC is sourced from the original manufacturer or authorized distributors?
All VS-SD200R20PC 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-SD200R20PC meets industry standards.
7.What is the process for return or replacement of VS-SD200R20PC?
All VS-SD200R20PC units undergo pre-shipment inspection (PSI). If there is an issue with VS-SD200R20PC, 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-SD200R20PC part is unused and in its original packaging.
Return procedure for VS-SD200R20PC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-SD200R20PC Tags
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