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Vishay General Semiconductor - Diodes Division VS-VSKD166/14PBF
- Part No.:
- VS-VSKD166/14PBF
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- INT-A-Pak
- Datasheet:
-
VS-VSKD166/14PBF.pdf
- Description:
- DIODE MOD GP 1400V 82.5A INTAPAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,804
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Product details
Overview
VS-VSKD166/14PBF from Vishay Semiconductors is a high-voltage, standard-recovery power diode module in INT-A-PAK package, configured as a two-diode doubler circuit, rated for 165 A average forward current (IF(AV)), 400 V maximum repetitive peak reverse voltage (VRRM), and 3500 VRMS isolation. It uses glass-passivated chips mounted on DBC ceramic (Al₂O₃) for electrical isolation and thermal performance, and is UL approved (E78996) for industrial power conversion systems.
For engineers reviewing the VS-VSKD166/14PBF datasheet, VS-VSKD166/14PBF pinout, VS-VSKD166/14PBF application, or VS-VSKD166/14PBF equivalent, this module supports high-surge, high-current DC motor drives, battery chargers, welders, and single-phase bridge converters requiring robust thermal management, galvanic isolation, and stable conduction at 100 °C case temperature.
Technical Context
The VS-VSKD166/14PBF implements a two-diode doubler configuration - two series-connected diodes sharing a common terminal - enabling voltage-doubling rectification in high-power AC-to-DC conversion. Its DBC Al₂O₃ substrate provides 3500 VRMS insulation between circuit and baseplate, supporting safe operation in grounded-heatsink topologies.
Thermally, it delivers 0.20 K/W junction-to-case resistance per diode under DC operation, with low on-state slope resistances (rt1 = 1.5 mΩ, rt2 = 1.26 mΩ) and threshold voltages (VF(TO)1 = 0.73 V, VF(TO)2 = 0.88 V) optimized for high-efficiency conduction at IF(AV) = 165 A and TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 165 A - maximum average forward current at 100 °C case temperature, defining continuous DC output capability in rectifier bridges |
| VRRM | 400 V - maximum repetitive peak reverse voltage, sets safe blocking margin for 280 V RMS AC input applications |
| IFSM (t = 10 ms) | 4000 A - non-repetitive surge current rating, supports short-circuit withstand in welder and motor drive fault conditions |
| RthJC | 0.20 K/W per junction - thermal resistance from junction to case, enables 33 W max power dissipation per diode at ΔT = 6.6 K |
| VFM | 1.43 V - forward voltage drop at π × IF(AV) ≈ 518 A and 25 °C, directly determining conduction loss in high-current switching cycles |
| IRRM | 20 mA at 150 °C - peak reverse leakage current, critical for thermal stability in high-temperature battery charger hold-off stages |
| VINS | 3500 VRMS - RMS insulation voltage between terminals and baseplate, satisfies safety isolation requirements for Class I industrial equipment |
Pinout & Package
VS-VSKD166/14PBF uses the INT-A-PAK industrial power module package: 94.4 mm × 36.6 mm × 23 mm metal baseplate with three M6 mounting screws, DBC Al₂O₃ ceramic isolation, and four external terminals (A1, K1, A2, K2) arranged in a doubler configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode of Diode 1 | Input terminal for first diode in doubler chain; connects to AC line or transformer secondary |
| K1 / A2 | Cathode of Diode 1 / Anode of Diode 2 | Interconnection node - carries full output current and defines mid-point voltage in doubler topology |
| K2 | Cathode of Diode 2 | Output terminal - delivers doubled DC voltage referenced to system ground or heatsink |
| Baseplate | Isolated thermal path & safety ground reference | Electrically isolated via 3500 VRMS DBC ceramic; mounts directly to heatsink without insulating washer |
Key Features
| Feature | Design Value |
|---|---|
| DBC Al₂O₃ isolation | Enables direct-mount heatsinking while maintaining 3500 VRMS safety barrier - eliminates need for isolating pads or bushings |
| Two-diode doubler configuration | Provides 2× input AC peak voltage at output without center-tapped transformer - reduces transformer size/cost in high-voltage battery chargers |
| High surge capability (4000 A IFSM) | Withstands 10 ms half-sine surges during welder arc ignition or motor startup, reducing need for external crowbar protection |
| Glass-passivated chips | Ensures long-term reliability under humidity, thermal cycling, and high dv/dt stress in industrial converter environments |
| UL approval (E78996) | Validates compliance with UL 60950-1/IEC 62368-1 for end-equipment safety certification - accelerates regulatory approval timelines |
Applications
| DC Motor Drives | Battery Chargers |
|---|---|
Use Scenario: High-power 3-phase rectification feeding SCR or IGBT inverter stages for industrial servo motors. IC Role / Device Role / Timing Role: Doubler-configured diode module serves as front-end voltage-boosting rectifier, doubling AC line voltage before DC link filtering. Use Value: Enables higher DC bus voltage from same transformer, improving inverter efficiency and torque density without increasing transformer VA rating. |
Use Scenario: Off-board EV charger or telecom backup system converting 230 VAC to 800 VDC for Li-ion stack charging. IC Role / Device Role / Timing Role: VS-VSKD166/14PBF operates as doubler rectifier in active front-end stage, delivering regulated high-voltage DC output. Use Value: Achieves 800 V output from 230 VAC input using single-stage doubler - avoids complexity and losses of dual-stage PFC + boost architectures. |
| Welding Power Supplies | Industrial Power Converters |
Use Scenario: Inverter-based arc welder with dynamic current control requiring fast recovery and high surge tolerance. IC Role / Device Role / Timing Role: VS-VSKD166/14PBF functions as main rectifier in primary-side AC-DC conversion, handling intermittent 4000 A surges during arc strike. Use Value: Sustains repeated 10 ms surges without thermal runaway or parameter drift, extending service life in high-duty-cycle welding cycles. |
Use Scenario: Medium-voltage UPS or renewable energy interface converting generator/microgrid AC to stabilized DC for battery storage. IC Role / Device Role / Timing Role: Doubler module provides isolated, high-current DC output with minimal conduction loss (1.43 V @ 518 A) at ambient up to 70 °C. Use Value: Low RthJC (0.20 K/W) and high IF(RMS) (260 A) allow compact heatsink design while maintaining <150 °C junction temperature under full load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, high-voltage doubler diode module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXYS MDD165-16N1 | 165 A / 1600 V, TO-247-3L single-diode; requires external doubler wiring and separate isolation | Lacks integrated doubler topology and DBC isolation - needs additional PCB layout, insulators, and thermal interface layers | Select when higher VRRM (>1000 V) is required and board space allows discrete implementation with custom isolation |
| Vishay VS-VSKJ166/14PBF | Same IF(AV)/VRRM ratings but common-anode dual-diode configuration (not doubler); identical INT-A-PAK footprint and thermal specs | Suitable for full-wave bridge legs or parallel diode arrays - not usable in voltage-doubling topologies without circuit redesign | Choose for bridge rectifier designs where anode-common pairing simplifies gate drive or snubber layout, not for doubler circuits |
Compared with IXYS MDD165-16N1, VS-VSKD166/14PBF integrates the doubler function and DBC isolation in one package, reducing BOM count and assembly risk; versus VS-VSKJ166/14PBF, it delivers unique voltage multiplication capability but cannot substitute in common-anode bridge configurations.
Availability
VS-VSKD166/14PBF is available at Aetrix Electronics and suitable for DC motor drives, battery chargers, and welding power supplies requiring stable component supply, long-lifecycle support, and certified industrial-grade isolation.
Supply support for VS-VSKD166/14PBF 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 and passive components, specializing in high-reliability power devices for industrial, automotive, and computing markets.
The VS-VSK series targets high-power industrial rectification, designed specifically for voltage-doubling, welder, and motor drive applications where galvanic isolation, surge resilience, and thermal robustness are mandatory.
FAQ
What is the circuit configuration of VS-VSKD166/14PBF?
VS-VSKD166/14PBF is configured as a two-diode doubler circuit: Diode 1 anode (A1) and Diode 2 cathode (K2) are external terminals, while Diode 1 cathode and Diode 2 anode share the internal node (K1/A2). This topology enables AC voltage doubling without a center-tapped transformer, and is confirmed in Vishay document 94357, Figure "CIRCUIT CONFIGURATION" and ordering code 'D'.
Does VS-VSKD166/14PBF require an insulating pad when mounted to a heatsink?
No, VS-VSKD166/14PBF does not require an insulating pad. Its DBC Al₂O₃ ceramic substrate provides 3500 VRMS isolation between all terminals and the metal baseplate, allowing direct mounting to an electrically grounded heatsink - a key feature verified in the "FEATURES" section and thermal specifications of Vishay document 94357.
What is the maximum allowable case temperature for VS-VSKD166/14PBF?
The maximum allowable case temperature for VS-VSKD166/14PBF is 100 °C, as specified in the "MAJOR RATINGS AND CHARACTERISTICS" table of Vishay document 94357. This limit applies under 180° conduction, half-sine wave conditions and ensures reliable operation within the -40 °C to +150 °C junction temperature range.
How does the forward voltage of VS-VSKD166/14PBF vary with current and temperature?
VS-VSKD166/14PBF exhibits two-region forward conduction: VF(TO)1 = 0.73 V (low-level threshold) and VF(TO)2 = 0.88 V (high-level threshold) at TJ = 150 °C, with slope resistances rt1 = 1.5 mΩ and rt2 = 1.26 mΩ. These values define the linearized V–I curve used to calculate real-world conduction loss across its 165 A operating range.
Is VS-VSKD166/14PBF RoHS-compliant and lead-free?
Yes, VS-VSKD166/14PBF is RoHS-compliant and lead-free, as indicated by the "PbF" suffix in its full part number and explicitly stated in the series title "VS-VSK.166..PbF, VS-VSK.196..PbF, VS-VSK.236..PbF Series" in Vishay document 94357, Revision 04-May-17.
VS-VSKD166/14PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- INT-A-Pak
- Packaging:
- Bulk
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1400 V
- Current - Average Rectified (Io) (per Diode):
- 82.5A
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 20 mA @ 1400 V
- Operating Temperature - Junction:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- INT-A-PAK
VS-VSKD166/14PBF FAQ
1.How can I place an order for VS-VSKD166/14PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-VSKD166/14PBF 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-VSKD166/14PBF reliable?
The price and inventory of VS-VSKD166/14PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-VSKD166/14PBF is usually 5 days.
3.What payment methods are accepted for VS-VSKD166/14PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-VSKD166/14PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-VSKD166/14PBF?
VS-VSKD166/14PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-VSKD166/14PBF 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-VSKD166/14PBF?
For technical support, including VS-VSKD166/14PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-VSKD166/14PBF requirements.
6.How does Aetrix verify that VS-VSKD166/14PBF is sourced from the original manufacturer or authorized distributors?
All VS-VSKD166/14PBF 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-VSKD166/14PBF meets industry standards.
7.What is the process for return or replacement of VS-VSKD166/14PBF?
All VS-VSKD166/14PBF units undergo pre-shipment inspection (PSI). If there is an issue with VS-VSKD166/14PBF, 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-VSKD166/14PBF part is unused and in its original packaging.
Return procedure for VS-VSKD166/14PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-VSKD166/14PBF Tags
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