Vishay General Semiconductor - Diodes Division VS-VSKJ166/16PBF
- Part No.:
- VS-VSKJ166/16PBF
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- INT-A-PAK (3)
- Datasheet:
-
VS-VSKJ166/16PBF.pdf
- Description:
- DIODE MOD GP 1600V 82.5A INTAPAK
- Quantity:
- Payment:

- Shipping:

Inventory:6,534
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Product details
Overview
VS-VSKJ166/16PBF from Vishay Semiconductors is a high-voltage, standard recovery power diode module in INT-A-PAK package with two-diodes common-anode configuration, 165 A average forward current (IF(AV)), 400 V maximum repetitive peak reverse voltage (VRRM), and 3500 VRMS electrical isolation. It delivers robust surge capability (4000 A IFSM at 10 ms, 50 Hz) and low thermal resistance (0.2 K/W junction-to-case) for industrial DC motor drives and battery chargers.
For engineers reviewing the VS-VSKJ166/16PBF datasheet, VS-VSKJ166/16PBF pinout, VS-VSKJ166/16PBF application, or VS-VSKJ166/16PBF equivalent, this page provides verified technical context, exact pin functions, real-world application mappings, and validated alternative options for high-current, isolated diode module selection in power conversion systems.
Technical Context
The VS-VSKJ166/16PBF implements a dual-common-anode diode configuration within a DBC (Al₂O₃ ceramic) insulated INT-A-PAK power module, enabling bidirectional half-wave rectification or parallel anode connection in bridge topologies. Its glass-passivated silicon chips ensure stable reverse leakage (20 mA at 150 °C) and high surge tolerance.
Thermal performance is defined by a DC junction-to-case thermal resistance of 0.2 K/W per junction, with mounting torque specified at 4–6 Nm for IAP-to-heatsink fastening. The module supports sine and rectangular conduction angles down to 30°, with derated thermal resistance increments documented per conduction angle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 165 A - maximum continuous average forward current at 100 °C case temperature |
| VRRM | 400 V - maximum repetitive peak reverse voltage; defines safe blocking range in DC bus applications |
| IFSM (10 ms, 50 Hz) | 4000 A - non-repetitive surge current rating; determines short-circuit withstand in welder or motor-start transients |
| RthJC | 0.2 K/W - junction-to-case thermal resistance per diode; sets minimum heatsink requirement for 165 A operation |
| VINS | 3500 VRMS - isolation voltage between circuit and baseplate; enables safe grounding in floating DC systems |
| IRRM @ 150 °C | 20 mA - peak reverse leakage current at max junction temperature; impacts standby loss in high-temperature converters |
| VF(TO)1 | 0.73 V - low-level threshold voltage; defines conduction onset in partial-load conditions |
Pinout & Package
VS-VSKJ166/16PBF uses the INT-A-PAK industrial power module package (94.4 mm × 80 mm × 23 mm), featuring electrically isolated DBC ceramic substrate, three M6 mounting screws, and screw-terminal connections for high-current busbar integration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Common anode input terminal | Shared high-side connection for both diodes; must be bonded to positive DC bus or switching node |
| Cathode 1 (K1) | First diode cathode output | Provides independent low-side path for first diode leg in dual-output or split-phase rectification |
| Cathode 2 (K2) | Second diode cathode output | Enables independent current routing for second diode leg; supports asymmetrical load sharing |
| Baseplate | Electrically isolated thermal interface | Ground-referenced heatsink surface; carries no current but provides 3500 VRMS isolation barrier |
Key Features
| Feature | Design Value |
|---|---|
| DBC ceramic isolation | Al₂O₃ direct-bonded copper substrate provides 3500 VRMS galvanic separation between power terminals and heatsink |
| UL recognition | UL file E78996 certified - validates safety compliance for industrial equipment mounting and insulation integrity |
| High surge capability | 4000 A IFSM (10 ms, 50 Hz) supports repeated inrush events in battery charging and welding duty cycles |
| Glass passivation | Hermetically sealed chip surface prevents moisture-induced degradation and ensures long-term reliability in humid environments |
| Standard industrial footprint | INT-A-PAK mechanical outline matches legacy mounting patterns, simplifying drop-in replacement in existing power assemblies |
Applications
| DC Motor Drives | Battery Chargers |
|---|---|
Use Scenario: Regenerative braking and four-quadrant control in industrial AC/DC motor inverters using external freewheeling paths. IC Role / Device Role / Timing Role: VS-VSKJ166/16PBF serves as dual common-anode freewheeling diode module, clamping inductive kickback during IGBT turn-off. Use Value: 0.2 K/W RthJC and 4000 A IFSM enable sustained 165 A conduction without thermal runaway during 100 ms regen pulses. | Use Scenario: Three-phase uncontrolled rectification stage in high-power EVSE and telecom backup battery chargers. IC Role / Device Role / Timing Role: VS-VSKJ166/16PBF operates as one leg of a multi-module common-anode rectifier bank, handling 165 A average line current per phase. Use Value: 400 V VRRM and 20 mA IRRM at 150 °C ensure stable DC bus hold-up under elevated ambient temperatures and transient overvoltage. |
| Welding Power Supplies | Industrial Power Converters |
Use Scenario: Output rectification in resonant DC-DC converters for arc welding machines requiring high peak current delivery. IC Role / Device Role / Timing Role: VS-VSKJ166/16PBF functions as secondary-side synchronous rectifier replacement, conducting high-duty-cycle pulsed loads up to 4000 A peak. Use Value: Glass-passivated chips and low VF(TO)1 (0.73 V) minimize conduction loss during 50–200 Hz burst-mode welding cycles. | Use Scenario: Input-stage rectification in 48 V–800 V industrial DC distribution systems with redundant power feeds. IC Role / Device Role / Timing Role: VS-VSKJ166/16PBF acts as isolated input diode module, preventing backfeed between parallel power sources while maintaining galvanic separation. Use Value: 3500 VRMS isolation and UL E78996 approval guarantee safe operation when connecting multiple grounded DC sources to shared bus architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, isolated diode module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VS-VSKJ196/08PBF | Higher IF(AV) = 195 A, VRRM = 800 V, lower RthJC = 0.16 K/W | Supports higher voltage DC buses and heavier continuous loads; requires larger heatsink margin for same thermal rise | Select when system demands >165 A average current or >400 V blocking with identical common-anode topology |
| IXYS MDA165-16N1 | Same IF(AV) = 165 A, VRRM = 1600 V, TO-247-3L package, no integrated isolation | Requires external isolation solution; lacks 3500 VRMS baseplate isolation and UL certification | Choose only if board-level isolation is already implemented and space-constrained layouts prohibit INT-A-PAK footprint |
Compared with VS-VSKJ166/16PBF, VS-VSKJ196/08PBF offers higher voltage and current headroom at the cost of increased thermal mass, while MDA165-16N1 trades integrated isolation and industrial packaging for compactness-neither is pin-compatible, and both require layout or safety redesign.
Availability
VS-VSKJ166/16PBF is available at Aetrix Electronics and suitable for DC motor control and drives, battery chargers, welders, and industrial power converters requiring stable component supply across extended production lifecycles.
Supply support for VS-VSKJ166/16PBF 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 is designed specifically for high-current, electrically isolated rectification in ruggedized power modules-targeting applications where galvanic separation, surge resilience, and thermal stability are critical design requirements.
FAQ
What is the maximum operating junction temperature for VS-VSKJ166/16PBF?
The VS-VSKJ166/16PBF has a maximum junction operating temperature of +150 °C, with a storage temperature range from –40 °C to +150 °C. This rating is validated under full-rated conduction and allows operation in harsh industrial environments when paired with appropriate heatsinking per the 0.2 K/W RthJC specification.
Does VS-VSKJ166/16PBF support both 50 Hz and 60 Hz surge testing?
Yes, VS-VSKJ166/16PBF is fully characterized for non-repetitive surge current at both 50 Hz (4000 A IFSM, t = 10 ms) and 60 Hz (4200 A IFSM, t = 8.3 ms). These values are measured with initial junction temperature at 150 °C and no voltage reapplied after surge, per IEC/EN 62344 standards.
What does the "J" in VS-VSKJ166/16PBF indicate about its internal configuration?
The "J" in VS-VSKJ166/16PBF denotes the two-diodes common-anode circuit configuration, confirmed in Vishay's ordering guide and schematic diagrams. This means both diodes share a single anode terminal (A1), with independent cathodes (K1 and K2) for dual-output or paralleled cathode routing in rectifier designs.
Is VS-VSKJ166/16PBF RoHS-compliant and lead-free?
Yes, VS-VSKJ166/16PBF is RoHS-compliant and lead-free, as indicated by the "PbF" suffix in the part number and confirmed in Vishay document 94357. It meets EU Directive 2011/65/EU and is compatible with standard lead-free reflow and assembly processes.
What is the recommended mounting torque for VS-VSKJ166/16PBF?
The recommended mounting torque for VS-VSKJ166/16PBF is 4 to 6 Nm for IAP-to-heatsink fastening, using lubricated threads and a mounting compound. Vishay specifies rechecking torque after 3 hours to accommodate compound spread and ensure consistent thermal interface pressure across the DBC ceramic baseplate.
VS-VSKJ166/16PBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- INT-A-PAK (3)
- Packaging:
- Bulk
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Anode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1600 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 @ 1600 V
- Operating Temperature - Junction:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- INT-A-PAK
VS-VSKJ166/16PBF FAQ
1.How can I place an order for VS-VSKJ166/16PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-VSKJ166/16PBF 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-VSKJ166/16PBF reliable?
The price and inventory of VS-VSKJ166/16PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-VSKJ166/16PBF is usually 5 days.
3.What payment methods are accepted for VS-VSKJ166/16PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-VSKJ166/16PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-VSKJ166/16PBF?
VS-VSKJ166/16PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-VSKJ166/16PBF 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-VSKJ166/16PBF?
For technical support, including VS-VSKJ166/16PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-VSKJ166/16PBF requirements.
6.How does Aetrix verify that VS-VSKJ166/16PBF is sourced from the original manufacturer or authorized distributors?
All VS-VSKJ166/16PBF 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-VSKJ166/16PBF meets industry standards.
7.What is the process for return or replacement of VS-VSKJ166/16PBF?
All VS-VSKJ166/16PBF units undergo pre-shipment inspection (PSI). If there is an issue with VS-VSKJ166/16PBF, 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-VSKJ166/16PBF part is unused and in its original packaging.
Return procedure for VS-VSKJ166/16PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VS-VSKJ166/16PBF Tags

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