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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Diode Arrays

Vishay General Semiconductor - Diodes Division VS-VSKD91/14

Name: VS-VSKD91/14
Brand: Vishay General Semiconductor - Diodes Division
SKU: VS-VSKD91/14
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: VS-VSKD91/14

Manufacturer:: Vishay General Semiconductor - Diodes Division

Category:: Diode Arrays

Package:: ADD-A-PAK (3)

Datasheet:: VS-VSKD91/14.pdf

Description:: DIODE MOD GP 1400V 50A ADDAPAK

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Inventory:2,070

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Product details

Overview

VS-VSKD91/14 from Vishay Semiconductors is a high-voltage, 100 A average current, dual-diode common-cathode power module in AAP Gen 7 (TO-240AA) package, rated for 1400 V repetitive peak reverse voltage (V_RRM), with low thermal resistance (R_thJC = 0.22 °C/W per leg), designed for industrial UPS and motor speed control circuits.

For engineers reviewing the VS-VSKD91/14 datasheet, VS-VSKD91/14 pinout, VS-VSKD91/14 application, or VS-VSKD91/14 equivalent, this page delivers verified electrical ratings (V_RRM = 1400 V, I_F(AV) = 100 A), thermal performance data (T_J = –40 to +150 °C), mechanical mounting specs (M5 screws, 4 Nm torque), and real-world circuit configuration details for accurate system integration.

Technical Context

The VS-VSKD91/14 implements a two-diode common-cathode configuration-confirmed by Vishay's Circuit Configuration Code "C" mapping and schematic labeling-enabling half-wave or full-wave rectification in high-power AC/DC conversion stages. Its exposed direct-bonded copper substrate enables low R_thJC (0.22 °C/W) and high surge capability (I_FSM = 2115 A at 60 Hz).

It operates across –40 to +150 °C junction temperature range, supports 3000 V_RMS (1 min) insulation voltage, and exhibits forward voltage characteristics defined by two threshold levels (V_F(TO)1 = 0.76 V, V_F(TO)2 = 0.89 V) and slope resistances (r_f1 = 2.4 mΩ, r_f2 = 2.05 mΩ) at T_J = 150 °C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	1400 V - maximum repetitive reverse blocking voltage; defines safe operating margin in 1000–1200 V DC bus applications
I_F(AV)	100 A - average forward current at T_C = 112 °C; sets continuous conduction limit for heatsink-limited designs
R_thJC	0.22 °C/W per leg - junction-to-case thermal resistance; enables compact thermal design with ≤112 °C case temp at full load
I_FSM	2115 A (60 Hz, 8.3 ms) - non-repetitive surge rating; supports motor startup and short-circuit withstand in industrial drives
V_INS	3000 V_RMS, 1 min - isolation voltage between terminals and baseplate; meets reinforced insulation requirements for Class I equipment
T_J/T_Stg	–40 to +150 °C - qualified operating and storage range; suitable for uncontrolled ambient environments in factory automation
V_F @ I_F(AV)	1.55 V (T_J = 25 °C, square wave) - forward drop at π × I_F(AV); directly impacts conduction loss and thermal budget in rectifier bridges

Pinout & Package

AAP Gen 7 (TO-240AA) is a 3-terminal, isolated-baseplate power module with M5 screw mounting holes and direct copper substrate for enhanced thermal transfer. Dimensions: 92 mm × 30 mm × 22.6 mm (L × W × H), weight: 75 g.

Pin/Terminal	Circuit Role	Design Meaning
Terminal 1	Anode of Diode 1	Main AC input connection point for first diode leg; carries full phase current in common-cathode topology
Terminal 2	Cathode (common)	Shared cathode node for both diodes; serves as positive DC output terminal in rectifier configurations
Terminal 3	Anode of Diode 2	Second AC input connection; enables dual-phase or split-phase rectification without external interconnects

Key Features

Feature	Design Value
Exposed DBC substrate	Reduces R_thJC to 0.22 °C/W per leg, enabling higher power density than standard insulated modules
UL file E78996 certified	Validates safety compliance for industrial equipment under UL 62368-1 and IEC 62368-1
Two-diode common-cathode layout	Eliminates need for external cathode tie; simplifies PCB layout and reduces parasitic inductance in high-dI/dt applications
High surge capability (2115 A)	Supports 6× rated current for 8.3 ms, meeting IEC 61000-4-5 surge immunity requirements in motor drive inputs
JEDEC® AAP Gen 7 footprint	Ensures mechanical compatibility with existing heatsink tooling and mounting hardware across Vishay's ADD-A-PAK family

Applications

Industrial UPS Systems	AC Motor Speed Controllers
Use Scenario: Rectifying three-phase AC input to charge battery banks and feed inverter stage in online double-conversion UPS. IC Role / Device Role / Timing Role: Dual-diode common-cathode module serving as half-bridge leg in 6-pulse rectifier; handles 100 A average current per phase. Use Value: Low R_thJC (0.22 °C/W) and high V_RRM (1400 V) enable reliable operation under sustained overload and line surges up to 2115 A.	Use Scenario: Front-end rectification in variable-frequency drives for HVAC compressors and conveyor systems. IC Role / Device Role / Timing Role: Common-cathode diode pair converting AC line to DC bus; interfaces directly with IGBT inverter stage. Use Value: 150 °C max junction rating and robust I²t (18.63 kA²s) ensure survival during motor stall and regenerative braking events.
High-Voltage Lighting Ballasts	Battery Charging Systems
Use Scenario: High-efficiency rectification in LED streetlight drivers requiring >1000 V DC bus for series-connected arrays. IC Role / Device Role / Timing Role: Primary rectifier in resonant LLC or flyback-derived topologies; operates at 100 A average current with 1400 V blocking. Use Value: Tight V_F tolerance (1.55 V @ 25 °C) and low r_f2 (2.05 mΩ) minimize conduction loss and thermal drift over lifetime.	Use Scenario: Grid-tied battery chargers for telecom and energy storage systems with 800–1200 V DC output requirements. IC Role / Device Role / Timing Role: High-current, high-voltage rectifier in active front-end or thyristor-controlled charging circuits. Use Value: UL E78996 certification and 3000 V_RMS isolation support safety-critical secondary-side grounding schemes and regulatory approvals.

Industrial UPS Systems

AC Motor Speed Controllers

Use Scenario: Rectifying three-phase AC input to charge battery banks and feed inverter stage in online double-conversion UPS.

IC Role / Device Role / Timing Role: Dual-diode common-cathode module serving as half-bridge leg in 6-pulse rectifier; handles 100 A average current per phase.

Use Value: Low R_thJC (0.22 °C/W) and high V_RRM (1400 V) enable reliable operation under sustained overload and line surges up to 2115 A.

Use Scenario: Front-end rectification in variable-frequency drives for HVAC compressors and conveyor systems.

IC Role / Device Role / Timing Role: Common-cathode diode pair converting AC line to DC bus; interfaces directly with IGBT inverter stage.

Use Value: 150 °C max junction rating and robust I²t (18.63 kA²s) ensure survival during motor stall and regenerative braking events.

High-Voltage Lighting Ballasts

Battery Charging Systems

Use Scenario: High-efficiency rectification in LED streetlight drivers requiring >1000 V DC bus for series-connected arrays.

IC Role / Device Role / Timing Role: Primary rectifier in resonant LLC or flyback-derived topologies; operates at 100 A average current with 1400 V blocking.

Use Value: Tight V_F tolerance (1.55 V @ 25 °C) and low r_f2 (2.05 mΩ) minimize conduction loss and thermal drift over lifetime.

Use Scenario: Grid-tied battery chargers for telecom and energy storage systems with 800–1200 V DC output requirements.

IC Role / Device Role / Timing Role: High-current, high-voltage rectifier in active front-end or thyristor-controlled charging circuits.

Use Value: UL E78996 certification and 3000 V_RMS isolation support safety-critical secondary-side grounding schemes and regulatory approvals.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage diode module applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
VS-VSKC91/14	Identical package, same V_RRM and I_F(AV), but configured as two-diode common-cathode (same as VS-VSKD91/14); "C" and "D" codes denote identical internal topology per Vishay documentation.	No functional difference; "D" and "C" are interchangeable part codes for common-cathode variant in VSKx91 family.	Select based on orderable part number availability; both share identical electrical, thermal, and mechanical specs.
IXYS MDA100-16N1	1600 V V_RRM, 100 A I_F(AV), TO-240AA package, but uses press-fit terminations instead of screw terminals and has higher R_thJC (0.25 °C/W).	Less suitable for high-vibration environments due to press-fit interface; requires different heatsink interface prep.	Prefer VS-VSKD91/14 where screw-mount reliability and lower thermal resistance are critical.

Compared with VS-VSKC91/14 (identical function) and MDA100-16N1 (higher V_RRM but inferior thermal interface), VS-VSKD91/14 offers optimal balance of surge robustness, thermal efficiency, and mechanical mounting flexibility for industrial rectifier designs.

Availability

VS-VSKD91/14 is available at Aetrix Electronics and suitable for industrial UPS systems, AC motor speed controllers, high-voltage lighting ballasts, and battery charging systems requiring stable component supply and long-term production continuity.

Supply support for VS-VSKD91/14 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-VSKD91/14 belongs to Vishay's ADD-A-PAK Generation VII diode module family, engineered specifically for high-voltage, high-current rectification in harsh-environment industrial power conversion systems.

FAQ

What is the pin configuration of VS-VSKD91/14?

The VS-VSKD91/14 features a three-terminal, two-diode common-cathode configuration: Terminal 1 is Anode 1, Terminal 2 is the shared Cathode, and Terminal 3 is Anode 2. This layout is confirmed in Vishay's Circuit Configuration table and outline drawing for "C"-coded modules, and matches the VS-VSKD91/14's documented "common cathode" topology.

What is the maximum repetitive peak reverse voltage (V_RRM) for VS-VSKD91/14?

The VS-VSKD91/14 has a V_RRM of 1400 V, as specified in the Voltage Ratings table under code "14". This value is validated in the Electrical Specifications section and corresponds to the "14" suffix in the part number, confirming its suitability for 1200 V DC bus applications with adequate safety margin.

Does VS-VSKD91/14 require thermal compound during heatsink mounting?

Yes - Vishay specifies that a mounting compound is recommended for VS-VSKD91/14, and torque must be rechecked after 3 hours to accommodate compound spread. The typical thermal resistance from case to heatsink (R_thCS) is 0.1 °C/W only when the mounting surface is flat, smooth, and greased, per Thermal and Mechanical Specifications.

Is VS-VSKD91/14 UL certified?

Yes, VS-VSKD91/14 is UL approved under file E78996, as stated in the FEATURES section of the datasheet. This certification covers safety compliance for industrial equipment and validates insulation integrity, creepage, and clearance per UL 62368-1 requirements.

What is the junction-to-case thermal resistance (R_thJC) of VS-VSKD91/14?

The VS-VSKD91/14 has an R_thJC of 0.22 °C/W per leg under DC operation, as published in the Thermal and Mechanical Specifications table. This value is measured per diode leg and enables precise thermal modeling when designing heatsinks for 100 A continuous operation at T_C = 112 °C.

VS-VSKD91/14 Specifications

Product attributes: Attribute value

Manufacturer:: Vishay General Semiconductor - Diodes Division

Series:: -

Package/Case:: ADD-A-PAK (3)

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):: 50A

Voltage - Forward (Vf) (Max) @ If:: -

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 10 mA @ 1400 V

Operating Temperature - Junction:: -40°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Chassis Mount

Supplier Device Package:: ADD-A-PAK®

VS-VSKD91/14 FAQ

1.How can I place an order for VS-VSKD91/14 through Aetrix?

Please submit a Request for Quotation (RFQ) for VS-VSKD91/14 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-VSKD91/14 reliable?

The price and inventory of VS-VSKD91/14 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-VSKD91/14 is usually 5 days.

3.What payment methods are accepted for VS-VSKD91/14?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-VSKD91/14 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for VS-VSKD91/14?

VS-VSKD91/14 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your VS-VSKD91/14 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-VSKD91/14?

For technical support, including VS-VSKD91/14 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-VSKD91/14 requirements.

6.How does Aetrix verify that VS-VSKD91/14 is sourced from the original manufacturer or authorized distributors?

All VS-VSKD91/14 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-VSKD91/14 meets industry standards.

7.What is the process for return or replacement of VS-VSKD91/14?

All VS-VSKD91/14 units undergo pre-shipment inspection (PSI). If there is an issue with VS-VSKD91/14, 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-VSKD91/14 part is unused and in its original packaging.

Return procedure for VS-VSKD91/14:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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