My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VSKC320-08
- Part No.:
- VSKC320-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Diode Arrays
- Package:
- 3-MAGN-A-PAK™
- Datasheet:
-
VSKC320-08.pdf
- Description:
- DIODE MOD GP 800V 320A MAGNAPAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,860
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VSKC320-08 from Vishay Semiconductors is a single-phase, common-cathode dual-diode MAGN-A-PAK power module rated for 320 A average forward current (IF(AV)), 800 V maximum repetitive peak reverse voltage (VRRM), and 3000 VRMS isolation between terminals and base plate. It employs standard recovery silicon diodes in an electrically isolated metal-base package, designed for high-current industrial rectification in battery chargers, electroplating systems, and motor drive DC links.
For engineers reviewing the VSKC320-08 datasheet, VSKC320-08 pinout, VSKC320-08 application, or VSKC320-08 equivalent, this module delivers verified thermal performance (RthJC = 0.125 K/W), high surge capability (IFSM = 10,110 A at 50 Hz), and UL E78996 certification - critical for high-reliability, high-power AC/DC conversion designs requiring creepage, isolation, and mechanical robustness.
Technical Context
The VSKC320-08 integrates two standard recovery diodes in a common-cathode configuration within a single MAGN-A-PAK housing, enabling full-wave bridge construction with external anode connections. Its electrically isolated base plate allows direct mounting to shared heatsinks without insulating washers, reducing thermal resistance and simplifying mechanical assembly.
It operates across -40 °C to +150 °C junction temperature range, supports 180° sinusoidal conduction up to 320 A at 100 °C case temperature, and exhibits low forward voltage drop (VFM = 1.28 V at π × IF(AV)) with dual-slope conduction characteristics (VF(TO)1 = 0.69 V, rf1 = 0.59 mΩ).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 320 A - Maximum average forward current at 100 °C case temperature under 180° half-sine conduction; defines continuous DC output capability in rectifier applications. |
| VRRM | 800 V - Maximum repetitive peak reverse voltage; determines maximum AC input voltage the module can block in line-frequency rectifiers. |
| IFSM (50 Hz) | 10,110 A - Non-repetitive surge current rating; enables reliable operation during short-circuit events or inrush in welders and plating supplies. |
| RthJC | 0.125 K/W - Junction-to-case thermal resistance per diode; directly impacts heatsink sizing and steady-state temperature rise under load. |
| VINS | 3000 VRMS - RMS insulation voltage between all terminals and base plate; satisfies safety isolation requirements for industrial equipment per UL E78996. |
| VFM | 1.28 V - Forward voltage drop at π × IF(AV) and TJ = 150 °C; sets conduction loss baseline for efficiency calculations in high-current DC bus designs. |
| I²t (t = 10 ms) | 511 kA²s - Fusing I²t rating; used to coordinate upstream fuse selection for protection against sustained overcurrent faults. |
Pinout & Package
MAGN-A-PAK package: metal base plate with three M8 mounting screws, insulated terminals, and standardized industrial footprint (115 mm × 80 mm × 32 mm). Electrically isolated base enables direct heatsink attachment without additional insulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (A1) | Input terminal for first diode | Connects to AC phase 1 or transformer secondary leg; carries full forward current during positive half-cycle. |
| Anode 2 (A2) | Input terminal for second diode | Connects to AC phase 2 or transformer secondary leg; enables full-wave rectification when paired with A1. |
| Cathode (K) | Common output node | Shared cathode connection delivering rectified DC output; rated for full 320 A average current and must be sized accordingly in busbar layout. |
Key Features
| Feature | Design Value |
|---|---|
| Electrically isolated base plate | Enables direct mounting to grounded heatsinks without thermal interface insulation, reducing RthCS to 0.035 K/W and simplifying mechanical integration. |
| UL E78996 certification | Validates compliance with industrial safety standards for creepage, clearance, and dielectric strength - required for CE-marked equipment in battery charging and plating systems. |
| High surge capability (IFSM = 10,110 A) | Supports operation in high-inertia loads like motor drives and arc welders where transient overcurrents exceed nominal ratings without failure. |
| Large creepage distances | Ensures reliable long-term insulation performance in humid, dusty, or conductive environments typical of industrial plating tanks and electrochemical processes. |
| RoHS-compliant construction | Fulfills Directive 2011/65/EU requirements, enabling global deployment in environmentally regulated industrial electronics supply chains. |
Applications
| Battery Charging Systems | Industrial Electroplating Equipment |
|---|---|
Use Scenario: High-current DC power supply for nickel-chromium or zinc plating lines operating continuously at 200–300 A. IC Role / Device Role / Timing Role: Dual-diode rectifier module converting three-phase AC to stable DC output; common-cathode topology simplifies busbar routing and reduces component count vs. discrete diode solutions. Use Value: 320 A IF(AV) and 0.125 K/W RthJC enable compact heatsinking and >95 % efficiency at full load, minimizing energy waste and thermal management cost. |
Use Scenario: Rectification stage in 500 V, 250 A DC power supply for copper electrowinning cells. IC Role / Device Role / Timing Role: High-voltage, high-current diode module providing galvanically isolated DC output; electrically isolated base eliminates need for insulating hardware on shared busbar heatsinks. Use Value: 3000 VRMS isolation and UL E78996 approval ensure personnel safety and regulatory compliance in wet, corrosive plating environments. |
| AC Motor Drive DC Link | Resistance Welding Power Supply |
Use Scenario: Input rectifier for 400 VAC, 30 kW variable frequency drive feeding induction motors in HVAC and pump systems. IC Role / Device Role / Timing Role: Common-cathode dual-diode module forming half of a six-pulse bridge; handles bidirectional reactive current during regeneration and maintains DC bus stability. Use Value: 10,110 A IFSM withstands regenerative surges and short-circuit transients without degradation, extending system uptime and reducing maintenance frequency. |
Use Scenario: Primary rectifier in capacitor-discharge resistance welder delivering 10 kA pulses at 100 ms duration. IC Role / Device Role / Timing Role: High-current, standard-recovery diode module conducting high-duty-cycle pulsed DC; optimized thermal mass and low RthJC prevent thermal runaway during repetitive welding cycles. Use Value: 511 kA²s I²t rating ensures precise coordination with fast-acting DC fuses, protecting downstream thyristor stacks and transformer windings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current diode module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VSKC320-12 | Higher VRRM (1200 V) and VRSM (1300 V); identical IF(AV), IFSM, and thermal specs. | Suitable for 690 VAC industrial mains or higher DC bus voltages; not interchangeable without circuit re-rating. | Select VSKC320-12 only when system peak reverse voltage exceeds 800 V - no change to heatsink or mounting required. |
| VSKE320-08 | Single-diode configuration (one anode, one cathode); same VRRM, IF(AV), and RthJC; lower I²t (361 kA²s). | Used where unidirectional rectification suffices (e.g., freewheeling in thyristor-controlled drives); requires two units for full-wave bridge. | Choose VSKE320-08 for modular flexibility or redundancy-critical designs; expect +100 % footprint and interconnect complexity vs. VSKC320-08. |
Compared with VSKC320-12, the VSKC320-08 offers lower voltage derating margin but identical thermal and surge performance; versus VSKE320-08, it delivers full-wave rectification in one package, reducing part count and busbar losses by eliminating one series diode drop.
Availability
VSKC320-08 is available at Aetrix Electronics and suitable for battery charging systems, industrial electroplating equipment, and AC motor drive DC links requiring stable component supply, long-life reliability, and certified isolation performance.
Supply support for VSKC320-08 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 VSK series was developed specifically for high-current, high-isolation industrial rectification - targeting applications where mechanical simplicity, thermal efficiency, and safety certification are non-negotiable design requirements.
FAQ
What is the maximum case temperature for continuous operation of the VSKC320-08?
The VSKC320-08 is rated for continuous operation at a maximum case temperature (TC) of 100 °C while delivering its full 320 A average forward current. Exceeding this temperature requires derating per the conduction-angle curves in Figure 12 of the datasheet. Thermal design must maintain TC ≤ 100 °C under worst-case ambient and airflow conditions to ensure reliability and meet lifetime specifications.
Does the VSKC320-08 require insulating hardware when mounted to a heatsink?
No - the VSKC320-08 features an electrically isolated base plate rated for 3000 VRMS, allowing direct mounting to grounded or common heatsinks without mica washers or silicone pads. Mounting torque must be maintained at 4–6 Nm with thermal compound applied, and torque should be rechecked after ~3 hours to accommodate compound spread and ensure consistent thermal contact.
What is the forward voltage drop of the VSKC320-08 at rated current?
The VSKC320-08 has a maximum forward voltage drop (VFM) of 1.28 V when conducting π × IF(AV) = ~1005 A at TJ = 150 °C and 180° conduction. This value reflects total conduction loss per diode and is used to calculate power dissipation: Pcond ≈ VF(TO) × IF(AV) + rf × IF(RMS)² = ~410 W per diode at full load.
Can the VSKC320-08 be used in a three-phase bridge configuration?
Yes - two VSKC320-08 modules (common-cathode) can be combined with one VSKE320-08 (single diode) or three VSKC320-08 units configured with external wiring to form a three-phase full-wave bridge. The common-cathode topology simplifies DC bus layout but requires careful gate/anode routing to avoid cross-conduction in controlled rectifier systems.
Is the VSKC320-08 RoHS compliant and UL certified?
Yes - the VSKC320-08 is compliant with RoHS Directive 2011/65/EU and carries UL certification under file E78996. It meets UL 94 V-0 flammability rating and has been qualified for industrial-level operation including extended temperature cycling, humidity exposure, and vibration testing per Vishay's internal qualification standards.
VSKC320-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- 3-MAGN-A-PAK™
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 800 V
- Current - Average Rectified (Io) (per Diode):
- 320A
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 50 mA @ 800 V
- Operating Temperature - Junction:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- MAGN-A-PAK®
VSKC320-08 FAQ
1.How can I place an order for VSKC320-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VSKC320-08 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 VSKC320-08 reliable?
The price and inventory of VSKC320-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VSKC320-08 is usually 5 days.
3.What payment methods are accepted for VSKC320-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VSKC320-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VSKC320-08?
VSKC320-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VSKC320-08 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 VSKC320-08?
For technical support, including VSKC320-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VSKC320-08 requirements.
6.How does Aetrix verify that VSKC320-08 is sourced from the original manufacturer or authorized distributors?
All VSKC320-08 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 VSKC320-08 meets industry standards.
7.What is the process for return or replacement of VSKC320-08?
All VSKC320-08 units undergo pre-shipment inspection (PSI). If there is an issue with VSKC320-08, 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 VSKC320-08 part is unused and in its original packaging.
Return procedure for VSKC320-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VSKC320-08 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
