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Vishay General Semiconductor - Diodes Division VS-70MT160KPBF
- Part No.:
- VS-70MT160KPBF
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Bridge Rectifiers
- Package:
- MT-K Module
- Datasheet:
-
VS-70MT160KPBF.pdf
- Description:
- BRIDGE RECT 3P 1.6KV 70A MT-K
- Quantity:
- Payment:
- Shipping:
Inventory:31
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Product details
Overview
VS-70MT160KPBF from Vishay Semiconductors is a lead-free, three-phase bridge rectifier module rated for 70 A average output current and 1600 V maximum repetitive peak reverse voltage (VRRM). It features an electrically insulated MT-K package with 4000 VRMS isolation, UL E78996 approval, and thermal resistance of 0.29 K/W (junction-to-case, DC per module), designed for industrial motor drives and heavy-duty AC/DC conversion.
For engineers reviewing the VS-70MT160KPBF datasheet, VS-70MT160KPBF pinout, VS-70MT160KPBF application, or VS-70MT160KPBF equivalent, this page delivers verified electrical ratings, thermal performance data, mechanical dimensions, isolation compliance, and direct alternative part comparisons - all validated against Vishay Document #94356 and Outline #95004.
Technical Context
This device integrates six high-voltage silicon diodes in a single-phase-input, three-phase-output bridge configuration, enabling full-wave rectification of three-phase AC inputs into stable DC bus voltage. Its design supports 120° conduction angle operation with case temperature limits up to +85 °C at 70 A output.
Thermal management is enabled by low RthJC (0.29 K/W) and RthCS (0.03 K/W), requiring M5 mounting screws (4–6 Nm torque) and recommended thermal compound. The module sustains non-repetitive surge currents up to 500 A (60 Hz, 8.3 ms) and I2t ratings of 1050 kA²s under identical conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1600 V - Withstands repetitive reverse voltage up to 1600 V without breakdown; defines maximum AC line voltage compatibility (e.g., 690 VAC 3φ systems with safety margin) |
| IO | 70 A - Average DC output current at 120° conduction and TC = 85 °C; determines continuous power handling in motor drive DC links |
| IFSM | 500 A (60 Hz, 8.3 ms) - Peak non-repetitive surge current capability; critical for short-circuit ride-through in inverters |
| RthJC | 0.29 K/W - Junction-to-case thermal resistance under DC operation; enables precise heatsink sizing for 70 A continuous load |
| VISOL | 4000 VRMS - Isolation voltage rating between terminals and case; satisfies reinforced insulation requirements for industrial equipment |
| VF(TO)2 | 1.08 V - High-level threshold voltage at max junction temperature; used with rf2 = 6.53 mΩ to model forward drop above π×IF(AV) |
| Weight | 176 g - Physical mass impacts mechanical mounting design and thermal interface stability on heatsinks |
Pinout & Package
The VS-70MT160KPBF uses the MT-K package: a compact, insulated, screw-mount power module measuring 94 × 75 × 38 mm (L × W × H), with three AC input terminals (A, B, C), one positive DC output (+), one negative DC output (−), and an isolated metal baseplate serving as thermal and electrical ground reference.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | AC Phase Input 1 | Connects to L1 of three-phase AC supply; shares common cathode/anode node with internal diode pair |
| B | AC Phase Input 2 | Connects to L2 of three-phase AC supply; forms second leg of full-wave bridge rectification path |
| C | AC Phase Input 3 | Connects to L3 of three-phase AC supply; completes three-phase input interface for balanced rectification |
| + | DC Positive Output | Anode-side output node; delivers rectified DC voltage to inverter DC bus or capacitor bank |
| − | DC Negative Output | Cathode-side output node; returns rectified current and serves as system DC reference/ground return |
Key Features
| Feature | Design Value |
|---|---|
| UL E78996 certified | Meets UL recognition for industrial equipment safety; eliminates need for additional isolation validation in end-product certification |
| Electrically insulated case | Enables direct mounting to grounded heatsinks without insulating washers - reduces thermal interface layers and improves RthCS |
| Industry-standard INT-A-PAK compatibility | Allows drop-in replacement or mechanical interchangeability with legacy power modules in existing PCB/heatsink layouts |
| Lead (Pb)-free (PbF) | Complies with RoHS Directive 2011/65/EU; suitable for environmentally regulated industrial and export markets |
| High power-volume ratio | Delivers 70 A / 1600 V performance in 94 × 75 × 38 mm footprint - optimizes space in compact drive enclosures |
Applications
| Industrial Motor Drives | Uninterruptible Power Supplies (UPS) |
|---|---|
|
Use Scenario: Three-phase AC input rectification in 50–60 Hz variable-frequency drives powering HVAC compressors or conveyor systems. IC Role / Device Role / Timing Role: Three-phase bridge rectifier converting line voltage to stable DC bus for inverter stage. Use Value: 70 A continuous rating and 500 A surge capability ensure reliable operation during motor startup surges and overload transients. |
Use Scenario: Online double-conversion UPS systems requiring high-efficiency, high-reliability AC-to-DC front-end conversion. IC Role / Device Role / Timing Role: Primary rectification stage feeding battery charging circuitry and inverter DC link. Use Value: 4000 VRMS isolation and UL E78996 approval support safety-critical backup power architecture compliance. |
| Welding Power Supplies | Renewable Energy Inverters |
|
Use Scenario: Rectifying three-phase utility or generator input in industrial arc welding equipment with high-current pulsed loads. IC Role / Device Role / Timing Role: Main AC/DC conversion module delivering high-current DC to inverter or thyristor-controlled output stage. Use Value: Low RthJC (0.29 K/W) and robust I2t (1050 kA²s) sustain repeated high-current pulses without thermal runaway. |
Use Scenario: Grid-tied solar or wind turbine inverters where three-phase AC generation is converted to DC before inversion. IC Role / Device Role / Timing Role: Front-end rectifier in bi-directional or hybrid converter topologies accepting AC input during islanded mode or grid support. Use Value: 1600 V VRRM supports high-voltage PV string configurations and fault ride-through requirements per IEEE 1547. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-phase bridge rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VS-70MT120KPBF | VRRM = 1200 V (vs. 1600 V); otherwise identical package, IO, thermal, and isolation specs | Suitable for 400–500 VAC 3φ systems; insufficient for 690 VAC or high-transient industrial grids | Select when system peak line voltage ≤ 1300 V and cost optimization is prioritized over margin |
| IXYS MDA70-1600 | Same VRRM (1600 V) and IO (70 A), but TO-247-3L discrete module; no integrated isolation or UL certification | Requires external isolation barrier and heatsink insulation; not drop-in replaceable due to different footprint and terminal layout | Choose only if board redesign is acceptable and higher assembly flexibility justifies added safety validation effort |
Compared with VS-70MT120KPBF and MDA70-1600, the VS-70MT160KPBF uniquely combines 1600 V rating, UL-certified 4000 VRMS isolation, and INT-A-PAK mechanical compatibility - making it optimal for safety-critical, space-constrained industrial rectification where certification and layout reuse are mandatory.
Availability
VS-70MT160KPBF is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, and welding equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for VS-70MT160KPBF 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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, power modules, and passive devices, with emphasis on reliability, thermal performance, and industrial-grade qualification.
The VS-70MT160KPBF belongs to Vishay's MT-K series of encapsulated three-phase bridge rectifiers, engineered for high-power AC/DC conversion in harsh environments including factory automation, energy infrastructure, and heavy machinery.
FAQ
What is the maximum allowable case temperature for continuous operation of the VS-70MT160KPBF?
The VS-70MT160KPBF supports continuous operation at a maximum case temperature (TC) of +85 °C when delivering its rated 70 A average output current under 120° conduction angle conditions. This value is specified in the "Major Ratings and Characteristics" table of Vishay Document #94356 and must be maintained via appropriate heatsinking to avoid exceeding the 150 °C maximum junction temperature.
Does the VS-70MT160KPBF require external insulation when mounted to a grounded heatsink?
No - the VS-70MT160KPBF features an electrically insulated case, allowing direct mounting to a grounded heatsink without additional insulating hardware. Its 4000 VRMS isolation rating and UL E78996 approval confirm safe operation with the metal baseplate at earth potential, reducing thermal resistance and simplifying mechanical integration.
What does the "160" in VS-70MT160KPBF indicate?
The "160" in VS-70MT160KPBF denotes the voltage code corresponding to 1600 V maximum repetitive peak reverse voltage (VRRM). Per Vishay's ordering nomenclature in Document #94356, voltage codes are multiplied by 10 (e.g., 160 × 10 = 1600 V), confirming the device's suitability for high-voltage three-phase systems such as 690 VAC industrial grids.
Can the VS-70MT160KPBF be used in single-phase applications?
Yes - while optimized for three-phase rectification, the VS-70MT160KPBF can be configured for single-phase full-wave bridge operation by connecting two AC inputs together (e.g., A and B shorted) and using the third as return. However, derating is required: maximum IO drops to approximately 45 A due to uneven junction utilization and thermal imbalance across the internal diode array.
Is thermal compound mandatory for mounting the VS-70MT160KPBF?
Yes - Vishay explicitly recommends applying thermal compound between the VS-70MT160KPBF baseplate and heatsink, with mounting torque rechecked after 3 hours to accommodate compound spread. This ensures the specified RthCS of 0.03 K/W is achieved; omission risks excessive junction temperature rise and premature failure under sustained 70 A load.
VS-70MT160KPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- MT-K Module
- Packaging:
- Tray
- Product Status:
- Active
- Diode Type:
- Three Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 1.6 kV
- Current - Average Rectified (Io):
- 70 A
- Voltage - Forward (Vf) (Max) @ If:
- -
- Current - Reverse Leakage @ Vr:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- MT-K
VS-70MT160KPBF FAQ
1.How can I place an order for VS-70MT160KPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-70MT160KPBF 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-70MT160KPBF reliable?
The price and inventory of VS-70MT160KPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-70MT160KPBF is usually 5 days.
3.What payment methods are accepted for VS-70MT160KPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-70MT160KPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-70MT160KPBF?
VS-70MT160KPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-70MT160KPBF 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-70MT160KPBF?
For technical support, including VS-70MT160KPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-70MT160KPBF requirements.
6.How does Aetrix verify that VS-70MT160KPBF is sourced from the original manufacturer or authorized distributors?
All VS-70MT160KPBF 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-70MT160KPBF meets industry standards.
7.What is the process for return or replacement of VS-70MT160KPBF?
All VS-70MT160KPBF units undergo pre-shipment inspection (PSI). If there is an issue with VS-70MT160KPBF, 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-70MT160KPBF part is unused and in its original packaging.
Return procedure for VS-70MT160KPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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