Vishay General Semiconductor - Diodes Division VS-161MT180C
- Part No.:
- VS-161MT180C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Bridge Rectifiers
- Package:
- Module
- Datasheet:
-
VS-161MT180C.pdf
- Description:
- BRIDGE RECT 3PHASE 1.8KV 257A
- Quantity:
- Payment:

- Shipping:

Inventory:16
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Product details
Overview
VS-161MT180C from Vishay Semiconductors is a three-phase bridge rectifier power module rated for 160 A average output current at 118 °C case temperature, with maximum repetitive peak reverse voltage (VRRM) of 1800 V, 3600 VRMS isolation voltage, and electrically insulated MTC package. It delivers high surge capability (1610 A @ 60 Hz, 8.3 ms), low thermal resistance (RthJC = 0.058 °C/W per module), and is designed for industrial motor drives and heavy-duty AC/DC conversion.
For engineers reviewing the VS-161MT180C datasheet, VS-161MT180C pinout, VS-161MT180C application, or VS-161MT180C equivalent, key selection considerations include its 1800 V blocking rating, 160 A DC conduction capability at elevated case temperature, isolated MTC package mounting requirements, and compatibility with three-phase line-commutated rectification in industrial inverters and UPS systems.
Technical Context
The VS-161MT180C integrates six silicon diodes in a three-phase full-wave bridge configuration within a single electrically insulated metal-base MTC package. Its thermal design supports continuous operation up to TJ = +150 °C with RthJC = 0.058 °C/W per module and RthCS = 0.03 °C/W to heatsink under greased, flat-mount conditions.
Electrical behavior is defined by dual forward voltage thresholds: VFT(TO)1 = 0.81 V (low-current region) and VFT(TO)2 = 0.98 V (high-current region), with corresponding slope resistances rf1 = 3.89 mΩ and rf2 = 3.68 mΩ at TJ = max. Surge robustness is confirmed by I2t = 10 825 A2s (60 Hz, 8.3 ms, no voltage reapplied).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1800 V - Maximum repetitive reverse voltage per diode; enables use in 690 VAC three-phase systems with 2× safety margin. |
| IO | 160 A at TC = 118 °C - Continuous DC output current rating under real-world heatsink-limited thermal conditions. |
| IFSM | 1610 A @ 60 Hz, 8.3 ms - Non-repetitive surge current handling for short-circuit and inrush events in motor drive front-ends. |
| VFM | 1.85 V @ Ipk = 300 A, TJ = 25 °C - Peak forward voltage per junction; directly determines conduction loss at peak load. |
| RthJC | 0.058 °C/W per module - Junction-to-case thermal resistance; defines minimum heatsink requirement for thermal management. |
| VISOL | 3600 VRMS, 1 s - Isolation voltage between terminals and baseplate; satisfies reinforced insulation requirements for industrial equipment. |
| Weight | 235 g - Module mass impacts mechanical mounting stability and thermal interface compliance in high-vibration environments. |
Pinout & Package
The VS-161MT180C uses the MTC (Modular Thyristor/Converter) package: a rectangular, electrically insulated metal baseplate (aluminum nitride or ceramic-insulated copper) with five M6 screw terminals (±, ~A, ~B, ~C), 72 mm × 51 mm footprint, and 24.5 mm height. Mounting torque is 5 N·m ±15% to heatsink and terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| + | Anode common (output positive) | High-current output node for all three upper diodes; must be connected to main DC bus (+) with low-inductance path. |
| − | Cathode common (output negative) | High-current return node for all three lower diodes; forms DC bus (−); requires symmetrical thermal coupling to heatsink. |
| ~A | AC input phase A | Line terminal for phase A of three-phase AC supply; carries full phase current during conduction interval. |
| ~B | AC input phase B | Line terminal for phase B; electrically identical to ~A and ~C; must maintain equal trace length and impedance for balanced operation. |
| ~C | AC input phase C | Line terminal for phase C; completes three-phase input; all three ~ terminals share identical voltage and current stress profiles. |
Key Features
| Feature | Design Value |
|---|---|
| Electrically insulated case | 3600 VRMS isolation enables direct mounting to grounded heatsinks without additional insulation, reducing system size and assembly cost. |
| High surge capability | 1610 A non-repetitive surge current (60 Hz, 8.3 ms) supports reliable operation during motor startup, grid transients, and fault recovery. |
| Optimized thermal resistance | RthJC = 0.058 °C/W per module allows 160 A operation at 118 °C case temperature-critical for compact industrial converter designs. |
| UL recognition | UL file E78996 confirms compliance with UL 60747-1 for discrete semiconductors, supporting safety certification of end equipment. |
| Industrial-grade construction | Rated TJ = −40 to +150 °C and TStg = −40 to +125 °C ensures reliability in harsh environments including factory automation and traction systems. |
Applications
| Industrial Motor Drives | Uninterruptible Power Supplies (UPS) |
|---|---|
Use Scenario: Three-phase AC input rectification in 400–690 VAC variable-frequency drives for pumps, fans, and conveyors. IC Role / Device Role / Timing Role: Primary AC/DC conversion stage delivering regulated DC bus voltage to inverter section. Use Value: 1800 V VRRM and 160 A IO support 690 VAC systems with headroom for line surges and harmonic content. |
Use Scenario: Line-interactive and double-conversion UPS systems requiring high-efficiency, high-reliability rectification. IC Role / Device Role / Timing Role: Front-end rectifier converting utility AC to stable DC for battery charging and inverter input. Use Value: 3600 VRMS isolation and UL E78996 approval meet safety standards for medical and datacenter UPS applications. |
| Welding Power Supplies | Renewable Energy Inverters |
Use Scenario: High-current DC output generation in IGBT-based inverter welders operating from three-phase mains. IC Role / Device Role / Timing Role: Uncontrolled rectifier feeding DC link capacitor bank prior to high-frequency inversion. Use Value: 1610 A IFSM withstands repeated arc ignition surges without degradation or thermal runaway. |
Use Scenario: Grid-tied solar or wind turbine inverters where AC input is derived from transformer-coupled generators. IC Role / Device Role / Timing Role: Three-phase rectification stage in bi-directional converters or auxiliary power supplies. Use Value: RthJC = 0.058 °C/W enables high-power density packaging while maintaining junction temperature below 150 °C. |
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 |
|---|---|---|---|
| IXYS MDA160-18N1 | Same 1800 V VRRM, but higher IO = 180 A at TC = 115 °C; RthJC = 0.052 °C/W; uses ISOPLUS247™ package with different mounting geometry. | Preferred for higher ambient temperature environments (>55 °C) due to superior thermal resistance and derating curve. | Select when heatsink space allows ISOPLUS247 footprint and higher continuous current is required beyond 160 A. |
| Infineon TD160N18KO | 1800 V VRRM, IO = 160 A at TC = 110 °C; RthJC = 0.065 °C/W; features press-fit terminal option and enhanced I2t rating (12 500 A2s). | Better suited for rail traction auxiliary supplies where vibration resistance and press-fit assembly are critical. | Choose for applications requiring press-fit termination or where higher I2t margin is needed for extended short-circuit hold time. |
Compared with VS-161MT180C, MDA160-18N1 offers higher thermal efficiency and current headroom but requires different mechanical layout, while TD160N18KO trades slight thermal penalty for press-fit compatibility and improved fusing robustness-both serve distinct mechanical and reliability priorities in industrial power systems.
Availability
VS-161MT180C is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, welding equipment, and renewable energy inverters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.
Supply support for VS-161MT180C 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 manufacturer of discrete semiconductors and passive components, specializing in high-reliability power devices for industrial, automotive, and computing markets.
The VS-161MT180C belongs to Vishay's MTC-series three-phase bridge rectifier family, engineered for ruggedized AC/DC conversion in high-power industrial systems where electrical isolation, thermal performance, and surge resilience are mission-critical.
FAQ
What is the maximum continuous output current rating for the VS-161MT180C?
The VS-161MT180C is rated for 160 A average DC output current at a case temperature (TC) of 118 °C under 120° rectified conduction angle. This rating assumes proper heatsinking with RthCS ≤ 0.03 °C/W and accounts for thermal derating across the full operating junction temperature range (−40 to +150 °C). Exceeding this current without adjusting thermal design risks exceeding the 150 °C maximum junction temperature.
Does the VS-161MT180C require external insulation when mounted to a grounded heatsink?
No-the VS-161MT180C features an electrically insulated case with 3600 VRMS isolation voltage, allowing direct mounting to a grounded metal heatsink without additional insulating hardware. The MTC package uses a ceramic or aluminum nitride dielectric layer between the baseplate and internal semiconductor die, satisfying reinforced insulation requirements per IEC 61800-5-1 and UL 60747-1.
What is the surge current capability of the VS-161MT180C, and how is it tested?
The VS-161MT180C supports a non-repetitive peak forward surge current (IFSM) of 1610 A at 60 Hz, 8.3 ms duration, with no voltage reapplied after the surge. This rating is verified under initial junction temperature of 150 °C and reflects the device's ability to survive short-circuit events in motor drives and UPS systems without permanent degradation.
Can the VS-161MT180C be used in 690 VAC three-phase systems?
Yes-the VS-161MT180C's 1800 V VRRM provides sufficient margin for 690 VAC systems, where peak line-to-line voltage reaches √2 × 690 ≈ 976 V, and transient overvoltages (per IEC 61000-4-5) may reach 2–4 kV. The 1800 V rating ensures reliable blocking under worst-case voltage stress, including harmonics and switching transients typical in industrial environments.
What is the recommended mounting torque for the VS-161MT180C terminals and heatsink screws?
The VS-161MT180C requires 5 N·m ±15% torque for both heatsink mounting screws (M6) and terminal connections. A thermal interface compound is recommended between the baseplate and heatsink, and torque should be rechecked after 3 hours to accommodate compound spreading. Lubricated threads are required to achieve accurate clamping force and ensure consistent thermal resistance (RthCS = 0.03 °C/W).
VS-161MT180C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Series:
- -
- Package/Case:
- Module
- Packaging:
- Box
- Product Status:
- Active
- Diode Type:
- Three Phase
- Technology:
- Standard
- Voltage - Peak Reverse (Max):
- 1.8 kV
- Current - Average Rectified (Io):
- 257 A
- Voltage - Forward (Vf) (Max) @ If:
- 1.85 V @ 300 A
- Current - Reverse Leakage @ Vr:
- 12 mA @ 1800 V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Chassis Mount
- Supplier Device Package:
- -
VS-161MT180C FAQ
1.How can I place an order for VS-161MT180C through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-161MT180C 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-161MT180C reliable?
The price and inventory of VS-161MT180C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-161MT180C is usually 5 days.
3.What payment methods are accepted for VS-161MT180C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-161MT180C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-161MT180C?
VS-161MT180C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-161MT180C 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-161MT180C?
For technical support, including VS-161MT180C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-161MT180C requirements.
6.How does Aetrix verify that VS-161MT180C is sourced from the original manufacturer or authorized distributors?
All VS-161MT180C 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-161MT180C meets industry standards.
7.What is the process for return or replacement of VS-161MT180C?
All VS-161MT180C units undergo pre-shipment inspection (PSI). If there is an issue with VS-161MT180C, 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-161MT180C part is unused and in its original packaging.
Return procedure for VS-161MT180C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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