Vishay General Semiconductor - Diodes Division VS-131MT180C
- Part No.:
- VS-131MT180C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- Bridge Rectifiers
- Package:
- Module
- Datasheet:
-
VS-131MT180C.pdf
- Description:
- BRIDGE RECT 3PHASE 1.8KV 218A
- Quantity:
- Payment:

- Shipping:

Inventory:32
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Product details
Overview
VS-131MT180C from Vishay Semiconductors is a three-phase bridge rectifier power module rated for 130 A average output current at 120 °C case temperature, with maximum repetitive peak reverse voltage (VRRM) of 1800 V and 3600 VRMS isolation voltage. It features electrically insulated case, high thermal conductivity package (MTC), and is designed for industrial-level heavy-duty AC/DC conversion in motor drives and UPS systems.
For engineers reviewing the VS-131MT180C datasheet, VS-131MT180C pinout, VS-131MT180C application, or VS-131MT180C equivalent, key selection criteria include its 1800 V blocking capability, 0.068 °C/W junction-to-case thermal resistance per module, surge rating of 1330 A (60 Hz, 8.3 ms), and UL approval (E78996) for safety-critical power conversion designs.
Technical Context
This module integrates six ultrafast recovery diodes in a single-phase-in, three-phase-out bridge configuration. Its MTC package provides electrical isolation between terminals and heatsink, enabling direct mounting without additional insulation hardware. Thermal performance is defined by RthJC = 0.068 °C/W (per module) and RthCS = 0.03 °C/W (case-to-heatsink, greased surface).
Electrical behavior includes dual forward voltage thresholds: VFT(TO)1 = 0.79 V (low-current region) and VFT(TO)2 = 0.96 V (high-current region), with corresponding slope resistances rf1 = 4.97 mΩ and rf2 = 4.63 mΩ at TJ = 150 °C. Maximum forward voltage drop is 2.05 V at 300 A peak and 25 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1800 V - supports DC bus voltages up to 1270 V RMS in 3-phase 60 Hz systems with margin |
| IO (120° conduction) | 130 A at TC = 120 °C - defines continuous output capability under typical rectifier duty cycle |
| IFSM (60 Hz) | 1330 A - withstands short-term motor startup surges without fusing |
| RthJC (per module) | 0.068 °C/W - enables efficient heat transfer to heatsink; limits ΔTJ to 8.8 °C at 130 A conduction loss |
| Visol | 3600 VRMS - meets reinforced insulation requirements for industrial equipment per IEC 61800-5-1 |
| Weight | 235 g - compact mass for high-power density in space-constrained enclosures |
| TJ range | –40 to +150 °C - supports operation in harsh ambient environments including outdoor inverters |
Pinout & Package
The VS-131MT180C uses the MTC (Modular Three-phase Compact) package: 72 mm × 80 mm × 24.5 mm, with five M6 mounting screws, isolated baseplate, and terminal layout optimized for low-inductance three-phase AC input and DC output routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AC1, AC2, AC3 | Three-phase AC input terminals | Accept 3-wire ungrounded AC supply; symmetric layout minimizes parasitic inductance imbalance |
| + (Anode Common) | Positive DC output terminal | High-current path for full-wave rectified output; rated for 130 A continuous, 300 A peak |
| – (Cathode Common) | Negative DC output terminal | Return path for rectified current; electrically isolated from heatsink per UL E78996 |
Key Features
| Feature | Design Value |
|---|---|
| Electrically insulated case | Enables direct bolt-down to grounded heatsink without isolation pads, reducing thermal interface resistance by ~0.03 °C/W |
| High surge capability (1330 A) | Supports 60 Hz motor inrush currents exceeding 10× rated output without degradation |
| UL approval E78996 | Validates compliance with UL 60747-1 for component-level safety in industrial power equipment |
| Optimized power-volume ratio | Delivers 130 A / 1800 V in 142 cm³ volume - 22% smaller footprint than legacy 1200 V modules at same current rating |
| Low thermal resistance (0.068 °C/W) | Reduces required heatsink size by ~35% compared to modules with RthJC > 0.1 °C/W at same power dissipation |
Applications
| Industrial Motor Drives | Uninterruptible Power Supplies (UPS) |
|---|---|
Use Scenario: Three-phase AC input rectification in 400 VAC variable-frequency drives for HVAC compressors and pumps. IC Role / Device Role / Timing Role: Primary power conversion stage converting line AC to stable DC bus for inverter section. Use Value: 1800 V VRRM ensures 2× safety margin over 400 VAC line-to-line peak (≈565 V), preventing avalanche failure during transients. |
Use Scenario: Rectification stage in online double-conversion UPS systems handling 480 VAC input. IC Role / Device Role / Timing Role: High-reliability AC/DC front-end delivering regulated DC to battery charger and inverter. Use Value: 1330 A IFSM handles generator synchronization surges and utility fault ride-through without derating. |
| Renewable Energy Inverters | Welding Power Supplies |
Use Scenario: Grid-tied solar inverters with transformerless topology requiring reinforced isolation. IC Role / Device Role / Timing Role: Isolated DC-link generation from three-phase utility or generator input. Use Value: 3600 VRMS isolation meets IEC 62109-1 creepage/clearance requirements for Class II equipment. |
Use Scenario: Primary rectification in medium-duty arc welding machines with 3-phase 400 VAC supply. IC Role / Device Role / Timing Role: High-current, low-loss DC source feeding thyristor-controlled output stage. Use Value: Dual forward voltage thresholds (0.79 V / 0.96 V) reduce conduction loss across 10–100% load range. |
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 MDA130-18N1 | Same 130 A / 1800 V rating; higher RthJC = 0.085 °C/W; non-insulated baseplate requires isolation pad | Requires additional thermal interface material and creepage spacing design effort | Preferred where cost sensitivity outweighs thermal optimization and isolation simplicity |
| Infineon TD130N18KO | 130 A / 1800 V; lower IFSM = 1100 A; RthJC = 0.072 °C/W; UL recognized but not approved | Limited surge margin in motor drive applications with high inertia loads | Suitable for fixed-speed industrial rectifiers where transient stress is well characterized |
Compared with MDA130-18N1 and TD130N18KO, the VS-131MT180C delivers superior thermal efficiency (0.068 °C/W), certified isolation (UL E78996), and highest surge robustness (1330 A), making it optimal for high-reliability, space-constrained, and safety-certified industrial power systems.
Availability
VS-131MT180C is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, and renewable energy inverters requiring stable component supply, long-term lifecycle support, and traceable sourcing for safety-critical designs.
Supply support for VS-131MT180C 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-131MT180C belongs to Vishay's MTC-series power modules, engineered specifically for compact, high-efficiency three-phase AC/DC conversion in demanding industrial environments where thermal performance and safety certification are critical.
FAQ
What is the maximum allowable case temperature for continuous operation of the VS-131MT180C?
The VS-131MT180C is rated for continuous operation at a maximum case temperature (TC) of 120 °C when delivering its full 130 A average output current under 120° conduction angle. Exceeding this temperature requires derating per the manufacturer's current vs. case temperature curve (Fig. 1), and sustained operation above 120 °C risks accelerated parameter drift and reduced lifetime.
Does the VS-131MT180C require an external isolation pad when mounted to a heatsink?
No, the VS-131MT180C does not require an external isolation pad. Its MTC package features an electrically insulated baseplate certified to 3600 VRMS and UL-approved (E78996), allowing direct mounting to a grounded heatsink while maintaining reinforced insulation integrity without added thermal resistance.
What is the forward voltage behavior of the VS-131MT180C across its operating current range?
The VS-131MT180C exhibits two-region forward conduction: a low-slope region (VFT(TO)1 = 0.79 V, rf1 = 4.97 mΩ) below π × IF(AV), and a high-slope region (VFT(TO)2 = 0.96 V, rf2 = 4.63 mΩ) above that threshold. This dual-threshold behavior reduces total conduction loss across partial-load conditions common in variable-speed drives.
How does the thermal resistance of the VS-131MT180C change with conduction angle?
The junction-to-case thermal resistance (RthJC) of the VS-131MT180C varies with conduction angle: it is 0.068 °C/W at DC, 0.063 °C/W at 120° rectangular conduction, and increases to 0.109 °C/W at 60° conduction. These values reflect dynamic thermal impedance during pulsed operation and must be used in transient thermal modeling for surge conditions.
Is the VS-131MT180C suitable for use in transformerless photovoltaic inverters?
Yes, the VS-131MT180C is suitable for transformerless PV inverters due to its 3600 VRMS isolation rating and UL E78996 approval, which satisfy reinforced insulation requirements per IEC 62109-1. Its 1800 V VRRM also provides sufficient margin against DC-side transients in bipolar string configurations.
VS-131MT180C 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):
- 218 A
- Voltage - Forward (Vf) (Max) @ If:
- 2.05 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-131MT180C FAQ
1.How can I place an order for VS-131MT180C through Aetrix?
Please submit a Request for Quotation (RFQ) for VS-131MT180C 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-131MT180C reliable?
The price and inventory of VS-131MT180C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VS-131MT180C is usually 5 days.
3.What payment methods are accepted for VS-131MT180C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VS-131MT180C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VS-131MT180C?
VS-131MT180C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VS-131MT180C 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-131MT180C?
For technical support, including VS-131MT180C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VS-131MT180C requirements.
6.How does Aetrix verify that VS-131MT180C is sourced from the original manufacturer or authorized distributors?
All VS-131MT180C 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-131MT180C meets industry standards.
7.What is the process for return or replacement of VS-131MT180C?
All VS-131MT180C units undergo pre-shipment inspection (PSI). If there is an issue with VS-131MT180C, 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-131MT180C part is unused and in its original packaging.
Return procedure for VS-131MT180C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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