Content last revised on February 9, 2026
36MT160 Vishay 1600V 35A Three-Phase Bridge Rectifier
The 36MT160, a cornerstone of the Vishay (formerly International Rectifier) power module lineup, is a high-performance three-phase diode bridge rectifier engineered for robust industrial power conversion. Delivering a 1600V repetitive peak reverse voltage and a 35A output current, this module provides the necessary voltage overhead and thermal stability for heavy-duty applications. Its primary engineering benefit lies in the compact D-55 package, which optimizes space while ensuring efficient heat dissipation through its isolated baseplate.
Top Specifications: 1600V | 35A | Rthjc 1.6 °C/W | Ifsm 475A.
Key Benefits:
- Superior voltage margin for 480V AC line rectification.
- High surge current capability (475A) for inductive load start-up.
What is the primary benefit of the 36MT160's high Vrrm? It provides a critical safety buffer against transient voltage spikes in industrial environments, preventing diode breakdown during line fluctuations. For engineers prioritizing thermal reliability in 440V/480V industrial drives, the 36MT160 1600V module represents the optimal technical choice.
Key Parameter Overview
Decoding Specs for Enhanced Thermal Reliability
The 36MT160 is characterized by its high energy density and low forward voltage drop, which directly translates to reduced power losses. The following data is derived from the official Vishay technical documentation.
| Operational Category | Technical Parameter | Value / Specification |
|---|---|---|
| Voltage Ratings | Repetitive Peak Reverse Voltage (Vrrm) | 1600V |
| Current Ratings | Maximum Output Current (Io) @ Tc=60°C | 35A |
| Current Ratings | Max Peak One-Cycle Non-Repetitive Surge (Ifsm) | 475A (50Hz) / 500A (60Hz) |
| Electrical Characteristics | Maximum Forward Voltage (Vf) @ If=40A | 1.19V |
| Thermal Characteristics | Max Junction-to-Case Resistance (Rthjc) | 1.6 °C/W |
| Mechanical Characteristics | Package Type / Isolation Voltage (Visol) | D-55 (MT) / 2500V |
Download the 36MT160 datasheet for detailed specifications and performance curves.
Application Scenarios & Value
Achieving System-Level Benefits in High-Frequency Power Conversion
Engineers often face the challenge of managing high inrush currents during the start-up of large Variable Frequency Drives (VFDs) or industrial motor controllers. The 36MT160 addresses this through its significant I2t rating of 1130 A2s (at 50Hz), which allows the module to withstand massive energy surges without catastrophic failure. In a typical Uninterruptible Power Supply (UPS) or Battery Charger architecture, this robustness ensures long-term system uptime even under unstable grid conditions.
In Solar Inverter stages, where the 36MT160 serves as a primary input rectifier, its 1600V rating provides an essential barrier against lightning-induced surges or grid switching transients. For designers requiring even higher current handling within the same architecture, the related VS-200MT160K offers a significantly higher 200A capacity while maintaining the 1600V standard. Understanding the core trio of module selection—voltage, current, and thermal management—is essential for optimizing these power stages.
The 36MT160's D-55 package features an electrically isolated baseplate, simplifying the mechanical assembly of the cooling system. Since the internal diodes are isolated from the mounting surface, multiple modules can be mounted on a single common heatsink without additional insulating pads, which significantly reduces the Thermal Resistance between the junction and the ambient environment. This integration-friendly design is a key factor in achieving the high power density required by modern Servo Drives and industrial power supplies.
Technical Deep Dive
A Closer Look at the Thermal Design and Surge Ruggedness
The internal architecture of the 36MT160 utilizes glass-passivated diode chips. Think of this passivation layer as a high-tech "armor" for the silicon; it shields the sensitive PN junction from environmental contaminants and stabilizes the leakage current at high temperatures. This is particularly critical when operating near the 150°C maximum junction temperature, where moisture or ionic impurities could otherwise lead to premature failure.
A critical parameter often overlooked is the Rthjc of 1.6 °C/W. To put this in perspective, if the module is dissipating 50W of power, the temperature difference between the silicon junction and the case will be 80°C. This relationship underscores the importance of mastering thermal management. Just as a high-performance engine requires an efficient radiator to prevent overheating, the 36MT160 requires a precisely calculated heatsink to maintain its 35A rating. If the heatsink is insufficient, the module's Safe Operating Area (SOA) will shrink, leading to thermal runaway.
Furthermore, the 36MT160's package is designed for Kelvin Emitter-like principles in its terminal layout, minimizing parasitic inductance. Low inductance is vital during high-frequency switching or when the rectifier is followed by a fast-acting PFC stage, as it reduces voltage ringing that could exceed the 1600V limit. This makes the module an excellent companion for high-efficiency IGBT Module configurations in Electric Vehicle (EV) charging infrastructure.
FAQ
Engineering Insights for 36MT160 Implementation
How does the 1600V rating of the 36MT160 benefit a 480V AC system?
In a 480V AC three-phase system, the peak voltage is approximately 678V. Engineers use 1600V modules like the 36MT160 to provide a 2.3x safety margin. This overhead is necessary to survive the Transient Overvoltages common in industrial plants caused by inductive load switching or power factor correction bank cycling.
Why is the I2t value of 1130 A2s significant for fuse selection?
The I2t value represents the thermal energy capacity of the diode's junction. To protect the 36MT160 from short-circuit damage, the engineer must select a high-speed semiconductor FUSE with a "clearing I2t" that is lower than the module's 1130 A2s. This ensures the fuse melts before the silicon junction reaches its melting point.
What are the cooling requirements for the 36MT160 at its full 35A rating?
To operate at 35A with a Tc=60°C, the heatsink must be able to dissipate roughly 40-50W (depending on the actual forward voltage drop at temperature). Given the Rthjc of 1.6 °C/W, the thermal interface material (TIM) and heatsink must be selected to keep the case temperature below the specified threshold to prevent the junction from exceeding 150°C.
Through precision engineering and the Vishay commitment to reliability, the 36MT160 remains a vital component for global industrial infrastructure. Its balance of voltage ruggedness and thermal efficiency enables designers to build more resilient power systems.
