PGD150S16 Sanrex Power Diode Module: An Engineer's Reference
Content last revised on October 8, 2025.
A Focused Look at the Core Specifications
Engineered for demanding power conversion applications, the Sanrex PGD150S16 is a robust power diode module designed for high-reliability rectification. This component delivers a straightforward, high-performance solution for converting alternating current (AC) to direct current (DC) in industrial systems. With core specifications of 1600V and 150A, it provides a solid foundation for power circuit design. Key benefits include effective power handling and a design centered on operational stability. This module directly addresses the need for a durable rectifier capable of managing the high-voltage inputs common in three-phase power systems. For industrial power supplies requiring robust, high-voltage rectification, the PGD150S16 offers a well-specified and reliable core component.
Key Parameter Overview
Highlighting Critical Metrics for Rectifier Design
The parameters for the PGD150S16 are tailored for industrial power rectification. The following table highlights the specifications that are critical for system design, thermal management, and reliability assessment. The high reverse voltage rating establishes its suitability for direct connection to high-voltage industrial lines, while its current rating defines its capacity for medium-power applications.
| Parameter | Symbol | Value | Unit | Significance |
|---|---|---|---|---|
| Repetitive Peak Reverse Voltage | VRRM | 1600 | V | Defines the maximum allowable repetitive blocking voltage, essential for 690V line applications. |
| Average Forward Current | IF(AV) | 150 | A | Indicates the maximum continuous DC current handling capability. |
| Isolation Voltage | VISOL | 2500 | V | Ensures safety and simplifies system insulation design between the module and heatsink. |
| Operating Junction Temperature | Tj | -40 to +150 | °C | Specifies the wide operational range, suitable for harsh industrial environments. |
Note: The specifications provided are based on available industry data for a module of this rating. For detailed specifications and performance curves, it is essential to consult the official manufacturer datasheet.
Application Scenarios & Value
System-Level Benefits in Industrial Power Conversion
The primary value of the PGD150S16 lies in its direct application as a core rectification component in a range of industrial systems. Its 1600V rating makes it an excellent candidate for the input stage of a Variable Frequency Drive (VFD) operating on 575V or 690V AC lines, providing the necessary safety margin against voltage transients. In this scenario, the engineer's main challenge is ensuring reliable conversion without component failure due to line voltage spikes. The PGD150S16's high VRRM directly addresses this, providing a dependable DC bus for the inverter stage. Its 150A capacity is suitable for powering motors in the 75 kW (100 HP) class, a common size for applications like industrial conveyors, pumps, and HVAC systems. The module's isolated baseplate simplifies thermal design, allowing for direct mounting to a common heatsink, which reduces assembly complexity and cost in systems like industrial UPS (Uninterruptible Power Supply) units and welding power supplies.
For systems that require a higher current rating for larger motor drives or power supplies, the related CM300DU-24H offers a higher current handling capability.
Frequently Asked Questions (FAQ)
What is the primary function of the PGD150S16?
The PGD150S16 is a power diode module, most commonly configured as a three-phase bridge rectifier. Its core function is to efficiently convert high-voltage three-phase AC power into DC power for use in industrial equipment.
How does the 1600V VRRM rating benefit my design?
A 1600V Repetitive Peak Reverse Voltage provides a significant safety margin for applications connected to 480V, 575V, or even 690V industrial AC lines. This high blocking voltage capability ensures the module can withstand the voltage spikes and transients common in industrial environments, enhancing the overall reliability and longevity of the power supply or motor drive.
What does the 150A current rating signify in practical terms?
The 150A average forward current rating indicates the module's capacity to continuously deliver 150 amps of DC current under specified thermal conditions. This makes it suitable for medium-power applications, such as three-phase motor drives in the approximate range of 75 kW (100 HP), industrial battery chargers, and power supplies for welding equipment.
What is the significance of the electrically isolated baseplate?
The isolated baseplate means there is a layer of ceramic insulation between the live electrical terminals and the metal mounting base of the module. This is a critical feature for simplifying thermal management. It allows multiple modules to be mounted on a single, non-isolated heatsink without the need for additional, often fragile, insulating pads, which reduces assembly complexity, improves heat transfer, and enhances system reliability.
Strategic Role in Industrial Systems
The PGD150S16 serves as a foundational building block for reliable industrial power conversion. Its specifications are not about pushing the limits of switching speed, but about providing a durable, stable, and easy-to-integrate solution for the critical first stage of power conversion. For design engineers developing systems for challenging industrial markets, specifying a component like the PGD150S16 is a strategic choice focused on long-term operational integrity and streamlined manufacturing. By providing robust rectification from high-voltage AC sources, it enables the effective operation of downstream components, from inverter stages to control circuits, ensuring the entire system is built on a solid power foundation provided by a trusted manufacturer like SanRex.
