## SanRex PK160F-80 | Robust 800V Dual IGBT Module for High-Reliability Power Conversion
The SanRex PK160F-80 is a high-performance, dual-thyristor module engineered for robust and efficient power control in demanding industrial applications. With an 800V blocking voltage and a 160A average on-state current rating, this module delivers a dependable solution for power rectification and switching circuits. Its design prioritizes thermal efficiency and mechanical simplicity through an electrically isolated mounting base, streamlining system assembly and enhancing long-term reliability. The PK160F-80 stands out as a workhorse component for engineers developing cost-effective, high-current power conversion systems.
### Key Parameter Overview
Engineers require precise data to optimize their designs. The SanRex PK160F-80 provides a well-balanced set of characteristics tailored for industrial power control. The specifications below underscore its suitability for medium-frequency, high-current applications where reliability is paramount. For a comprehensive list of electrical and thermal characteristics, Download the Datasheet.
| Parameter | Value |
|---|---|
| Repetitive Peak Reverse Voltage (VRRM) | 800V |
| Average On-State Current (IT(AV)) | 160A |
| R.M.S. On-State Current (IT(RMS)) | 250A |
| Surge On-State Current (ITSM) | 5500A |
| Critical Rate of Rise of On-State Current (di/dt) | 200 A/µs |
| Isolation Breakdown Voltage (VISO) | 2500V (R.M.S.) |
| Operating Junction Temperature (Tj) | -40 to +125 °C |
### Application Scenarios & Value Proposition
The robust design of the SanRex PK160F-80 makes it a versatile component for a variety of high-power systems. Its primary value lies in delivering reliable power control with simplified thermal management.
* **AC/DC Motor Drives:** In variable frequency drives (VFDs) and DC motor controllers, the PK160F-80 serves as a dependable rectifier or controlled switching element. Its high surge current capability (5500A) is critical for handling motor inrush currents, while the dual-element package simplifies the construction of bridge rectifier circuits.
* **Industrial Heater Controls:** For applications requiring precise temperature regulation, such as industrial furnaces and plastic molding machines, this thyristor module offers excellent phase-angle control capabilities. Its low thermal impedance ensures efficient heat transfer to the heatsink, a key factor for continuous operation.
* **Static Switches:** The module's fast turn-on characteristics and high dv/dt rating (500V/µs) make it a strong candidate for solid-state relays and static switches. These applications benefit from the long operational life and reliability of semiconductor switching over mechanical contactors.
* **Uninterruptible Power Supplies (UPS):** In UPS systems, the PK160F-80 can be employed in the rectifier stage to convert AC input to DC for battery charging and inverter supply. Its isolated base simplifies assembly and enhances the safety and reliability of the overall system.
### Technical Deep Dive
A closer look at two core features reveals the engineering expertise behind the SanRex PK160F-80 and its direct benefits for system designers.
Electrically Isolated Baseplate
One of the most practical design features of the PK160F-80 is its electrically isolated mounting base. The module provides 2500V (RMS) of isolation between the active semiconductor elements and the metal baseplate. This design eliminates the need for separate, often fragile, insulating pads (e.g., mica or silicone) and simplifies the mounting process. Engineers can directly mount the module to a system chassis or heatsink, ensuring optimal thermal management without complex assembly steps or risking insulation failure. This approach reduces component count, lowers assembly costs, and improves the mechanical ruggedness of the final product.
High di/dt and Surge Current Tolerance
The module is specified with a critical rate of rise of on-state current (di/dt) of 200 A/µs and a non-repetitive surge current (ITSM) rating of 5500A. This robustness is vital for applications with inductive loads or potential fault conditions, such as motor drives and welding power supplies. The high di/dt rating ensures the device can safely handle rapid current increases without localized hot-spotting and failure. Understanding these dynamic characteristics is a crucial part of decoding IGBT datasheets and selecting the right component for reliable operation in electrically harsh environments.
### Frequently Asked Questions (FAQ)
What is the main advantage of a thyristor module like the PK160F-80 compared to an IGBT module?
Thyristor (or SCR) modules are typically used for line-frequency (50/60 Hz) rectification and phase-angle control, where they offer very high current handling and excellent robustness at a lower cost. IGBT modules, in contrast, are designed for high-frequency switching (kHz range) and are used in applications like inverters and switch-mode power supplies where fast, controlled turn-off is essential.
Can this module be used in a three-phase bridge rectifier?
Yes. Three PK160F-80 modules can be used to construct a full-wave, three-phase controlled rectifier. The dual-element configuration within each module simplifies the layout and busbar design for such a bridge.
What are the key considerations when designing a gate drive circuit for the PK160F-80?
As a thyristor, the PK160F-80 requires a specific gate current pulse to turn on. The gate drive circuit must supply sufficient current and voltage (as specified in the VGT/IGT ratings) to ensure reliable latching, especially with inductive loads. Unlike an IGBT, it does not require a continuous gate voltage to remain on, and turn-off is achieved by bringing the anode current below the holding current level (current commutation).
