Relays For Battery Management Systems (BMS) Offers Unlimited Switching Cycles

By Jay Soni

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PhotoMOS HE relay series from Panasonic delivers increased creepage & clearance, stable on-resistance over lifetime, and unlimited switching cycles.

Credit : Panasonic

“Industrial BMS applications demand reliability and consistent performance over the product lifespan,” quoted Michael Renner, Product Manager at Panasonic Industry Europe. The need of heavy duty devices and equipment is in fact a primary need at any industry. The constant switching process may affect the product life as fast as rusting of a metal.

The new PhotoMOS HE relay series from Panasonic Industry Europe offers 5kV I/O isolation with an increased clearance and creepage distance on the output side. It also offers a miniature 1-Form-A DIP5 packaging, making it particularly suitable as the switching solution for Battery Management Systems (BMS) in storage systems, charging stations, and numerous other high voltage measurement and infrastructure control applications.

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PhotoMOS relays with a MOSFET output enjoy an almost unlimited lifetime if used according to the specifications. Moreover, they are extremely reliable, unaffected by vibration, and their On-resistance remains stable throughout their entire lifetime. The AQV258H5 HE series PhotoMOS relays – unlike electromechanical devices – are unaffected by vibration, a significant benefit in many industrial applications.

These new PhotoMOS series AQV258H5 relays also feature a low control current and low leakage current and produce no switching noise. Devices come with 5 pins to accommodate different creepage and clearance requirements, but a 6 pin version is also available.Both types are offered with through-hole or surface-mount terminations.

Features
  • Contact arrangement: 1 Form A
  • Load voltage [ VL ] : 1,500 V
  • Terminal shape : Surface-mount terminal
  • Continuous load current [ IL ] : Max.: 0.02 A
  • ON resistance (Maximum) [ Ron ] : 500 ohm
  • Package : DIP6
  • Product name : HE 1 Form A
  • Power dissipation [ Pin ] : 75 mW
  • Peak load current [ Ipeak ] : 0.06 A
  • Power dissipation [ Pout ] : 360 mW

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