BSPM3690WER

TVS - Varistors, MOVs, are used in a wide range of applications, from protecting sensitive equipment from electrical overvoltages, to regulating voltage in electronics devices. The BSPM3690WER is an ultra low capacitance (ULC) transient voltage suppressor (TVS) which is designed to protect sensitive electronic devices against high energy transients. It operates using a unique mechanism which combines both an air gap and an oxide gap for maximum protection.

BSPM3690WER Application Field

The BSPM3690WER is a multipurpose device used in both AC and DC applications. It shows superior performance during very fast rise times such as those occurring on computer bus and data lines. The BSPM3690WER is suitable for protecting electronic modules from high frequency lightning transients in automotive applications, along with being used for industrial and consumer electronics. It is also suitable for use in medical and home applications as it can protect circuits from overvoltage.

Working Principles

The BSPM3690WER is a unique MOV (metal oxide varistor) device, which includes both an oxide gap and an air gap. The oxide gap is designed to protect circuits from overvoltage whereas the air gap is used to provide additional protection for extreme pulse or transient conditions. The oxide gap works by providing an abrupt, non-linear voltage-current characteristic when an overvoltage condition occurs. This causes a very large voltage drop to occur, reducing the input voltage and protecting the sensitive circuit from overvoltage. The air gap provides additional protection from transients or very fast rise time events which may exceed the capacity of the oxide gap. The air gap works by ionizing the air between two electrodes producing a spark gap. The spark gap provides an arc current which diverts any high frequency transients away from the sensitive electrical device.

Conclusion

The BSPM3690WER is a powerful and unique TVS device which combines an oxide gap and an air gap to provide superior protection to sensitive electronic devices from high energy transients. The BSPM3690WER is suitable for protecting both AC and DC circuits, and is ideal for use in a variety of applications such as automotive, industrial, medical and home electronics. By combining both an oxide gap and an air gap, the BSPM3690WER is able to provide exceptional protection for fast rise time and transient conditions.