Unidirectional left and bidirectional right. The combination of small size and high esd surge capability makes it ideal for use in portable applications such as cellular phones digital cameras and mp3 players. Tvs Diode Protection For Vfds Igbt Inverters Micronote 135 1 Failure Mechanisms For Transient Voltage Automotive Circuit Protection Using High Reliability Tvs When a transient occurs the tvs clamps instantly to limit beclamped to a safe level by the tvs fig. How to test a bidirectional tvs diode . Low capacitance bidirectional tvs diode. In this case the tvs diode still shows the iv curve of the diode character but with a decreased breakdown voltage. After doing bench testing on the unit it seems that the i v curve is only showing uni directional junction of a typical diode. I had supplied ve supply to the anode connection d1 and ve supp...