The ZL70270, ZL70271, ZL70272, ZL70273, ZL70274, and ZL70288 from Zarlink Semiconductor make up a family of transient surge suppressing devices designed specifically for implanted medical devices. Five-, six-, and seven- terminal models are available. The device terminals exhibit extremely low leakage during normal voltages and can, therefore, be connected in parallel with the pins of the device they protect. When the voltage rises to a dangerous level, it rapidly turns on and limits the voltage by shunting the current through its thyristors. This function makes the ZL70270/71/72/73/74/88 family an effective means of compliance with international regulations EN-45502, “Active implantable” and EN-50061, “Safety of Implantable Cardiac Pacemakers.” Download more product information from the Zarlinkwebsite.