ROV14E221K

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The ROV14E221K is a type of TVS - Varistors, MOVs, and it is widely used to protect high energy voltage transients. It is a transient voltage suppressor (TVS) designed to protect electronic circuits from voltage transients induced by lightning, electrical fast transients and other electrostatic discharges. The ROV14E221K has a low working voltage and can operate up to +14 volts DC.

The ROV14E221K is designated to safeguard electronic circuits against low and high energy transients, such as those produced by lightning. It features an advanced on-chip transient current limiting circuit that quickly responds to voltage transients by providing a low internal impedance path to reduce the peak voltage of a transient event. The overall transient response time of the device ranges from nanoseconds to microseconds, and it has a peak pulse power rating of up to 14V. The device is also available with an optional additional 10µA bias current pin.

The ROV14E221K is a voltage-variable varistor (VAR) that is triggered when an overvoltage transient occurs. It features a metal-oxide-semiconductor field-effect transistor (MOSFET) gate that is connected to electrodes on the outer surface of the device. When a transient pulse is applied to the device, the gate is switched on, allowing current to pass through the device and create a discharge path to the ground. This discharge path dissipates the transient energy, thus limiting the surge’s amplitude.

The ROV14E221K is designed with a thermally protected metal-oxide-semiconductor field-effect transistor (MOSFET). This design feature helps protect the ROV14E221K from excessive temperature conditions and provides improved reliability. It also includes an on-chip thermal shutter for overcurrent protection and an overvoltage protection circuit to prevent semiconductor damage in the event of an excessive surge voltage.

The ROV14E221K also incorporates a unique dual lead technology known as “Dual-Lead Funneling” that helps to ensure better board layout for mangling leads and protecting delicate traces. The Dual-Lead Funneling design provides a larger area for soldering and also reduces the point of contact on adjacent traces to minimize parasitic inductance and capacitance generated between traces. This feature also helps to minimize ground loop issues.

In addition, the ROV14E221K offers a low leakage current of only 6 mA, which helps reduce power dissipation in electronic circuits. It also offers excellent current handling capability up to 15 A, making it suitable for a wide range of applications. The ROV14E221K is designed to meet UL 94V-1 standard and is compliant with the IEC 61000-4-2 standard.

The ROV14E221K has many applications, including circuit protection for automotive electronics, data lines, power supplies, and consumer electronics; transient protection for LAN and telecom applications, and overvoltage protection for critical automotive, commercial, and consumer electronics. The ROV14E221K is ideal for many general-purpose applications as well since it offers protection against both ESD and other voltage transients.

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