HHV1WSFT-73-390K

Through Hole Resistors

A through hole resistor is an electrical component, typically of a cylindrical shape, that restricts electrical current flow. It is available in two core styles, surface mount (SMD) and through-hole (THT). Through-hole resistors come with two leads which are inserted and soldered through a plated hole on the circuit board. Unlike chip style components, through-hole resistors typically require a larger plating hole to provide adequate space for the soldering.

HHV1WSFT-73-390K application field and working principle

The HHV1WSFT-73-390K is part of the High Voltage Through Hole Resistor family from Vishay and is an advanced application-specific device, designed for high voltage (>200V) current limiting. It is a ceramic body, axial lead through-hole miniature current limiter, suitable for high voltage protection applications in industrial, aerospace, medical, consumer and automotive industries. This resistor offers quick and reliable current limiting over the full voltage range, reducing chances of catastrophic failure on your equipment.

This through-hole resistor has a working principle that is based on a combination of circuit-level design parameters. It is manufactured with two (or three) internal resistors connected in parallel. A positive voltage applied to one end of the device increases the parallel circuit’s capacitance. This increase in capacitance reduces the current in the circuit, thus limiting it. This is what helps protect your equipment from catastrophic failure.

The HHV1WSFT-73-390K can be used in a wide range of applications, including automotive, industrial, aerospace, medical, and consumer electronics. It is commonly used for voltage regulation, power conversion, motor control, power factor correction, and EMI/RFI filtering. It is also suitable for use in automotive circuits, medical equipment, aircraft systems, high voltage power supplies, and communications devices.

The HHV1WSFT-73-390K through hole resistor is a robust and reliable device capable of providing response times of roughly 2ns, and can operate across a wide temperature range of -55°C up to +105°C. The HHV1WSFT-73-390K also has a short-circuit protection feature included, as well as self-resetting capabilities if an overload is detected.

The Vishay HHV1WSFT-73-390K advanced application-specific device allows engineers to customize their products with complex safety features, and provides users with long-term reliability and protection from current overloads. As a through-hole resistor, it can be easily used in your printed circuit board design. It also includes self-reset feature and temperature coefficient, providing reliable over-current protection.