High current voltage suppressor SMDs for DC and AC protection

01-12-2022 | Protek | Passives

ProTek Devices has launched a new series of 10kA bidirectional transient voltage suppressors for circuit protection in DC and AC, telecommunications infrastructure, and other industrial applications. These surfacemount devices can be connected in a series or parallel to create very high-capability circuit protection solutions.

The SKCxxxCS series comprises four devices. The SKC-058CS has a reverse stand-off voltage of 58V, the SKC-066CS is 66V, the SKC-076CS is 76V, and the SKC-086CS is 86V. The devices offer a clamping voltage lower than the avalanche voltage. Therefore, any voltage rise due to increased current conduction is contained to a minimum, supplying the best possible protection level.

The series provides compatibility with IEC standards 61000-4-2 (ESD): air plus or minus 30kV, contact plus or minus 30kV; with 61000-4-4 (EFT): 40A, 5/50ns; and with 61000-4-5 10kA (surge). They feature 1600kW peak pulse power (typical = 8/20 microseconds). Other features include a glass passivated junction and low slope resistance. The series also is RoHS compliant (exemption #7).

The series is delivered in an SMTO-218 (tab) package with an approximate weight of just 6.5 grams. It has high-temperature soldering of 260C for ten seconds at terminals, and the operating and storage temperature is -55C to 150C.

The company's circuit protection components comprise chipscale TVS arrays and EMI filter/TVS arrays, TVS diode arrays, thyristor surge suppressors, steering diodes and steering diode hybrid arrays, steering diodes, high-powered components and modules. They are employed worldwide in multiple applications to guard against diverse electric transient surges and high voltage spikes that can damage electronics investments. This includes aerospace subsystems, automotive subsystems, consumer electronics, computing interfaces, industrial and instrumentation equipment, medical devices, defence subsystems, and networking and communications equipment.

By Seb Springall