Bourns' TISP4500H3BJ is a single bidirectional overvoltage protector developed for transformer-coupled xDSL applications.
It can be used as a 2-wire (A-B) protector, or as one element in a 3-wire (A-B-C) protector scheme. The main advantage of the TISP4500H3BJ is non-conduction under ITU-T power contact tests while still allowing the use of conventional capacitors for line-side interwinding coupling.
The 350 V, 0 to 70°C rated working voltage means no conduction under the 230 V rms (325,2 Vpk) testing, and the 500 V protection voltage (V(BO)) protects the interwinding capacitor under lightning tests. Power induction tests will cause conduction of the TISP4500H3BJ. The current and duration of the ITU-T induction test conditions (600 V rms ~1 A/s and 450 V rms -1500 V rms up to ~7,5 A for up to 2 s) is sustainable by a TISP4500H3BJ, however, additional components may be required to fully comply with ITU-T recommendations.
The TISP4500H3BJ enables designers to develop protection schemes that fully comply with ITU-T enhanced level testing, while removing the need for unwanted signal attenuating components previously associated with current limiting under AC power contact testing. The protection scheme now only has to comprehend primary protector coordination (if used), and induction test current. The device is rated for up to 200 A 10/700 and is able to provide protection under ITU-T recommendation K.21 enhanced test level (6 kV).
Clearing the Static: Conductive foot, heel and shoe grounders Actum Electronics
Circuit & System Protection
Conductive foot, heel and shoe grounders are used in electrostatic discharge protected areas to provide a path to ground for static electricity.
Read more...LED driver for industrial power supply indication Altron Arrow
Editor's Choice Circuit & System Protection
A simple and small solution for driving an LED to provide visual feedback in the presence/absence of a system’s power using a chip not originally designed for this purpose.
Read more...HiRel components from Kyocera AVX Electrocomp
Passive Components
Kyocera AVX Corporation is a leading supplier of advanced components and interconnect solutions, offering a broad selection of passive components and connectors.
Read more...Clearing the Static: Cleaning in an ESD-protected area Actum Electronics
Circuit & System Protection
Cleaning in a protected electrostatic discharge area is a critical task to maintain the integrity of sensitive electronic components and prevent damage caused by static electricity.
Read more...Ensuring safety with earth leakage protection NewElec Pretoria
Circuit & System Protection
Earth leakage protection helps mitigate the risks of electric shocks, fires, and equipment damage by swiftly identifying faults and disconnecting the power supply, thus safeguarding both human lives and machinery.
Read more...Suppressing EMI with filters Vepac Electronics
Circuit & System Protection
EMI/RFI filters play an important role in reducing the high-frequency noise that is generated by various electrical and electronic devices.
Read more...Patch attenuates like a shielding cabinet Würth Elektronik eiSos
Circuit & System Protection
Würth Elektronik has launched its hybrid WE-EMIP EMI absorber sheet, a convenient solution for reducing electromagnetic interference by up to 40 dB.
Read more...Clearing the Static: Ionisation equipment Actum Electronics
Circuit & System Protection
Electrostatic discharge (ESD) ionisation equipment is designed to neutralise static charges that accumulate on surfaces in environments where ESD-sensitive components or materials are handled. These ...
printer friendly version