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).
Smarter protection without disruption NewElec Pretoria
Circuit & System Protection
Designed for operations still running without integrated automation, NewElec’s retrofit-friendly systems let you upgrade performance and safety without overhauling your entire network.
Read more...Circuit breaker for reliable, compliant protection RS South Africa
Circuit & System Protection
Legrand’s low-voltage power distribution portfolio encompasses the DX3 range of miniature circuit breakers, designed to deliver dependable protection in residential, commercial and industrial installations.
Read more...Reducing noise on power supply lines Future Electronics
Circuit & System Protection
Murata has introduced the EMIFIL ESD Series Noise Filters, a breakthrough solution engineered for superior noise suppression and enhanced electrostatic discharge (ESD) protection.
Read more...Protect your pumps – protect your profit NewElec Pretoria
Circuit & System Protection
In South Africa’s demanding agricultural landscape, irrigation is not just an essential service – it is the heartbeat of farm productivity.
Read more...New 3dB hybrid couplers Electrocomp
Telecoms, Datacoms, Wireless, IoT
Designed to facilitate the continued evolution of high-frequency wireless systems in various market segments, the new DB0402 3dB 90° hybrid couplers provide repeatable high-frequency performance compatible with automated assembly.
Read more...Robust series of vertical-mating battery connectors Electrocomp
Interconnection
KYOCERA AVX has further expanded its industry-leading selection of standard battery connectors with the introduction of the new 9155-900 Series 2,5 mm-pitch vertical-mate battery connectors.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version