mobile | classic
Dataweek Electronics & Communications Technology Magazine

Follow us on:
Follow us on Facebook Share via Twitter Share via LinkedIn


Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2019


Self-resetting TVS devices feature negligible capacitance and offer accurate protection
12 September 2001, Circuit & System Protection

Designed to handle surge currents as high as 3000 A, Teccor Electronics has introduced its complete line of TVS components. Designated the SIDACtor Series these TVS suppressors utilise patented ion implant technology to provide complete surge protection within nanoseconds.

Transparent to the circuits they protect in standby mode, SIDACtor components exhibit a high off-state impedance, eliminating excessive leakage currents. Once triggered by voltages in excess of the switching voltage, the SIDACtor component simulates a short circuit condition until the current falls below the SIDACtor component's holding current. Once completed the SIDACtor device resets and returns to its high off-state impedance.

"Unlike most other surge suppression devices, SIDACtor devices offer absolute surge protection regardless of the surge current present and the rate of applied voltage," explained Phillip Havens, Teccor Product Manager. "In addition, the device cannot be damaged by voltage, it eliminates hysteresis and reduces the heat dissipation usually present in a clamping device."

Typically placed behind a slow blow fuse or other current limiting device, the SIDACtor devices eliminate voltage overshoot caused by fast rising transients. The series is rated with VDRM ranging from 6 to 320 V. The surge rating ranges from 50 A for a 10 x 560 ms event to 500 A for a 2 x 10 ms event. Peak operating temperatures for the SIDACtor components range from -40 to 150°C.

Common applications for Teccor's SIDACtor components include central office line cards, T-1/E-1, ISDN and xDSL transmission equipment, customer premises equipment (such as phones, modems and caller ID adjunct boxes), PBXs, KSUs and other switches. In addition, the components offer primary protection including main distribution frames, five-pin modules, building entrance equipment and station protection modules, data lines and security systems, CATV line amplifiers and power inserters and sprinkler systems.

SIDACtor components are available in the following packages: DO-214; TO-92; TO-220, Type 61; TO-220, two-chip; TO-220, balanced three-chip.

The SIDACtor Series provides approved solutions for Telcordia GR 1089, FCC Part 68, ITU-T K.21/K.20 and UL 1950 regulatory requirements.

For further information contact World Spectrum Sales, (011) 887 9111,

  Share on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • Vent panels for increased airflow and EMI protection
    26 June 2019, Actum Electronics, Circuit & System Protection
    Vent panels made by Laird Technologies offer effective ventilation within electronic equipment, while upholding signal integrity of the enclosure. Its MaxAir and ElectroVent solutions consist of layered, ...
  • High-speed fuses to protect critical power electronics
    26 June 2019, Altron Arrow, Circuit & System Protection
    Littelfuse high-speed (semiconductor) fuses protect critical power electronics from over-currents that may cause damage to electronic equipment. The company’s high-speed fuses are reliable, very fast-acting ...
  • PPTC resettable fuses
    29 May 2019, Electrocomp, Circuit & System Protection
    The Bourns Multifuse product line has added the new 8 V and 6 V rated Model MF-FSML/X series of low-resistance, surface-mount polymer positive temperature coefficient (PPTC) resettable fuses. The new ...
  • High-power resettable fuses
    29 May 2019, Electrocomp, Circuit & System Protection
    Bourns has introduced its new 3425 (8764 metric) size, surface-mount MF-GSMF series of Multifuse polymer PTC resettable fuses, beginning with model MF-GSMF300/36X-2. The initial model has higher voltage ...
  • Power and control line filter
    29 May 2019, RFiber Solutions, Circuit & System Protection
    Atlanta Micro announced a new product line of miniature power and control line filters named the AM35. The product range provides 6 filters in a tiny 1,5 x 3 mm package for filtering spurious signals ...
  • Hybrid over-voltage protectors
    30 April 2019, Electrocomp, Circuit & System Protection
    The brand new GMOV line of over-voltage protection components from Bourns combines the company’s patented, space-saving FLAT gas discharge tube (GDT) technology with a metal oxide varistor (MOV) to create ...
  • Compact fan for extreme conditions
    27 March 2019, Ebmpapst South Africa, Circuit & System Protection
    A new addition has been made to the 420J product range from ebm-papst. The tube-axial fans withstand temperatures down to -40°C and are now also available for 48 V d.c. voltage input, IP68 degree of ...
  • Fast-acting and time-lag SMD fuses
    27 March 2019, Electrocomp, Circuit & System Protection
    Bourns announced the introduction of three new families of fast-acting, fast-acting/low-voltage, and time-lag SMD fuses to complement its line of SinglFuse SMD fuse products.    The new SF-3812FG-T and ...
  • Automotive TVS diode
    27 March 2019, Electrocomp, Circuit & System Protection
    Bourns announced the release of the new Model SM8SF-Q transient voltage suppressor (TVS) diode series. This series is AEC-Q101 compliant and well suited for protecting sensitive electronics against voltage ...
  • High-current SMD fuses
    27 March 2019, Electrocomp, Circuit & System Protection
    Bourns introduced two new families of high-current and ultra high-current SinglFuse SMD fuses. The new Model SF-2923HC-C and Model SF-2923UC-C fuse families utilise a robust ceramic cube housing with ...
  • Resettable thermal cutoff devices
    27 March 2019, Electrocomp, Circuit & System Protection
    The SC series of miniature resettable thermal cutoff (TCO) devices is Bourns' new generation of surface-mount, miniature resettable thermal cutoff devices, following the established SA series. Miniature ...
  • ESD ‘protectifiers’
    27 February 2019, Hi-Q Electronics, Circuit & System Protection
    With the SE1J, Diotec has added an ESD protected diode to its portfolio of standard SMD rectifiers – a new member of the Protectifiers family. In today’s consumer and automotive electronics, the role ...

Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronics Buyers’ Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Terms & conditions of use, including privacy policy
PAIA Manual


    Classic | Mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.