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, [email protected]
Further reading:
Clearing the Static: Key principles of ESD control in electronics manufacturing
Actum Electronics
Circuit & System Protection
Effectively managing electrostatic discharge is essential in electronics manufacturing to ensure not only product reliability, but also worker safety.
Read more...
Clearing the Static: Three steps for a dry ESD packaging system
Actum Electronics
Circuit & System Protection
For optimal storage, it’s essential to complete the dry-packaging system by adding Desiccant Packs and Humidity Indicator Cards.
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
...
Read more...
Motor and feeder protection for LV and MV environments
NewElec Pretoria
Circuit & System Protection
This relay from NewElec is a micro-controller-based precision instrument with ANSI protection elements, advanced control features, and switchgear controller logic integrating motor and feeder control functions.
Read more...
Clearing the Static: How to protect PCBs from electrostatic discharge and moisture
Actum Electronics
Circuit & System Protection
Printed circuit boards (PCBs) are essential components in most electronic devices. They are sensitive to environmental factors like electrostatic discharge (ESD) and moisture, which can cause significant
...
Read more...
Clearing the Static: ESD chairs: Essential tools in controlled protected areas
Actum Electronics
Circuit & System Protection
Static poses a significant risk in various industries, particularly those involving sensitive electronic components and equipment. To mitigate these risks, electrostatic discharge (ESD) chairs play
...
Read more...
Clearing the Static: ESD dissipative floor mats
Actum Electronics
Circuit & System Protection
Dissipative floor mats are specialised mats designed to protect sensitive electronic equipment and components from electrostatic discharge (ESD), by quickly drawing the static electricity off workers before they touch such items.
Read more...
printer friendly version