For more efficient electrical and electronic device protection against destructive higher power transient voltages, Littelfuse developed the AK series high current silicon transient suppressor.
The AK series replaces the ganging of between 40 and 150 5000 W silicon avalanche diodes (SAD), says Littlefuse, virtually eliminating manufacturing errors caused by incorrect board placement and connection of individual components thus reducing manufacturing costs. The series also simplifies design configuration and testing while increasing operating efficiency with less capacitance, leakage and resistance.
The AK series offers current handling up to 10 000 A (using 8/20 µs wave shape pulse as defined in IEC 61000.4.5) in a compact 16,5 mm leaded package. The configuration allows module manufacturers to fit high levels of surge capacity into smaller envelopes, for example, a 10 kA product in a slim DIN rail package. Littelfuse's exclusive 'Foldbak' technology further lowers clamping voltage levels below the diode's inherent avalanche state, providing increased protection levels.
Offered in both an AK6 (6 kA) and AK10 (10 kA) series, these devices are a good solution for AC line protection in susceptible applications such as TVSS panels, motor controls, UPS, and power conversion where both space and performance can be an issue. According to the company, the AK series has been shown to increase manufacturing yields by up to 10 times by eliminating placement errors and rework during the board assembly process. Because all series and parallel connections are optimised in one package, the series has lower slope resistance, lower lead capacitance and less leakage than discrete components.
The AK series exhibits as little as 2,0 nF of capacitance at up to 10 kHz and a very low clamping threshold, as little as 58 V. The devices offer bidirectional transient flow protection, with 'bleed through' leakage levels as low as 20 µA. Internal PN junctions are glass passivated for reliability.
For more information contact Stephen Delport, Hi-Q Electronics, 021 595 1307, [email protected]
Read more...Why wait to automate NewElec Pretoria
Circuit & System Protection
NewElec’s initiative helps you gain operational visibility via HMI or PLC by retrofitting intelligent motor protection relays without replacing MCCs or rewiring the plant.
Read more...High-voltage IGBT Hi-Q Electronics
Power Electronics / Power Management
Diotec Semiconductor has launched the DIW030M060 IGBT, a 600 V, 30 A device with a built-in reverse diode.
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...Clearing the Static: Cleaning in an ESD-protected area Actum
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.
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