As consumers become increasingly dependent on wearables, circuit designers are tasked with incorporating advanced circuit protection technologies that safeguard the device as well as the user. Without proper protection, the device’s sensor circuits, battery-charging interfaces, buttons or data I/Os could be irreparably damaged by ESD that is often caused by close interaction with the user.

Designed to provide superior ESD protection for current-intensive applications, such as fast-charging peripherals or PoweredUSB, the SP1255P series has been announced by Littelfuse. The low capacitance ESD protection TVS diode arrays integrate three channels of ultra-low capacitance steering diodes with a low voltage TVS diode to provide maximum ESD protection of the USB data and ID pins, according to the IEC 61000-4-2 standard.

Close-differential switches, suitable for applications with limited space, have been introduced by Littelfuse. The MACD-14 and MASM-14, which extend the company’s reed switch product line, are capable of switching 200VDC at up to 10W. Enabling accurate performance in all operating conditions, the devices feature a sensitivity range of 10-30AT. 

A TVS diode, designed specifically to protect sensitive electronic equipment from voltage transients induced by load dump and other transient voltage events, has been released by Littelfuse. The SLD series TVS diode, which is AEC-Q101 qualified, offers a 5000W (10/1000μs) or 2200W (load dump) peak pulse power dissipation rating in a standard P600 package. 

Circuit protection technologies safeguard automotive electronics from damaging load dump. By Jim Colby, Manager, Business & Technology Development, Semiconductor Business Unit, Littelfuse.

Modules rated up to 1700V and 450A extend Littelfuse’s IGBT power control semiconductor offering. The company now offers half-bridge, six-pack, and PIM modules in S, D, H, W, and WB packages. As well as standard offerings, customised versions can meet exact specifications in drives and motion control, solar inverters, UPS and SMPS, and welding machines.

Littelfuse will be showcasing circuit protection technology, including a complete portfolio of semiconductor products at electronica 2014, which takes place from 11th to 14th November in Munich.

Arc-flash safety is a priority among plant professionals and protection technologies such as arc-flash relays are rapidly growing in popularity, it has been revealed. A survey, conducted by Littelfuse, found that while arc-flash danger was not a concern 10 years ago, 85% of the 825 respondents agreed or strongly agreed that arc-flash mitigation is important today. 

Expanding its offering of high-reliability Transient Voltage Suppression (TVS) diodes available with customised upscreening and sorting process flows, Littelfuse has announced the SMBJ-HR and SMBJ-HRA series. Rated for 600W of peak pulse power dissipation, the diodes are suited for DC power protection and ESD protection in avionics applications.

Today, patients rely on a growing number of portable medical devices such as glucose meters, blood pressure monitors or defibrillators. But even a seemingly minor electrostatic discharge could easily render a portable medical device useless. To ensure safe, reliable performance of these devices, their designers should use best practices to factor in circuit protection requirements from the earliest stages of the circuit design process. By James C...

  Designed to protect sensitive equipment from damage due to electrostatic discharge (ESD) and other overvoltage transients, the SPHV (unidirectional) and SPHV-C (bidirectional) series 200W discrete TVS Diode Arrays (SPA Diodes) have been introduced by Littelfuse.

Once aware of the danger, design engineers can easily help reduce the risk of chip damage caused by user-induced overvoltage transients, such as ESD. By Phillip Havens, Principal Engineer, Littelfuse, and Chad Marak, Director of Technical Marketing and TVS Diode Array Products, Semiconductor Business, Littelfuse.

AEC-Q101 qualified to ensure maximum reliability in the harshest environments, the SM712 series TVS Diode Array (SPA Diodes) has been introduced by Littelfuse. It protects RS-485 applications with asymmetrical working voltages (from -7 to +12V) from damage due to electrostatic discharge (ESD), electrical fast transients (EFT), and lightning-induced surges.

Littelfuse has introduced the SM24CANA Series 200W TVS Diode Array (SPA Diodes), for protecting the automotive Controller Area Network (CAN) Bus from damage due to electrostatic discharge (ESD), electrical fast transient (EFT), and other overvoltage transients. It absorbs repetitive ESD strikes above the maximum level specified in the IEC61000-4-2 international standard without performance degradation and safely dissipates 3A of surge current wit...

The SD and SD-C Series 450W, discrete, unidirectional and bidirectional TVS Diodes signals an expansion of Littlefuse's line of TVS Diode Arrays (SPA Diodes). Designed to protect against destructive ESD and lightning-induced surge currents, these fast-acting TVS Diodes are designed to replace MLVs in low speed and DC applications. The devices are able to provide this protection because they can safely absorb repetitive ESD str...

Optimised to protect sensitive equipment from damage due to electrostatic discharge (ESD), electrical fast transients (EFT), and lightning-induced surges, Littelfuse have introduced the SM series of two-channel TVS diode arrays. The devices offer robust protection against electrical threats to datacom ports (such as RS 232, RS-485, RS-422, RS-423) which are commonly used in automation equipment, diagnostic devices, security and alarm systems, pri...

Following 29 years with the company, Littelfuse has announced that David Heinzmann has been appointed to the role of Chief Operating Officer. Retaining his responsibility for the global operations of Littelfuse, in his new role as COO, Heinzmann will have all of the Littelfuse business unit Vice Presidents reporting directly to him.

Expanding the company’s portfolio of PLED Open LED protection devices, Littelfuse annonuce the release of the PLEDxUx unidirectional series open LED protector. The series is suited for applications including street, subway, and tunnel lights, aircraft/runway lights, outdoor signage and headlights.

Two new packaging options for Littlefuse's SP3012 Series TVS Diode Array line has been announced. Offering board designers more options and greater layout flexibility, the SP3012-03UTG (uDFN-6) and SP3012-04HTG (SOT23-6) devices also claim to offer up to 66% greater clamping performance than other industry options. This feature ensures greater chipset reliability.

Protecting sensitive electronic equipment from voltage transients, Littlefuse's Transient Voltage Suppression (TVS) Diodes are now being offerered to users with the ability to customize the upscreening and sorting process flows. The components have been screened and sorted for use in DC line protection in aviation electronics (avionics) and other applications that demand high reliability.