Two series of TVS Diodes designed specifically to protect sensitive electronic equipment from voltage transients induced by load dump and other transient voltage events has been introduced by Littelfuse. The AEC-Q101 qualified TP1.5KE and TP5KP series Automotive Transient Voltage Suppression (TVS) Diodes offer a choice of 1500W (TP1.5KE) or 5000W (TP5KP) peak pulse power dissipation ratings in standard DO-201 and P600 axial-lead packages respecti...

Littelfuse has entered into definitive agreements to acquire the product portfolio of Transient Voltage Suppression (TVS) diodes, switching thyristors and Insulated Gate Bipolar Transistors (IGBTs) for automotive ignition applications from ON Semiconductor for a combined purchase price of $104m. This portfolio has annualised sales of approximately $55m. The transactions are expected to close in late August, 2016.

Designed to protect electronic equipment that may experience destructive ESD, Littelfuse has introduced the SP814x series of low capacitance TVS diode arrays. The devices integrate four or six channels of ultra-low-capacitance rail-to-rail diodes and an additional zener diode to safely absorb repetitive ESD strikes above the maximum level specified in the IEC61000-4-2 international standard (±8kV contact discharge) without performance degr...

Littelfuse has introduced two series of low capacitance TVS diode arrays optimised for protecting the NFC circuits of smartphones, tablets and other portable communication products from ESD damage. The SP3118 and SP3130 series TVS diode arrays include back-to-back TVS diodes fabricated in a proprietary silicon avalanche technology that absorb repetitive ESD strikes safely up to the maximum level specified in the IEC61000-4-2 international standar...

Littelfuse has introduced two series of TVS diode arrays (SPA diodes) designed to safeguard many of the latest high-speed interfaces from damage due to ESD. The SP7538P series TVS diode arrays integrate eight channels of ultra-low capacitance rail-to-rail diodes and an additional Zener diode in a µDFN-9 package. The SP0544T series TVS diode arrays have a similar design but are smaller, with four channels of ultra-low capacitance rail-to-rai...

Littelfuse has introduced a series of AEC-Q101 qualified TVS diodes designed to protect sensitive automotive electronic equipment from voltage transients induced by load dump and other events. The TPSMF4L series diodes offer 400W of peak pulse power dissipation in a compact, surface mount, flat-lead SOD-123FL plastic package with a low profile of just 0.98mm.

Two new series of miniature surface-mount two-terminal Gas Discharge Tubes (GDTs) designed to protect sensitive electronics from low-to-medium level lightning-induced surges and other voltage transients have been introduced by Littelfuse.

Protecting sensitive electronic equipment from ESD damage, the SP1026 series 15pF 30kV bidirectional discrete TVS diode array has been unveiled by Littelfuse.These robust general-purpose diodes can safely absorb repetitive ESD strikes at ±30kV (contact discharge, IEC 61000-4-2) without performance degradation and can safely dissipate 5A of 8/20μs surge current (IEC61000-4-5) with very low clamping voltages.

Following investment in Monolith Semiconductor, Littelfuse has set out its roadmap for SiC and IGBT development. The company offers IGBT modules rated up to 1,700V and 600A which are suitable for industrial drives, UPS, solar inverters, EVs and welding machines.

For applications that demand efficiency, reliability and thermal management, such as solar inverters, EV/HEV charging station, industrial power supplies, industrial drives, welding and plasma cutting, Littelfuse has introduced the LFUSCD series of SiC Schottky diodes.

At PCIM Europe 2016 in Nuremberg from 10th to 12th May 2016, Littelfuse will be unveiling families of SiC Schottky diodes and silicon IGBTs in Booth 7-140. An in-booth demonstration will illustrate the capabilities of Monolith’s SiC MOSFET technology with a 5kW buck converter with 675V nominal input and 350V nominal output. The converter switches at high frequencies around 200kHz with an efficiency over 98% that cannot be achieved with sili...

William Shenberger, Field Application Engineer at Littelfuse, offers his tips for Designing LED Bulbs using transient and surge protection devices. Designers of early indoor LED light bulbs faced numerous technical hurdles, including AC to DC conversion, thermal heat sinking, constraints imposed by current bulb sizes, electrical transients, not to mention the basic challenge of driving the LEDs that produce the light.

Littelfuse has successfully completed its acquisition of the circuit protection business of TE Connectivity for $350m in cash. The circuit protection business has a prominent position in polymer-based resettable circuit protection devices, with a global presence in the automotive, battery, industrial, communications and mobile computing markets. The acquired business has operations in Menlo Park, California and manufacturing facilities in Tsukuba...

The Electronica China exhibition, held on 15th-17th March 15-17 in Shanghai, saw Littelfuse add a series of silicon Schottky devices designed for ultra-low forward voltage drop (VF) to its expanding power semiconductor portfolio.

Featuring crush ribs on the capsule that requires no attachment accessories for installation, Littelfuse has introduced the 59040 series press-fit reed sensor. This magnetically operated sensor is designed to press-fit securely into a 9.5mm (3/8”) diameter hole and offers another sensor option for the competitive reed sensor market. Its enhanced sensitivity allows for a wider air-gap between the sensor and its matching 57040 actuator.

Expanding its power semiconductor portfolio, Littelfuse has announced the MBR series Schottky barrier rectifiers (standard Schottky) and the DUR series ultrafast rectifiers. Designed to meet the general requirements of commercial and industrial applications, both series will be displayed at Electronica China, 15th to 17th March, 2016, in Shanghai, in Booth No. 3522 (E3 Hall).

Littelfuse has introduced the company’s first discrete thyristor devices capable of withstanding voltage spikes higher than 1,200V. The Littelfuse Teccor SK225xD/SK255KD/SK625xD/SK655KD series SCR switching thyristors are unidirectional switches designed to handle voltage spikes and power surges in incoming AC power mains.

Upscreened for use in aerospace, military, industrial and medical applications, two series of high reliability TVS diodes have been introduced by Littelfuse. The SMCG-HR and SMCG-HRA series devices are designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning surges and other transient voltage events.

As part of the company’s strategy to move more significantly into power semiconductors for industrial and automotive markets, Littelfuse has made an investment in Monolith Semiconductor, a start-up company developing silicon carbide technology.

Wherever sources of sparks or excess heat are present, substances such as gases, petroleum products and airborne dusts or fibres pose a serious risk of triggering an explosion and subsequent fire. To minimise these losses, regulatory bodies around the world have worked to refine standards that will mitigate the spark flash potential that can be found in these working environments. By Bharat Shenoy, Littelfuse.