Power Electronics
TVS Diodes Offer Custom Upscreening

TVS Diodes Offer Custom Upscreening

Littelfuse, Inc. has expanded its offering of High-Reliability Transient Voltage Suppression (TVS) Diodes available with customized upscreening and sorting process flows. These components, which protect sensitive electronic equipment from voltage transients induced by lightning surge and other transient voltage events, have been specially screened and sorted for use in DC line protection in aviation electronics and other applications that demand high reliability. Littelfuse  are well-suited for DC power protection and ESD protection in aviation electronics (avionics) like FADEC, airplane sensors, avionics computers, fly-by-wire flight control systems, cockpit electronic equipment, and airport landing aid systems. Other uses include industrial applications such as the energy industry.

In addition to components with customizable upscreening and sorting process flows, Littelfuse has expanded its "off-the-shelf" upscreened High-Reliability TVS Diode offering with two new series: SMBJ HR Series and SMBJ-HRA Series. Both are available in compact SMB DO-214AA packages and are rated for 600W of peak pulse power dissipation. Both have undergone 100% screen sorting; the SMBJ-HR has also undergone Group B (surge test, HTRB, and electrical) test sorting.

Customizable process options available to meet customers™ high-reliability product performance requests include visual monitor in process, single wafer lot source, high temperature storage life, X-ray inspection, reflow (2X), temperature cycle test, 3 Sigma & dynamic test, customized Vbr/lr, additional sorting, HTRB, H3TRB, good traceability, and labeling.

These TVS Diode Arrays offer these key benefits:

·     Military screening process flow ensures high reliability to meet the requirements of aerospace, military, industrial, and medical applications.

·     Selection of high reliability sorting flows, which can be customized on request, provides the flexibility to address a variety of applications.

·     Standard voltage ranges and power ratings allow for incorporating  into circuit designs easily in compliance with the RTCA/DO-160 Standard (Environmental Conditions and Test Procedures for Airborne Equipment).

·     Long history of use in the aerospace industry ensures market-proven results. SMBJ-HR Series and SMBJ-HRA Series are available in minimum order quantities of 3,000 pieces in tape and reel packaging on 13-inch reels.

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