The SJ Series High-Temperature SCR (Silicon-Controlled Rectifier) Switching Thyristors offers blocking voltages (VDRM) up to 600 V and current ratings from 4 to 40 A to support a wide range of applications. By offering a wider operating margin than earlier SCRs, they make it possible to tolerate insufficient cooling and higher inrush currents at startup. […]
500-Vdc SMD fuse optimized for electric vehicle applications
A series of surface-mount fuses with interrupting current ratings up to 1,500 A are optimized for use in high voltage automotive applications up to 350 Vac or 450/500 Vdc. The NANO 885 Series Fuse is designed to protect electric vehicles against severe fault/short-circuit currents, ensuring reliability in harsh environments. With a low profile and a […]
Smallest 40 to 63-A cartridge fuses carry 2 kA/500 Vac interrupting rating
The smallest cartridge fuse series available that’s rated at 500 Vac has current ratings from 40 to 63 A and a 2,000 A@500 Vac interrupt rating. The 606 Series high-current Cartridge Fuse is designed for overcurrent protection in applications such as high-voltage power supply circuits rated up to 23 kW. With a 10×32-mm cartridge body, […]
Unidirectional TVS diode arrays protect I/O and power ports from ESD
Two new series of AEC-Q101-qualified, unidirectional TVS Diode Arrays are optimized to protect I/O and power ports against electrostatic discharges (ESDs). SP1053 and SP1054 Series TVS Diode Arrays (SPA Diodes) integrate avalanche breakdown diodes fabricated using proprietary silicon avalanche technology to protect each pin. These devices offer the advantages of being unidirectional and hermetically sealed […]
ESD protection for I/O and power ports with 01005-format TVS diode arrays
Littelfuse, Inc., introduced two series of AEC-Q101-qualified, unidirectional TVS Diode Arrays optimized to protect I/O and power ports against electrostatic discharges (ESDs). SP1053 and SP1054 Series TVS Diode Arrays (SPA Diodes) integrate avalanche breakdown diodes fabricated using proprietary silicon avalanche technology to protect each pin. These devices offer the unique advantages of being unidirectional and […]
AEC-Q101-qualified TVS diode arrays offer ESD (21kV) and surge (3A) protection
Littelfuse, Inc. introduced a series of AEC-Q101-qualified TVS Diode Arrays optimized to protect automotive Controller Area Network (CAN) lines from damage due to electrostatic discharges (ESDs), electrical fast transients (EFTs), and other overvoltage transients. AQ24CANFD Series TVS diode arrays can absorb repetitive ESD strikes above the maximum level specified in industry standards without performance degradation and can […]
Schottky diodes current ratings expanded to 8A, 15A, and 20A
Littelfuse introduced four new series of 1200V silicon carbide (SiC) Schottky Diodes from its GEN2 product family, which was originally released in May 2017. The LSIC2SD120A08 Series, LSIC2SD120A15 Series, and LSIC2SD120A20 Series offer current ratings of 8A, 15A ,20A, respectively and are provided in the popular TO-220-2L package. Additionally, the LSIC2SD120C08 Series offers a current […]
Gauging progress in SiC MOSFET technology
A review of SiC MOSFET performance data shows these devices have improved dramatically in a short time. And improvements are likely to continue. Kevin M. Speer, PhD | Littelfuse, Inc., Sujit Banerjee, PhD | Monolith Semiconductor Inc. Insulated gate bipolar transistors (IGBTs), first commercialized in the early 1980s, revolutionized the power electronics industry. Today, silicon […]
Fuses for power protection, Part 2
Part 1 of this FAQ explained fuse basics. Although fuses are simple in principle, selecting the most suitable fuse for the application is more complicated than it may seem at first. Q: What are the key questions to ask when selecting a fuse? A: These are just a few of the considerations: What is the […]
SiC MOSFET provides ultra-fast switching in power electronics
The LSIC1MO120E0080 Series, with a voltage rating of 1.2 kV and ultra-low (80 mΩ) on-resistance, is optimized for high-frequency switching applications, providing a combination of ultra-low switching losses and ultra-fast switching speeds that’s unavailable with traditional power transistor solutions. When compared with silicon devices that have the same rating, the SiC MOSFET Series enables substantially […]
