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Discretes

Thermoelectric coolers as small as 1.6mm

Laird Thermal Systems LT2229-MBX cooler

Laird Thermal Systems is offering mini thermoelectric coolers, with footprints as small as 1.6 x 1.6mm and thickness down to 0.9mm. Called the OptoTEC MBX series, they are designed for lidar systems in autonomous vehicles, telecom pluggable optical transceivers and indium phosphide VCSELs. Two solder constructions are available to accommodate reflow temperatures up to 230°C or 280°C. Lead attachments are ...

1.2kV 80mΩ SiC mosfet comes in TO247-4

Diodes SiC mosfet DMWS120H100SM4

Diodes has introduced silicon carbide mosfet rated at 1,200V and 37A for industrial motor drives, solar inverters and electric vehicle battery chargers. Dubbed DMWS120H100SM4, its packages transfers heat at 0.6°C/W “making it well-suited for applications running in harsh environments”, according to the company, Rds(on) is typically 80mΩ (Vg=15V, 100mΩmax) and gate charge is typically 52nC (-4/+15Vg, 800Vd, 20Ad). Its 37A ...

650V IGBT aimed at 60kHz power factor correction

Toshiba GT30J65MRB igbt efficiency

Toshiba is aiming at 60kHz power factor correction stages with a 650V 60A reduced switching loss IGBT. “Using previous generation IGBTs, the PFC stage of air conditioners would have an operating frequency below 40kHz,” it said. The new device, GT30J65MRB, comes in a TO-3P(N) and typically dissipates 350μJ when turning off at 175°C “an improvement of at least 40% when ...

JEDEC adopts top-side-cooled surface-mount power package

Infineon QDPAK and DDPAK JEDEC package

JEDEC has adopted a pair of top-side-cooled surface-mount packages created by Infineon for high-voltage mosfets. Dubbed QDPAK and DDPAK (in-use, below left), they are intended to replace through hole TO247 and TO220 (respectively) and “deliver equivalent thermal capabilities with improved electrical performance”, said Infineon. “JEDEC package registration, according to MO-354, serves as an enabler for the transition of high-voltage industrial ...

Updated: Novel bipolar device drops only 0.6V in 1.2kV 100A circuit breaker

IdealPower-Btran-bidirectional-module-300x200.jpg

Ideal Power has launched the first commercial version of its novel bi-directional semiconductor power switch, a multi-die module rated at 1,200V 100A (25°C, 50A 100°C) aimed at solid-state circuit breakers (SSCBs) and matrix converters. Updated below to include driving requirements Called IPAM01210C10, “the power module was designed specifically to enable SSCBs to deliver very low conduction losses, while operating orders ...

Toshiba mosfet package for 400A automotive use

Toshiba LTOGL mosfet package construction

Toshiba has created a gull-wing mosfet package specifically for high current automotive applications, and has released a 400A 40V mosfet in it. Branded L-TOGL and measuring 9.9 x 11.8 x 2.3mm (right), the AEC-Q101-capable package is designed for up to 175°C, 100V, 400A, 750W, with minimum mosfet device Rds(on) around 300μΩ. This compares with 250A, 372W and ~740μΩ from the ...

Diodes’ first SiC Schottky diodes reach 650V and 1.2kV

Diodes SiC Schottky DSCxxA065_DSCxx120

Diodes has announced silicon carbide Schottky diodes rated at 650V and 1.2kV, the company’s first SiC Schottkys. The DSCxxA065 series has eleven 650V diodes rated at 4, 6, 8 or 10A. The DSCxx120 series has eight 1.2kV diodes rated at 2, 5 or 10A. “These wide-bandgap Schottky barrier diodes bring the benefits of significantly improved efficiency and high-temperature reliability,” said ...

Multi-layer polymer chip capacitors for dc-dc converters and filtering

CornellDE-XMPL

Cornell Dubilier is addressing higher voltage and higher capacitance applications with extensions to its XMPL polymer chip capacitor series, which all measure 7.3 x 4.3 x 1.9mm (EIA ‘7343’). “With low ESR and robust ripple current ratings, they will outperform surface mount electrolytics of greater size,” claimed the company. They “also provide longer life, greater stability with temperature changes, and ...

Magnetic components switch identify for aerospace use

News-Exxelia_Magnetics_CCM_Technology-300x200.jpg

Magnetic components which can be either an inductor or a transformer depending on inductance ranges, make up Exxelia’s Chameleon Concept Magnetics (CCM) family. The components are available from New Yorker Electronics and have been introduced alongside the existing SESI and TT families to withstand harsh environments, particularly in aerospace and space applications. There are five sizes available, the CCM4, CCM5, ...

15V 20kA bi-directional transient suppressor in 17x15mm DFN

bourns_ptvs20_015c_h transient diode

Bourns has released its highest current carrying bi-directional transient voltage suppressor diode series in surface-mount DFN packaging (17 x 15 x 2.5mm in this case). Model PTVS20-015C-H is capable of handling 20kA surges. “The diode meets IEC 61000-4-2 Level 4 ESD protection requirements. It also assists in meeting IEC 61000-4-5 8/20 μs current surge requirements for lightning protection and is ...