Power Electronics / Power Management


New ST tech for harder-working triacs

28 July 2021 Power Electronics / Power Management

Designed for thermally intensive heavy-duty applications, STMicroelectronics' 8H Series triacs are high-voltage (800 V) switches with full power line capability. Their immunity to adverse mains power EMC environments is ideal for driving tough loads in increasingly compact modules thanks to their un-derated ratings at up to 150°C.

Specified with a maximum junction temperature of 150°C, these triacs are particularly suited to hot environments and to PCB designs requiring high power density. Featuring a maximum current of 50 A with standard or logic-level gate sensitivity, ST offers two different series: 600 V 6H models and 800 V 8H models. Both are available in D²PAK, I²PAK or TO-220(I) packages.

More to the point, from 230 V single-phase to 400 V three-phase supplies, ST's 8H triacs are designed for use as an AC power switch for water heaters, industrial automation, HVAC, roller shutters and building lighting control units. With snubberless voltage transient immunity, these triacs are well adapted to switch reliably under EMI disturbance and adverse power grid environments typical of these AC network connected applications.

Thanks to its low and stable leakage currents and transient current switching capability twice the nominal current, the 8 to 30 A range of the 8H triacs ensures excellent switching capabilities. Available in a ceramic-insulated TO-220AB package, D2PAK or classical TO-220AB packages, 8H triacs also let designers reduce the size of heatsinks in their solutions thanks to the maximum 150°C junction temperature (TJ). A silicon semiconductor and solid-state solution, this series offers advantages over traditional relays including its sparkless and non-ageing switch characteristics.


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Rugged railway-grade DC-DC power modules
iCorp Technologies Power Electronics / Power Management
iCorp Technologies has introduced the AIPUPOWER ZCD100 and ZCD150 Series, a family of rugged DC-DC converters designed to meet the demanding electrical and environmental requirements of railway and transportation systems.

Read more...
NXP has expanded its MCX A Series
Altron Arrow AI & ML
NXP has significantly expanded its MCX A Series of Arm Cortex-M33 microcontrollers, doubling the portfolio with six new families aimed at industrial and IoT edge applications.

Read more...
Surviving the extremes: Understanding shock and vibration in MEMS sensors
Altron Arrow Editor's Choice Test & Measurement
By considering factors such as mechanical headroom, damping, and system-level robustness, designers can ensure that the chosen sensor not only survives, but performs reliably over time.

Read more...
Four-quadrant regenerative grid simulator
Conical Technologies Power Electronics / Power Management
The IT7900EP series high-performance regenerative grid simulator from ITECH is a full four-quadrant AC grid simulator capable of both sourcing and sinking power.

Read more...
90 W PSU with 150% boost capability
Brabek Power Electronics / Power Management
RECOM’s cost effective REFIN2U-S90/CL DIN rail AC/DC boasts a 90 W rating with a boost capability of 150% for 4,5 seconds to allow for surge loads.

Read more...
Exploring Bluetooth Channel Sounding
Altron Arrow Telecoms, Datacoms, Wireless, IoT
NXP has enabled BCS on the MCX W72 multi-protocol wireless MCU, which supports Bluetooth Low Energy 6.0, Thread, Zigbee, and Matter.

Read more...
Standalone USB PD controller
Future Electronics Power Electronics / Power Management
The STUSB4531 from STMicroelectronics is a standalone USB Power Delivery sink controller designed to streamline the implementation of USB-C power negotiation in sink devices without requiring a full software stack on a host microcontroller.

Read more...
Dual-band Wi-Fi 6 companion module
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The SimpleLink Wi-Fi CC33xx family of devices from Texas Instruments are dual-band Wi-Fi 6 companion modules enabling engineers to connect more applications with confidence.

Read more...
Power module enhances AI data centre power density
Altron Arrow Power Electronics / Power Management
Microchip’s MCPF1525 power module with PMBus delivers 25 A DC-DC power and is stackable up to 200 A.

Read more...
MIL-Spec DC-DC power converters
Vepac Electronics Power Electronics / Power Management
PowerGood has introduced a range of 15 W to 600 W military DC-DC power converters engineered for mission critical defence applications.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved