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Toshiba Launches Ultra-Low Power Consumption Photorelay

Toshiba Corporation (TOKYO:6502) has launched photorelays that achieve an 80% reduction of trigger LED current over the previous model. The new TLP171 series employs a high luminosity LED to control the trigger LED current to 0.2mA (max.) against the 1.0mA (max.) of the previous TLP170 series. The reduction of power consumption offers developers the option of battery drive or direct drive from a microcontroller, which can reduce the number of peripherals and achieve smaller set design. The new product is suited for such applications as the replacement of mechanical relays, security systems, measuring and control instruments, factory automation control systems and amusement machines.

Toshiba Ultra-Low Power Consumption Photorelay (Photo: Business Wire)

Toshiba Ultra-Low Power Consumption Photorelay (Photo: Business Wire)


Main Specifications

Item   Symbol   Unit   TLP171A   TLP171D   TLP171GA   TLP171J
Package - - 2.54SOP4

OFF-state output terminal voltage (Min)

VOFF V 60 200 400 600

ON-state current (Max)

ION mA 400 200 100 70

ON-state resistance (Max)

RON Ω 2 8 35 60

Trigger LED current (Max)

IFT mA 0.1 (@t<1s)
0.2 (@t>1s)

OFF-state current (Max)


Turn-on time (Max)

tON ms 5

Turn-off time (Max)

tOFF ms 5

Isolation voltage (Min)

BVs Vrms 1500

*Follow this link for more on this product.

Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.

About Toshiba

Toshiba is a world-leading diversified manufacturer, solutions provider and marketer of advanced electronic and electrical products and systems. Toshiba Group brings innovation and imagination to a wide range of businesses: digital products, including LCD TVs, notebook PCs, retail solutions and MFPs; electronic devices, including semiconductors, storage products and materials; industrial and social infrastructure systems, including power generation systems, smart community solutions, medical systems and escalators & elevators; and home appliances.

Toshiba was founded in 1875, and today operates a global network of more than 550 consolidated companies, with 202,000 employees worldwide and annual sales surpassing 6.1 trillion yen (US$74 billion). Visit Toshiba's web site at

About Business Wire
Copyright © 2009 Business Wire. All rights reserved. Republication or redistribution of Business Wire content is expressly prohibited without the prior written consent of Business Wire. Business Wire shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.

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