Summary of PHOTORELAY OFFERS 1.2-A ON-STATE CURRENT RATING
Toshiba Electronics Europe introduced the TLP4590A photorelay in a compact DIP6 package. This 1-Form-B (normally closed) device offers a 1.2 A on-state current (140% improvement over TLP4176A), 60 V off-state voltage, low trigger LED current (max 2 mA), 5,000 Vrms isolation, and operates from -40°C to 110°C, targeting building automation, fire alarms, PLCs, I/O interfaces, and sensor control in demanding environments.
Parts used in the TLP4590A photorelay project:
- TLP4590A photorelay (DIP6 package)
- Trigger LED (integrated in photorelay; 2 mA max drive)
- Power supply capable of delivering up to 1.2 A load current
- Load/controlled circuit supporting up to 60 V off-state
- PCB or socket compatible with DIP6 package
- Isolation-rated wiring or creepage/clearance spacing for 5,000 Vrms isolation
- Thermal management provisions for -40°C to 110°C operation
With enhanced sensitivity, this photorelay provides engineers with a more convenient and reliable alternative to conventional mechanical relays.
Toshiba Electronics Europe GmbH has further strengthened its extensive optoelectronics portfolio with the introduction of a new photorelay. Supplied in a compact DIP6 package, the TLP4590A provides engineers with a more convenient and reliable alternative to conventional mechanical relays. This 1-Form-B (normally closed) photorelay has an on-state current rating of 1.2-A, which represents a 140% improvement on the company’s previous-generation TLP4176A device. In addition, it has a 60-V off-state output terminal voltage rating. Its sensitivity is enhanced thanks to the low trigger LED current of 2 mA (maximum) exhibited.
Among the key applications for these photorelays are those relating to building automation – including heating, ventilation, air conditioning and security systems, as well as fire alarms. They can also be used in various forms of industrial equipment, such as programmable logic controllers (PLCs), I/O interfaces and sensor control hardware. Their 5,000 Vrms (minimum) isolation voltage allows them to be employed in situations where elevated levels of insulation performance are required, while support for a -40°C to 110°C operational temperature range enables them to be installed within harsh environments.
Read more: PHOTORELAY OFFERS 1.2-A ON-STATE CURRENT RATING
- What is the on-state current rating of the TLP4590A photorelay?
The on-state current rating is 1.2 A. - How much has the on-state current improved compared to the previous-generation TLP4176A?
It represents a 140% improvement over the TLP4176A. - What is the maximum off-state output terminal voltage for the TLP4590A?
The off-state output terminal voltage rating is 60 V. - What is the maximum trigger LED current required for the TLP4590A?
The maximum trigger LED current is 2 mA. - What isolation voltage does the TLP4590A support?
It supports a minimum isolation voltage of 5,000 Vrms. - What temperature range can the TLP4590A operate within?
The operational temperature range is -40°C to 110°C. - Is the TLP4590A suitable for building automation applications?
Yes, key applications include building automation such as heating, ventilation, air conditioning and security systems. - Can the TLP4590A be used in industrial equipment like PLCs?
Yes, it can be used in programmable logic controllers, I/O interfaces and sensor control hardware.
