What is the Toshiba TLP225A?

The TLP225A is a single-channel MOSFET-output photorelay (solid state relay) from Toshiba. It couples a gallium-arsenide infrared LED to a photo-MOSFET output in a 4-pin plastic DIP (DIP4) package, providing isolated, bounce-free switching of low-current loads.

What are the key electrical ratings of the TLP225A?

The TLP225A is rated for a 60 V peak off-state voltage, 0.5 A maximum on-state current, 1.1 u03a9 maximum on-state resistance, a 5 mA maximum trigger LED current, and 2500 Vrms minimum isolation voltage.

What package does the TLP225A use?

It uses Toshiba's DIP4 package, a 4-pin through-hole plastic DIP with approximate dimensions of 4.58 x 7.62 x 3.65 mm.

Is the TLP225A still in production?

No. The TLP225A has been declared end-of-life (obsolete) by Toshiba. Toshiba lists the TLP240A as a recommended replacement with nearly identical package and characteristics. Pacific Component Xchange can source the original TLP225A for legacy and maintenance needs.

What is the recommended replacement for the TLP225A?

Toshiba recommends the TLP240A as a successor, noting that its package and characteristics are almost the same as the TLP225A. Always verify against your design before substituting.

How can I buy the obsolete TLP225A?

Because the TLP225A is end-of-life with little authorized-distributor stock, it is offered as a request-for-quote (RFQ) item. Submit an RFQ to Pacific Component Xchange and our team will provide current availability, lead time, and pricing.

TLP225A – Photorelay – Toshiba

The Toshiba TLP225A is a single-channel MOSFET-output photorelay (solid state relay) in a 4-pin DIP package, rated 60 V peak off-state voltage and 0.5 A on-state current with 2500 Vrms isolation. Now obsolete and available for RFQ.

Brand:Toshiba

SKU: TLP225A Categories: Electronic Parts, RFQ

Please contact us or add to quote for current pricing and availability.

The Toshiba TLP225A is a 1-channel (1-Form-A) MOSFET-output photorelay that pairs a gallium-arsenide infrared LED with a photo-MOSFET output stage inside a compact 4-pin plastic DIP (DIP4) package. It delivers normally-open contact switching with no mechanical contacts, providing long operating life, silent operation, and bounce-free switching for low-current load control. The TLP225A is now an end-of-life / obsolete device, and Pacific Component Xchange sources it for engineers maintaining legacy designs and production lines.

Key Features

Single-channel (1-Form-A) MOSFET output photorelay
Peak off-state output voltage: 60 V
On-state current: 0.5 A (max)
On-state resistance: 1.1 Ω (max, at I_F = 10 mA, I_ON = 0.5 A DC)
Trigger LED current: 5 mA (max)
Isolation voltage: 2500 Vrms (minimum, 1 minute)
4-pin plastic DIP (DIP4) package
Operating temperature range: -20 °C to +85 °C
UL 1577 / cUL recognized
Toshiba-suggested successor: TLP240A (package and characteristics are almost the same)

Applications

Programmable logic controllers (PLCs) and I/O interface boards
DC output modules
Sensor and instrumentation signal switching
Measurement and test equipment
Telecom and data acquisition systems

Why Source TLP225A from Pacific Component Xchange

The TLP225A has reached end-of-life status with little to no authorized-distributor stock remaining, making it a genuinely hard-to-find part. Pacific Component Xchange specializes in obsolete and end-of-life power-management ICs and optocouplers, helping OEMs and contract manufacturers keep legacy boards in production without costly redesigns. Every unit is inspected for authenticity and traceability, and we ship globally to support your maintenance, repair, and last-time-buy programs. Request a quote (RFQ) for the TLP225A today and our sourcing team will respond with current availability, lead time, and pricing.

Additional Information

Manufacturer	Toshiba Semiconductor and Storage
Component Type	MOSFET-Output Photorelay (Solid State Relay)
Channels	1 (1-Form-A, normally open)
Output Type	Photo-MOSFET
Peak Off-State Voltage	60 V
On-State Current	0.5 A (max)
On-State Resistance	1.1 Ω (max)
Trigger LED Current	5 mA (max)
Isolation Voltage	2500 Vrms (min, 1 min)
Operating Temperature	-20 °C to +85 °C
Package	DIP4 (4-pin plastic DIP)
Safety Approvals	UL 1577 / cUL
Part Status	Obsolete / End-of-Life
Availability	Available