Toshiba Electronic Devices & Storage Corporation Electronic Parts
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The Toshiba TLP548J is a photocoupler with a photothyristor (SCR) output, combining a gallium-arsenide (GaAs) infrared emitting diode optically coupled to a light-activated thyristor. It is designed to switch AC and DC loads with full galvanic isolation between the low-voltage control side and the higher-voltage load side, making it well suited to solid-state relay, switching power supply, and equipment-control applications. The device is supplied in an industry-standard 6-pin DIP package.
The TLP548J has reached end-of-life and has little to no availability through authorized distributors, making it a classic hard-to-find legacy optocoupler. Pacific Component Xchange specializes in sourcing obsolete and allocated power-management ICs and optocouplers like the TLP548J for repair, maintenance, and legacy-production needs. We focus on authenticity and traceability, and we ship globally to keep your lines running.
Because this is a Request-For-Quote item, pricing and lead time are confirmed per request. Contact Pacific Component Xchange today to submit an RFQ for the TLP548J and let our team locate verified inventory for your build. If your design is new rather than a legacy repair, ask us about Toshiba’s current-generation photocoupler alternatives as well.
The TLP548J is a Toshiba photocoupler with a photothyristor (photo-SCR) output. It uses a GaAs infrared emitting diode optically coupled to a light-activated thyristor, providing isolated switching for AC/DC loads in a 6-pin DIP package.
The TLP548J has a peak off-state voltage (VDRM) of 600 V and an isolation voltage of 2500 Vrms for 1 minute. It is UL 1577 recognized.
The TLP548J is supplied in a single-channel 6-pin DIP (DIP6) package. The common orderable variant is TLP548J(TP1,F).
No. The TLP548J has reached end-of-life and is obsolete, with little to no availability through authorized distributors. It is typically sourced for legacy repair and maintenance through independent distributors like Pacific Component Xchange.
It is used in solid-state relays, switching power supplies, office machines, household equipment, and factory-automation equipment that require isolated AC/DC load switching.
Pacific Component Xchange sources hard-to-find and obsolete optocouplers like the TLP548J. Submit a Request for Quote and our team will locate verified, trusted and guaranteed inventory and provide pricing and lead time.
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