Toshiba Electronic Devices & Storage Corporation Electronic Parts
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The Toshiba TLP176G(V4-TPR.F) is a photorelay (solid-state relay) with a photo-MOSFET output, consisting of an infrared emitting diode (IRED) optically coupled to a high-voltage photo-MOSFET in a compact 4-pin SOP (2.54SOP4) surface-mount package. The device provides a normally-open 1-Form-A (SPST-NO) contact and is designed as a long-life, bounce-free replacement for mechanical relays. The V4 option designates the VDE-approved (EN 60747-5-5) variant, while TPR.F indicates embossed tape-and-reel packaging for automated assembly.
Originally developed for telecom line-side switching, the TLP176G’s high off-state voltage and low on-resistance made it a standard choice for hook relays and dial-pulse relays in modems, fax machines, and PBX equipment.
The TLP176G is an obsolete / end-of-life Toshiba photorelay with little to no authorized-distributor stock, making it difficult to procure through standard channels. Pacific Component Xchange specializes in hard-to-find and obsolete power-management ICs and optocouplers, helping engineers and buyers keep legacy designs in production. We provide authenticity verification on incoming inventory, flexible quantities, and worldwide shipping. If your design still requires the TLP176G(V4-TPR.F) – or you need a qualified cross to the recommended successor – request a quote (RFQ) today and our sourcing team will respond with current availability and lead time.
It is a Toshiba photorelay (solid-state relay) with a photo-MOSFET output, providing a 1-Form-A (SPST-NO) contact in a 4-pin SOP surface-mount package. The V4 suffix denotes the VDE-approved variant and TPR.F indicates tape-and-reel packaging.
The TLP176G is rated for a peak off-state output voltage of 350 V (min), on-state current of 120 mA (max), on-state resistance of 35 u03a9 (max), a trigger LED current of 3 mA (max), and an isolation voltage of 1500 Vrms (min, AC 60 s).
Per the Toshiba datasheet, the V4 option designates the VDE-approved version certified to EN 60747-5-5. TPR.F refers to embossed tape-and-reel packaging.
No. The TLP176G has reached end-of-life (EOL) status with little to no authorized-distributor availability; Toshiba lists the TLP172GM as a recommended successor. Pacific Component Xchange sources it on an RFQ basis for legacy and replacement needs.
It was widely used for hook and dial-pulse relays in modems and fax machines, PBX and telecom line interfaces, set-top boxes, and measurement equipment, as well as general mechanical-relay replacement.
Because this part is obsolete, submit a Request for Quote (RFQ) to Pacific Component Xchange. We will confirm current availability, lead time, and authenticity, and can suggest qualified alternatives if needed.
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