Toshiba Semiconductor and Storage Electronic Parts
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The Toshiba TLP187(V4-TPR,E(T is a single-channel photocoupler that pairs an infrared LED with a photodarlington transistor output, delivering a high current transfer ratio in a compact 4-pin SO6 surface-mount package. The “V4” designation indicates a widened lead-form (gull-wing) variant, while “TPR,E(T” denotes the embossed tape-and-reel packing option. With an isolation rating of 3750 Vrms, the TLP187 is well suited to interface and signal-isolation circuits requiring robust galvanic separation. This part is listed as obsolete by authorized distribution, making independent sourcing the practical path for repair, maintenance, and legacy production runs.
As an independent distributor specializing in power-management ICs and optocouplers, Pacific Component Xchange helps engineers and procurement teams locate hard-to-find and obsolete components like the TLP187(V4-TPR,E(T that no longer carry authorized-distributor availability. Every device we supply is sourced with authenticity and traceability in mind, and we ship globally to support production lines, field service, and end-of-life builds. Because this is a Request-For-Quote item, submit an RFQ today for current stock, lead time, and pricing tailored to your quantity and delivery requirements.
The Toshiba part number is TLP187(V4-TPR,E(T. 'V4' is the widened lead-form variant and 'TPR,E' indicates the embossed tape-and-reel packing option, with the trailing (T denoting the reel quantity packing.
It is a single-channel photocoupler (optocoupler) consisting of an infrared LED optically coupled to a photodarlington transistor output, with DC input, housed in a 4-pin SO6 surface-mount package.
The TLP187 provides a minimum isolation voltage of 3750 Vrms for 1 minute, and it carries UL 1577, cUL, and VDE (EN 60747-5-5) safety approvals.
The TLP187 offers a high current transfer ratio of 1000% minimum, specified at a forward current (IF) of 1 mA and a collector-emitter voltage (VCE) of 1 V.
No. Authorized distribution lists this part as obsolete with little to no availability. Pacific Component Xchange sources it as a hard-to-find part. Submit an RFQ for current stock and lead time.
The TLP187 operates over a wide temperature range of -55 C to 110 C, suitable for industrial and demanding environments.
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