TLP187(V4-TPR,E(T – Photocoupler (Photodarlington Output) – Toshiba

The Toshiba TLP187(V4-TPR,E(T is a single-channel photodarlington-output photocoupler in a 4-pin SO6 surface-mount package, offering 3750 Vrms isolation and a high 1000% (min) current transfer ratio. Available for RFQ as a hard-to-find/obsolete device.

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.

Key Features

• Output type: Photodarlington phototransistor (DC input)
• Number of channels: 1
• Isolation voltage: 3750 Vrms (min), 1 minute
• Collector-emitter voltage (V_CEO): 300 V (max rating)
• Current transfer ratio (CTR): 1000% (min) at I_F = 1 mA, V_CE = 1 V
• Operating temperature range: -55 C to 110 C
• Package: 4-pin SO6 surface mount (3.7 x 7.0 x 2.1 mm)
• Safety standards: UL 1577 / cUL / VDE (EN 60747-5-5) approvals

Applications

• Programmable logic controllers (PLCs)
• I/O interface boards
• Communication interface isolation
• Home and industrial electric appliances
• Signal isolation in high-voltage systems

Why Source TLP187(V4-TPR,E(T from Pacific Component Xchange

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.