Toshiba Electronic Devices & Storage Corporation Electronic Parts
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The Toshiba TLP291(UG-TPR,SE) is a single-channel (1-element) transistor-output photocoupler consisting of a gallium-arsenide (GaAs) infrared emitting diode optically coupled to a silicon phototransistor. Housed in Toshiba’s very small and thin SO4 (SOP-4) surface-mount package, it is engineered for high-density mounting in isolated signal and power-management applications. The device carries comprehensive global safety approvals.
With a guaranteed wide operating temperature range of -55 C to 110 C and a high isolation voltage of 3750 Vrms, the TLP291 family is well suited to small switching power supplies, programmable controllers, and hybrid ICs.
This specific TLP291 ordering option can be difficult to locate through standard authorized-distributor channels. As an independent distributor specializing in hard-to-find power-management ICs and optocouplers, Pacific Component Xchange helps engineers and buyers secure TLP291(UG-TPR,SE) when standard channels come up empty. Every device is inspected for authenticity and traceability, and we ship globally to keep your production lines and service builds running. Request a quote (RFQ) today for current availability, lead time, and pricing on TLP291(UG-TPR,SE) and other Toshiba photocouplers.
It is a Toshiba single-channel phototransistor-output optocoupler (photocoupler) in a compact SO4 (SOP-4) surface-mount package. It pairs a GaAs infrared LED with a silicon phototransistor to provide 3750 Vrms electrical isolation between input and output.
The TLP291 provides a minimum isolation voltage (BVS) of 3750 Vrms, tested at AC for 60 seconds, with a minimum creepage and clearance of 5.0 mm and 0.4 mm minimum insulation thickness.
The standard TLP291 has a CTR of 50% minimum with a 50-400% range at IF = 5 mA, VCE = 5 V. Rank GB versions are specified at 100% minimum. Published CTR ranks for the family include Y, GR, GB, YH, GRL, GRH, and BLL.
The TLP291 family shows mixed lifecycle status across distributors, with some ordering options listed as Active and others as Not Recommended for New Design (NRND). Confirm the current status for this specific ordering code via RFQ. Pacific Component Xchange sources it for repair, maintenance, and legacy production needs.
It uses Toshiba's SO4 (SOP-4) package, a very small and thin 4-pin surface-mount body weighing about 0.05 g, designed for high-density SMT assembly. Pin 1 is the anode, pin 2 the cathode, pin 3 the emitter, and pin 4 the collector.
Because this is a hard-to-find ordering option, pricing is provided by request. Submit an RFQ to Pacific Component Xchange for current availability, lead time, and a quote, with authenticity inspection and global shipping included.
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