TLP291(UG-TPR,SE) – Optocoupler – Toshiba

The Toshiba TLP291(UG-TPR,SE) is a single-channel phototransistor-output optocoupler in a compact SO4 (SOP-4) surface-mount package, featuring 3750 Vrms isolation and a wide -55 to 110 C operating range. Available for RFQ at Pacific Component Xchange.

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.

Key Features

• Single-channel (1-element) phototransistor-output optocoupler
• Current Transfer Ratio (CTR): 50% min, 50-400% range (Rank GB: 100% min)
• Isolation voltage (BVS): 3750 Vrms (min), AC 60 s
• Collector-emitter voltage (VCEO): 80 V (min)
• Input forward current (IF): 50 mA (max); collector current (IC): 50 mA (max)
• Input forward voltage (VF): 1.25 V typ (1.1-1.4 V) at IF = 10 mA
• Wide operating temperature: -55 C to 110 C
• Creepage / clearance: 5.0 mm min; insulation thickness 0.4 mm min
• Compact SO4 (SOP-4) surface-mount package; weight 0.05 g typ
• Safety approvals: UL1577 (File No. E67349), cUL/CSA (File No. 67349), VDE (EN 60747-5-5, EN 62368-1, Option V4), CQC (GB4943.1, GB8898)

Applications

• Small switching power supplies and AC/DC adapters
• Programmable logic controllers (PLCs) and industrial automation
• Hybrid ICs and isolated feedback circuits
• Signal-level isolation in instrumentation and control boards
• Home appliances and consumer power electronics

Why Source TLP291(UG-TPR,SE) from Pacific Component Xchange

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.