TLP628(GB,F) – Optocoupler – Toshiba

About this part

The Toshiba TLP628(GB,F) is a single-channel photocoupler that optically couples a gallium-arsenide (GaAs) infrared emitting diode to a high-voltage NPN silicon phototransistor. The “GB” designation identifies the current-transfer-ratio (CTR) rank, while the “F” suffix denotes the lead-formed (gull-wing) surface-mount variant. With a 350 V minimum collector-emitter breakdown voltage and 5000 Vrms isolation, the TLP628 is well suited to high-voltage signal isolation and feedback applications. Toshiba lists the TLP628 series as Not Recommended for New Design (NRND).

Key Features

• Single-channel transistor-output optocoupler (GaAs IRED + phototransistor)
• Collector-emitter breakdown voltage: 350 V (min.)
• Current transfer ratio (CTR), GB rank: 50% to 600% (IF = 5 mA, VCE = 5 V)
• Isolation voltage: 5000 Vrms (min.), AC 1 minute
• UL recognized: UL1577, file No. E67349
• 4-pin PDIP package, “F” gull-wing lead form for surface mounting

Applications

• AC/DC line and signal isolation
• Switching-power-supply feedback loops
• Programmable controllers and industrial I/O
• Telecommunications and modem interfaces
• Measurement instrumentation and system isolation

Why Source TLP628(GB,F) from Pacific Component Xchange

As an NRND part, the TLP628(GB,F) can be difficult to obtain through authorized channels, with limited stock and intermittent availability. Pacific Component Xchange specializes in sourcing hard-to-find and end-of-availability optocouplers and power-management ICs. Our global supplier network, authenticity verification, and worldwide shipping help you secure genuine Toshiba parts on demand. Submit an RFQ today for current pricing, lead times, and inventory on the TLP628(GB,F).