TLP385(D4BLL-TR,E) – Optocoupler – Toshiba

The Toshiba TLP385(D4BLL-TR,E) is a high-isolation transistor-output photocoupler in a thin 4-pin SO6L package, rated for 5000 Vrms isolation and an 80 V collector-emitter voltage, supplied in the BLL current-transfer-ratio rank (200% to 400%). Available for RFQ through Pacific Component Xchange.

The TLP385(D4BLL-TR,E) from Toshiba is a high-isolation transistor-output photocoupler (optocoupler) consisting of a gallium-arsenide infrared emitting diode optically coupled to a silicon NPN phototransistor. It is housed in a compact, low-profile 4-pin SO6L surface-mount package, which is significantly thinner than a conventional DIP package and well suited to high-density board layouts. The “D4” designation identifies the SO6L (VDE-approved option) package, “BLL” identifies the current-transfer-ratio (CTR) rank, and the “-TR,E” suffix denotes embossed tape-and-reel packaging.

Key Features

• Single-channel transistor-output photocoupler (IR LED to phototransistor)
• High isolation voltage: 5000 Vrms (min)
• Collector-emitter breakdown voltage: V(BR)CEO = 80 V (min)
• Current transfer ratio: device guaranteed 50% (min); BLL rank graded 200% to 400% (IF = 5 mA, VCE = 5 V)
• Compact, thin 4-pin SO6L surface-mount package
• Wide operating temperature range: -55°C to 110°C
• Embossed tape-and-reel (-TR) packaging for automated assembly
• UL 1577, cUL and VDE (EN 60747-5-5 / EN 62368-1) safety standard recognition

Applications

• Programmable logic controllers (PLCs)
• AC adapters and switching power supplies
• I/O interface boards
• Signal isolation in industrial and factory automation equipment

Why Source TLP385(D4BLL-TR,E) from Pacific Component Xchange

The TLP385(D4BLL-TR,E) is a specific CTR-ranked, tape-and-reel variant that frequently shows little or no stock through authorized distribution channels. Pacific Component Xchange specializes in sourcing hard-to-find and allocated optocouplers and power-management ICs for engineering and procurement teams worldwide. We focus on authenticity, traceability, and reliable global shipping so you can secure the exact rank and packaging code you need.

Because this is a Request-for-Quote item, pricing and lead time are confirmed per order based on current availability. Submit an RFQ today and our sourcing specialists will respond with verified stock, pricing, and delivery options for the TLP385(D4BLL-TR,E).