Toshiba Electronic Parts
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The Toshiba TLP785(D4-BLL,F(C) is a single-channel transistor-output photocoupler consisting of an infrared light-emitting diode optically coupled to a silicon phototransistor. It belongs to the TLP785 family and is supplied in the lead-forming DIP4 configuration, with leads formed for long creepage distance. The “BL” designation identifies the BL current-transfer-ratio rank (200% to 600%), and the trailing “(D4-…,F(C)” code reflects Toshiba’s lead-form, tape and packing/shipping configuration.
The TLP785(D4-BLL,F(C) is an allocation-sensitive part with limited authorized-distributor stock. Pacific Component Xchange specializes in sourcing hard-to-find and obsolete optocouplers and power-management components like this Toshiba photocoupler. As an independent distributor, we leverage a global supplier network to locate authentic devices, support specific CTR-rank requirements, and provide authenticity verification on every order. Submit an RFQ today for current availability, lead time, and pricing, and our sourcing team will respond with options for this and related TLP785 rank variants. We ship worldwide to support your production and prototype needs.
The orderable part number is Toshiba TLP785 in the D4-BLL lead-form/CTR-rank and F(C) tape/packing configuration, commonly written TLP785(D4-BLL,F(C). The core device is a TLP785-family transistor-output photocoupler at the BL CTR rank.
Toshiba bins the TLP785 family by current transfer ratio (CTR). The BL rank specifies a CTR of 200% to 600% (at IF = 5 mA, VCE = 5 V). Other ranks include Y (50% to 150%) and GB (100% min).
The lead-form version has its leads formed for long creepage distance, while the standard TLP785 has straight DIP4 leads. Electrical characteristics are otherwise equivalent. Confirm the exact mounting style (through-hole versus formed) for your footprint when ordering.
The TLP785 family provides a minimum isolation voltage of 5000 Vrms and carries UL 1577, VDE (EN 60747-5-5), and CQC safety approvals per Toshiba documentation.
This is a Request-for-Quote item with limited authorized-distributor availability. Pacific Component Xchange sources it through a global supplier network. Submit an RFQ for current availability, lead time, and pricing.
It is used for signal and feedback isolation in switching power supplies, PLC and industrial I/O, office equipment, home appliances, and telecom line interfaces.
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