Toshiba Electronic Devices & Storage Corporation Electronic Parts
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The Toshiba TLP3905 is a single-channel photovoltaic-output photocoupler that combines an infrared LED optically coupled to a photodiode array. When the input LED is energized, the photodiode array generates an isolated DC voltage at the output, making the TLP3905 ideal for directly driving the gate of an external power MOSFET or IGBT without a separate bias supply. It delivers a minimum open-circuit output voltage (VOC) of 7 V and a minimum short-circuit output current (ISC) of 12 µA (both at IF = 10 mA), with a 3750 Vrms isolation rating, all housed in a compact 4-pin SO6 surface-mount package.
The TLP3905 is a specialized photovoltaic-output photocoupler with limited authorized-distributor availability, which can stall production for designers who depend on it for isolated gate-drive stages. Pacific Component Xchange is an independent distributor focused on hard-to-find and obsolete power-management ICs and optocouplers. We help engineers and buyers secure scarce Toshiba isolation devices like the TLP3905 when mainstream channels show no stock.
Every part we supply is backed by authenticity verification and inspection processes designed to keep counterfeit components out of your supply chain. With global shipping and responsive quoting, we can support both prototype quantities and volume production. Request a quote (RFQ) for the TLP3905 today and our sourcing team will confirm availability, lead time, and pricing for your requirement.
The clean orderable base part number is TLP3905. The 'TPR' suffix designates Toshiba's tape-and-reel packaging option and 'E' indicates a RoHS-compatible variant (orderable as TLP3905(TPR,E). The garbled trailing '(T' fragment is a truncated packaging note and is not part of the orderable code.
It is a single-channel photovoltaic-output photocoupler. An internal infrared LED illuminates a photodiode array that generates an isolated DC output voltage, allowing it to drive a MOSFET or IGBT gate directly without an external bias supply.
The TLP3905 provides an isolation voltage of 3750 Vrms, tested for 1 minute, and is approved under UL 1577, cUL, EN 60747-5-5, and EN IEC 62368-1.
At an LED forward current of 10 mA, the device delivers a minimum open-circuit output voltage (VOC) of 7 V and a minimum short-circuit output current (ISC) of 12 uA.
It is supplied in a 4-pin SO6 surface-mount package measuring approximately 3.7 x 7.0 x 2.1 mm, delivered in tape-and-reel form for the TPR option.
Yes. Pacific Component Xchange specializes in hard-to-find power-management and optocoupler devices. Even when authorized distributors list no inventory, we can often source the TLP3905. Submit an RFQ and our team will confirm availability, lead time, and pricing.
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