Toshiba Electronic Devices & Storage Corporation Electronic Parts
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The Toshiba TLP184(V4-GB,TR.E) is a single-channel AC-input photocoupler that pairs two inverse-parallel-connected GaAs infrared emitting diodes with a silicon phototransistor, allowing the device to be driven directly from an AC input current. Housed in a compact surface-mount 4-pin SO6 package, it is widely used for line-voltage sensing, AC/DC input modules, and isolated signal transfer where galvanic isolation is required. The “V4” prefix designates the EN 60747-5-5 (VDE) approved reinforced-isolation option, and the “GB” rank specifies a tightened current transfer ratio of 100% minimum. The “TR” suffix indicates tape-and-reel packaging.
The TLP184 family is marked Not Recommended for New Design (NRND) by Toshiba, with the TLP184(SE) listed as the suggested follow-on, and several variants now have limited or no authorized-distributor stock. Pacific Component Xchange specializes in locating hard-to-find, NRND, and end-of-life optocouplers and isolation components like the TLP184(V4-GB,TR.E). Every part we supply is sourced through vetted channels with authenticity verification and inspection, backed by global shipping and responsive support for production and maintenance buys. Because this is a request-for-quote item with constrained availability, contact Pacific Component Xchange for a fast RFQ on current pricing, lead time, date codes, and quantity — we can help you secure the exact rank and packaging option your build requires or qualify an equivalent.
TLP184 is the base Toshiba AC-input phototransistor photocoupler. 'V4' designates the EN 60747-5-5 (VDE) reinforced-isolation approved option, 'GB' is the current transfer ratio rank (100% minimum), and the 'TR' suffix indicates tape-and-reel packaging. Note that the original listing string is non-standard; Toshiba's catalog typically uses 'TPR' for tape-and-reel, so confirm the exact orderable code on RFQ.
Toshiba lists the TLP184 family as Not Recommended for New Design (NRND), and some specific variants are already obsolete with little or no authorized-distributor stock. Toshiba's suggested follow-on is the TLP184(SE). Pacific Component Xchange can source the original TLP184(V4-GB,TR.E) on an RFQ basis.
The TLP184 provides an isolation voltage of 3750 Vrms for 1 minute, and the V4 option carries EN 60747-5-5 (VDE) reinforced-isolation approval.
It is supplied in a surface-mount 4-pin SO6 package (a 6-SOIC outline with 4 leads), measuring approximately 3.7 x 7.0 x 2.1 mm, delivered in tape-and-reel per the TR suffix.
The TLP184 has an overall current transfer ratio range of 50% to 400%. The GB rank narrows this to a minimum CTR of 100% (measured at IF = u00b15 mA, VCE = 5 V), giving tighter, higher-gain transfer characteristics.
The input stage uses two infrared emitting diodes connected in inverse parallel, so the device responds to current of either polarity. This lets it operate directly from an AC input current, which is useful for AC line sensing and AC/DC input modules.
Because this is a request-for-quote (RFQ) item with limited availability, submit an RFQ to Pacific Component Xchange. We will provide current pricing, lead time, available date codes, and quantity options, and can help verify authenticity or qualify an equivalent if needed.
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