Toshiba Electronic Devices & Storage Corporation Electronic Parts
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The Toshiba TLP127(TPL,U,F) is a single-channel photocoupler that pairs a GaAs infrared emitting diode with an optically coupled Darlington photo-transistor incorporating an integral base-emitter resistor. This Darlington configuration delivers a high current transfer ratio of 1000% (minimum), enabling small input drive currents to switch meaningful output loads while maintaining 2500Vrms galvanic isolation between input and output. Supplied in a compact surface-mount SO6 (MFSOP6) mini-flat package, the TLP127 is well suited to space-constrained, high-density board designs. The “(TPL,U,F)” suffix denotes Toshiba’s tape-and-reel surface-mount ordering option.
The TLP127(TPL,U,F) is an older, end-of-life Darlington optocoupler with limited authorized-distributor stock, making it a hard-to-find part for production and maintenance buyers. Pacific Component Xchange specializes in sourcing scarce, hard-to-find, and obsolete optocouplers and power-management components. Every Toshiba TLP127(TPL,U,F) we supply is sourced through vetted channels with authenticity and traceability front of mind, and we ship globally to support both prototype and volume requirements. If you need this Darlington optocoupler on a tight timeline or in quantities mainstream catalogs cannot cover, submit an RFQ (Request for Quote) and our sourcing team will respond with current availability, lead time, and pricing.
The correct Toshiba ordering code is TLP127(TPL,U,F). The garbled source text used periods in place of commas; 'TPL' indicates the tape-and-reel surface-mount packaging option for the SO6 device. The base device is the TLP127.
The TLP127 is a single-channel (1-channel) optocoupler with a Darlington photo-transistor output and an integral base-emitter resistor.
The TLP127 provides a minimum isolation voltage of 2500 Vrms (AC, 60 s) and a minimum current transfer ratio (CTR) of 1000% at IF = 1 mA, VCE = 1 V, with a 300 V minimum collector-emitter voltage.
It is supplied in a surface-mount SO6 (MFSOP6) mini-flat package (Toshiba outline 11-4C1) suitable for high-density, automated surface-mount assembly.
The TLP127 is an older device whose commercial production began in 1988, and authorized-distributor listings indicate the part is now obsolete/end-of-life with limited stock. Pacific Component Xchange specializes in hard-to-find and obsolete optocouplers and can source it through vetted channels. Submit an RFQ for current availability, lead time, and pricing.
Typical uses include PLC DC-output modules, telecommunication equipment, AC/DC signal isolation, and microprocessor input/output interface isolation, where its high CTR allows small drive currents to switch larger output loads.
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