TLP127(TPL,U,F) – Optocoupler – Toshiba

The Toshiba TLP127(TPL,U,F) is a single-channel Darlington-transistor-output optocoupler in a surface-mount SO6 (MFSOP6) mini-flat package, offering 300V collector-emitter voltage, 1000% minimum current transfer ratio, and 2500Vrms isolation.

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.

Key Features

• Single-channel (1-ch) optocoupler with Darlington photo-transistor output and integral base-emitter resistor
• Collector-emitter voltage (V_CEO): 300 V (min.)
• Current transfer ratio (CTR): 1000% (min.), at I_F = 1 mA, V_CE = 1 V
• Isolation voltage (BV_S): 2500 Vrms (min., AC, 60 s)
• Maximum collector current (I_C): 150 mA
• Operating temperature range: -55°C to +100°C
• Surface-mount SO6 (MFSOP6) mini-flat package for high-density assembly
• UL recognized (UL1577, file no. E67349); cUL recognized; VDE-approved (V4 option type)

Applications

• Programmable logic controller (PLC) DC-output modules
• AC/DC line input/output signal isolation
• Telecommunication and industrial equipment
• Microprocessor / system input-output interface isolation
• Relay and solenoid driver isolation

Why Source TLP127(TPL,U,F) from Pacific Component Xchange

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.