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M54123B Datasheet Earth Leakage Current Detector

Manufacturer: Unisonic Technologies

Overview: UNISONIC TECHNOLOGIES CO., LTD M54123B Advance EARTH LEAKAGE CURRENT DETECTOR LINEAR INTEGRATED CIRCUIT.

General Description

The UTC M54123B is a semiconductor integrated circuit with amplifier for a high-speed earth leakage circuit breaker.

For the amplifying parts of earth leakage circuit breaker, the UTC M54123B consists of differential amplifier, latch circuit and voltage regulator.

In normal operating, the UTC M54123B should be connected to the secondary side of the ZCT (zero current transformers).

Key Features

  • With good input sensitivity current temperature characteristics.
  • High input sensitivity : VT=6.1mV (Typ. ).
  • Only need low external component count.
  • High noise and surge-proof.
  • Low power dissipation : PD=5mW (Typ. ).
  • May be used both as 100V and 200V.
  • Wide temperature range : from -20°C to +80°C.

M54123B Distributor

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