ZMPT112miniature voltage transformer is designed for applications where AC voltage signals must be transformed accurately into a lower voltage signal appropriate for micro-processor based circuits. ZMPT112 current-type voltage transformer is a kind of mA current transformer, which turn ratio between primary and secondary is similar to 1:1. a limiting resistor is nessary to be in it with primary winding.ZMPT112 is popular to a limited internal space of devices.
Current-type Voltage transformer
small size，high accuracy，good consistency，for voltage and power measurement
Wiring according to the drawings, homonymous ends diagonal, the input and output can be reversed
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The main technical parameters
Rated input current
Rated output current
phase angle error
0~1000V 0~10mA（sampling resistor 50Ω）
-0.6% ≤ f ≤0%（input 2mA，sampling resistance 50Ω）
current and power measurement
PCB mounting（Pin Length>3mm）
Direction for use
Figure Ⅰ FigureⅡ
1. The typical usage of the product is for the active output ( FigureⅠ). R＇is a limiting resistor，R is a sampling resistor.
2. The product can be directly through the resistance sampling , easy to use ( FigureⅡ).