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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.
Structure parameters
ZMPT112
Current-type Voltage transformer
small size，high accuracy，good consistency，for voltage and power measurement
Structural parameters：
Wiring according to the drawings, homonymous ends diagonal, the input and output can be reversed
Front view Bottom view
The main technical parameters
Model | ZMPT112 |
Rated input current | 2mA |
Rated output current | 2mA |
turns ratio | 1000:1000 |
phase angle error | ≤45＇（input 2mA，sampling resistor 50Ω） |
linear range | 0~1000V 0~10mA（sampling resistor 50Ω） |
linearity | ≤0.2%（20%dot~120%dot） |
Permissible error | -0.6% ≤ f ≤0%（input 2mA，sampling resistance 50Ω） |
isolation voltage | 3000V |
application | current and power measurement |
Encapsulation | Epoxy |
installation | PCB mounting（Pin Length>3mm） |
operating temperature | -40℃~+85℃ |
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).
