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).