LED driver transformer wholesale. POT23 5+5 pins vertical bobbin. Bobbin Size=23.5mmX22.0mmX16.5mm. Parallel Distance=20.5mm. Pin pitch=3.8mm. DIP transformer bobbin. We are professional transformer bobbin factory, our bobbins are widely used in high frequency line filters, smoothing choke coil, drive transformer, switching power transformers and chokes