DHN / DHNF 1.6mm Half-Pitch Type DIP Switches Diptronics DHN / DHNF 1.6mm Half-Pitch Type DIP Switches are low profile and feature gold contacts for high reliability. These Diptronics DIP switches provide 25mA, 24VDC contact rating, and 1000 operating life cycles. DHN and DHNF switches are designed for industrial control, automatic machine control, and electronic device applications.