Sanyo Denki San Ace PWM Controller

The Sanyo Denki San Ace PWM Controller provides simple and flexible speed control for San Ace PWM fans without requiring a newly designed PWM control circuit. It can control up to four PWM fans and can be powered directly from 12 VDC, 24 VDC, or 48 VDC fan power supplies.

Available in box-type and PCB-type configurations, the controller supports voltage control, variable-resistor control, and thermistor-based automatic control, depending on the model. PWM output is selectable between 3.3 V and 5 V, with a 25 kHz PWM frequency.