These range from the use of thermistors, to Hall effect sensors, to Chip-On-Board (COB) thermal controller devices. The fans are available for volume requirements in sizes from 40 x 40 x 15 mm up to 120 x120 x 38 mm. Units come with a linear ramp control, featuring two temperature set points (no limit). An optional switch function also provides programmable temperature-based control for turn-on/turn-off (such as turning off when temperature falls to 35°C, etc.).

The line is also available with the following options: Delay Start - enables fans to be hot-swapped or changed without powering down the system. Ramp Start - prevents inrush currents, placing less stress on circuits. Current Limitation and Fan Speed Limitation - fan runs at constant speed while operating at higher-than-rated voltage. Fan Performance Sensor (FPS) - provides preset RPM threshold, delay, non-latching and latching functions to determine fan failures. Pulse Width Modulation (PWM) - Controls fan speed by switching the power on and off very rapidly.
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