Mouser Electronics White Paper
Figure 10: Conceptual comparison of standard haptic feedback devices. (Source: TDK)
Table 4: Summary of performance metrics comparing ERM actuators with PiezoHapt actuators (Source: TDK; *Measurement by TDK)
Metric Piezo Actuators LRAs ERMs
Frequency Range
50Hz–100+kHz 150–300Hz 120–200Hz
Latency
<1ms ~10–20ms ~50–100ms
Power Consumption
Low (efficient) Medium High (inefficient)
Amplitude
High (precise) Moderate Low
Form Factor
Small, lightweight Medium Large, bulky
