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Haptics

Resonant Actuators are used to generate tactile feedback and enable rich user experiences for many types of haptic applications. These non-rotating vibration devices are able to provide stable frequency, faster response and less power consumption than rotating vibration motors. These features, combined with advanced driver controls, make our resonant actuators best suited for smartphones, wearables, gaming, automotive and appliances. NMB offers a variety of devices for haptics feedback including Linear Resonant Actuators (LRA) and Direct Drive Actuators (DDA).

Features:

  • Enriched tactile expression
  • Smooth vibration
  • Quick response
  • High volume production

Applications:

  • Mobile phones
  • Car navigation
  • Driver feedback
  • Gaming
  • Home appliances

Our Linear Resonant Actuator (LRA) products have a unique spring and damping structure to suppress high-order resonance and achieve wideband and clear vibration. The compact size is ideal for creating realistic tactile sensations in mobile and gaming equipment. Since they don’t use motors, they are also very low-noise devices.

Reference Specifications

Specifications

LVC25L-CS02

Dimensions [mm]

Φ25 × 10.8

Weight [g]

19.2

Input Voltage [Vrms]

6.0 (Sine wave)

Power Consumption [mW]

300 or less

LRA Series Product Line-up

Part Number

Diameter
[mm]

Height
[mm]

Width
[mm]

Depth
[mm]

LVC10D

Φ10

10

LVC20DK

Φ20

11

LVC20DK

Φ20

24

LVC25L

Φ25

10.8

USZ-LRA1

3.5

4

12

USZ-LRA3

3.5

4

12

USZ-LRA4

2.8

6

12

USZ-LRA4X

5

8

12

DDA Series

MinebeaMitsumi has designed a first of its kind Direct Drive Actuator (DDA) that employs a simple solenoid structure which has been flattened to fit behind an automotive user interface. The patented structure creates z-axis motion that provides a robust haptics expression while maintaining simple electrical operation.

Reference Specifications

Specifications

DDA Concept

Body Dimensions [mm]

110 × 85 × 10
*VESA mount 75 supported

Weight [g]

210

Max. Input Voltage [V]

12

Terminal Resistance [Ω]

5.8

Response Time [msec]

8 or less

Ma× Displacement [mm]
(from 0 to 0.1mm, Pulse input)

0.5

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