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Coin Linear Vibration Motors (LRA’s) |
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Due to their fast Rise and Fall times, linear resonant actuators (LRA) vibration motors are an excellent choice for haptic / tactile feedback applications such as wearables and medical devices such a 250 hz vibrating gloves for Parkinson’s disease. Their simple internal construction offers high reliability and exceptionally long life when compared with brush type ERM coin vibration motors. It should be noted that LRA’s can not survive the high temperatures of a reflow oven and hence we do not offer a SMD reflow version. HERE to see a cross section of a typical LRA and HERE for a comparison of LRA’s vs. Brush Type Motors. LRA’s are unique in that they can be driven at very low voltage levels ( ~ 0.1 Vac ) with a current as low as 12 ma, allowing engineers to tailor the vibration level to the minimum required, thus extending the devices battery life. Usability studies should to be conducted to determine the minimum acceptable level of vibration G force for the application, and then the Haptic Driver IC programmed accordingly. |
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Part Number  |
Old P/N (see PCN) | Image  |
Tech. Type |
Config. Type | Motor Size (mm) | Voltage | Current (mA) |
Response Time (ms) - 50% of power - w/o Haptic Driver |
Res. Freq (hz) |
Vibe Force (Grms) | CLICK to BUY from  |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia | Thick | Rated | Operating | Rated MAX |
Typical* Avg. |
Rise Time | Fall Time | ||||||||
| VG0640001D | G0640001D |
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LRA | 4 | 6.0 | 4.05 | 1.8 Vac | 0.5~1.8 Vac | 75 | 58 | 15 | 70 | 210 | 0.90 |
 QTY IN STOCK: 748 |
| VG0640002D |
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LRA | 3 | 6.0 | 4.05 | 1.8 Vac | 0.5~1.8 Vac | 75 | 58 | 15 | 70 | 210 | 0.90 |
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| VG0825001U |
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LRA | 1 | 8.0 | 2.55 | 1.2 Vac | 0.1~1.25 Vac | 80 | 66 | 50 | 80 | 240 | 0.70 |
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| VG0832008 | G0832008 |
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LRA | 4 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
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| VG0832009L |
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LRA | 2 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
QTY IN STOCK: 1,523 |
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| VG0832012 | G0832012 |
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LRA | 1 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
QTY IN STOCK: 287 |
| VG0832013D | G0832013D |
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LRA | 1 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
QTY IN STOCK: 0 |
| VG0832014L | G0832014L |
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LRA | 8 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
QTY IN STOCK: 1,895 |
| VG0832022D | G0832022D |
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LRA | 1 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
QTY IN STOCK: 0 |
| VG0840001D | G0840001D |
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LRA | 1 | 8.0 | 4.05 | 2.0 Vac | 0.1~2.0 Vac | 90 | 68 | 12 | 55 | 170 | 1.00 |
QTY IN STOCK: 1,205 |
VG1030001XH 
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LRA | 1 | 10.0 | 3.0 | 2.0 Vac | 0.1~2.1 Vac | 135 | 100 | 50 | 100 | 210 | 1.50 |
QTY IN STOCK: 538 |
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| VG1040003D | G1040003D |
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LRA | 3 | 10.0 | 4.0 | 2.5 Vac | 0.1~2.5 Vac | 170 | 145 | 10 | 50 | 170 | 1.50 |
QTY IN STOCK: 6,527 |
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VG2080001-175H
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LRA | 4 | 20.0 | 8.0 | 1.8 Vac | 1.0~2.0 Vac | 150 | 115 | 50 | 50 | 175 | 3.20 |
QTY IN STOCK: 960 |
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| VG2080001H |
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LRA | 4 | 20.0 | 8.0 | 1.8 Vac | 1.0~2.0 Vac | 200 | 80 | 20 | 60 | 130 | >1.80 |
QTY IN STOCK: 1,798 |
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VG2230001H
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LRA | 22.0 | 30.0 | 2.0 Vac | 0.1~3.0 Vac | 100 | 95 | 60 | 100 | 70 | >3.50 |
QTY IN STOCK: 229 |
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| Part Number | Old P/N (see PCN) | Image | Tech. Type | Config. Type | Dia (mm) | Thick (mm) | Rated (V) | Operating (V) | Rated MAX (mA) | Typical* (mA) | Rise Time (ms) | Fall Time (ms) | Res. Freq (hz) | Vibe Force (Grms) | BUY SAMPLES HERE |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VG0640001D | G0640001D |
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LRA | 4 | 6.0 | 4.05 | 1.8 Vac | 0.5~1.8 Vac | 75 | 58 | 15 | 70 | 210 | 0.90 |
STOCK: 748 |
| VG0640002D |
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LRA | 3 | 6.0 | 4.05 | 1.8 Vac | 0.5~1.8 Vac | 75 | 58 | 15 | 70 | 210 | 0.90 |
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| VG0825001U |
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LRA | 1 | 8.0 | 2.55 | 1.2 Vac | 0.1~1.25 Vac | 80 | 66 | 50 | 80 | 240 | 0.70 |
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| VG0832008 | G0832008 |
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LRA | 4 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
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| VG0832009L |
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LRA | 2 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
STOCK: 1,523 |
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| VG0832012 | G0832012 |
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LRA | 1 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
STOCK: 287 |
| VG0832013D | G0832013D |
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LRA | 1 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
STOCK: 0 |
| VG0832014L | G0832014L |
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LRA | 8 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
STOCK: 1,895 |
| VG0832022D | G0832022D |
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LRA | 1 | 8.0 | 3.25 | 1.8 Vac | 0.1~1.85 Vac | 80 | 58 | 50 | 80 | 235 | 1.00 |
STOCK: 0 |
| VG0840001D | G0840001D |
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LRA | 1 | 8.0 | 4.05 | 2.0 Vac | 0.1~2.0 Vac | 90 | 68 | 12 | 55 | 170 | 1.00 |
STOCK: 1,205 |
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VG1030001XH
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LRA | 1 | 10.0 | 3.0 | 2.0 Vac | 0.1~2.1 Vac | 135 | 100 | 50 | 100 | 210 | 1.50 |
STOCK: 538 |
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| VG1040003D | G1040003D |
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LRA | 3 | 10.0 | 4.0 | 2.5 Vac | 0.1~2.5 Vac | 170 | 145 | 10 | 50 | 170 | 1.50 |
STOCK: 6,527 |
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VG2080001-175H
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LRA | 4 | 20.0 | 8.0 | 1.8 Vac | 1.0~2.0 Vac | 150 | 115 | 50 | 50 | 175 | 3.20 |
STOCK: 960 |
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| VG2080001H |
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LRA | 4 | 20.0 | 8.0 | 1.8 Vac | 1.0~2.0 Vac | 200 | 80 | 20 | 60 | 130 | >1.80 |
STOCK: 1,798 |
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VG2230001H
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LRA | 22.0 | 30.0 | 2.0 Vac | 0.1~3.0 Vac | 100 | 95 | 60 | 100 | 70 | >3.50 |
STOCK: 229 |
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Our coin shaped linear resonant actuators oscillate along the Z axis, perpendicular to the motors surface. This Z axis vibration efficiently transmits vibrations in wearable applications. In Hi-Rel applications, they are a viable alternative to brushless vibration motors as the only internal parts that are subjected to wear / failure are the springs. |
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The “typical current” is the average current from 20 motors selected at random from a given production lot. Copies of the test report showing the data collected for all 20 motors are available upon request. |
NOTES:
- Custom wire length are available for MOQ: 2K pcs
- We can add connectors for MOQ: 2K pcs
- Custom FPC’s are available for MOQ: 5K pcs.
- Tooling and design fees will apply for custom FPC’s
Unlike conventional brush type DC vibration motors, linear resonant actuators must be driven by an AC signal at the LRA’s resonant frequency. They can not be driven directly from a DC voltage source. The wire leads are typically different colors however the wires do not have polarity as the drive signal is AC , and not DC.
A number of companies make Haptic IC drivers that are compatible with our linear vibration motors.
Renesas (formerly Dialog Semiconductor) makes a full line of Haptic Drivers as well as an evaluation board that incorporates their popular DA728x Series Haptic driver IC which may be purchased here. Configuration files are available for our most popular LRAs. These files will aid engineers in quickly setting up the DA728x series for optimal performance.
Texas Instruments makes the DRV26xxx series of Haptic Driver and supplies an evaluation board that incorporates the TI DRV2605L haptic driver IC. An alternate version that can drive up to 8 LRA’s is here.
Hapticlabs also makes a unique “No Coding” development toolkit that will aid engineers in developing haptic interactions.
Unlike brush type ERM vibration motors, changing the amplitude of the drive voltage will only change the amplitude of the G force, not the frequency of vibration. Because of the LRA’s narrow band width / High-Q, applying a frequency above or below the resonant frequency of the LRA will result in the LRA producing a lower vibration amplitude or if far from the resonant frequency, none at all. Please note we also offer wide band LRA’s as well as LRA’s that operate on multiple resonant frequencies.
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