BY TOKIN
Multilayer stacked piezoelectric actuators by TOKIN
Specifications and prices
A multilayer piezoelectric actuator is a ceramic element that converts electrical energy into displacement or force using the longitudinal piezoelectric effect. These are resin coated and suit ultra fine positioning mechanisms and drive sources.
| Model | Capacitance (µF) | Resonance (kHz) | Insulation resistance (MΩ) | Generated force (N) | Cross section (mm) | Overall length (mm) | Displacement at 150 VDC (µm) | Stiffness (N/µm) | Weight (g) | Price (yen) |
|---|---|---|---|---|---|---|---|---|---|---|
| AE0203D04DF | 0.09 | 261 | 100.0 | 200 | 2 x 3 | 5 | 4.6 ±1.5 | 43.5 | 0.4 | 7,524 |
| AE0203D08DF | 0.18 | 138 | 100.0 | 200 | 2 x 3 | 10 | 9.1 ±1.5 | 22 | 0.8 | 8,448 |
| AE0203D16DF | 0.35 | 69 | 50.0 | 200 | 2 x 3 | 20 | 17.4 ±2.0 | 11.5 | 1.6 | 10,032 |
| AE0203D44H40DF | 0.82 | 34 | 20.0 | 200 | 2 x 3 | 40 | 42.0 ±6.6 | 47.6 | 2.5 | 21,560 |
| AE0505D08DF | 0.75 | 138 | 50.0 | 850 | 5 x 5 | 10 | 9.1 ±1.5 | 93.4 | 2.6 | 20,190 |
| AE0505D16DF | 1.40 | 69 | 10.0 | 850 | 5 x 5 | 20 | 17.4 ±2.0 | 48.9 | 5.2 | 21,640 |
| AE0505D44H40DF | 3.40 | 34 | 5.0 | 850 | 5 x 5 | 40 | 42.0 ±6.6 | 20.2 | 11 | 41,750 |
| AE1010D16DF | 5.40 | 69 | 5.0 | 3,500 | 10 x 10 | 20 | 18.4 ±3.5 | 190.2 | 20 | 66,610 |
| AE1010D44H40DF | 13.6 | 34 | 2.0 | 3,500 | 10 x 10 | 40 | 42.0 ±6.6 | 83.3 | 36 | 123,063 |
| AE1414D16DF | 10.80 | 69 | 2.0 | 7,000 | 14 x 14 | 20 | 18.4 ±3.5 | 380.4 | 38 | 132,000 |
| AE2525D15DF | 30.50 | 69 | 0.4 | 20,000 | 25 x 25 | 20 | 15.6 ±2.0 | 1,282 | 105 | 198,000 |
| AE1010D08H09DF | 2.90 | 152 | 10.0 | 3,500 | 10 x 10 | 9 | 9.0 ±2.0 | 388.9 | 9 | 53,830 |
| AE1010D18H18DF | 6.60 | 76 | 5.0 | 3,500 | 10 x 10 | 18 | 20.0 ±3.5 | 175 | 19 | 66,800 |
| AE1020D44H40DF | 27.2 | 34 | ― | ― | ― | ― | 42.0 ±6.6 | ― | ― | 221,760 |
| AH10x12.5D50H40DF | 27 | 34 | ― | ― | ― | ― | 48.5 ±6.6 | ― | ― | 253,440 |
Features and applications
Features
- Highly responsive
- About 60 per cent conversion efficiency from electrical to mechanical energy
- About 20 mJ of mechanical energy per cubic centimetre
- About 3,500 N of output force per square centimetre of cross section
- A good energy source for a mechanical transformer
- Positioning controllable to nanometre order
- Low power consumption; it holds position at leakage current, 100 µA or less
Applications
Positioning, autofocus in optical systems, pumps, valves, vibration sources, vibration control, sensors, image stabilization in digital cameras, mirror and prism positioning, manipulators, motors and printers.
Dimensions and performance
| Model | H | W1 | W2 | W3 | T1 | T2 | L | φd | φD |
|---|---|---|---|---|---|---|---|---|---|
| AE0203D04DF | 5 ±0.1 | 3 ±0.1 | 3.4 max | 5.5 max | 2 ±0.1 | 2.4 max | 100 | 0.3 | 0.5 |
| AE0203D08DF | 10 ±0.1 | ― | ― | ― | ― | ― | ― | ― | ― |
| AE0203D16DF | 20 ±0.1 | ― | ― | ― | ― | ― | ― | ― | ― |
| AE0203D44H40DF | 40 ±0.1 | ― | ― | ― | ― | ― | ― | ― | ― |
| AE0505D08DF | 10 ±0.1 | 5 ±0.1 | 5.4 max | 7.5 max | 5 ±0.1 | 5.4 max | ― | ― | ― |
| AE0505D16DF | 20 ±0.1 | ― | ― | ― | ― | ― | ― | 0.5 | 0.8 |
| AE0505D44H40DF | 40 ±0.1 | ― | ― | ― | ― | ― | ― | ― | ― |
| AE1010D16DF | 20 ±0.1 | 10 ±0.1 | 10.4 max | 12.5 max | 10 ±0.1 | 10.4 max | ― | ― | ― |
| AE1010D44H40DF | 40 ±0.1 | ― | ― | ― | ― | ― | ― | ― | ― |
| AE1414D16DF | 20 ±0.1 | 14.2 ±0.1 | 14.6 max | 16.7 max | 14.2 ±0.1 | 14.6 max | ― | ― | ― |
| AE2525D15DF | 20 ±0.1 | 25.1 ±0.1 | 25.5 max | 27.6 max | 25.1 ±0.1 | 25.5 max | ― | ― | ― |
| AE1020D44H40DF | 40 ±0.1 | 20 ±0.1 | 20.4 max | 22.5 max | 10 ±0.1 | 10.4 max | ― | ― | ― |
| AH10x12.5D50H40DF | 40 ±0.1 | 12.5 ±0.1 | 12.9 max | 15.0 max | 10 ±0.1 | 10.4 max | ― | ― | ― |
Performance
| Item | Standard | Conditions |
|---|---|---|
| Operating temperature | -25 to +85 ℃ | Under DC voltage this is the ambient temperature. Under AC drive, add the temperature rise from generated heat. |
| Recommended storage | -5 to +40 ℃, below 40 %RH | Store at room temperature with no condensation. |
| Dissipation factor | 5 per cent or less | ― |
| Tensile strength | One tenth of the generated force | ― |
| Temperature cycle test | Displacement within ±20 per cent of the initial value; capacitance within ±30 per cent; tan δ below the initial rated value; insulation resistance 1 MΩ or more; no visible defect | Room temperature for 3 minutes, -25 ℃ for 30 minutes, room temperature for 3 minutes, +85 ℃ for 30 minutes, repeated for 10 cycles. |
Characteristic data
Source: TOKIN catalogue, Multilayer Piezoelectric Actuators.
Reliability
Humidity affects piezo actuators, as do applied voltage and ambient temperature. TOKIN expresses the reliability of these actuators in static use as a mean time to failure. What follows is based on measured data only.
Under DC voltage
The MTTF in a real application is estimated from equation 1, using the MTTF observed under accelerated conditions as the reference.
Under pulse voltage
Pulse drive raises the temperature through dielectric loss in the ceramic, which makes the element less sensitive to humidity. The effect depends on the element shape, the pulse waveform and the frequency, so it cannot be reduced to an equation the way DC drive can. In TOKIN's testing of the AE0203D08, a 0 to 150 V rectangular pulse at 500 Hz for 500 hours, roughly 900 million pulses, produced no failures.
Ringing caused by how the element is fixed and by the rate of voltage rise can damage it physically.
User guidelines
- These actuators are resin coated. For reliability, avoid handling them with bare hands, avoid physical shock, and store them dry, below 40 %RH, at -5 to +40 ℃ and free from vibration. Do not let condensation form on the surface.
- Align the centre axis of the generated displacement with the centre axis of the load, and keep that axis perpendicular to the mounting surface.
- Do not bend, twist or apply tension to the actuator or its lead wires, and avoid physical shock.
- If the actuator has been above 100 ℃, or stored for more than three months, polarize it again using the circuit and conditions shown below.
- Bond with a high rigidity epoxy adhesive in as thin a layer as possible. Do not let adhesive form along the side of the actuator.
- With a thermosetting resin, repeat the polarizing treatment after the adhesive has set.
Tolerance for twisting and tension
| Twisting force | 3 x 10-1 N·m or less |
| Tension | 50 N or less |
Driving method, generated force and load
Electrical connection
Connect the red lead to the positive terminal of the power supply, and never apply a reverse voltage.
Handling
The applied voltage sets the displacement and the generated force. Allow for ringing from the element's own resonance and for hysteresis: drive it so that the rise time is at least three times the resonance period, otherwise ringing can damage it. Under pulse drive, watch the heat generated by dielectric loss, the charge and discharge current from the capacitive component, and the output impedance of the supply.
Which stack suits your design?
Tell us the displacement, force and envelope you are working with and we will recommend a model.
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