NAC2121 is one of Noliac's ring actuators, which can be stacked according to customers' needs. The ring stacks are typically used when a medium displacement at high force is required. Noliac's ring stacks are stacks of cofired monolithic piezoelectric low voltage actuators that convert an electrical input to a very high-resolution linear movement at high force.

Noliac's ring stacks are manufactured with ceramic layer thickness down to 20µm as standard in order to allow very low operating voltage for full performance of the piezo material. Noliac's ring stacks are mostly made to customer specifications, but a wide range of parts is available from stock as well.

NAC2121-Hxx Data Sheet

Product facts:

NAC2121-Hxx	Value	Tolerance
Length/outer diameter	6 mm	+0.4/-0.2 mm
Width/inner diameter	2 mm	+0.1/-0.3 mm
Width max/ Outer diameter max (including bus wire and solder material, no wire)	7.8 mm	max
Height (see table below)	4 - 60 mm	+/-0.2 mm or +/-1%*
Operating voltage	200 V
Free stroke	3.3 - 95.7 µm	+/-15%
Blocking force	1060 N	+/-20%
Capacitance	95 - 2750 nF	+/-15%
Stiffness	321 - 101N/µm	+/-20%
Maximum operating temperature	150 °C
Curie temperature	340 °C
Material	NCE51F
Unloaded resonance frequency	>248 kHz -> 18 kHz
External electrodes	Ag
Wires	28 AWG x 200 mm (+/-20 mm) Teflon

* Whichever is largest

Stacks options:

Height	Stroke	Capacitance
4 mm	3.3 µm	90 nF
6 mm	6.6 µm	190 nF
8 mm	9.9 µm	280 nF
10 mm	13.2 µm	380 nF
12 mm	16.5 µm	430 nF
14 mm	16.0 µm	470 nF
16 mm	23.1 µm	660 nF
18 mm	26.4 µm	760 nF
20 mm	29.7 µm	850 nF
22 mm	33 µm	950 nF
24 mm	36.3 µm	1040 nF
26 mm	39.6 µm	1130 nF
28 mm	42.9 µm	1230 nF
30 mm	46.2 µm	1320 nF
32 mm	49.5 µm	1420 nF
34 mm	52.8 µm	1510 nF
36 mm	56.1 µm	1610 nF
38 mm	59.4 µm	1700 nF
40 mm	62.7 µm	1800 nF
42 mm	66 µm	1890 nF
44 mm	69.3 µm	1980 nF
46 mm	72.6 µm	2080 nF
48 mm	75.9 µm	2170 nF
50 mm	79.2 µm	2270 nF
52 mm	82.5 µm	2360 nF
54 mm	85.8 µm	2460 nF
56 mm	89.1 µm	2550 nF
58 mm	92.4 µm	2650 nF
60 mm	95.7 µm	2740 nF

Typical outline:

The figure below shows the typical outline of NAC Ring Actuator Stack.

Symbol	Parameter	Unit
OD	Outer diameter excluding external connections	mm
ODM	Outer diameter max (including bus wire and solder material, no wire)	mm
ID	Inner diameter	mm
H	Height	mm

Please, specify height when asking for a quote

• Wires selection guide
• Piezo materials
• Blocking force and Free Stroke
• Capacitance
• Curie Temperature

All technical information of this document is not contractual and can be changed without prior notice.