2010.03.19 9307PIEVOL04E

●All specifications in this catalog and production status of products are subject to change without notice. Prior to the purchase, please contact NEC TOKIN for updated product data.

●Please request for a specification sheet for detailed product data prior to the purchase.

●Before using the product in this catalog, please read "Precautions" and other safety precautions listed in the printed version catalog.

10 Piezoelectric Ceramics Vol.04

Table 1-1. Characteristics of Standard NEPEC

®

NPM Materials

Loss factor

Characteristics

Relative

dielectric

constant

Frequency

constant

Electro-

mechanical

coupling

constant

Elastic

constant

Piezo-

electric

constant

Poisson's ratio

Temperature

coefficient

Aging rate

Mechanical

quality factor

Curie

temperature

Density

Thermal

expansion

coefficient

1400

1350

0.3

2160

1600

1510

1960

970

(0.65)

0.55

0.34

0.68

0.55

0.71

12.7

15.4

7.9

6.5

-133

302

419

-10.4

23.5

45.1

0.32

300

300

1800

2300

0.4

-2

1500

325

7.77

30

1400

1300

0.3

2160

1570

1490

2010

1170

(0.67)

0.56

0.33

0.67

0.52

0.66

13.1

15.6

7.6

6.4

-132

296

464

-10.7

23.8

39.4

0.31

600

400

700

3000

0.4

-2

1800

315

7.79

12

1100

1400

0.4

2240

1670

1520

2000

920

(0.67)

0.56

0.34

0.67

0.52

0.78

11.2

15.2

8.9

6.6

-99

226

652

-13.1

30.0

44.4

0.24

-250

-550

3700

3600

0.5

-5

1600

320

7.72

11

5440

5000

2.0

2040

1410

1370

1800

1110

(0.57)

0.50

0.34

0.68

0.62

0.66

14.8

18.1

6.8

5.5

-287

635

930

-6.0

13.2

21.0

0.34

200

900

3800

3500

0.5

-5

70

145

8.00

14

1800

2000

2.0

1960

1410

1310

1940

860

(0.78)

0.62

0.38

0.73

0.52

0.77

16.5

19.9

6.1

5.0

-198

417

711

-12.1

25.4

41.0

0.34

-300

-150

3500

3000

0.1

-5

75

330

7.82

29

Material

Unit

δ

Qm

Tc (˚C)

N-6

N-61

N-8

N-10

N-21

ε

0

tan

δ (%)

[Radial]

[Lengthwise]

[Longitudinal]

[Thickness]

[Shear]

[Radial]

[Transverse]

[Logitudinal]

[Thickness]

[Shear]

Kr

Kt

(Hz-m)

(Hz-m)

(Hz-m)

(Hz-m)

(Hz-m)

S

E

11

(

S

E

33

(

Y

E

11

(

Y

E

33

(

TK (fr)

(PPm/˚C)

TK (˚C)

(PPm/˚C)

- 20~20

°C

20~60

°C

- 20~20

°C

20~60

°C

fr (%/10 Years)

C (%/10 Years)

D (

(

(Room Temperature

~200

°C)

0