Actual size

http://www.epsontoyocom.co.jp

Crystal unit

Crystal unit

Crystal unit

Crystal unit

Epson Toyocom

Epson Toyocom

Epson Toyocom

Epson Toyocom

Specifications (characteristics)

Item

Symbol

Specifications

Remarks

Nominal frequency range

f_nom

32.768 kHz

32 kHz to 100 kHz

Please contact us for inquiries regarding available

frequencies

Storage temperature

T_stg

-55

°C to +125 °C

Store as bare product after unpacking

Temperature

range

Operating temperature

T_use

-40

°C to +85 °C

Level of drive

DL

1.0

µW Max.

Operating Drive level

0.5

µW Max.

Frequency tolerance (standard)

f_tol

+25

°C, DL=0.1 µW

Turnover temperature

Ti

+25

°C ± 5 °C

Parabolic coefficient

B

-0.04

Load capacitance

CL

7 pF, 9 pF, 12.5 pF

Please specify

Motional resistance (ESR)

65 k

Ω Max.

65 k

Ω to 25 kΩ

Motional capacitance

1.9 fF Typ.

2.5 fF to 0.6 fF

Shunt capacitance

0.8 pF Typ.

1.2 pF to 0.5 pF

Frequency aging

f_age

+25

°C, First year

External dimensions

(Unit:mm)

.

Footprint (Recommended)

(Unit:mm)

MC-146

MC-156

kHz RANGE CRYSTAL UNIT

LOW PROFILE SMD

•Frequency range

:

32.768 kHz (32 kHz to 100 kHz)

•Thickness

:

1.4 mm Max. (MC-146)

:

1.5 mm Max. (MC-156)

•Overtone order

:

Fundamental

•Applications

:

Small communications devices

#1

#2

#3

#4

(0.75)

1.6

5.08

7.1 Max.

0.4

(0.75)

MC-156

#1

#2

#4

#3

Internal connection

(TOP VIEW )

6.7

#1

#2

#3

#4

#1

0.4

0.1

0.1

7.0 Max.

#4

#3

#2

0.4

0.2

0.2

0.2

#1

#2

#4

#3

Internal connection

(TOP VIEW)

MC-146

Metal may be exposed on the top or bottom of this prod uct. This will not affect any quality, reliability or electrical spec.

Do no t connect #2 and #3 to external device.

E A 9 9

E A 9 6

MC-146

MC-156

1.2

5.1

1.2

1.2

3.88

1.2

Product Number (please co ntact us)

MC-146

: Q14MC146xxxxx00

MC-156

: Q14MC156xxxxx00