Datasheet > MC306

MC306

更新时间： 2024-02-06 09:27:19

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描述
SMALL SMD LOW / MEDIUM-FREQUENCY CRYSTAL UNIT

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数据手册

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MC306 数据手册

SMALL SMD LOW / MEDIUM-FREQUENCY

CRYSTAL UNIT

MC-306

• High-density mounting-type SMD.

•

Photolithography finished allows uniform and stable performance.

• Excellent reliability and environmental capability.

• 2.54mm thickness is equal to SMD-type IC.

Actual size

Specifications (characteristics)

Item

Symbol

Remarks

Specifications

20.000 kHz to 165.000 kHz

Nominal frequency

32.768 kHz

T^STG

TOPR

-55˚C to +125˚C

-40˚C to +85˚C

1.0µW max.

Stored as bare product after unpacking

Storage temperature

Operating temperature

Temperature

range

Maximum drive level

Soldering condition

Twice at under 260˚C within 10 sec.

or under 230˚C within 3 min.

TSOL

Ta=25˚C, DL=0.1µW

Frequency tolerance (standard)

Peak temperature (frequency)

Temperature coefficient (frequency)

Load capacitance

±20ppm, ±50ppm

±50ppm, ±100ppm

∆f/f

θT

25˚C ±5˚C

-0.04ppm/˚C max.

6pF to ∞

Please specify

C^L

Series resistance

50 kΩ max.

1.8fF typ.

55 kΩ to 10 kΩ

As per below table

Motional capacitance

Shunt capacitance

4.0fF to 0.6fF

2.0pF to 0.6pF

0.9pF typ.

Insulation resistance

Aging

500 MΩ min.

±5ppm/Y max.

±3ppm/Y max.

Ta=25˚C ±3˚C, first year

Three drops on a hard board from 75 cm or excitation

test with 3000G x 0.3ms x 1/2 sine wave x 3 directions

±5ppm max.

Shock resistance

S.R.

There are some cases that a parts of the cylindrical capsule of quartz unit expose on the surface of the molding material.

Series resistance

Frequency (kHz)

30 ≤ f < 40

45K Ω max.

60 ≤ f < 70

15K Ω max.

70 ≤ f < 120

12K Ω max.

20 ≤ f < 30

55K Ω max.

40 ≤ f < 60

120 ≤ f < 165

10K Ω max.

Series resonance

resistance (Ω)

20K Ω max.

(Unit: mm)

External dimensions

Recommended soldering pattern

8.0 max.

Internal connection

1.3

4.2

1.3

32.768k

571

0.5

5.5

1.9

(0.9)

Do not connect #2 and #3 to external device.

http://www.spezial.cz---spezial@spezial.cz---Hotlines:Tel (02)24342200---Fax(02)24343200

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