Datasheet > 27.000MHZHC49-4HL/5/20/-10+60/SR/3OT

27.000MHZHC49-4HL/5/20/-10+60/SR/3OT

更新时间： 2024-10-31 06:08:51

品牌	Logo	应用领域
EUROQUARTZ		/
页数	文件大小	规格书
1页	112K
描述
Series - 3Rd Overtone Quartz Crystal, 27MHz Nom, ROHS AND REACH COMPLIANT, RESISTANCE WELD, HERMETIC SEALED, HC49-4HL, 2 PIN

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27.000MHZHC49-4HL/5/20/-10+60/SR/3OT 数据手册

QUARTZ

EURO

HC49-4H and HC49-4HL Crystals

Low-profile crystal units

Low-cost, industry-standard crystal unit

AT-Cut strip crystal with hermetically sealed can

Frequency range 3.2MHz to 70MHz

Package height options available

OUTLINES & DIMENSIONS

DESCRIPTION

HC49-4H crystals have the same base outline as the industry-

standard HC49 crystal. The crystal uses at AT-cut strip crystal with an

hermetically sealed can. HC49-4H crystals provide a low cost source

of system clock frequency.

SPECIFICATION

Frequency Range:

3.2MHz to 70.0MHz

Oscillation Mode/Frequency

AT-Cut Fundamental:

AT-Cut 3rd Overtone:

BT-Cut Fundamental:

3.2MHz to 48.0MHz

27.0MHz to 70.0MHz

24.0MHz to 48.0MHz

±5ppm, ±10ppm, ±20ppm or

±30ppm at 25°C

Calibration Tolerance at 25ºC:

Frequency Stability:

Load Capacitance (CL):

Ageing at 25°C:

Series or from 8pF to 32pF

±3ppm maximum, 1st year,

±1ppm per year thereafter.

100mW typical, 500mW maximum

-50° to +105°C

Drive Level:

Storage Temperature Range:

Crystal Holder:

Resistance-weld hermetic seal

Compliant

RoHS Status:

Supply format:

Bulk pack (Radial tape and reel

is available)

ESR and OSCILLATION MODE

Frequency

Crystal Cut

ESR

Range MHz Osc. Mode

Ω Max.

3.2 ~ 3.4

3.5 ~ 6.0

AT-Fund.

BT-Fund.

AT-3rd ot

300

120

PART NUMBERS

6.1 ~ 10.0

10.1 ~ 30.0

24.0 ~ 48.0

27.0 ~ 30.0

30.1 ~ 50.0

50.1 ~ 70.0

Part numbers for HC49-4H crystals are generated as follows:

Example:

150

100

8.000MHz HC49-4H/30/50/-20+70/30pF/30R

Frequency

Package

HC49-4H

HC49-4HL

FREQUENCY STABILITY vs OPERATING TEMPERATURE RANGE

Temp. °C/ppm ±10 ±15 ±20 ±25 ±30

-10 to +60

-20 to +70

-40 to +85

ASK

Calibration tolerance

at 25°C (ppm)

Stability over temp. (ppm)

Operating temp. range (°C)

Circuit Condition

(SR = Series or 10~32pF)

Max ESR (i.e. 30R = 30Ω max.)

(

)

or 'ATF' or 'BTF' for AT or BT-cut fundamental, 3OT for 3rd overtone

EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE

Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 sales@euroquartz.co.uk

www.euroquartz.co.uk

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