70.000MHZHC49-4H/20/15/-20+70/30PF/3OT datasheet, PDF

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70.000MHZHC49-4H/20/15/-20+70/30PF/3OT: DescriptionParallel - 3Rd Overtone Quartz Crystal, 70MHz Nom, ROHS AND REACH COMPLIANT, RESISTANCE WELD, HERMETIC SEALED, HC49-4H, 2 PIN; CategoryPassive components Crystal/resonator; File Size112KB，1 Pages; ManufacturerEuroquartz; Websitehttp://www.euroquartz.co.uk/; Environmental Compliance

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70.000MHZHC49-4H/20/15/-20+70/30PF/3OT Overview

Parallel - 3Rd Overtone Quartz Crystal, 70MHz Nom, ROHS AND REACH COMPLIANT, RESISTANCE WELD, HERMETIC SEALED, HC49-4H, 2 PIN

70.000MHZHC49-4H/20/15/-20+70/30PF/3OT Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Objectid	1321954441
package instruction	ROHS AND REACH COMPLIANT, RESISTANCE WELD, HERMETIC SEALED, HC49-4H, 2 PIN
Reach Compliance Code	compliant
Other features	AT-CUT; BULK; TAPE AND REEL
Ageing	3 PPM/FIRST YEAR
Crystal/Resonator Type	PARALLEL - 3RD OVERTONE
Drive level	100 µW
frequency stability	0.0015%
frequency tolerance	20 ppm
load capacitance	30 pF
Installation features	THROUGH HOLE MOUNT
Nominal operating frequency	70 MHz
Maximum operating temperature	70 °C
Minimum operating temperature	-20 °C
physical size	L10.77XB4.34XH3.5 (mm)/L0.424XB0.171XH0.138 (inch)
Series resistance	80 Ω
surface mount	NO

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EURO

QUARTZ

EURO

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

DESCRIPTION

HC49-4H and HC49-4HL Crystals

OUTLINES & DIMENSIONS

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:

Oscillation Mode/Frequency

AT-Cut Fundamental:

AT-Cut 3rd Overtone:

BT-Cut Fundamental:

Calibration Tolerance at 25ºC:

Frequency Stability:

Load Capacitance (CL):

Ageing at 25°C:

Drive Level:

Storage Temperature Range:

Crystal Holder:

RoHS Status:

Supply format:

3.2MHz to 70.0MHz

3.2MHz to 48.0MHz

27.0MHz to 70.0MHz

24.0MHz to 48.0MHz

±5ppm, ±10ppm, ±20ppm or

±30ppm 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

Resistance-weld hermetic seal

Compliant

Bulk pack (Radial tape and reel

is available)

ESR and OSCILLATION MODE

Frequency

Range MHz

3.2 ~ 3.4

3.5 ~ 6.0

6.1 ~ 10.0

10.1 ~ 30.0

24.0 ~ 48.0

27.0 ~ 30.0

30.1 ~ 50.0

50.1 ~ 70.0

Crystal Cut

Osc. Mode

AT-Fund.

BT-Fund.

AT-3rd ot

ESR

Ω Max.

300

120

150

100

PART NUMBERS

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

Example:

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

Frequency

Package

HC49-4H

HC49-4HL

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

FREQUENCY STABILITY vs OPERATING TEMPERATURE RANGE

Temp. °C/ppm

-10 to +60

-20 to +70

-40 to +85

±10

ASK

±15

±20

±25

±30

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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