HC49-4H/354EF20.0MHZ datasheet, PDF

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HC49-4H/354EF20.0MHZ: DescriptionParallel - Fundamental Quartz Crystal, 20MHz Nom,; CategoryPassive components Crystal/resonator; File Size47KB，1 Pages; ManufacturerGolledge Electronics; Websitehttp://www.golledge.com/; Environmental Compliance

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HC49-4H/354EF20.0MHZ Overview

Parallel - Fundamental Quartz Crystal, 20MHz Nom,

HC49-4H/354EF20.0MHZ Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Reach Compliance Code	compliant
Other features	TAPE AND REEL
Ageing	3 PPM/FIRST YEAR
Crystal/Resonator Type	PARALLEL - FUNDAMENTAL
Drive level	100 µW
frequency stability	0.005%
frequency tolerance	30 ppm
load capacitance	18 pF
Manufacturer's serial number	HC49-4H
Installation features	THROUGH HOLE MOUNT
Nominal operating frequency	20 MHz
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
physical size	L11.05XB4.65XH3.5 (mm)/L0.435XB0.183XH0.138 (inch)
Series resistance	50 Ω
surface mount	NO
Base Number Matches	1

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Low Profile Crystal

HC49-4H & HC49-3H

Specifications

HC49-4H: 3.5mm maximum height

HC49-3H: 2.5mm maximum height

Parameters

Package:

2.50

(max)

0.43Ø

12.00

(min)

12.00

(min)

Product

HC49-4H

HC49-3H

Option

Code

HC49-4H

HC49-3H

3.50*

(max)

0.43Ø

Frequency range:

1.0MHz

3.2768 ~ 90.0MHz

3.579 ~ 90.0MHz

Calibration tolerance:

±20ppm

±30ppm

±50ppm

Other values (±10ppm ~ ±100ppm)

±30ppm

±50ppm

±100ppm

Other values (±10ppm ~ ±100ppm)

specify

4.88

4.65

11.05

4.88

4.65

11.05

Temperature stability:

HC49-4H

*1.0MHz HC49-4H height is 4.00 (max)

HC49-3H

Scale 1:1

Features

Industry standard HC49 footprint

Fundamental mode available up to 50.0MHz

Comprehensive stock of standard frequencies

Low profile for close board stacking

Operating temperature range:

-10 to +60°C

-20 to +70°C

-30 to +80°C

-40 to +85°C

Other values

Circuit condition:

12pF

16pF

18pF

20pF

30pF

Other values

Fundamental

3rd overtone

Oscillation mode:

Equivalent series resistance (max):

3000 (1.0MHz)

200 (>3.2 ~ 3.5MHz)

150 (>3.5 ~ 4.0MHz)

120 (>4.0 ~ 4.4MHz)

100 (>4.4 ~ 7.0MHz)

70 (>7.0 ~ 10.0MHz)

50 (>10.0 ~ 50.0MHz, fund)

100 (>25.0 ~ 90.0MHz, 3rd OT)

Static capacitance (C

Ageing:

7pF max

±3ppm max first year

100µW

Test drive level:

Standard.

Optional - Please specify required code(s) when ordering

Ordering Information

Product name + frequency + specification code

eg:

HC49-4H/351DF 18.4320MHz

30/50/10/16-F

HC49-3H/232S3 48.0MHz

20/30/20/S-3

Insulating washers and mounting clips available. See our website

for details.

Available on T&R - 1k pcs per reel.

Centre ground lead available on request.

Refer to our website for T&R and soldering details.

IMPORTANT: Not normally available in small quantities of

non-standard frequencies. Please check with us before ordering.

Tel:

+44 1460 256 100

03 Oct 2011

Fax:

+44 1460 256 101

E-mail:

sales@golledge.com

Web:

www.golledge.com

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