QESM49H32150LO30203.490MHZ datasheet, PDF

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QESM49H32150LO30203.490MHZ: DescriptionParallel - Fundamental Quartz Crystal, 3.49MHz Nom, HC49, SMD, 2 PIN; CategoryPassive components Crystal/resonator; File Size3MB，5 Pages; ManufacturerRakon Limited

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QESM49H32150LO30203.490MHZ Overview

Parallel - Fundamental Quartz Crystal, 3.49MHz Nom, HC49, SMD, 2 PIN

QESM49H32150LO30203.490MHZ Parametric

Parameter Name	Attribute value
Objectid	145207563110
package instruction	HC49, SMD, 2 PIN
Reach Compliance Code	unknown
Other features	AT-CUT
Ageing	3 PPM/FIRST YEAR
Crystal/Resonator Type	PARALLEL - FUNDAMENTAL
Drive level	100 µW
frequency stability	0.002%
frequency tolerance	50 ppm
load capacitance	20 pF
Installation features	SURFACE MOUNT
Nominal operating frequency	3.49 MHz
Maximum operating temperature	60 °C
Minimum operating temperature
physical size	11.4mm x 4.7mm x 3.2mm
Series resistance	150 Ω
surface mount	YES

QESM49H32150LO30203.490MHZ Preview

FREQUENCY

QESM49H2 / H32

HC49 SMD Crystal – SMD packaged

Specification (Rev-G)

Electrical Characteristics .....................................................P01

ESR vs. frequency range and Mode of vibration .................P01

Mechanical Characteristics ..................................................P01

Ordering Information ............................................................P02

Suggested Reflow Soldering Profile .....................................P03

Tape Drawing ......................................................................P03

Reel Drawing .......................................................................P04

www.temexpress.com

Temexpress is

a brand name

Frequency

QESM49H2 / H32

HC49 SMD Crystal – SMD packaged

Specification (rev-G)

May 23 , 2016

Electrical Characteristics

Electrical Parameters

Frequency range

(see Note 1)

Temperature Stability

Operating Temperature Range

Storage temperature range

Shunt capacitance C

Load capacitance

Drive level

Ageing (First Year)

Insulator resistance

Unit

MHz

± ppm

°C

µW

± ppm

MΩ

500

100

-40

Customized specification upon request

Minimum Typical Maximum

3.000

-20/+70

100.00

-40/+85

+85

7.0

6pF ~ 32pF or series

500

Ref at 25°C

At 100V

Refer to Ordering Information

Test conditions

Frequency Tolerance

(at 25°C) ± ppm

Note 1 :

8 MHz is the minimum frequency for package QESM49H32

ESR vs. frequency range and Mode of vibration

Frequency range

(MHz)

3.00 to 3.49

3.50 to 3.99

4.00 to 4.99

5.00 to 6.99

7.00 to 7.99

8.00 to 8.99

9.00 to 9.99

Mode of vibration Max ESR (Ω)

Fund. / AT

150

120

100

Frequency range

(MHz)

10.00 to 10.99

11.00 to 19.99

20.00 to 40.00

27.00 to 29.99

30.00 to 44.99

45.00 to 80.00

Mode of vibration

Fund. / AT

3 / AT

Max ESR (Ω)

100

Mechanical Characteristics

TEMEXPRESS reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.

Frequency

QESM49H2 / H32

HC49 SMD Crystal – SMD packaged

Specification (rev-G)

May 23 , 2016

Heights (mm)

49H2

H = 4.0 max

49H32

H = 3.2 max

Marking for SM94H2 / H32

Frequency in MHz (6 digits on the top)

ex: 10.000

Laser marking

Mechanical Conditions

Vibration 10g, 10 H to 2 kHz

according to standard

CEI68-2-63

Shocks

100g, 6 ms according to

standard CEI68-2-27

Note 1 :

QESM49H serie is fully RoHS compliant.

Ordering Information

QESM49H2

Part numbering system

25.000MHZ

Package type

Vibration

mode

Frequency

tolerance

Operating

temperature

range

D=-40°C

F= -30°C

H=-20°C

J=-10°C

L=0°C

M=+50°C

N=+55°C

O=+60°C

Q=+70°C

T=+85°C

Frequency

stability

Load

Capacitance

Nominal

Frequency

(MHz)

Please enter the

nominal

frequency

QESM49H2 :

QESM49H32 :

HC49 SMD package

1 = Fundamental

3 = 3 Overtone

10=±10ppm

30=±30ppm

50=±30ppm

10=±10ppm

30=±20ppm

50=±30ppm

16=16pF

Please, enter the

value of load

capacitance

TEMEXPRESS reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.

Frequency

QESM49H2 / H32

HC49 SMD Crystal – SMD packaged

Specification (rev-G)

May 23 , 2016

Suggested Reflow Soldering Profile

The product has been tested to withstand the Reflow Profile shown. The Reflow Profile used to solder

TEMEXPRESS QESM49Hx crystals are determinated by the solder paste Manufacturer’s specification. It is

recommended that the Reflow Profile used does not exceed the one shown above.

Tape Drawing

TEMEXPRESS reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.

Frequency

QESM49H2 / H32

HC49 SMD Crystal – SMD packaged

Specification (rev-G)

May 23 , 2016

Reel Drawing

Multiple

1000pcs per reel

TEMEXPRESS reserves the right to modify herein specifications and informations at any time when necessary to provide optimum performance and cost.

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