Crystal unit

Product Number (please contact us)

Q24FA20H0xxxx18
MHz RANGE CRYSTAL UNIT

FA - 20H
•Nominal frequency range : 12 MHz to 54 MHz
•External dimensions : 2.5× 2.0×0.55 mm
•Overtone order : Fundamental
•Applications : Mobile phone, Bluetooth, W-LAN
: ISM band radio, Clock for MPU Actual size

Specifications (characteristics)
Specifications
Item Symbol Conditions / Remarks
For RF Reference For Clock
Fundamental
Nominal frequency range f_nom 12.000 MHz to 54.000 MHz Please contact us about available
frequencies.
Storage temperature range T_stg -40 °C to +125 °C Storage as single product.
Operating temperature range T_use -40 °C to +85 °C (+105 °C) Please contact us about +85 °C < T_use
Level of drive DL 100 µW Max. 200 µW Max. Recommended: 1 µW to 100 µW
+25 °C
±10 × 10 ±30 × 10
-6 -6
Frequency tolerance f_tol
Please contact us for inquiries.
Frequency versus temperature -20 °C to +75 °C
±10 × 10 ±30 × 10
-6 -6
f_tem
characteristics Please contact us for inquiries.
Load capacitance CL 6 pF to ∞ Please specify.
Motional resistance (ESR) R1 As per table below -20 °C to +75 °C
±1 × 10 to ±3 × 10 / year Max. *1
-6 -6
Frequency aging f_age +25 °C, First year
*1 Please contact us for available frequency tolerances as they are dependent upon the nominal frequency.

Motional resistance (ESR)

Frequency Motional resistance
12.0 MHz ≤ f_nom < 16.0 MHz 150 Ω Max.
16.0 MHz ≤ f_nom ≤ 25.0 MHz 80 Ω Max.
25.0 MHz < f_nom ≤ 30.0 MHz 60 Ω Max.
30.0 MHz < f_nom ≤ 35.0 MHz 50 Ω Max.
35.0 MHz < f_nom ≤ 54.0 MHz 40 Ω Max.

Product name FA-20H 24.000000MHz 12.0 +10.0-10.0

(Standard form)
-6
Model Frequency Load capacitance(pF) Frequency tolerance(× 10 , +25 °C)
In addition to the above mentioned specification item, please specify frequency temperature characteristics
and operating temperature range in case of inquiry.

External dimensions (Unit:mm) Footprint (Recommended) (Unit:mm)

2.5±0.1

#3
#4
2.0±0.1

Marking 1.7
#1 #2
0.55 Max.

1.4
0.7 0.8

#1
#2 1.1
0.5 0.65

Internal c onnection
(TO P VIEW )
C 0.3 Min.

#3
#4 1.2
#4 #3
#1 #2
#2 and #4 are conn ected to the co ve r.
(Please connect to ground)
PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM
CONFORMING TO INTERNATIONAL STANDARDS
At Seiko Epson, all environmental initiatives operate under the
Plan-Do-Check-Action (PDCA) cycle designed to achieve continuous ISO 14000 is an international standard for environmental
improvements. The environmental management system (EMS) management that was established by the International
operates under the ISO 14001 environmental management standard. Standards Organization in 1996 against the background of
All of our major manufacturing and non-manufacturing sites, in growing concern regarding global warming, destruction of
Japan and overseas, completed the acquisition of ISO 14001 the ozone layer, and global deforestation.
certification.

WORKING FOR HIGH QUALITY

In order provide high quality and reliable products and services
than meet customer needs, ISO/TS16949 is the international standard that added the
Seiko Epson made early efforts towards obtaining ISO9000 series sector-specific supplemental requirements for automotive
certification and has acquired ISO9001 for all business industry based on ISO9001.
establishments in Japan and abroad. We have also acquired ISO/TS
16949 certification that is requested strongly by major automotive
manufacturers as standard.

►Explanation of the mark that are using it for the catalog

►Pb free.

►Complies with EU RoHS directive.

*About the products without the Pb-free mark.
Contains Pb in products exempted by EU RoHS directive.
(Contains Pb in sealing glass, high melting temperature type solder or other.)

►Designed for automotive applications such as Car Multimedia, Body Electronics, Remote Keyless Entry etc.

►Designed for automotive applications related to driving safety (Engine Control Unit, Air Bag, ESC etc ).

Notice
 This material is subject to change without notice.
 Any part of this material may not be reproduced or duplicated in any form or any means without the written permission of Seiko Epson.
 The information about applied circuitry, software, usage, etc. written in this material is intended for reference only. Seiko Epson does
not assume any liability for the occurrence of infringing on any patent or copyright of a third party. This material does not authorize the
licensing for any patent or intellectual copyrights.
 When exporting the products or technology described in this material, you should comply with the applicable export control laws and
regulations and follow the procedures required by such laws and regulations.
 You are requested not to use the products (and any technical information furnished, if any) for the development and/or manufacture of
weapon of mass destruction or for other military purposes. You are also requested that you would not make the products available to
any third party who may use the products for such prohibited purposes.
 These products are intended for general use in electronic equipment. When using them in specific applications that require extremely
high reliability, such as the applications stated below, you must obtain permission from Seiko Epson in advance.
/ Space equipment (artificial satellites, rockets, etc.) / Transportation vehicles and related (automobiles, aircraft, trains,
vessels, etc.) / Medical instruments to sustain life / Submarine transmitters / Power stations and related / Fire work equipment
and security equipment / traffic control equipment / and others requiring equivalent reliability.

 All brands or product names mentioned herein are trademarks and/or registered trademarks of their respective.

Seiko Epson Corporation