FA-128 UNIT Datasheet

FA-128 Datasheet PDF, Equivalent

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Crystal unit
FA - 128
Nominal frequency range
External dimensions
Overtone order
: 16 MHz to 54 MHz
: 2.0 × 1.6 × 0.5 mm
: Fundamental
: Mobile phone, Bluetooth, W-LAN
: ISM band radio, Clock for MPU
Actual size
Product Number (please contact us)
Specifications (characteristics)
Symbol For RF Reference
For Clock
Conditions / Remarks
Nominal frequency range
16.000 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 W Max.
200 W Max. Recommended: 1 to 100 W
Frequency tolerance
10 10-6 *1
30 10-6
+25 C, please contact us for requirements
not listed in this specification.
Frequency versus
temperature characteristics.
10 10-6 *1
30 10-6
-20 C to +75 C, please contact us for
requirements not listed in this specification.
Load capacitance
6 pF to
Please specify.
Motional resistance (ESR)
As per table below
-20 C to +75 C
Frequency aging
f_age 1 10-6 / year Max. 5 10-6 / year Max. +25 C, First year
*1 Please contact us for available frequency tolerances as they are dependent upon the nominal frequency.
Motional resistance (ESR)
16.0 MHz f_nom < 18.0 MHz
18.0 MHz f_nom < 20.0 MHz
20.0 MHz f_nom < 24.0 MHz
24.0 MHz f_nom < 26.0 MHz
26.0 MHz f_nom 54.0 MHz
Motional resistance
200 Max.
150 Max.
100 Max.
80 Max.
60 Max.
Product name
(Standard form)
FA-128 24.000000MHz 12.0 +10.0-10.0
② ③④
Frequency Load capacitance(pF) Frequency tolerance(× 10-6, +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
Footprint (Recommended)
#4 #3
#1 #2
0.65 0.6
#1 #2
C 0.2 Min.
#4 #3
Internal connection
#4 #3
#1 #2
#2 and #4 are connected to the co ve r.
(Please connect to ground)

At Seiko Epson, all environmental initiatives operate under the
Plan-Do-Check-Action (PDCA) cycle designed to achieve continuous
improvements. The environmental management system (EMS)
operates under the ISO 14001 environmental management standard.
All of our major manufacturing and non-manufacturing sites, in
Japan and overseas, completed the acquisition of ISO 14001
ISO 14000 is an international standard for environmental
management that was established by the International
Standards Organization in 1996 against the background of
growing concern regarding global warming, destruction of
the ozone layer, and global deforestation.
In order provide high quality and reliable products and services
than meet customer needs,
Seiko Epson made early efforts towards obtaining ISO9000 series
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establishments in Japan and abroad. We have also acquired ISO/TS
16949 certification that is requested strongly by major automotive
manufacturers as standard.
ISO/TS16949 is the international standard that added the
sector-specific supplemental requirements for automotive
industry based on ISO9001.
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 ).
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 data, circuitry, software, usage, etc. written in this material is intended for reference only. Seiko Epson
does not assume any liability for the occurrence of customer damage or 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

Features Crystal unit MHz RANGE CRYSTAL UNIT FA - 128 Nominal frequency range E xternal dimensions Overtone order Applications : 16 MHz to 54 MHz : 2.0 × 1.6 × 0.5 mm : Fundamental : Mobil e phone, Bluetooth, W-LAN : ISM band ra dio, Clock for MPU Actual size Produc t Number (please contact us) Q22FA1280x xxx18 Specifications (characteristics) Specifications Item Symbol For RF R eference For Clock Conditions / Remar ks Nominal frequency range f_nom 16. 000 MHz to 54.000 MHz Fundamental Plea se contact us about available frequenci es. 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 W Max. 200 W Max. Recommended: 1 to 100  W Frequency tolerance (standard) f_to l 10  10-6 *1 30  10-6 + 25 C, please contact us for requirem ents not listed in this specification. Frequency versus temperature characteristics. (standard) f_t.
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