Actual size
http://www.epsontoyocom.co.jp
Crystal unit
Crystal unitCrystal unit
Crystal unit
Epson Toyocom
Eps o n To yo co mEps o n To yo co m
Eps o n To yo co m
S
p
ecifications
(
characteristics
)
Specifications
Item Symbol FC-145 FC-255 FC-255 Remarks
Nominal frequency range f_nom 32.768 kHz 32 kHz to 100 kHz Please contact us for inquiries
regarding available frequencies.
Storage
temperature T_stg -55 °C to +125 °C Store as bare product after unpacking
Temperature
range Operating
temperature T_use -40 °C to +85 °C
Level of drive DL 0.5 µW Max.
Frequency tolerance
(standard) f_tol ±20 × 10
-6
+25 °C, DL=0.1 µW
Please ask for tighter tolerance
Turnover temperature Ti +25 °C ±5 °C
Parabolic coefficient B -0.04 × 10
-6
/ °C
2
Max.
Load capacitance CL 7 pF,9 pF,12.5 pF 7 pF, 12.5 pF 7 pF, 12.5 pF Please specify
Motional resistance (ESR) R
1
70 kΩ Max. 65 kΩ Max. 70 kΩ to 30 kΩ
Motional capacitance C
1
3.4 fF Typ. 2.0 fF Typ. 2.3 fF to 0.6 fF
Shunt capacitance C
0
1.0 pF Typ. 1.3 pF Typ. 1.7 pF to 0.9 pF
Frequency aging f_age ±3 × 10
-6
/ year Max. +25 °C, First year
Ex te r na l dim e nsions
(
Unit:mm
)
.
Foot
p
rin
t
(
Recommended
)
(
Unit:mm
)
FC-145 FC-255
kHz RANGE CRYSTAL UNIT
LOW PROFILE SMD
FC
-
145
/
FC
-
255
•Frequency range : 32.768 kHz (32 kHz to 100 kHz)
•External dimensions : 4.1 × 1.5 × 0.8 t (mm) ···FC-145
: 4.9 × 1.8 × 0.8 t (mm) ···FC-255
•O vertone or d er : Fundamental
•Applications : Small communications devices
Product Number (please contact us)
FC-145 : Q13FC1450xxxx00
FC-255 : Q1xFC2550xxxx00
4.1±0.1
0.9
2.3
1.5±0.1
0.8±0.1
A501J
#2
Internal connection
(TOP VIEW)
#1 #2
FC-145
#1
4.9±0.1
0.85
3.2
0.8±0.1
A501J
#2
1.8±0.1
FC-255
#1
Internal connection
(TOP VIEW)
#1 #2
1.8
.2
1.1
2.2
4.2
1.3
FC-145 FC-255
∗Do not desi gn any patt er ns on shaded area.
“QMEMS” EPSON TOYOCOM
In order to meet customer needs in a rapidly advancing digital,
broadband and ubiquitous society, we are committed to offering products
that are one step ahead of the market and a rank above the rest in quality.
To achieve our goals, we follow a “3D (three device) strategy” designed to
drive both horizontal and vertical growth. We will to grow our three device
categories of “Timing Devices”, ”Sensing Devices” and “Optical Devices”,
and expand vertical growth through a combination of products from these
categories.
A Quartz MEMS is any high added value quartz device that exploits the
characteristics of quartz crystal material but that is produced using MEMS
(micro-electro-mechanical system) processing technology.
Market needs are advancing faster than previously imagined toward
smaller, more stable crystal products, but we will stay ahead of the curve
by rolling out products that exceed market speed and quality
requirements. We want to further accelerate the 3D strategy by QMEMS.
Quartz devices have become crucial in the network environment where
products are increasingly intended for broadband, ubiquitous applications
and where various types of terminals can transfer information almost
immediately via LAN and WAN on a global scale. Epson Toyocom
Corporation addresses every single aspect within a network environment.
The new corporation offers “Digital Convergence” solutions to problems
arising with products for consumer use, such as, core network systems
and automotive systems.
PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM
CONFORMING TO INTERNATIONAL STANDARDS
At Epson Toyocom, 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 certification.
WORKING FOR HIGH QUALITY
In order provide high quality and reliable products and services than meet customer needs,
Epson Toyocom made early efforts towards obtaining ISO9000 series certification and has acquired ISO9001 for all business 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.)
►The products have been designed for high reliability applications such as Automotive.
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 Epson Toyoc om.
●The information, applied circuitry, programming, usage, etc., written in this material is intended for reference only. Epson Toyocom 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.
●Any product described in this material may contain technology or the subject relating to strategic products under the control of the Foreign
Exchange and Foreign Trade Law of Japan and may require an export license from the Ministry of International Trade and Industry or other
approval from another government agency.
●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 Epson Toyocom 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.
● In this new crystal master for Epson Toyocom, product codes and markings will remain as previously identified prior to the merger.
Due to the on-going strategy of gradual unification of part numbers, please review product codes and markings, as they will change during the
course of the coming months.
We apologize for the inconvenience, but we will eventually have a unified part numbering system for Epson Toyocom that will be user friendly.
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 la
y
er, and
g
lobal deforestation.
ISO/TS 16949 is a global standard based on QS-9001, a severe standard
corresponding to the requirements from the automobile industry.