Actual size
http://www.epsontoyocom.co.jp
Crystal unit Epson Toyocom
S
p
ecifications
(
characteristics
)
Item Symbol Specifications Conditions / Remarks
Nominal frequency range f_nom 32.768 kHz 20 kHz to 165 kHz Please contact us regarding available frequencies
Storage temperature T_stg -55 °C to +125 °C Store as bare product.
Operating temperature T_use -40 °C to +85 °C
Level of drive DL 1.0 μW Max.
Frequency tolerance (standard) f_tol ±20 × 10-6, ±50 × 10-6 ±50 × 10-6, ±100 × 10-6 +25 °C, DL=0.1 μW
Turnover temperature Ti +25 °C ±5 °C
Parabolic coeffi cient B -0.04 × 10-6 / °C2 Max.
Load capacit ance CL 6 pF to ∞ (standard :12.5 pF) Please specify
Motional resistance (ESR) R1 50 kΩ Max. As per below table
1.8 fF Typ. MC-306
Motional capacitance C1 2.0 fF Typ. 4.0 fF to 0.6 fF MC-405 / 406
0.9 pF Typ. MC-306
Shunt capacitance C0 0.85 pF Typ. 2.0 pF to 0.6 pF MC-405 / 406
Frequency aging f_age ±3 × 10-6 / year Max. ±5 × 10-6 / year Max. +25 °C, First year
Motional resistance
(
ESR
)
Frequency 20 kHz≤f_nom< 31.2 kHz 31.2 kHz≤f_nom< 40 k Hz 40 kHz≤f_nom< 90 kHz 90 kHz≤f_nom< 130 kHz 130 kHz≤f_nom≤165 kHz
Motional resistance 55 kΩ Max. 35 kΩ Max. 20 kΩ Max. 12 kΩ Max. 10 kΩ Max.
External dimensions
(
Unit:mm
)
.
Foot
p
rint
(
Recommended
)
(
Unit:mm
)
MC-306 MC-405 / 406
MC-306
Metal m ay b e exposed on the top or bott om of this pr od uc t.
This wil l not aff ect any qualit y, reli ab il it y or el ectr ical sp ec.
Do not conn ect #2 and #3 to external device.
Internal connection
(TOP VIEW )
#4
#1 #2
#3
1.9
(0.9)
(0.9)
5.5
0.5
2.54 Max.
2.38
8.0 Max.
#4
#1 #2
#3
3.8 Max.
3.2
32.768
k
E 571
Do not connect #2 and #3 of MC-406 to external device.
The first digit of No. means: 5×× ×× MC-405
6×××× MC-406
MC-405 / 406
#4
#1 #2
#3
#4
#1 #2
#3
Internal connection in MC-406
(TOP VIEW)
Internal connection in MC-405
(TOP VIEW )
0.2 Min.
3.6 Max.
3.15
2.54
2.54
4.06 Max.
#1
#4 #3
#2
10.41 Max.
9.60
32.768
E 6571A
0.51
0.51
2.29
MC-306 MC-405
1.52
0.8
4.1 3.9 4.1
1.52
4.1 3.9 4.1
4.1
MC-406
1.9 1.9
1.3
4.2
1.3 1.3
kHz RANGE CRYSTAL UNIT
SMD
MC - 306
MC - 405 / MC - 406
•Frequency range : 32.768 kHz (20 kHz to 165 kHz)
•Thickness : 8.0 × 3.8 × 2.54 mm ···MC-306
10.41 × 4.06 × 3.6 mm ···MC-405 / 406
•Overtone order : Fundamental
•Applications : Clock and Microcomputer
Product Number (please contact us)
MC-306 : Q1xMC3061xxxx00
MC-405 : Q1xMC4051xxxx00
MC-406 : Q1xMC4061xxxx00
“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 sta y 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 wher e
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.
QMEMS and its logos are registered trademarks or trademarks of Seiko
Epson Corporation in Japan and other countries.
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 th e 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 Toyocom.
• 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 expo rt 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 purp oses. You are also requested that you would not make the p roducts 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 document, 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.
• All brands or product names mentioned herein are trademarks and/or registered trademarks of their respective companies.
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/TS16949 is the international standard that added the sector-specific
supplemental requirements for automotive industry based on ISO9001.