MC-14632.768KA-AG5:ROHS - Seiko Epson Corporation

Actual size

http://www.epsontoyocom.co.jp

Crystal unit

Crystal unitCrystal unit

Crystal unit

ecifications

(

characteristics

)

Item Symbol Specifications Remarks

Nominal frequency range f 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 Stored as bare product after unpacking

Temperature

range Operating temperature T_use -40 °C to +85 °C

Level of drive DL 1.0 µW Max. Operating Drive level 0.5 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 coefficient B -0.04 × 10

-6

/ °C

Max.

Load capacitance CL 7 pF, 12.5 pF Please specify

Motional resistance (ESR) R

65 kΩ Max. 65 kΩ to 25 kΩ

Motional capacitance C

1.9 fF Typ. 2.5 fF to 0.6 fF

Shunt capacitance C

0.8 pF Typ. 1.2 pF to 0.5 pF

Frequency aging f_age ±3 × 10

-6

/ year Max. +25 °C, First year

External dimensions

(

Unit:mm

)



Foot

rint

(

Recommended

)

(

Unit:mm

)



MC-146 MC-156

kHz RANGE CRYSTAL UNIT

LOW PROFILE SMD

146

156

•Frequency range : 32.768 kHz (32 kHz to 100 kHz)

•Thickness : 1.4 mm Max. (MC-146)

: 1.5 mm Max. (MC-156)

•Overtone order : Fundamental

•Applications : Small communications devices

•Lead(Pb)-free : Contains high melting temperature type

solder (Pb85 %) exempted by RoHS directive.

#1 #2

2.50

3.3 Max.

1.30

1.5 Max.

(0.75) 1.6

5.08

7.1 Max.

0.4

(0.75)

MC-156

#1 #2

#4 #3

Internal c onnection

0.55

6.7

#1 #2

1.5 Max.

0.15

1.4 Max.

0.4

0.1 0.1

7.0 Max.

0.3

#4 #3

0.4

0.25

0.2 0.2

0.2

#1 #2

#4 #3

Internal connection

MC-146

Metal may be exposed on the top or bottom of this product. This will not affect any qua lity, reliability or electrical spec.

Do not connect #2 and #3 to external device.

E A 9 9

E A 8 9

MC-146 MC-156

1.2

5.1

1.2

0.6 0.6

0.3

1.2

3.88

1.5

1.5 1.0

1.2

End to End EPSON TOYOCOM

The development of our ubiquitous network society has caused

a diversification of applications and has increased the demand for

high-level quartz devices in terms of quality, quantity, and

function.

The Quartz Device Operations Division of SEIKO EPSON

CORPORATION (EPSON)and TOYO COMMUNICATION

EQUIPMENT CO.,LTD.(TOYOCOM) were integrated on October

1,2005 to establish a new company, EPSON TOYOCOM

CORPORATION, to meet these market and customer demands.

Each company contributes its own strength; EPSON holds a

strong presence in consumer products and TOYOCOM is strong

in industrial products. The consolidation of these two companies

in a new company that provides advanced expertise with a wide

range of products for terminals and infrastructure to our

customers.

Quartz device 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 “end-to-end” solutions to problems arising with

products for consumer use, such as core network systems and

automotive systems.

PROMOTION OF ENVIRONMENTAL MANAGEMENT SYSTEM

CONFORMING INTERNATIONAL STANDARD

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.

In May 2001, all of our major manufacturing and non-manufacturing sites, in Japan and overseas, completed the acquisition of ISO 14001 certification.

In the future, new group companies will be expected to acquire the certification around the third year of operations.

WORKING FOR HIGH QUALITY

EPSON TOYOCOM quickly began working to aquire company-wide ISO 9000 series certification, and has acquired ISO 9001 or ISO 9002 certification

with all targeted products manufactured in Japanese and overseas plants.

The Quartz Device Operations Division (Ina Japan,EPM and SZE) have acquired QS-9000 certification, which are of higher Level.

Also QS-9000 and TS 16949 certification, which is of higher level, has been acquired.

Notice

●The mate rial 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 circuit, program, usage etc., written in this material is just for reference. EPSON TOYOCOM does not assume any liability for

the occurrence of infringing 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 licence from the Ministry of International Trade and industry or other

approval from another government agency.

●These products are intended for general use in electronic equipment. When using them in specific applications that require extremely high reliability

such as applications stated below, it is required to obtain the 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 code and marking will still remain as previously identified prior to the merger.

Due to the on going strategy of gradual unification of part numbers, please review product code and marking 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 which will be user frie ndly.

QS-9000 is an enhanced standard for quality

assurance systems formulated by leading

U.S.automobile manufacturers based on

the international ISO 9000 series.

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 re

ardin

lobal warmin

, destructio n

of the ozone layer, and global deforestation.

ISO/TS 16949 is a

lobal standard based on

QS-9000, a severe standard corres

ondin

the requirements from automobile ind ustry.

7/21/2005

Product Configuration System

32.7680kHz Crystals (Tuning Fork Crystal)

MC-156 32.7680K A-

32.7680kHz Crystal Package Type:

MC-146: 4pin “J” lead SMD, 1.4mm Height

MC-156: 4pin “J” lead SMD, 1.5mm Height

MC-206*: 4pin SOP, 2.0mm Height

Frequency

32.7680kHz

K: In kHz

Frequency Tolerance@25C

A: +/-20ppm (Standard)

Load Capacitance

A: 12.5pf

AC: 9pf

AG: 7.0pf

NOTES:

1) This product configuration guide is applicable only to 32.7680kHz

Crystals. For other frequencies, please reference the Standard kHz

Crystal Product Configuration System.

2) If you require a load capacitance other than the above listed, please

contact your EEA representative for assistance.

Packaging

Tape & Reel Qty

3: 250pcs/reel

0: 1000pcs/reel

5: 3000pcs/reel

Blank : Not RoHs Compliant

ROHS

MC-206: Not Recommended for New Designs