# Crystal, MC-306, 32.768 kHz, 20 ppm, 6 pF
**URL**: https://novapart.co/products/Q13MC30610006/crystal-mc-306-32768-khz-20-ppm-6-pf
**SKU**: Q13MC30610006
**Manufacturer**: EPSON
**Category**: Crystals & Oscillators || Crystals
**Price**: €0.8670
**Stock**: 1000+
**Lead Time**: 127 days (indicative)
## Description
Frequency Nom:32.768kHz; Crystal Case:SMD, 8mm x 3.8mm; Frequency Stability + / -:-; Load Capacitance:6pF; Frequency Tolerance + / -:20ppm; Product Range:MC-306 Series; Operating Temper
## Specifications
| Parameter | Value |
|---|---|
| Svhc | Lead (16-Jul-2019) |
| No. Of Pins | 4Pins |
| Frequency Nom | 32.768kHz |
| Product Range | MC-306 |
| Crystal Mounting | SMD |
| Load Capacitance | 6pF |
| Crystal Frequency | 32.768kHz |
| Crystal Case / Package | SMD, 8mm x 3.8mm |
| Frequency Stability + / - | - |
| Frequency Tolerance + / - | 20ppm |
| Operating Temperature Max | 85°C |
| Operating Temperature Min | -40°C |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:2428514/)
**==> picture [534 x 813] intentionally omitted <==**
**----- Start of picture text -----**
Crystal unit
ja SEIKO EPSON CORPORATION
Product Number (please contact us)
MC-306 : Q1xMC3062xxxx00
kHz RANGE CRYSTAL UNIT MC-405 : Q1xMC4052xxxx00
MC-406 : Q1xMC4062xxxx00
SMD
-
MC 306
MC - 405 / MC - 406
Frequency range : 32.768 kHz (20 kHz to 120 kHz)
Thickness : 8.0 × 3.8 × 2.54 mm ···MC-306
Actual size
10.41 × 4.06 × 3.6 mm ···MC-405 / 406
Overtone order : Fundamental MC-306 MC-405 / 406
Applications : Clock and Microcomputer
oe
ne Specifications (characteristics)
Item Symbol Specifications Conditions / Remarks
Nominal frequency range f_nom 32.768 kHz 20 kHz to 120 kHz Please contact us about available frequencies.
Storage temperature T_stg -55 C to +125 C Storage as single product.
Operating temperature T_use -40 C to +85 C
Level of drive DL 1.0 W Max.
Frequency tolerance (standard) f_tol 20 10 [-6] , 50 10 [-6] 50 10 [-6] , 100 10 [-6] +25 C, DL=0.1 W
Turnover temperature Ti +25 C 5 C
Parabolic coefficient B -0.04 10 [-6] / °C [2] Max.
Load capacitance CL 6 pF to (standard :12.5 pF) Please specify
Motional resistance (ESR) R1 50 k Max. As per table below
Motional capacitance C1 2.0 fF Typ. 1.8 fF Typ. 4.0 fF to 0.6 fF MCMC--405306 / 406
Shunt capacitance C0 0.85 pF Typ. 0.9 pF Typ. 2.0 pF to 0.6 pF MCMC--306 405 / 406
Frequency aging f_age 3 10 [-6] / year Max. 5 10 [-6] / year Max. +25 C, First year
Motional resistance (ESR)
Frequency 20 kHzf_nom< 31.2 kHz 31.2 kHzf_nom< 40 kHz 40 kHzf_nom< 90 kHz 90 kHzf_nom120 kHz
Se Motional resistance 55 k Max. 35 k Max. 20 k Max. 12 k Max.
———
. | External dimensions (Unit:mm)
Internal connection in MC-405
MC-306 MC-405 / 406 (TOP VIEW)
8.0 Max.
#4 #3
#4 #3
Internal connection (TOP VIEW) #4 32.768 k #3 # 1 #2
32.768 k #4 #3 E 6571A Internal connection in MC-406
E 571 #1 #2 (TOP VIEW)
#4 #3
9.60
#1 #2 #1 #2 10.41 Max. #1 #2
0.5
5.5 1.9 0.51 0.51
=—5 =
(0.9) (0.9) 2.54 2.54 2.29
Do not connect #2 and #3 to external device.
The metal case inside of the molding compound may be exposed on the top or bottom of this product. Do not connect #2 and #3 of MC-406 to external device.
This purely cosmetic and does not have any effect on quality, reliability or electrical specs. The first digit of No. means: 5×××× MC-405
6×××× MC-406
| Footprint (Recommended) (Unit:mm)
MC-306 MC-405 MC-406
4.1 3.9 4.1
4.1 3.9 4.1
TT]rP| ossf +
1.3 4.2 1.3
|_|. —___.|._] +
ee
3.2 4.06 Max.
3.8 Max.
2.38 3.15
2.54 Max. 3.6 Max.
0.2 Min.
1.52
1.9
4.1 0.8
1.52
1.3
1.9
**----- End of picture text -----**
## **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 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.
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. wit/£',~,
(mn **WORKING FOR HIGH QUALITY** In order provide high quality and reliable products and services than meet customer needs, Seiko Epson made early efforts towards obtaining ISO9000 series 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.
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.) —— ►The products have been designed for high reliability applications such as Automotive. For Automotive ~~< eee~~
## 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
## Links
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- [Supplier page](https://es.farnell.com/epson/q13mc30610006-mc-306-32-768khz-6-0pf/crystal-mc-306-32-768-khz-6-pf/dp/2428514)
---
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