MEMS Resonator

Frequency:32.768kHz
Size (L×W×T):0.9 × 0.6 × 0.3(in mm)

Murata’s MEMS resonators are piezoelectric elements that function as mechanical resonators to generate a constant frequency.

MEMS technology was used to develop the world's smallest size resonator with very low ESR characteristics that is currently unachievable with quartz crystal resonators. Murata's MEMS resonators provide excellent frequency accuracy and stable temperature characteristics without the use of active elements to correct the initial frequency and frequency shift by temperature. This helps customers reduce power consumption, mounting space, and weight. Affinity with silicon materials also facilitates embedding in the IC.

Application Guide
Suitable for a variety of applications such as miniature low-profile devices, industrial equipment, lighting, and incorporation into ICs.
  • MEMS Resonators and Crystal Units for Small Wearable Devices
  • Application Note
  • Embedding in the IC
  • Technical Note
Ceramic Resonator

Product Search

Recommendable Part Number

Click a part number to browse detailed specifications, characteristic data, packaging data, and other information. You can request free samples on murata's website or search for stock of specific part numbers at Murata authorized agents, distributors and trading companies.

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Part Number Data
Sheet
Operating
Temperature Range
Frequency
Tolerance
Frequency
Shift by Temperature
Load
Capacitance*
Equivalent Series
Resistance
WMRAG32K76CS1C00R0 Open PDF file -30 to
+85゚C
±20ppm -150 to
+10 ppm
8pF 75kΩ
max.
WMRAG32K76CS2C00R0 Open PDF file -40 to
+85゚C
-200 to
+10 ppm
WMRAG32K76CS3C00R0 Open PDF file -40 to
+105゚C
WMRAG32K76CS4C00R0 Open PDF file -40 to
+125゚C
-270 to
+10 ppm
  • *When considering replacement from a crystal resonator, note that the load capacitance value differs for crystal resonators and MEMS resonators.

Main Feature

Space saving

This product utilizes MEMS technology and an original design to realize a compact size 65% smaller than a 1.6 × 1.0 mm crystal resonator. It also realizes an ultra-compact chip scale package (CSP) that incorporates the necessary load capacitance for the oscillation circuit. This enables a reduction of around 75% in the total oscillation circuit space needed, which helps to reduce the final set size.
In addition, the open space can also be used to increase the battery size or add other functions.

Ceramic Resonator

High reliability under high temperatures

The device supports high reliability especially in high temperature conditions because it does NOT utilize organic adhesives inside of the package.
For this reason, this device can be used in applications where good high-temperature performance is required, such as in industrial equipment and lighting.

HAST*/PCT** Test Result
[Test condition]Temperature: 120℃, Humidity: 85%, Air pressure: 1.7atm

  • Frequency drift
  • ESR drift
  • *High Accelerated Stress Test
  • **Pressure Cooker Test

Low power consumption

The low ESR characteristics can be utilized to lower the IC gain.
This enables a reduction in the current consumption of the oscillation circuit and the power consumption of the overall set.

Ceramic Resonator
  • *Compared with our products

Example of characteristics required for 32k by application

Murata's MEMS resonators feature small size, low power consumption, and high reliability. This helps to realize functions that require these characteristics, such as BLE, RTC, LPWA, and UWB.

Characteristics required for 32 kHz resonators by application, and comparison of characteristics of Murata's MEMS resonators and crystal resonators

Lightweight

Murata's MEMS resonators are much lighter weight than conventional crystal resonators, which makes them ideal for wearable applications.

Video

Murata's world smallest MEMS resonator saves space and is able to withstand temperatures up to 125°C.

Samples now available free of charge

You must register as a my Murata member to request samples.

  1. We will send you an email after your account is created. Follow the instructions in the email to complete the account registration process.
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  • *Please be aware that sample requests may occasionally be canceled for various reasons.
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Application

Application Guide

Application Guide of MEMS Resonator

Application Support

Advantages of MEMS Resonator for each applications, and product selections, related documents.

Technical Reference

Please see your required information on operating of our products.

PDF Catalog

PDF catalogs for MEMS Resonators are available at the following links:

MEMS Resonator

MEMS resonator for Consumer & Industrial (PDF: 1.0 MB)

UPDATE
9/13/2019

Product Lineup of Timing Devices (PDF: 0.5 MB)

UPDATE
4/15/2021

Timing Devices IC Matching Service Information (PDF: 0.6 MB)

UPDATE
2/27/2017

Product News