Murata releases medical-grade monolithic ceramic capacitors for implanted medical devices

10/6/2015

Murata Manufacturing Co., Ltd.
President/Statutory Representative Director:
Tsuneo Murata

Overview

Murata has developed and released medical-grade monolithic ceramic capacitors for use in implanted medical devices such as cardiac pacemakers. They were developed based on high-reliability capacitor design technology, quality control and process management expertise gained by Murata in the development of markets requiring high reliability, such as the automotive market. Murata can also accommodate individual requests from customers.
Murata will exhibit the new products at CEATEC® JAPAN 2015, which will be held from October 7 (Wed.) to 10 (Sat.) at Makuhari Messe.

Background

Since medical devices such as cardiac pacemakers are designed to be implanted in the patient’s body, achieving greater compactness in order to reduce the burden on the patient (reducing invasiveness) is an important issue. Demand for greater compactness has continued to increase and in response, Murata has developed and released medical-grade monolithic ceramic capacitors suitable for use in implanted medical devices and featuring compact size, high capacitance and high reliability. By enabling high-density design, they will contribute to the creation of even more compact implanted medical devices.

Features

GCH series

  • A medical-grade series with a highly reliable design suitable for use in implanted medical devices.
  • Suitable for use in non-critical circuits.*1

GCR series

  • A series produced by individual screening of GCH series devices.
  • Suitable for use in critical circuits.*2

*1 Non-critical circuits: Circuits in implanted medical devices that will not directly endanger the life of the patient should the functionality of the device be reduced or halted by failure of the circuit. 
*2 Critical circuits:
Circuits in implanted medical devices that will directly and immediately endanger the life of the patient in case of failure.

Applications

Implanted medical devices (cardiac pacemakers, cochlear implants, insulin pumps, gastric electrostimulators, etc.) 

Part number

Click here to view the GCH series product lineup.

Electric characteristics

  GCH series and GCR series
Temperature characteristics (EIA) X7*
C0G
Rated voltage
Up to 100 Vdc
Capacitance deviation
±0.05 pF, ±0.1 pF, ±0.25 pF, ±0.5 pF, ±0.5%,
 ±1%, ±2%, ±5%, ±10%, ±20%
Operating temperature range
-55 to 125°C (X7,* C0G)


External size

LW size
0402 size: 1.0 x 0.5 mm (T = 0.2, 0.25, 0.3, 0.5 mm)
0603 size: 1.6 x 0.8 mm (T = 0.5, 0.8 mm)
0805 size: 2.0 x 1.25 mm (T = 0.6, 0.85, 1.0, 1.25 mm)
1206 size: 3.2 x 1.6 mm (T = 0.85, 1.15, 1.2, 1.6 mm)
1210 size: 3.2 x 2.5 mm (T = 0.85, 1.0, 1.15, 1.35, 1.6, 1.8, 2.0, 2.5 mm)


Production

  • GCH series: In mass production since April 2015.
  • GCR series: Scheduled to begin mass production within the year.

Murata in Brief

Murata Manufacturing Co., Ltd. is a worldwide leader in the design, manufacture and sale of ceramic-based passive electronic components & solutions, communication modules and power supply modules. Murata is committed to the development of advanced electronic materials and leading edge, multi-functional, high-density modules. The company has employees and manufacturing facilities throughout the world. For more information, visit Murata's website at www.murata.com