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

2015-10-06

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.

무라타에 대해서

주식 회사 무라타 제작소는 기능성 세라믹을 기반으로 전자 디바이스의 연구 개발 • 생산 • 판매를 행하고 있으며, 재료부터 제품까지 일관 생산 체제를 구축하고 있습니다. 또한, 무라타 제품의 90%이상은 해외에서 판매되고 있으며, 국내외로 글로벌 회사를 전개하고 있습니다.