Murata has created a series of chip monolithic ceramic capacitors equipped with metal pins

Murata KCM

Overview

Murata Manufacturing Co.,Ltd. is proud to announce that it has created a series of chip monolithic ceramic capacitors which feature metal pins and which are designed to be used in automotive electronic devices.

Background

In the automotive market, the automakers, stimulated by the increasing interest focused in recent years on tackling global environmental problems and energy problems, have been pushing hard to develop hybrid electric vehicles (HEV) and electric vehicles (EV) and promote their practical use.

When chip monolithic ceramic capacitors (MLCC) - and especially large ones - are used in the automotive electronic devices installed on these HEVs and EVs, they are easily affected by the stress of the expansion and contraction of the substrates generated by sharp temperature changes, and under conditions where they will be exposed to thermal shock occurring over long periods of time, measures to deal with solder cracks are an absolute necessity. Similarly, measures to deal with cracks in the capacitor elements that form as a result of vibration and mechanical impact must also be taken, and the capacitors are required to exhibit a higher level of reliability than when they are used in general - purpose products. So providing the capacitors with metal pins that have an elastic action reduces the impact to which the capacitor elements are subjected.

Murata - KCM series

Features

  • The elastic action of the metal pins helps to reduce the amount of stress generated by thermal and mechanical impact and also makes the capacitors very reliable.
     
  • By stacking a pair of capacitors one on top of the other, less space is required for mounting, and a high level of capacitance is achieved.

Applications

DC - DC converters in automotive ECUs, etc.

Part Number*

"****" denotes a 4 - digit number provided by Murata.
 

Rated
voltage
(DC)
Length (L)
×
width (W)
(mm)
Height (T)
(mm)
Temperature
characteristics
Static
capacitance
Static
capacitance
tolerance
Murata
model number
25V
6.1×5.3
3.7±0.2
X7R
22uF
±10%
KCM55QR 71E226K****
6.4±0.3
47uF
±20%
KCM55WR 71E476M****
35V
3.7±0.2
17uF
±10%
KCM55QR 7YA176K****
6.4±0.3
33uF
±20%
KCM55WR 7YA336M****
50V
3.7±0.2
10uF
±10%
KCM55QR 71H106K****
6.4±0.3
22uF
±20%
KCM55WR 71H226M****
63V
3.7±0.2
10uF
±10%
KCM55QR 71J106K****
6.4±0.3
22uF
±20%
KCM55WR 71J226M****
100V
2.8±0.2
4.7uF
±10%
KCM55LR 72A475K****
4.8±0.2
10uF
±20%
KCM55TR 72A106M****

murata.com

1-4 Layer PCBs $2

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