MLCCs - Multilayer Ceramic Capacitors

MLCCs- Multilayer Ceramic Capacitors

Multilayer ceramic capacitors are commonly known as MLCCs they comprise of alternating layers of ceramic material and metal conducting layers. The ceramic layers insulate the capacitor, reducing the loss of energy in the form of heat. These capacitors have high thermal stability, high ripple current capability and also extremely low ESR (equivalent series resistance) and ESL (Equivalent Series Inductance)

MLCCs come in standard case sizes i.e. 0402, 0805, 1206 etc. This code is international and in common use. The capacitance of MLCC chips depends on the dielectric, the size and the required voltage. Automotive grades available (AEC-Q200).

What are MLCC capacitors used for?

MLCCs are the most common type of capacitor and can be found in a range of applications, such as robot parts. The type of ceramic material defines the electrical behaviour and therefore the potential application.

Types of MLCC

There are two different types of multilayer ceramic capacitors.

Class 1 MLCCs are known to be highly stable, accurate and have low losses. They offer the most reliable voltage, temperature, and frequency. Class 1 capacitors are commonly found in resonant circuits such as radios.

Class 2 MLCCs have a highly permittive dielectric which gives better volumetric efficiency. However they have lower accuracy and stability than Class 1 capacitors and are better suited to bypass, coupling and decoupling applications, or for frequency discriminating circuits.


  • - Power Supply

  • - DC/DC convertor

  • - Telecommunications

  • - Medical Equipment

  • - Switch mode power supply

  • - Automotive applications

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Description Price Capacitance Voltage Package/Case Mounting Type Dielectric Tolerance Dimensions Automotive Standard Length Depth Height Diameter Series Tolerance Minus
RS Stock No. 378-700
Mfr. Part No.0805CG471J9BB
Each (In a Pack of 25)
470 pF 50 V dc 0805 (2012M) Surface Mount NP0 ±5% 2 x 1.25 x 1.35mm - 2mm 1.25mm 1.35mm - Standard -
RS Stock No. 882-9474
Mfr. Part No.B32921C3333M000
Each (In a Pack of 25)
33 nF 305 V ac, 630 V dc - - MKP ±20% 13 x 4 x 9mm - 13mm 4mm 9mm - B32921C -
RS Stock No. 172-5873
Mfr. Part No.B32921C3333M000
Each (In a Bag of 1000)
33 nF 305 V ac, 630 V dc - - - ±20% 13 x 4 x 9mm - 13mm 4mm 9mm - B32921C -
RS Stock No. 135-6263
Mfr. Part No.06035C153JAT2A
Each (In a Bag of 100)
15 nF 50 V dc 0603 (1608M) Surface Mount - - 1.6 x 0.81 x 0.9mm - 1.6mm 0.81mm 0.9mm - - -
RS Stock No. 135-3632
Mfr. Part No.06035C393KAT2A
Each (On a Reel of 4000)
39 nF 50 V dc 0603 (1608M) Surface Mount - - - - 1.6mm 0.81mm - - - -