Capacitors

Capacitors Selection Guide

Product Map (Capacitance - Rated Voltage)

TDK has an extensive lineup of various capacitor types, which can support a wide range of capacitance and voltage values. Details can be viewed by clicking on the product types.

Capacitors Selection Guide

Comparison of features in main capacitors

The features of ceramic capacitors, aluminum electrolytic capacitors, and film capacitors vary as indicated below due to their differing dielectric materials and structures.

Items Ceramic Capacitors Aluminum Electrolytic Capacitors Film Capacitors
Ceramic Capacitors Aluminum Electrolytic Capacitors Film Capacitors
Large capacitance  
Temperature characteristics ✔*1  
DC bias characteristics ✔*1
Lifespan  
Moisture/Heat resistance  
Self-healing    
Compact size    

*1 Type1 (temperature compensating) only

Features of each capacitor

The following is a list of the capacitor types in TDK's lineup and each of their features. Their details can be viewed by clicking on them.

Category Features
Ceramic Capacitors SMD Type Our compact SMD type capacitors with laminated dielectric ceramics possess outstanding high-frequency characteristics and heat resistance. They can be broadly divided into 2 types depending on their dielectrics: Type 1 products (temperature compensating) feature extremely small changes in capacitance due to temperature, while Type 2 products (high dielectric constants) are able to support relatively large capacitance values, but have larger rates of change due to temperature than Type 1.
Lead Type These are laminated ceramic chip capacitors bonded to lead wires and coated with resin. They combine the characteristics of laminated ceramic chip capacitors with benefits such as reduced mechanical and thermal stress due to their lead wires, and insulation and temperature shielding effects due to their resin coating. They are also effective in measures against capacitor "singing".
These are disc-shaped ceramic capacitors with lead wires, able to support medium to high voltages up to 6 kV. Their outer resin coating is compliant with halogen-free specifications, and their lineup includes a safety standardized product series which has obtained safety standard certifications from various countries, as well as a series compliant with the AEC-Q200 standard required for passive components in automotive applications.
Aluminum Electrolytic Capacitors Aluminum Electrolytic Capacitors These capacitors use an aluminum oxide film and electrolyte solution, featuring large capacitance but also having properties of polarity. TDK offers a varied lineup of aluminum electrolytic capacitors which includes radial lead, axial lead, screw terminal, and snap-in terminal types.
Film Capacitors The most common type of film capacitors. They use polyethylene-terephthalate as their dielectric, allowing them to cover a range of low voltages from 50 to 100 V, with high capacity volume density.
Using polypropylene as their dielectric, these capacitors have extremely small dielectric loss tangents (tanδ). They have low self-heating even at large currents, with high insulation resistance.
Ultra High Voltage Ceramic Capacitors Ultra High Voltage Ceramic Capacitors These are ceramic capacitors which can support ultra-high voltages up to 50 kV. Their use of paraelectric ceramics makes them highly stable and reliable with regard to voltage. They also have excellent mechanical strength due to their simple structure.
CeraLink™ Capacitors CeraLink™ Capacitors Developed to stabilize the voltage of DC link circuits, our CeraLink™ capacitors are remarkably compact with PLZT (lead lanthanum zirconium titanate) ceramics as their base materials. They show exceptionally low ESL (Equivalent Series Inductance) values and also have superb heat resistance.
Electric Double-Layer Capacitors
(EDLC / Supercapacitors)
Electric Double-Layer Capacitors (EDLC / Supercapacitors) EDLCs are special capacitors with characteristics between those of a capacitor and a battery (secondary battery). By causing ions to adhere to the surface of activated carbon electrodes which have been soaked in electrolyte solution, an Electric Double Layer is formed to accumulate electric charge, giving these power storage devices extraordinarily large capacitance and energy density.