IEC TC 40

Capacitors and resistors for
electronic equipment

About us

We are IEC TC 40

Founded in 1954, we are the mother committee of all the electronic components committees.
Other committees, such as the Semiconductor, Connector, Inductor and Printed Board committees, were later founded in 1960.

The world would not turn without capacitors and resistors!

Electronic and electrical circuits cannot be built without capacitors or resistors. In a modern electronic circuit
each integrated circuit (IC) needs on average ten capacitors and/or resistors to function. This has created an
annual market of over 4000 billion capacitors, resistors and inductors with business value of approximately 30 billion USD.

The website will be updated regularly, for more info:

Contact us

Scope

Capacitors and resistors for electronic equipment

To prepare international standards for:

  • Capacitors, resistors, thermistors and varistors intended for use in electronic equipment.
  • Capacitors, resistors and inductors and complete electromagnetic interference (EMI) suppression filter units for EMI suppression (see note).
  • Passive integrated circuits or networks containing resistors, capacitors, inductors or their combinations. For the dimensional standardization of the final package, requirements laid down by TC 47 shall be adopted whenever possible.
  • Packaging of electronic components for automatic handling, which is an activity undertaken on behalf of all relevant component technical committees.
  • Electric double layer capacitors for use in electric and electronic equipment.

Note: In this work, use has to be made as far as possible of any relevant work of TC 51 on inductors, the CISPR on the measurement of EMI suppression characteristics and TC 77 on electromagnetic compatibility (EMC).

Liaison has also to be maintained with TC 69, TC 91, TC 108, SC34D, SC37B, SC47A and other appropriate IEC Technical Committees on the safety aspects of EMI suppression components and filter units.

TC 40 at a glance

Established in 1954, has:

0
participating members
0
observing members
0
experts from 30 countries
0
publications