IEC 60384-9:2024

Overview

IEC 60384-9:2024 is the sectional specification for fixed capacitors of ceramic dielectric, Class 2, intended for use in electronic equipment. As a sectional standard it defines preferred ratings, characteristics, test and measurement procedures, and the applicable quality assessment methods selected from IEC 60384-1:2021. The 2024 edition was restructured for ISO/IEC Directives compliance and adds new normative content (Annex B) and reference-temperature data at 25 °C across multiple tables.

Keywords: IEC 60384-9:2024, fixed capacitors, ceramic dielectric Class 2, capacitor specification

Key topics and technical requirements

• Scope and exclusions: Covers fixed ceramic Class 2 capacitors (including leadless types) but excludes fixed surface-mount multilayer ceramic capacitors (covered by IEC 60384-22) and EMI suppression capacitors (covered by IEC 60384-14).
• Preferred ratings and characteristics: Specifies preferred nominal capacitance values, tolerances and temperature characteristics required for Class 2 dielectrics.
• Test and measurement procedures: Defines electrical and environmental tests such as capacitance, tangent of loss angle (tan δ), insulation resistance, voltage proof, temperature characteristic measurements, solderability and robustness of terminations.
• Mechanical and environmental stresses: Includes vibration, bump, shock, climatic sequence, damp heat (steady state and cyclic), rapid temperature change and endurance testing with defined measuring and recovery steps.
• Quality assessment and conformance: Selects quality assessment procedures (primary manufacture, qualification approval, lot release and fixed-sample-size options) and includes a new clause C.5 with a test schedule for quality conformance inspection.
• Significant updates: Complete restructuring for usability, addition of 25 °C reference requirements in Tables 7, 9, 11, 13, 15; temperature characteristic tables (B.1–B.3) added; Annex B changed to normative; Clause C.5 added.

Keywords: capacitor test methods, quality conformance inspection, temperature characteristics, endurance test

Practical applications

• Specification and qualification of Class 2 ceramic capacitors for applications where dielectric temperature coefficient and aging behavior are important (power electronics, consumer electronics, industrial controls).
• Creating component detail specifications for procurement or supplier quality agreements.
• Defining test procedures for component qualification in design verification and production testing.
• Use by test laboratories to perform standardized electrical, climatic and mechanical tests.

Keywords: capacitor qualification, component specification, supplier testing

Who should use this standard

• Capacitor manufacturers and design engineers
• Component and hardware procurement teams
• Quality assurance and reliability engineers
• Test laboratories and certification bodies
• Standards committees and technical writers preparing detail specifications

Related standards

• IEC 60384-1:2021 - General definitions and quality assessment framework
• IEC 60384-22 - Fixed surface-mount multilayer capacitors of ceramic dielectric (Class 2)
• IEC 60384-14 - Capacitors for electromagnetic interference (EMI) suppression

Keywords: IEC capacitor standards, ceramic capacitors, Class 2 capacitors