IEC 60068-2-27 Test Ea: Shock - Ensuring Component Performance under Non-Repetitive or Repetitive Shocks

Standard: IEC 60068-2-27: Environmental Testing – Part 2-27: Tests – Test Ea and guidance: Shock

Scope: IEC 60068-2-27 – Test Ea defines procedures to assess a product’s ability to withstand mechanical shocks—both repetitive and non-repetitive. The test is designed to reveal mechanical weaknesses, performance degradation, or accumulated damage due to shock events.

Applicable Products: This standard applies to a wide range of components and systems, including:

• Electronic control units (ECUs)
• Sensors and actuators
• Battery packs and modules
• Lighting and infotainment systems
• Enclosures and mechanical assemblies
• Other components requiring validation for mechanical strength performance

Test Procedure: In our specialized test lab, we conduct IEC 60068-2-27 Test Ea: Shock testing using advanced vibration/shock equipment to simulate real-world conditions. The test procedure includes:

• Mounting: The specimen is rigidly mounted to the shock table or fixture.
• Shock Pulse Types: The test uses defined pulse shapes (e.g., half-sine, sawtooth, trapezoidal) to simulate real-world shock conditions.
• Pulse Parameters: Shock severity is defined by peak acceleration (e.g., 50 g), pulse duration (e.g., 11 ms), and number of shocks (e.g., 3 shocks per axis for both positive and negative).
• Orientation: Shocks are typically applied in multiple directions (X, Y, Z axes).
• Monitoring: The specimen is inspected for mechanical damage and functional degradation during and after testing.

End Result: Successful completion of IEC 60068-2-27 Test Ea: Shock confirms that the product can endure mechanical shocks without structural failure or performance loss, ensuring reliability during handling, transport, and operation.

Lab Locations: Detroit (Plymouth), MI; Grand Rapids (Kentwood), MI

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