HA42A6B211

The HA42A6B211 is a precision-engineered power inductor from Danaher within the Timers and Controllers series, designed for demanding industrial automation applications. This Type: Power Inductor features a compact Dimensions of 4.3 x 4.2 x 2.0 mm, offering a space-saving solution for dense PCB layouts. Constructed with a high-performance Core Material of ferrite, it delivers an inductance of Inductance 210 µH with a tight Tolerance of ±20%, ensuring stable energy storage and filtering. The inductor’s Mounting Type surface-mount design simplifies automated assembly processes and reduces overall system footprint. With a rated current of Rated Current 0.27 A, it balances current handling and thermal efficiency for consistent performance in power conversion modules.

This inductor’s electrical characteristics underscore its technical excellence: the Dc Resistance (dcr) is specified at a maximum of 1.36 Ω to minimize power losses under continuous load. It sustains a Saturation Current of 0.32 A, maintaining inductance performance under elevated current conditions. The device exhibits a Self-resonant Frequency of 2.0 MHz, making it suitable for high-frequency switching applications and EMI suppression. The shielded design, indicated by Shielding, reduces electromagnetic interference and crosstalk, enhancing signal integrity in sensitive industrial control circuits. Together, these features deliver a stable inductive response across a wide range of operating conditions.

Operational features of the HA42A6B211 emphasize reliability and robustness. Its Operating Temperature Range from –40°C to +85°C allows deployment in harsh factory environments with fluctuating ambient temperatures. The ferrite core’s low core loss characteristics reduce heat generation, while the surface-mount footprint facilitates efficient thermal dissipation into the PCB. The ±20% tolerance on inductance guarantees predictable filter performance, and the shielded construction minimizes stray magnetic fields, protecting adjacent circuitry from interference. Furthermore, the low DC resistance contributes to higher efficiency and lower thermal stress during prolonged operation.

Integration of the HA42A6B211 into power supplies, DC–DC converters, and switching regulators is straightforward, thanks to its standardized surface-mount form factor and proven reliability. The compact 4.3 x 4.2 x 2.0 mm package allows designers to densely populate control boards while maintaining high-frequency filtering performance. In industrial automation systems, these inductors are ideal for smoothing current ripple, attenuating EMI, and stabilizing voltage rails. Whether used in PLC power modules, motor drives, or instrumentation power filters, the HA42A6B211 delivers consistent, high-quality performance to meet rigorous application demands.