Hammond 1538M24 50uH 15A EMI/RFI Choke, Ferrite Rod Core

The 1538M24 is an EMI/RFI choke from the 1538 series, described by the manufacturer as a heavy duty RF hash choke. It is rated 50 uH +/- 10% with a maximum DC current of 15 A, making it a practical choice for electronics designers and OEM engineers building filtering circuits or energy storage inductors.

The 1538M24 is the highest-current 50 uH choke in the 1538 series at 15 A, sharing the largest Dim. B in the series (1.00 in) with the 1538M23, and a 1.62 in maximum Dim. A. Other 50 uH values on the 1538 specification sheet are 1538M04 (5.6 A), 1538M11 (8 A) and 1538M18 (10.5 A), so compare current rating and body size when choosing.

The choke is built on a high saturation flux density ferrite rod. It has 1 in long leads, tinned to within 1/8 in of the body. The 1538 series is specified for an ambient temperature range of -60 C to +85 C.

• Inductance: 50 uH +/- 10%
• Self-resonant frequency: 3.5 MHz
• Maximum DC resistance: 0.013 ohms
• Maximum DC current: 15 A
• Maximum Dim. A: 1.62 in (41 mm); maximum Dim. B: 1.00 in (25 mm)
• Typical Dim. C: 1.12 in (28 mm); typical Dim. D: 0.08 in (2 mm)

Inductance for the 1538 series is measured at 1 kHz with 0 A DC current, and typical inductance change is less than 5% at twice rated current. The 1538M24 is RoHS and REACH compliant and has a shipping weight of 0.1 lbs (0.05 kg).