Hammond 1537N 500uH 3.2A High Current Ferrite Core RF Choke

The 1537N is a high current R.F. choke from the 1537 Series, specified at 500 uH with a tight +/-5% tolerance and a maximum DC current of 3.2 A. The part page describes it as an RF choke, heavy duty hash choke, suited to designers who need a leaded choke with a defined minimum Q.

Other 1537 parts sharing the 3.2 A rating are the 1537J, which differ in inductance (50 uH). Its nearest inductance neighbours in the series are the 1537M below it (250 uH, 5 A) and the 1537P above it (750 uH, 2 A), so the 1537N fills the 500 uH step at 3.2 A.

Key electrical values for the 1537N: DC resistance of 0.26 ohms and a minimum Q of 11.6, with inductance tested at 1 kHz. The large ferrite core provides an extended saturation point, and the series lists an optimum frequency range of .01-2 MHz.

• Coil diameter: 0.65 in (17 mm)
• Core length: 1.25 in
• Leads: 1.5 in (+/- 0.1 in), 20 gauge lead diameter
• Operating temperature: -55 C to +135 C

The coil is covered with a vinyl insulation shrink sleeve. The part is RoHS and REACH compliant, ships at 0.05 lbs (0.02 kg), and carries UPC 623980299709 and UNSPSC 39121301.