Hammond 1537J 50uH 3.2A High Current Ferrite Core RF Choke

The 1537J is a high current R.F. choke from the 1537 Series, specified at 50 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 1537N, which differ in inductance (500 uH). Its nearest inductance neighbours in the series are the 1537H below it (40 uH, 5 A) and the 1537K above it (75 uH, 2 A), so the 1537J fills the 50 uH step at 3.2 A.

Key electrical values for the 1537J: DC resistance of 0.064 ohms and a minimum Q of 3.4, 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: 0.56 in (14 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 623980298900 and UNSPSC 39121301.