Hammond 1537P 750uH 2A High Current Ferrite Core RF Choke

The 1537P is a high current R.F. choke from the 1537 Series, specified at 750 uH with a tight +/-5% tolerance and a maximum DC current of 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 2 A rating are the 1537K, which differ in inductance (75 uH). Its nearest inductance neighbours in the series are the 1537N below it (500 uH, 3.2 A) and the 1537R above it (1000 uH, 1.25 A), so the 1537P fills the 750 uH step at 2 A.

Key electrical values for the 1537P: DC resistance of 0.465 ohms and a minimum Q of 10, 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: 0.61 in (15 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 623980299907 and UNSPSC 39121301.