Chokes Cylindrical Coil Forms 1531, 1532 R.F. Chokes on cylindrical coil forms with axial leads. • 1531 is wound on a 0.75” long phenolic coilform. • 1532 is wound on a 0.87” long powdered iron core. • Single layer windings for lowest winding capacitance. • Impregnated with varnish for moisture protection. • Other values are available upon request. • can be supplied with protective sleeving or encapsulant. • Lead length, 1.5”. • Lead wire gauge, #20. MECHANICAL ELECTRICAL SPECIFICATION Nominal Inductance Q Min. Test Freq. Self Res. Freq. Min. DCR Max. 1531 L 1531 R 2.4 µH 10 µH 56 36 7.9 MHz 7.9 MHz 120 MHz 61 MHz 0.19 Ω 1.50 Ω 1532 A 1532 B 1532 C 10 µH 15 µH 24 µH 69 62 65 2.5 MHz 2.5 MHz 2.5 MHz 40 MHz 33 MHz 25 MHz 0.11 Ω 0.17 Ω 0.34 Ω 1532 D 1532 E 1532 H 30 µH 55 µH 100 µH 70 72 107 2.5 MHz 2.5 MHz 0.790 MHz 20 MHz 17 MHz 12 MHz 0.65 Ω 1.00 Ω 3.00 Ω Rated Current Max. Dia (D) Max. Inch Length (L) ± 0.031 Inch 1500 mA 500 mA 0.270 0.270 0.75 0.75 1500 mA 1000 mA 800 mA 0.290 0.290 0.290 0.87 0.87 0.87 600 mA 500 mA 400 mA 0.290 0.290 0.290 0.87 0.87 0.87 ISSUE A 1531, 1532 91/02/18 Part No. An ISO 9001 Registered Company 229 Colonnade Road, Nepean, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com