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1 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The TDK B82721K2402N020 is a current-compensated ring core double choke from the B82721 series, designed for power line common-mode interference suppression. It features a ferrite core with epoxy coating, a plastic case, and potting material, all rated UL 94 V-0. The component uses sector winding and is suitable for wave soldering.
Key electrical specifications include a rated inductance of 700 µH at 100 kHz with ±30% tolerance, a maximum current rating of 4 A, and a maximum DC resistance of 30 mOhm (typical). The rated voltage is 250 V AC, and the test voltage is 1500 V AC for 2 seconds. The operating temperature range is -40°C to +125°C, with rated temperature for current derating from +40°C to +70°C.
The choke is packaged in a vertical, 4 PC pin through-hole configuration with dimensions of 18.20 mm length, 13.20 mm width, and 20.90 mm maximum height. It has a lead spacing of 10 x 15 mm and pin size of 0.7 x 0.7 mm. The terminals are made of CuNi18Zn20 with nickel and tin plating.
This component is suitable for switch-mode power applications, electronic ballasts in lamps, and power inverters. It is approved by ENEC, UR, and VDE, and is RoHS-compatible.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.19 | $2.19 |
| 10+ | $1.80 | $1.80 |
| 25+ | $1.57 | $1.57 |
| 100+ | $1.48 | $1.48 |
| 250+ | $1.37 | $1.37 |
| 500+ | $1.26 | $1.26 |
| 720+ | $1.18 | $1.18 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The inductance is 700 µH at 100 kHz, with a tolerance of ±30% at +20°C.
The maximum current rating is 4 A, referred to 50 Hz and rated temperature.
The operating temperature range is -40°C to +125°C, with rated temperature for current derating from +40°C to +70°C.
The datasheet states the component is RoHS-compatible, but the compliance is unverified.
The package is a vertical, 4 PC pin through-hole configuration.
The DC resistance is 30 mOhm (typical).
The rated voltage is 250 V AC.