Gowanda’s 121KM2503HM is a horizontally mounted, high-efficiency standoff toroidal choke designed for superior performance in demanding applications. Weighing 12 grams and measuring 22.86 × 22.86 × 12.7 mm, this component is part of the KMHM series and is suitable for surface mount technology (SMT). It is crafted for COTS+ application grade, offering an inductance of 250 µH with a direct current resistance (DCR) of 0.16 Ω and a self-resonant frequency (SRF) of 0.9 MHz. The choke supports a current rating of 2.07 A DC, with incremental current limits of 900 mA DC for a 10% inductance change and 1700 mA DC for a 20% change. It features a tolerance of ±10% and utilizes Pb termination with a Sn63Pb37 finish. The component operates efficiently across a temperature range of -55°C to +130°C, has a moisture sensitivity level (MSL) of 1, and is available in bulk packaging.
| Weight | 12 g |
|---|---|
| Dimensions | 22.86 × 22.86 × 12.7 mm |
| Series | KMHM |
| Mounting Type | SMT |
| Application Grade | COTS+ |
| Inductance (µH) | 250 |
| DCR (Ω) | 0.16 |
| SRF (MHz) | 0.9 |
| Current Rating (A DC) | 2.07 |
| INC I L (Δ10% mA DC) | 900 |
| INC I L (Δ20% mA DC) | 1700 |
| Tolerance | ±10% |
| Termination Type | Pb |
| Termination Finish | Sn63Pb37 |
| Operating Temperature | -55°C to +130°C |
| MSL | 1 |
| Packaging | Bulk |
Horizontal Mount High Efficiency Standoff Toroidal Choke
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