Gowanda’s 121KM2503SM is a wirewound toroidal inductor designed for high reliability and performance in electronic applications. With a weight of 14.5 grams and compact dimensions of 23.88 × 23.88 × 12.95 mm, it belongs to the KMSM series and is suitable for surface mount technology (SMT). This component is crafted for COTS+ application grade, offering an inductance of 250 µH, a direct current resistance (DCR) of 0.16 Ω, and a self-resonant frequency (SRF) of 1 MHz. It supports a current rating of 2.07 A DC, with incremental current levels of 900 mA DC for a 10% inductance change and 1700 mA DC for a 20% change. The inductor features a tolerance of ±10% and utilizes leaded (Pb) termination with a Sn63Pb37 finish. It operates efficiently across a temperature range of -55°C to +130°C, has a moisture sensitivity level (MSL) of 1, and is available in tape and reel (T&R) packaging for ease of handling and installation.
| Weight | 14.5 g |
|---|---|
| Dimensions | 23.88 × 23.88 × 12.95 mm |
| Series | KMSM |
| Mounting Type | SMT |
| Application Grade | COTS+ |
| Inductance (µH) | 250 |
| DCR (Ω) | 0.16 |
| SRF (MHz) | 1 |
| 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 | T&R |
Wirewound Toroidal Inductor
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