Gowanda’s 121AT2503H is a high-quality, reliable horizontal open construction toroidal inductor designed for demanding applications. Weighing 11 grams and measuring 21.89 × 21.89 × 10.16 mm, this component is part of the AT series and features through-hole technology (THT) for mounting. It is suitable for COTS+ application grades, offering an inductance of 250 µH with a direct current resistance (DCR) of 0.16 Ω and a self-resonant frequency (SRF) of 1 MHz. The inductor supports a current rating of 2.07 A DC, with incremental current limits of 2200 mA DC for a 10% inductance change and 3200 mA DC for a 20% change. It has a tolerance of ±10% and uses Pb termination with a Sn63Pb37 finish. The component operates within a temperature range of -55°C to +130°C, has a moisture sensitivity level (MSL) of 1, and is available in bulk packaging.
| Weight | 11 g |
|---|---|
| Dimensions | 21.89 × 21.89 × 10.16 mm |
| Series | AT |
| Mounting Type | THT |
| 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) | 2200 |
| INC I L (Δ20% mA DC) | 3200 |
| Tolerance | ±10% |
| Termination Type | Pb |
| Termination Finish | Sn63Pb37 |
| Operating Temperature | -55°C to +130°C |
| MSL | 1 |
| Packaging | Bulk |
Horizontal Open Construction Toroidal inductor
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