Gowanda’s 121AT2503SM is a high-quality wirewound toroidal inductor designed for demanding applications. With a weight of 14.5 grams and compact dimensions of 23.88 × 23.88 × 12.95 mm, it belongs to the ATSM series and features surface-mount technology (SMT) for easy integration. This component is 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 2200 mA DC for a 10% inductance change and 3200 mA DC for a 20% change. The inductor has a tolerance of ±10% and utilizes Pb termination with a Sn63Pb37 finish. It operates reliably across a wide temperature range from -55°C to +130°C, has a moisture sensitivity level (MSL) of 1, and is available in tape and reel (T&R) packaging for efficient handling and assembly.
| Weight | 14.5 g |
|---|---|
| Dimensions | 23.88 × 23.88 × 12.95 mm |
| Series | ATSM |
| 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) | 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 | T&R |
Wirewound Toroidal Inductor
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