Coilcraft XAL vs MAZO VCMA power inductors: a value-by-value cross-reference for XAL4020, XAL4030 and XAL6030

Short answer: For the inductance values the two families share, the closest MAZO candidate for a Coilcraft XAL4020 or XAL4030 is the VCMA-0420 series, and for an XAL6030 it is the VCMA-0630 series. The pairs below have the same nominal inductance, but they are not drop-in equivalents. The MAZO parts have a larger footprint, a 40 V or 75 V rating instead of 60 V, a 125 °C instead of 165 °C part limit, and different test conditions. Use the tables to shortlist a candidate, then verify it on your board.

Coilcraft and Kun Shan MAZO Tech Co., Ltd. make these parts. MST distributes the MAZO parts and is not a manufacturer. Coilcraft values come from the XAL40xx datasheet (Document 806, revised 02/25/26) and the XAL60xx datasheet (Document 887, revised 02/25/26). MAZO values come from the VCMA-0420 datasheet (revision A4) and the VCMA-0630 datasheet (revision A2).

Below, compare the Coilcraft Irms (40 °C rise) with the MAZO Idc (40 °C rise), because both use the same temperature-rise basis.

How to read it: at 0.22 µH the VCMA-0420 matches on saturation and has a lower DCR, but its heating current is lower (12.0 A against 16.8 A). From 1.0 µH up, the VCMA-0420 has a higher DCR and lower currents. The XAL4030 values come from a taller body than the 2.0 mm VCMA-0420, so the gap is widest there. A 0.40 µH or 0.60 µH XAL4020 has no same-value VCMA-0420. The nearest values are 0.47 µH (R47) and 0.68 µH (R68), which change the inductance and must be checked in your control loop.

At 2.2 µH and 3.3 µH the two families are close on DCR and heating current. At 0.56 µH and 1.0 µH the VCMA-0630 saturates noticeably earlier. XAL6030-181, -122 and -182 have no same-value VCMA-0630. The XAL6060 parts (6.1 mm maximum height) are not comparable with the 3.0 mm VCMA-0630, so we do not pair them here.

1. Check the peak inductor current against the MAZO Isat, using the worst-case column in the [VCMA-0420](/community/c/power-inductors) or VCMA-0630 series table. 2. Check RMS current against Idc, then estimate the part temperature at your worst ambient. It must stay at or below 125 °C for the MAZO part. 3. Check the input voltage against the rating. This rules out VCMA-0420 above 40 V. 4. Compare the land pattern. The MAZO bodies are larger, so a new footprint or a footprint review is usually needed. 5. Build and measure efficiency, ripple and temperature rise on your board. A datasheet alone never establishes interchangeability.

1. Coilcraft, XAL4020 product page. https://www.coilcraft.com/en-us/products/power/shielded-inductors/molded-inductor/xal/xal4020/ 2. Coilcraft, XAL4000 series data sheet. https://www.coilcraft.com/getmedia/6adcb47d-8b55-416c-976e-1e22e0d2848c/xal4000.pdf 3. MAZO, VCMA-0420 data sheet (hosted by MST). https://store.mst-sg.com/storefront/mazo-datasheets/VCMA-0420/MAZO-VCMA-0420-datasheet-A4.pdf

Send your current Coilcraft part numbers, peak and RMS current, switching frequency, input voltage and height limit through [Ask an engineer](/rfq?entry_source=ask_engineer&search_term=XAL+to+MAZO+cross-reference&quantity=1&community_path=%2Fcommunity%2Fc%2Fpower-inductors). MST replies with MAZO candidates, sample availability and pricing. For a single-part deep dive, see the [XAL4020 alternative buying guide](/buying-guides/xal4020-alternative-mazo-vcma-0420). Or post a [find-part request](/community/new?kind=part_request&mpn=XAL4020-221MEC). For parts outside this list, use a [sourcing RFQ](/services/sourcing-rfq?sourcing_mode=supplier_match).