Coilcraft XAL4020 alternatives: MAZO VCMA-0420 cross-reference
The Coilcraft XAL4020 and the MAZO VCMA-0420 are both shielded, molded power inductors in a roughly 4 × 4 × 2 mm footprint with AEC-Q200 qualification. When a second source is needed, the VCMA-0420 is the MAZO series to evaluate first.
The table puts the published values side by side. A matching inductance is a starting point, not a drop-in approval: the test conditions, thermal limits and land patterns differ, so validate on your board.
Side-by-side values
| Inductance | Coilcraft part | DCR typ / max (mΩ) | Isat (A) | Irms 40 °C rise (A) | MAZO part | DCR typ / max (mΩ) | Isat typ (A) | Idc typ (A) |
|---|---|---|---|---|---|---|---|---|
| 0.22 µH | XAL4020-221ME | 5.81 / 6.40 | 18.7 | 16.8 | VCMA-0420-R22-M-1A | 5.0 / 5.6 | 18.5 | 12.0 |
| 1.0 µH | XAL4020-102ME | 13.25 / 14.60 | 8.7 | 9.6 | VCMA-0420-1R0-M-1A | 19.5 / 24.0 | 7.5 | 6.5 |
| 1.2 µH | XAL4020-122ME | 17.75 / 19.50 | 7.9 | 9.0 | VCMA-0420-1R2-M-1A | 22.0 / 27.0 | 7.0 | 6.2 |
| 1.5 µH | XAL4020-152ME | 21.45 / 23.60 | 7.1 | 7.5 | VCMA-0420-1R5-M-1A | 25.0 / 30.0 | 6.5 | 4.8 |
| 2.2 µH | XAL4020-222ME | 35.20 / 38.70 | 5.6 | 5.5 | VCMA-0420-2R2-M-1A | 42.0 / 50.0 | 5.5 | 4.2 |
Coilcraft Isat is the current for a 30% (typ) inductance drop; MAZO Isat is for an approximately 30% drop. Coilcraft Irms and MAZO Idc are the currents for a 40 °C temperature rise from 25 °C ambient. XAL4020 0.40 µH and 0.60 µH have no same-value VCMA-0420 part; MAZO offers 0.33, 0.47, 0.56 and 0.68 µH.
Series-level differences
| Parameter | Coilcraft XAL40xx | MAZO VCMA-0420 |
|---|---|---|
| Inductance test | 1 MHz, 0.1 Vrms, 0 Adc | 1 MHz, 1.0 V |
| Operating voltage | 60 V | 40 V |
| Maximum part temperature | +165 °C (ambient + rise) | 125 °C (ambient + rise) |
| Ambient range | −40 °C to +125 °C | −55 °C to +125 °C |
| Package size | 4.3 × 4.3 × 2.1 mm (XAL40xx family table) | 4.75 × 4.45 × 2.0 mm maximum |
| Qualification | AEC-Q200 | AEC-Q200 |
What to check before switching
- Peak and RMS current in your converter against Isat and the heating current.
- Part temperature: the VCMA-0420 maximum is 125 °C versus 165 °C for the XAL40xx.
- Voltage across the inductor against the 40 V VCMA-0420 rating.
- Footprint: compare both recommended land patterns; the body sizes differ.
- Efficiency and ripple at your switching frequency, measured on the real board.
- In the MAZO table, the printed MAX current columns are lower than the TYP columns; ask MAZO to confirm how to use them as design limits.
Frequently asked questions
Is MAZO VCMA-0420-R22-M-1A a drop-in replacement for XAL4020-221ME?
Not automatically. Both are 0.22 µH ±20% with similar saturation current (18.5 A vs 18.7 A), but the VCMA-0420 has a lower heating current (12.0 A vs 16.8 A), a 40 V rating vs 60 V, a 125 °C vs 165 °C part temperature limit and a different land pattern. Evaluate it on your board.
Which MAZO value replaces XAL4020-102ME (1.0 µH)?
VCMA-0420-1R0-M-1A is the same nominal value. Its DCR is higher (19.5 mΩ typ vs 13.25 mΩ) and its currents are lower, so check losses and temperature rise in your design.
Can I order MAZO VCMA-0420 samples?
Yes. MAZO power inductors are available through MST Store; open the VCMA-0420 series page or send an RFQ with your part list and quantities.
Is MST the manufacturer?
No. The parts are made by Kun Shan MAZO Tech Co., Ltd. and Coilcraft respectively. MST is a distributor of MAZO parts.
Evaluate a second source
Send your current part numbers, quantities and operating conditions. MST replies with MAZO candidates, sample availability and pricing.
Request a cross-reference quoteRelated pages
Sources
- Coilcraft XAL40xx datasheet, Document 806-1, revised 02/25/26
- MAZO VCMA-0420 datasheet, revision A4 (2025-11-26)
Values are taken from the manufacturer documents above, checked 2026-10-22. Specifications can change; confirm against the current datasheet before ordering. MST is a distributor; products are made by the manufacturers named.