MAZO 0.22 µH shielded power inductor, Idc 37 A typ.
- Inductance
- 0.22 µH
- Isat
- 70 A
- Idc
- 37 A
- DCR max
- 0.8 mΩ
- Brand
- MAZO
- Series
- VCMA-1040
- Size
- 11.5 × 10.3 × 4 mm
- Category
- MAZO power inductors
- Related applications
- Automotive / OBC
- Features
- AEC-Q200RoHSHalogen free
- Stock
- Factory stock
Specifications
Datasheet facts
- Recommended land pattern
- Two 4.1 × 4.1 mm pads, 5.4 mm apart, 13.6 mm overall
- Inductance test condition
- 1 MHz, 1.0 V, 25 °C
- Current definitions
- Isat: inductance drops about 30%; Idc: temperature rise about 40 °C
- Soldering
- Reflow per J-STD-020
- Operating temperature (ambient + self-heating)
- -55 ~ +125 °C
- Storage temperature
- -55 ~ +125 °C
- Packaging
- 500 pieces per reel; tape pocket 10.7±0.10 × 12.0±0.10 × 4.5±0.10 mm
Datasheet VCMA-1040-XXX-M-1A, revision A2, 2025-11-26, page 4
Characteristic curves
Typical curves from the MAZO datasheet, for reference only.
Soldering and packaging
Alternative to these parts
VCMA-1040-R22-M-1A matches the parts below in footprint class and nominal value. Check the pads and test samples before switching.
| Brand | Part number | L | Isat | Irms | DCR max | Size | Footprint | Recommended pads | VCMA-1040-R22-M-1A vs. this part |
|---|---|---|---|---|---|---|---|---|---|
| Bourns | SRP1038A-R22MSRP1038A | 0.22 µH | 60 A · 20% | 35 A · 40 °C | 1 mΩ | 11 × 10 × 3.8 mm | Pad-compatible | 3.5 × 4.1 mm, gap 5.4 mmClose to MAZO (0.6 mm off) | Drop-in candidate |
| Würth Elektronik | 744373680022WE-LHMI 1040 | 0.22 µH | 46 A · 10% | 41.4 A · 40 °C | 1 mΩ | 11 × 10 × 3.8 mm | Pad-compatible | 3.5 × 4.1 mm, gap 5.4 mmClose to MAZO (0.6 mm off) | With design margin |
| Vishay | IHLP4040DZERR22M11IHLP-4040DZ-11 | 0.22 µH | 44 A · 20% | 33 A · 40 °C | 0.95 mΩ | 10.8 × 10.16 × 4 mm | Same footprint class | 4.953 × 3.175 mm, gap 5.842 mmDiffers from MAZO (1.408 mm off) | Figures qualify; check the pads |
What each comparison means (3)
- Bourns SRP1038A-R22M: Same inductance, 0.22 µH vs MAZO 0.22 µH. Saturation current 60 A (20% drop) vs MAZO 70 A typ. (30% drop), rated on different bases so not directly comparable; heating current 35 A (40 °C rise) vs MAZO 37 A typ. (40 °C rise). DCR 1 mΩ max vs MAZO 0.8 mΩ max. Body 11 × 10 × 3.8 mm vs MAZO 11.5 × 10.3 × 4 mm, MAZO 0.2 mm taller. Land pattern close to MAZO's: two 3.5 × 4.1 mm pads 5.4 mm apart vs MAZO two 4.1 × 4.1 mm pads 5.4 mm apart (pad width differs by 0.6 mm). Verdict: drop-in candidate (Idc not lower at 40 °C rise, DCR lower, less conduction loss). Before switching, verify brands define Isat/Irms differently: check the real peak current and allowed temperature rise, height clearance, the land pattern against both drawings and test samples. Both parts are AEC-Q200.
- Würth Elektronik 744373680022 (WE-LHMI 1040): Same inductance, 0.22 µH vs MAZO 0.22 µH. Saturation current 46 A (10% drop) vs MAZO 70 A typ. (30% drop), rated on different bases so not directly comparable; heating current 41.4 A (40 °C rise) vs MAZO 37 A typ. (40 °C rise). DCR 1 mΩ max vs MAZO 0.8 mΩ max. Body 11 × 10 × 3.8 mm vs MAZO 11.5 × 10.3 × 4 mm, MAZO 0.2 mm taller. Land pattern close to MAZO's: two 3.5 × 4.1 mm pads 5.4 mm apart vs MAZO two 4.1 × 4.1 mm pads 5.4 mm apart (pad width differs by 0.6 mm). Verdict: replaceable with design margin (Idc about 11% lower at 40 °C rise, DCR lower, less conduction loss). Before switching, verify brands define Isat/Irms differently: check the real peak current and allowed temperature rise, height clearance, the land pattern against both drawings and test samples.
- Vishay IHLP4040DZERR22M11 (IHLP-4040DZ-11): Same inductance, 0.22 µH vs MAZO 0.22 µH. Saturation current 44 A (20% drop) vs MAZO 70 A typ. (30% drop), rated on different bases so not directly comparable; heating current 33 A (40 °C rise) vs MAZO 37 A typ. (40 °C rise). DCR 0.95 mΩ max vs MAZO 0.8 mΩ max. Body 10.8 × 10.16 × 4 mm vs MAZO 11.5 × 10.3 × 4 mm. Land pattern differs from MAZO's: two 4.953 × 3.175 mm pads 5.842 mm apart vs MAZO two 4.1 × 4.1 mm pads 5.4 mm apart (overall span differs by 1.408 mm). Verdict: the figures qualify, but the pads need checking (Idc not lower at 40 °C rise, DCR lower, less conduction loss). Before switching, verify brands define Isat/Irms differently: check the real peak current and allowed temperature rise, the land pattern against both drawings and test samples.
How the figures are compared
Isat and Irms follow each datasheet's own definition, shown after the figure. MAZO figures are typical values from its spec table.
Recommended pads: pad width × pad length, then the gap between the two pads, from each datasheet, compared with MAZO's.
Same footprint, other values
Same 11.5 × 10.3 mm body, by inductance. Check the height before swapping.
| Part number | L | Isat | Idc | DCR max | Height | Unit price |
|---|---|---|---|---|---|---|
| LPCA-1040-R36-M | 0.36 µH | 50 A | 30 A | 1.2 mΩ | 4 mm | $0.53 |
| VCMA-1040-R36-M-1A | 0.36 µH | 54 A | 32 A | 1.2 mΩ | 4 mm | $0.52 |
| VCMA-1040-R47-M-1A | 0.47 µH | 45 A | 27 A | 1.7 mΩ | 4 mm | $0.52 |
| VCMA-1040-R56-M-1A | 0.56 µH | 38 A | 26 A | 1.8 mΩ | 4 mm | $0.52 |
| VCMA-1040-R68-M-1A | 0.68 µH | 32 A | 23 A | 2.4 mΩ | 4 mm | $0.52 |
| VCMA-1040-1R0-M-1A | 1 µH | 29 A | 19 A | 3.1 mΩ | 4 mm | $0.52 |
| VCMA-1040-1R5-M-1A | 1.5 µH | 27 A | 17 A | 3.8 mΩ | 4 mm | $0.52 |
| VCMA-1040-2R2-M-1A | 2.2 µH | 19 A | 14 A | 7 mΩ | 4 mm | $0.52 |
| VCMA-1040-3R3-M-1A | 3.3 µH | 17 A | 11.5 A | 11.8 mΩ | 4 mm | $0.55 |
| VCMA-1040-4R7-M-1A | 4.7 µH | 15 A | 10.5 A | 16 mΩ | 4 mm | $0.55 |
| VCMA-1040-6R8-M-1A | 6.8 µH | 12.5 A | 8 A | 25 mΩ | 4 mm | $0.55 |
| VCMA-1040-8R2-M-1A | 8.2 µH | 11 A | 7.8 A | 27 mΩ | 4 mm | $0.62 |
Same value, other sizes
Smallest first. A larger body usually carries more current; the pads differ.
| Part number | L | Isat | Idc | DCR max | Body | Unit price |
|---|---|---|---|---|---|---|
| VCMA-0420-R22-M-1A | 0.22 µH | 18.5 A | 12 A | 5.6 mΩ | 4.75 × 4.45 × 2 mm | $0.21 |
| VCMA-0630-R22-M-1A | 0.22 µH | 40 A | 24.5 A | 3 mΩ | 7.3 × 6.8 × 3 mm | $0.30 |
| VCMA-1350-R22-M-1A | 0.22 µH | 85 A | 48 A | 0.62 mΩ | 13.8 × 12.9 × 5 mm | $0.75 |
Buy
| Quantity | Unit price | Extended |
|---|---|---|
| 5–49 | $0.52 | $2.60 |
| 50–149 | $0.38 | $19.00 |
| 150–499 | $0.304 | $45.60 |
| 500–2999 | $0.236 | $118.00 |
- Minimum order
- 5 pieces
- Order multiple
- 1 piece
- Availability
- Factory stock
- Dispatch preparation
- 2 days
Dispatch preparation and shipping transit are separate. Arrival is estimated; the confirmed route and shipment tracking determine delivery.
- Standard full-reel quantity
- 500 pieces
- Packed as
- Cut tape · 5 pieces
- Cut-tape fee
- None
- Online order limit
- 2999 pieces
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Selection and use
How to select
Choosing inductance
L ≈ (Vin − Vout) × Vout ÷ (Vin × fsw × ΔI), with ΔI at 20–40% of the output current. The series covers 0.22–22 µH in one body, so changing the value needs no new layout.
Saturation current Isat
the current at which inductance falls about 30%; keep the peak current below it.
Heating current Idc
the current that raises the part about 40 °C above a 25 °C ambient; ambient plus rise stays within 125 °C.
DC resistance
sets the conduction loss. Typical 0.62–58 mΩ across the series; use the maximum for loss budgets.
Rated voltage
75 V maximum; check it against the input voltage.
Height
Max 4.0 mm. More current: VCMA-1350; smaller: VCMA-0630.
Industry and product applications
VCMA-1040-R22-M-1A is a VCMA-1040 series part for evaluation in automotive electronics.
Manufacturer-listed series applications
Automotive applications.
MAZO datasheet: VCMA-1040-XXX-M-1A, revision A2, 2025-11-26 — applications on page 1
Circuit applications to evaluate
These are series applications and engineering evaluation examples. Select VCMA-1040-R22-M-1A against the required inductance, peak and RMS current, switching frequency, temperature rise and PCB footprint. Inclusion here does not establish suitability for a particular design or qualification of the finished product.