VCMA-1040-3R3-M-1A
MAZO 3.3 µH shielded power inductor, Idc 11.5 A typ.
- Inductance
- 3.3 µH
- Isat
- 17 A
- Idc
- 11.5 A
- DCR max
- 11.8 mΩ
- Brand
- MAZO
- Series
- VCMA-1040
- Size
- 11.5 × 10.3 × 4 mm
- Category
- MAZO power inductors
- Related applications
- Automotive / OBC
- Features
- AEC-Q200Magnetic shieldRoHSHalogen free
- Stock
- Factory stock
Manufacturer series image
Specifications
BrandMAZO / Mazotech
SeriesVCMA-1040
Inductance L03.3 µH ±20% (1 MHz, 1.0 V)
DCR typ.10 mΩ
DCR max.11.8 mΩ
Heating current Idc typ.11.5 A
Heating current Idc max.11 A
Saturation current Isat typ.17 A
Saturation current Isat max.16 A
Rated voltage max.75 V
Package11.5 × 10.3 × 4.0 mm max
Operating temperature-55 °C to +125 °C (ambient plus self-temperature rise)
Magnetic constructionMagnetically shielded, low EMI
QualificationAEC-Q200 qualified; RoHS compliant; halogen free
Packaging500 pieces/reel
ApplicationsAutomotive applications
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-1040-3R3-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-1040-3R3-M-1A vs. this part |
|---|---|---|---|---|---|---|---|---|---|
| Würth Elektronik | 74437368033WE-LHMI 1040 | 3.3 µH | 15.6 A · 10% | 11.1 A · 40 °C | 11.8 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 |
| Cyntec | VCMT104T-3R3MN53MVCMT104T MN53M | 3.3 µH | 12 A · 20% | 11 A · 40 °C | 11.8 mΩ | 10.85 × 10 × 3.8 mm | Same footprint class | 3.251 × 3.124 mm, gap 5.817 mmDiffers from MAZO (1.535 mm off) | Figures qualify; check the pads |
| TDK | SPM10040T-3R3MSPM10040T | 3.3 µH | 11 A · 20% | 9.8 A · 40 °C | 11 mΩ | 10.7 × 10 × 4 mm | Same footprint class | 4.8 × 3.8 mm, gap 6.1 mmDiffers from MAZO (0.7 mm off) | Figures qualify; check the pads |
| TDK | SPM10040T-3R3M-HZRSPM10040T-HZR | 3.3 µH | 12.7 A · 20% | 11.1 A · 40 °C | 11 mΩ | 10.7 × 10 × 4 mm | Same footprint class | 4.8 × 3.8 mm, gap 6.1 mmDiffers from MAZO (0.7 mm off) | Figures qualify; check the pads |
| Vishay | IHLP4040DZER3R3M01IHLP-4040DZ-01 | 3.3 µH | 18.6 A · 20% | 10 A · 40 °C | 14.4 mΩ | 10.8 × 10.16 × 4 mm | Same footprint class | 3.251 × 3.124 mm, gap 5.817 mmDiffers from MAZO (1.535 mm off) | Figures qualify; check the pads |
| Vishay | IHLP4040DZER3R3M5AIHLP-4040DZ-5A | 3.3 µH | 12 A · 20% | 11 A · 40 °C | 11.81 mΩ | 10.8 × 10.2 × 4 mm | Same footprint class | 3.251 × 3.124 mm, gap 5.817 mmDiffers from MAZO (1.535 mm off) | Figures qualify; check the pads |
| Bourns | SRP1040VA-3R3MSRP1040VA | 3.3 µH | 18 A · 30% | 15 A · 40 °C | 11.8 mΩ | 11 × 10 × 3.8 mm | Same footprint class | 3.5 × 3.55 mm, gap 5.4 mmDiffers from MAZO (1.1 mm off) | With margin; check the pads |
What each comparison means (7)
- Würth Elektronik 74437368033 (WE-LHMI 1040): Same inductance, 3.3 µH vs MAZO 3.3 µH. Saturation current 15.6 A (10% drop) vs MAZO 17 A typ. (30% drop), rated on different bases so not directly comparable; heating current 11.1 A (40 °C rise) vs MAZO 11.5 A typ. (40 °C rise). DCR 11.8 mΩ max vs MAZO 11.8 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 equal). 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.
- Cyntec VCMT104T-3R3MN53M (VCMT104T MN53M): Same inductance, 3.3 µH vs MAZO 3.3 µH. Saturation current 12 A (20% drop) vs MAZO 17 A typ. (30% drop), rated on different bases so not directly comparable; heating current 11 A (40 °C rise) vs MAZO 11.5 A typ. (40 °C rise). DCR 11.8 mΩ max vs MAZO 11.8 mΩ max. Body 10.85 × 10 × 3.8 mm vs MAZO 11.5 × 10.3 × 4 mm, MAZO 0.2 mm taller. Land pattern differs from MAZO's: two 3.251 × 3.124 mm pads 5.817 mm apart vs MAZO two 4.1 × 4.1 mm pads 5.4 mm apart (overall span differs by 1.535 mm). Verdict: the figures qualify, but the pads need checking (Idc not lower at 40 °C rise, DCR equal). 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.
- TDK SPM10040T-3R3M: Same inductance, 3.3 µH vs MAZO 3.3 µH. Saturation current 11 A (20% drop) vs MAZO 17 A typ. (30% drop), rated on different bases so not directly comparable; heating current 9.8 A (40 °C rise) vs MAZO 11.5 A typ. (40 °C rise). DCR 11 mΩ max vs MAZO 11.8 mΩ max. Body 10.7 × 10 × 4 mm vs MAZO 11.5 × 10.3 × 4 mm. Land pattern differs from MAZO's: two 4.8 × 3.8 mm pads 6.1 mm apart vs MAZO two 4.1 × 4.1 mm pads 5.4 mm apart (pad width differs by 0.7 mm). Verdict: the figures qualify, but the pads need checking (Idc not lower at 40 °C rise, DCR slightly higher). 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.
- TDK SPM10040T-3R3M-HZR (SPM10040T-HZR): Same inductance, 3.3 µH vs MAZO 3.3 µH. Saturation current 12.7 A (20% drop) vs MAZO 17 A typ. (30% drop), rated on different bases so not directly comparable; heating current 11.1 A (40 °C rise) vs MAZO 11.5 A typ. (40 °C rise). DCR 11 mΩ typ vs MAZO 10 mΩ typ. Body 10.7 × 10 × 4 mm vs MAZO 11.5 × 10.3 × 4 mm. Land pattern differs from MAZO's: two 4.8 × 3.8 mm pads 6.1 mm apart vs MAZO two 4.1 × 4.1 mm pads 5.4 mm apart (pad width differs by 0.7 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. Both parts are AEC-Q200.
- Vishay IHLP4040DZER3R3M01 (IHLP-4040DZ-01): Same inductance, 3.3 µH vs MAZO 3.3 µH. Saturation current 18.6 A (20% drop) vs MAZO 17 A typ. (30% drop), rated on different bases so not directly comparable; heating current 10 A (40 °C rise) vs MAZO 11.5 A typ. (40 °C rise). DCR 14.4 mΩ max vs MAZO 11.8 mΩ max. Body 10.8 × 10.16 × 4 mm vs MAZO 11.5 × 10.3 × 4 mm. Land pattern differs from MAZO's: two 3.251 × 3.124 mm pads 5.817 mm apart vs MAZO two 4.1 × 4.1 mm pads 5.4 mm apart (overall span differs by 1.535 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.
- Vishay IHLP4040DZER3R3M5A (IHLP-4040DZ-5A): Same inductance, 3.3 µH vs MAZO 3.3 µH. Saturation current 12 A (20% drop) vs MAZO 17 A typ. (30% drop), rated on different bases so not directly comparable; heating current 11 A (40 °C rise) vs MAZO 11.5 A typ. (40 °C rise). DCR 11.81 mΩ max vs MAZO 11.8 mΩ max. Body 10.8 × 10.2 × 4 mm vs MAZO 11.5 × 10.3 × 4 mm. Land pattern differs from MAZO's: two 3.251 × 3.124 mm pads 5.817 mm apart vs MAZO two 4.1 × 4.1 mm pads 5.4 mm apart (overall span differs by 1.535 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. Both parts are AEC-Q200.
- Bourns SRP1040VA-3R3M: Same inductance, 3.3 µH vs MAZO 3.3 µH. Saturation current 18 A (30% drop) vs MAZO 17 A typ. (30% drop); heating current 15 A (40 °C rise) vs MAZO 11.5 A typ. (40 °C rise). DCR 11.8 mΩ max vs MAZO 11.8 mΩ max. Body 11 × 10 × 3.8 mm vs MAZO 11.5 × 10.3 × 4 mm, MAZO 0.2 mm taller. Land pattern differs from MAZO's: two 3.5 × 3.55 mm pads 5.4 mm apart vs MAZO two 4.1 × 4.1 mm pads 5.4 mm apart (overall span differs by 1.1 mm). Verdict: replaceable with design margin, pads need checking (MAZO Isat about 6% lower, Idc about 23% lower at 40 °C rise, DCR equal). 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.
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 |
|---|---|---|---|---|---|---|
| VCMA-1040-R22-M-1A | 0.22 µH | 70 A | 37 A | 0.8 mΩ | 4 mm | $0.52 |
| 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-1040-4R7-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-0420-3R3-M-1A | 3.3 µH | 4.5 A | 3.3 A | 82 mΩ | 4.75 × 4.45 × 2 mm | $0.23 |
| VCMA-0530-3R3-M-1A | 3.3 µH | 7.5 A | 4.8 A | 37 mΩ | 5.7 × 5.4 × 3 mm | $0.27 |
| VCMA-1350-3R3-M-1A | 3.3 µH | 24 A | 16 A | 6.9 mΩ | 13.8 × 12.9 × 5 mm | $0.75 |
| VCMA-1365-3R3-M-1A | 3.3 µH | 25 A | 22 A | 4.5 mΩ | 13.8 × 12.9 × 6.5 mm | $0.79 |
Buy
Unit price · USD / piece$0.55For 5 pieces
Quantity pricingSelect a tier to set the quantity.
| Quantity | Unit price | Extended |
|---|---|---|
| 5–49 | $0.55 | $2.75 |
| 50–149 | $0.4 | $20.00 |
| 150–499 | $0.32 | $48.00 |
| 500–2999 | $0.249 | $124.50 |
Merchandise subtotal$2.75Item amount only; excludes packaging, handling, shipping, duties and tax. Packaging and handling charges are shown in the cart. Shipping, duties and tax are confirmed separately.
- Minimum order
- 5 pieces
- Order multiple
- 1 piece
- Availability
- Factory stock
- Dispatch preparation
- 2 days
Ships from ChinaShipping: DHL ExpressChoose a delivery country to see the transit estimate.
Dispatch preparation and shipping transit are separate. Arrival is estimated; the confirmed route and shipment tracking determine delivery.
PackagingFor the selected quantity
- Standard full-reel quantity
- 500 pieces
- Packed as
- Cut tape · 5 pieces
- Cut-tape fee
- None
- Online order limit
- 2999 pieces
Packaging and handling charges are shown in the cart. Shipping, duties and tax are confirmed separately.
Add this quantity to your cart to review order charges and the available payment steps. Sign in if prompted.
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-1040-3R3-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-1040-3R3-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.