MAZO 8.2 µH shielded power inductor, Idc 7.8 A typ.
- Inductance
- 8.2 µH
- Isat
- 11 A
- Idc
- 7.8 A
- DCR max
- 27 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
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-1040-8R2-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-1040-8R2-M-1A vs. this part |
|---|---|---|---|---|---|---|---|---|---|
| Bourns | SRP1038A-8R2MSRP1038A | 8.2 µH | 12.5 A · 20% | 8 A · 40 °C | 24 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 |
| Bourns | SRP1038WA-8R2MSRP1038WA | 8.2 µH | 9 A · 30% | 8.5 A · 40 °C | 25.3 mΩ | 11 × 10.1 × 3.8 mm | Same footprint class | 5 × 3.4 mm, gap 5.5 mmDiffers from MAZO (1.3 mm off) | Figures qualify; check the pads |
| Cyntec | VCMT104T-8R2MN53MVCMT104T MN53M | 8.2 µH | 7.1 A · 20% | 7.7 A · 40 °C | 29 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 |
What each comparison means (3)
- Bourns SRP1038A-8R2M: Same inductance, 8.2 µH vs MAZO 8.2 µH. Saturation current 12.5 A (20% drop) vs MAZO 11 A typ. (30% drop), rated on different bases so not directly comparable; heating current 8 A (40 °C rise) vs MAZO 7.8 A typ. (40 °C rise). DCR 24 mΩ max vs MAZO 27 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 3% 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, height clearance, the land pattern against both drawings and test samples. Both parts are AEC-Q200.
- Bourns SRP1038WA-8R2M: Same inductance, 8.2 µH vs MAZO 8.2 µH. Saturation current 9 A (30% drop) vs MAZO 11 A typ. (30% drop); heating current 8.5 A (40 °C rise) vs MAZO 7.8 A typ. (40 °C rise). DCR 25.3 mΩ max vs MAZO 27 mΩ max. Body 11 × 10.1 × 3.8 mm vs MAZO 11.5 × 10.3 × 4 mm, MAZO 0.2 mm taller. Land pattern differs from MAZO's: two 5 × 3.4 mm pads 5.5 mm apart vs MAZO two 4.1 × 4.1 mm pads 5.4 mm apart (overall span differs by 1.3 mm). Verdict: the figures qualify, but the pads need checking (MAZO Isat not lower, Idc about 8% 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, height clearance, the land pattern against both drawings and test samples. Both parts are AEC-Q200.
- Cyntec VCMT104T-8R2MN53M (VCMT104T MN53M): Same inductance, 8.2 µH vs MAZO 8.2 µH. Saturation current 7.1 A (20% drop) vs MAZO 11 A typ. (30% drop), rated on different bases so not directly comparable; heating current 7.7 A (40 °C rise) vs MAZO 7.8 A typ. (40 °C rise). DCR 29 mΩ max vs MAZO 27 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 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.
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-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-1040-100-M-1A | 10 µH | 9 A | 7.2 A | 30 mΩ | 4 mm | $0.62 |
| VCMA-1040-150-M-1A | 15 µH | 7.5 A | 5.7 A | 45 mΩ | 4 mm | $0.60 |
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-0630-8R2-M-1A | 8.2 µH | 5.8 A | 4.5 A | 60 mΩ | 7.3 × 6.8 × 3 mm | $0.30 |
Buy
| Quantity | Unit price | Extended |
|---|---|---|
| 5–49 | $0.62 | $3.10 |
| 50–149 | $0.45 | $22.50 |
| 150–499 | $0.364 | $54.60 |
| 500–2999 | $0.282 | $141.00 |
- 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-1040-8R2-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-1040-8R2-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.