MAZO 0.68 µH shielded power inductor, Idc 23 A typ.
- Inductance
- 0.68 µH
- Isat
- 32 A
- Idc
- 23 A
- DCR max
- 2.4 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-R68-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-R68-M-1A vs. this part |
|---|---|---|---|---|---|---|---|---|---|
| Würth Elektronik | 744373680068WE-LHMI 1040 | 0.68 µH | 30.6 A · 10% | 23.8 A · 40 °C | 2.7 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 |
| TDK | SPM10040T-R68M-HZRSPM10040T-HZR | 0.68 µH | 27.8 A · 20% | 19.4 A · 40 °C | 2.64 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 |
| Bourns | SRP1038WA-R68MSRP1038WA | 0.68 µH | 28 A · 30% | 31 A · 40 °C | 2.3 mΩ | 11 × 10.1 × 3.8 mm | Same footprint class | 5 × 3.4 mm, gap 5.5 mmDiffers from MAZO (1.3 mm off) | Weaker figures |
| Vishay | IHLP4040DZERR68M5AIHLP-4040DZ-5A | 0.68 µH | 24 A · 20% | 35 A · 40 °C | 2.32 mΩ | 10.8 × 10.2 × 4 mm | Same footprint class | 4.953 × 3.175 mm, gap 5.842 mmDiffers from MAZO (1.408 mm off) | Weaker figures |
What each comparison means (4)
- Würth Elektronik 744373680068 (WE-LHMI 1040): Same inductance, 0.68 µH vs MAZO 0.68 µH. Saturation current 30.6 A (10% drop) vs MAZO 32 A typ. (30% drop), rated on different bases so not directly comparable; heating current 23.8 A (40 °C rise) vs MAZO 23 A typ. (40 °C rise). DCR 2.7 mΩ max vs MAZO 2.4 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 about 3% 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.
- TDK SPM10040T-R68M-HZR (SPM10040T-HZR): Same inductance, 0.68 µH vs MAZO 0.68 µH. Saturation current 27.8 A (20% drop) vs MAZO 32 A typ. (30% drop), rated on different bases so not directly comparable; heating current 19.4 A (40 °C rise) vs MAZO 23 A typ. (40 °C rise). DCR 2.64 mΩ max vs MAZO 2.4 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 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 SRP1038WA-R68M: Same inductance, 0.68 µH vs MAZO 0.68 µH. Saturation current 28 A (30% drop) vs MAZO 32 A typ. (30% drop); heating current 31 A (40 °C rise) vs MAZO 23 A typ. (40 °C rise). DCR 2.3 mΩ max vs MAZO 2.4 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: MAZO figures are weaker, consider only with ample margin (MAZO Isat not lower, Idc about 26% 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.
- Vishay IHLP4040DZERR68M5A (IHLP-4040DZ-5A): Same inductance, 0.68 µH vs MAZO 0.68 µH. Saturation current 24 A (20% drop) vs MAZO 32 A typ. (30% drop), rated on different bases so not directly comparable; heating current 35 A (40 °C rise) vs MAZO 23 A typ. (40 °C rise). DCR 2.32 mΩ max vs MAZO 2.4 mΩ max. Body 10.8 × 10.2 × 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: MAZO figures are weaker, consider only with ample margin (Idc about 34% 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. 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-1040-1R0-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-R68-M-1A | 0.68 µH | 9 A | 7.5 A | 14 mΩ | 4.75 × 4.45 × 2 mm | $0.28 |
| VCMA-0530-R68-M-1A | 0.68 µH | 15 A | 9 A | 9.8 mΩ | 5.7 × 5.4 × 3 mm | $0.30 |
| VCMA-0630-R68-M-1A | 0.68 µH | 18 A | 16 A | 5.3 mΩ | 7.3 × 6.8 × 3 mm | $0.30 |
| VCMA-1350-R68-M-1A | 0.68 µH | 60 A | 35 A | 1.35 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-R68-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-R68-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.