VCMA-0420-100-M-1A

MAZO 10 µH shielded power inductor, Idc 1.7 A typ.

Inductance: 10 µH
Isat: 2.2 A
Idc: 1.7 A
DCR max: 281 mΩ

Brand: MAZO
Series: VCMA-0420
Size: 4.75 × 4.45 × 2 mm
Category: MAZO power inductors
Related applications: Automotive / OBC
Features: AEC-Q200Magnetic shieldRoHSHalogen free
Stock: Factory stock

Manufacturer series image MAZO 10 µH shielded power inductor, Idc 1.7 A typ. — manufacturer series product image

Specifications

BrandMAZO / Mazotech

SeriesVCMA-0420

Inductance L010 µH ±20% (1 MHz, 1.0 V)

DCR typ.245 mΩ

DCR max.281 mΩ

Heating current Idc typ.1.7 A

Heating current Idc max.1.4 A

Saturation current Isat typ.2.2 A

Saturation current Isat max.2.1 A

Rated voltage max.40 V

Package4.75 × 4.45 × 2.0 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

Packaging3000 pieces/reel

ApplicationsAutomotive applications

Datasheet facts

Recommended land pattern (mm)

Recommended land pattern: Two 2.5 × 1.5 mm pads, 2.2 mm apart, 5.2 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: 3000 pieces per reel; tape pocket 4.5±0.1 × 4.8±0.1 × 2.5±0.15 mm

Datasheet VCMA-0420-XXX-M-1A, revision A4, 2025-11-26, page 4

Characteristic curves

Inductance vs DC biasCSV

Temperature rise vs currentCSV

Typical curves from the MAZO datasheet, for reference only.

Soldering and packaging

Reflow profile

Carrier tape

Reel

Alternative to these parts

VCMA-0420-100-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-0420-100-M-1A vs. this part
TDK	SPM4020T-100M-LRSPM4020T-LR	10 µH	2.3 A · 30%	1.8 A · 40 °C	284.1 mΩ	4.4 × 4.1 × 2 mm	Pad-compatible	2.3 × 1.65 mm, gap 1.65 mmClose to MAZO (0.55 mm off)	Drop-in candidate
Bourns	SRP4020TA-100MSRP4020TA	10 µH	2.3 A · 20%	1.8 A · 40 °C	243 mΩ	4.45 × 4.06 × 2 mm	Pad-compatible	2.4 × 1.5 mm, gap 2.2 mmSame as MAZO	With design margin
Coilcraft	XAL4040-103MECXAL4030 / XAL4040	10 µH	3 A · 30%	3.1 A · 40 °C	92.4 mΩ	4 × 4 × 4.1 mm	Same footprint class	3.4 × 0.98 mm, gap 1.39 mmDiffers from MAZO (1.85 mm off)	Weaker figures
Cyntec	VCHA042A-100MS62MVCHA042A MS62M	10 µH	2.4 A · 30%	2.5 A · 40 °C	129 mΩ	4.2 × 4 × 2.1 mm	Same footprint class	2.286 × 1.855 mm, gap 1.93 mmClose to MAZO (0.439 mm off)	Weaker figures

What each comparison means (4)

TDK SPM4020T-100M-LR (SPM4020T-LR): Same inductance, 10 µH vs MAZO 10 µH. Saturation current 2.3 A (30% drop) vs MAZO 2.2 A typ. (30% drop); heating current 1.8 A (40 °C rise) vs MAZO 1.7 A typ. (40 °C rise). DCR 284.1 mΩ max vs MAZO 281 mΩ max. Body 4.4 × 4.1 × 2 mm vs MAZO 4.75 × 4.45 × 2 mm. Land pattern close to MAZO's: two 2.3 × 1.65 mm pads 1.65 mm apart vs MAZO two 2.5 × 1.5 mm pads 2.2 mm apart (gap differs by 0.55 mm). Verdict: drop-in candidate (MAZO Isat about 4% lower, Idc about 6% 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.
Bourns SRP4020TA-100M: Same inductance, 10 µH vs MAZO 10 µH. Saturation current 2.3 A (20% drop) vs MAZO 2.2 A typ. (30% drop), rated on different bases so not directly comparable; heating current 1.8 A (40 °C rise) vs MAZO 1.7 A typ. (40 °C rise). DCR 243 mΩ max vs MAZO 281 mΩ max. Body 4.45 × 4.06 × 2 mm vs MAZO 4.75 × 4.45 × 2 mm. Same land pattern as MAZO (two 2.5 × 1.5 mm pads 2.2 mm apart). Verdict: replaceable with design margin (Idc about 6% 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 and test samples. Both parts are AEC-Q200.
Coilcraft XAL4040-103MEC (XAL4030 / XAL4040): Same inductance, 10 µH vs MAZO 10 µH. Saturation current 3 A (30% drop) vs MAZO 2.2 A typ. (30% drop); heating current 3.1 A (40 °C rise) vs MAZO 1.7 A typ. (40 °C rise). DCR 92.4 mΩ max vs MAZO 281 mΩ max. Body 4 × 4 × 4.1 mm vs MAZO 4.75 × 4.45 × 2 mm, MAZO 2.1 mm lower. Land pattern differs from MAZO's: two 3.4 × 0.98 mm pads 1.39 mm apart vs MAZO two 2.5 × 1.5 mm pads 2.2 mm apart (overall span differs by 1.85 mm). Verdict: MAZO figures are weaker, consider only with ample margin (MAZO Isat about 27% lower, Idc about 45% 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.
Cyntec VCHA042A-100MS62M (VCHA042A MS62M): Same inductance, 10 µH vs MAZO 10 µH. Saturation current 2.4 A (30% drop) vs MAZO 2.2 A typ. (30% drop); heating current 2.5 A (40 °C rise) vs MAZO 1.7 A typ. (40 °C rise). DCR 129 mΩ max vs MAZO 281 mΩ max. Body 4.2 × 4 × 2.1 mm vs MAZO 4.75 × 4.45 × 2 mm, MAZO 0.1 mm lower. Land pattern close to MAZO's: two 2.286 × 1.855 mm pads 1.93 mm apart vs MAZO two 2.5 × 1.5 mm pads 2.2 mm apart (overall span differs by 0.439 mm). Verdict: MAZO figures are weaker, consider only with ample margin (MAZO Isat about 8% lower, Idc about 32% 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 4.75 × 4.45 mm body, by inductance. Check the height before swapping.

Part number	L	Isat	Idc	DCR max	Height	Unit price
VCMA-0420-R22-M-1A	0.22 µH	18.5 A	12 A	5.6 mΩ	2 mm	$0.21
VCMA-0420-R33-M-1A	0.33 µH	16 A	10 A	8 mΩ	2 mm	$0.21
VCMA-0420-R47-M-1A	0.47 µH	12 A	8.5 A	12 mΩ	2 mm	$0.22
VCMA-0420-R56-M-1A	0.56 µH	10.5 A	8 A	13 mΩ	2 mm	$0.28
VCMA-0420-R68-M-1A	0.68 µH	9 A	7.5 A	14 mΩ	2 mm	$0.28
VCMA-0420-1R0-M-1A	1 µH	7.5 A	6.5 A	24 mΩ	2 mm	$0.28
VCMA-0420-1R2-M-1A	1.2 µH	7 A	6.2 A	27 mΩ	2 mm	$0.28
VCMA-0420-1R5-M-1A	1.5 µH	6.5 A	4.8 A	30 mΩ	2 mm	$0.28
VCMA-0420-2R2-M-1A	2.2 µH	5.5 A	4.2 A	50 mΩ	2 mm	$0.21
VCMA-0420-3R3-M-1A	3.3 µH	4.5 A	3.3 A	82 mΩ	2 mm	$0.23
VCMA-0420-4R7-M-1A	4.7 µH	3.3 A	2.5 A	105 mΩ	2 mm	$0.33
VCMA-0420-6R8-M-1A	6.8 µH	2.6 A	2 A	185 mΩ	2 mm	$0.36

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-0530-100-M-1A	10 µH	3 A	2.5 A	125 mΩ	5.7 × 5.4 × 3 mm	$0.20
VCMA-0630-100-M-1A	10 µH	5.5 A	4.1 A	67 mΩ	7.3 × 6.8 × 3 mm	$0.21
VCMA-1040-100-M-1A	10 µH	9 A	7.2 A	30 mΩ	11.5 × 10.3 × 4 mm	$0.62
VCMA-1350-100-M-1A	10 µH	14 A	8.5 A	21.5 mΩ	13.8 × 12.9 × 5 mm	$0.75
VCMA-1365-100-M-1A	10 µH	18 A	15 A	17 mΩ	13.8 × 12.9 × 6.5 mm	$0.93

Buy

Unit price · USD / piece$0.41For 5 pieces

Quantity pricingSelect a tier to set the quantity.

Quantity	Unit price	Extended
5–49	$0.41	$2.05
50–149	$0.29	$14.50
150–499	$0.236	$35.40
500–2999	$0.199	$99.50

Merchandise subtotal$2.05Item 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

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Quantity

Minimum order: 5; order in multiples of 1.

PackagingFor the selected quantity

Standard full-reel quantity: 3000 pieces
Packed as: Cut tape · 5 pieces
Cut-tape fee: None
Online order limit: 2999 pieces

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How to select

Choosing inductance

L ≈ (Vin − Vout) × Vout ÷ (Vin × fsw × ΔI), with ΔI at 20–40% of the output current. The series covers 0.1–10 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 3.5–245 mΩ across the series; use the maximum for loss budgets.

Rated voltage

40 V maximum; check it against the input voltage.

Height

Max 2.0 mm. For more current, VCMA-0530 or VCMA-0630.

Industry and product applications

VCMA-0420-100-M-1A is a VCMA-0420 series part for evaluation in automotive electronics.

Manufacturer-listed series applications

Automotive applications.

MAZO datasheet: VCMA-0420-XXX-M-1A, revision A4, 2025-11-26 — applications on page 1

Circuit applications to evaluate

Sensor and camera module supplies
Point-of-load bucks next to MCUs
LED drivers and backlight
BMS and on-board charger auxiliary supplies

These are series applications and engineering evaluation examples. Select VCMA-0420-100-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.