VCHA075D-4R7MS6 Equivalent & Substitute Parts

Part Overview

The VCHA075D-4R7MS6 is a 4.7 µH unshielded surface mount inductor manufactured by Delta Electronics/Cyntec, rated for 7 A continuous current with a maximum DC resistance of 20.9 mOhm. This component is classified as Active product status and is AEC-Q200 compliant, making it suitable for automotive and industrial applications. Substitute parts are identified when equivalent inductance values, current ratings, and thermal operating ranges meet or exceed the original specification requirements while maintaining surface mount compatibility and compliance certifications.

Substiute Parts

VCHA075D-4R7MS6

Delta Electronics/CyntecIn Stock: 1075VCHA075D-4R7MS6 Datasheet

Current PartRFQ

HCM1A0805V2-4R7-R

Eaton - Electronics DivisionIn Stock: 2163HCM1A0805V2-4R7-R Datasheet

SimilarRFQ

SRP7050WA-4R7M

Bourns Inc.In Stock: 1902SRP7050WA-4R7M Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VCHA075D-4R7MS6 are qualified based on the following critical parameters:

Primary Substitution Criteria:

• Inductance value: 4.7 µH (exact match required)
• Inductance tolerance: ±20% (matching specification)
• Current rating: minimum 7 A continuous
• Operating temperature range: minimum -55°C ~ 155°C
• Surface mount configuration with compatible package footprint
• AEC-Q200 compliance certification
• ROHS3 compliance status

Secondary Compatibility Factors:

• DC resistance (DCR) values within acceptable operating parameters
• Saturation current (Isat) sufficient to prevent core saturation under load conditions
• Physical dimensions compatible with 7.70mm x 7.20mm x 5.40mm envelope

Two substitute parts meet these criteria: HCM1A0805V2-4R7-R (Eaton) and SRP7050WA-4R7M (Bourns Inc.).

Parameter Comparison

Engineering Selection Recommendations

HCM1A0805V2-4R7-R (Eaton - Electronics Division): This substitute provides 8 A continuous current rating, exceeding the 7 A requirement of the main part. The lower DC resistance of 15.6 mOhm Max reduces power dissipation compared to the original specification. The shielded core design provides electromagnetic interference mitigation. Operating temperature range extends to -55°C ~ 155°C, which is 10°C lower than the main part at the upper limit. Physical dimensions are slightly larger (8.10mm x 8.00mm), requiring PCB layout verification. AEC-Q200 and ROHS3 compliance certifications are maintained.

SRP7050WA-4R7M (Bourns Inc.): This substitute delivers 10.5 A continuous current rating with 13.3 A saturation current, providing significant margin above the 7 A requirement. DC resistance of 20.5 mOhm Max is equivalent to the main part specification. The shielded design offers EMI protection. Operating temperature range matches the main part at -55°C ~ 165°C. Physical dimensions (7.90mm x 7.30mm) are closely aligned with the original footprint. AEC-Q200 and ROHS3 compliance certifications are maintained. Q factor specification of 20 @ 100kHz is provided.

Both substitutes maintain Active product status and full compliance certifications required for automotive and industrial applications.

Frequently Asked Questions (FAQ)

Q: Can HCM1A0805V2-4R7-R be used as a direct replacement for VCHA075D-4R7MS6?

A: HCM1A0805V2-4R7-R meets the electrical specifications (4.7 µH, ±20% tolerance, 8 A rating exceeds 7 A requirement) and maintains AEC-Q200 and ROHS3 compliance. However, the package dimensions are larger (8.10mm x 8.00mm versus 7.70mm x 7.20mm), requiring PCB layout verification. The upper operating temperature limit is 155°C versus 165°C for the original part. The shielded core design differs from the unshielded original, which may affect circuit behavior in EMI-sensitive applications.

Q: What is the primary difference between SRP7050WA-4R7M and the original VCHA075D-4R7MS6?

A: Both parts share identical inductance (4.7 µH), tolerance (±20%), and operating temperature range (-55°C ~ 165°C). SRP7050WA-4R7M provides higher current rating (10.5 A versus 7 A) and saturation current (13.3 A versus 11.2 A). The main difference is the shielded core design in the Bourns part versus unshielded in the Delta part. Physical dimensions are closely matched (7.90mm x 7.30mm versus 7.70mm x 7.20mm).

Q: Are both substitute parts suitable for automotive applications?

A: Yes. Both HCM1A0805V2-4R7-R and SRP7050WA-4R7M carry AEC-Q200 certification, which qualifies them for automotive-grade applications. Both maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What impact does the shielded design of the substitute parts have on circuit performance?

A: Shielded inductors reduce electromagnetic radiation and susceptibility to external magnetic fields compared to unshielded designs. In applications where the original unshielded design was selected for specific circuit behavior or cost considerations, the shielded substitutes may alter circuit characteristics. Circuit-level testing is necessary to confirm functional equivalence in sensitive applications.

Q: How do DC resistance values affect part selection?

A: DC resistance directly impacts power dissipation and voltage drop across the inductor. HCM1A0805V2-4R7-R has lower DCR (15.6 mOhm Max), reducing losses. SRP7050WA-4R7M has DCR of 20.5 mOhm Max, nearly equivalent to the original 20.9 mOhm Max. Lower DCR is advantageous in high-current applications where thermal management is critical.

Q: Can package dimension differences affect PCB layout?

A: Yes. HCM1A0805V2-4R7-R (8.10mm x 8.00mm) is larger than the original (7.70mm x 7.20mm), potentially requiring PCB redesign or component repositioning. SRP7050WA-4R7M (7.90mm x 7.30mm) is closely matched to the original footprint and typically requires minimal layout adjustment. Verify available PCB space before final part selection.