HC8-470-R Equivalent & Substitute Parts Reference

Part Overview

The HC8-470-R is a 47 µH unshielded drum core wirewound inductor manufactured by Eaton Electronics Division, rated for 2.2 A continuous current with a maximum DC resistance of 237 mOhm. This surface mount component operates across the temperature range of -40°C to 155°C and is RoHS3 compliant with MSL 1 rating. The part is currently active in production with 632 pieces available in inventory.

Equivalent and substitute parts are identified when design requirements permit relaxation of specific electrical or mechanical constraints, such as increased current rating, reduced DC resistance, or alternative shielding configurations, while maintaining the core 47 µH inductance specification and surface mount form factor.

Substiute Parts

HC8-470-R

Eaton - Electronics DivisionIn Stock: 666HC8-470-R Datasheet

Current PartRFQ

SRP1038A-470M

Bourns Inc.In Stock: 10483SRP1038A-470M Datasheet

DirectRFQ

IHLP4040DZER470M11

Vishay DaleIn Stock: 5881IHLP4040DZER470M11 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HC8-470-R are qualified based on the following criteria:

Primary Matching Criteria:

• Inductance value: 47 µH ±20% tolerance
• Mounting type: Surface mount
• Package form factor: Nonstandard 10.90mm x 10.40mm footprint with 4.00mm maximum height
• Inductance test frequency: 100 kHz

Allowable Parameter Variations:

• Current rating: Equal to or greater than 2.2 A
• DC resistance: Equal to or less than 237 mOhm
• Saturation current: Equal to or greater than 4.2 A
• Shielding: Shielded or unshielded configurations
• Core material: Iron powder, carbonyl powder, or molded constructions
• Operating temperature range: Minimum -40°C lower bound; maximum 125°C or higher upper bound
• RoHS and MSL compliance: RoHS3 compliant with MSL 1 rating

Substitutes that meet these criteria are electrically and mechanically compatible for direct board-level replacement in applications where the HC8-470-R is specified.

Parameter Comparison

Engineering Selection Recommendations

SRP1038A-470M (Bourns Inc.) qualifies as a direct substitute when design specifications permit shielded construction. This part exceeds the HC8-470-R in current rating (3 A vs. 2.2 A) and saturation current (4.5 A vs. 4.2 A), while providing superior DC resistance performance (167 mOhm vs. 237 mOhm). The carbonyl powder core and shielded design reduce electromagnetic interference. Operating temperature range (-40°C to 150°C) covers the HC8-470-R minimum requirement. RoHS3 compliance and MSL 1 rating match the original specification. Footprint dimensions are within acceptable tolerance for board-level replacement.

IHLP4040DZER470M11 (Vishay Dale) qualifies as a substitute when shielded molded construction is acceptable. This part provides the lowest DC resistance (145 mOhm) and highest current rating (3.3 A) among the three options. The molded construction offers enhanced mechanical robustness. Operating temperature range (-55°C to 125°C) meets the HC8-470-R lower bound but does not extend to the original 155°C maximum. RoHS3 compliance and MSL 1 rating are maintained. Saturation current (3 A) is lower than the HC8-470-R (4.2 A), requiring verification in applications approaching saturation limits. Footprint dimensions are compatible with board-level replacement.

Both substitutes are active production parts with RoHS3 compliance and MSL 1 ratings, ensuring supply chain continuity and environmental regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the SRP1038A-470M replace the HC8-470-R in all applications?

A: The SRP1038A-470M is electrically compatible for direct replacement when the circuit design permits shielded inductor construction. The higher current rating (3 A vs. 2.2 A) and lower DC resistance (167 mOhm vs. 237 mOhm) provide performance margin. Verify that shielding does not conflict with circuit layout or EMI requirements specific to your application.

Q: What is the primary difference between the HC8-470-R and IHLP4040DZER470M11?

A: The HC8-470-R is an unshielded wirewound drum core inductor with iron powder core material. The IHLP4040DZER470M11 is a shielded molded inductor. Both maintain 47 µH inductance and surface mount form factor. The IHLP4040DZER470M11 offers lower DC resistance (145 mOhm) but operates to a maximum of 125°C, compared to the HC8-470-R maximum of 155°C.

Q: Are there footprint compatibility concerns when substituting these parts?

A: All three parts maintain compatible surface mount footprints with 4.00mm maximum seated height. Dimensional variations are minimal: HC8-470-R (10.90mm x 10.40mm), SRP1038A-470M (11.00mm x 10.00mm), and IHLP4040DZER470M11 (10.80mm x 10.16mm). Board layout verification is recommended for high-density designs with tight component spacing.

Q: Do all substitute parts meet RoHS3 and MSL requirements?

A: Yes. The HC8-470-R, SRP1038A-470M, and IHLP4040DZER470M11 are all RoHS3 compliant with MSL 1 (Unlimited) rating. Environmental and moisture sensitivity specifications are equivalent across all three parts.

Q: Which substitute offers the best DC resistance performance?

A: The IHLP4040DZER470M11 provides the lowest maximum DC resistance at 145 mOhm, compared to 167 mOhm for the SRP1038A-470M and 237 mOhm for the HC8-470-R. Lower DC resistance reduces power dissipation and heat generation in the inductor.

Q: What is the saturation current consideration for the IHLP4040DZER470M11?

A: The IHLP4040DZER470M11 has a saturation current (Isat) of 3 A, which is lower than the HC8-470-R (4.2 A) and SRP1038A-470M (4.5 A). In applications where inductor current approaches or exceeds 3 A, saturation effects may occur earlier with the Vishay Dale part. Verify circuit current profiles before selection.

Q: Can the HC8-470-R be used in applications requiring shielded inductors?

A: No. The HC8-470-R is unshielded and will not provide electromagnetic shielding. For shielded applications, select the SRP1038A-470M or IHLP4040DZER470M11.