HC8LP-330-R Equivalent & Substitute Parts

Part Overview

The HC8LP-330-R is a 33 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 2.3 A continuous current with a maximum DC resistance of 224 mOhm and operates across the temperature range of -40°C to 155°C. The part is currently active in production and available in high volume inventory. Substitute parts are identified when equivalent inductance values, current ratings, and thermal performance meet or exceed the original specification requirements while maintaining surface mount compatibility and compliance certifications.

Substiute Parts

HC8LP-330-R

Eaton - Electronics DivisionIn Stock: 874HC8LP-330-R Datasheet

Current PartRFQ

SRP1038A-330M

Bourns Inc.In Stock: 6592SRP1038A-330M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HC8LP-330-R are qualified based on the following criteria:

Inductance Match: Substitute parts must maintain the same 33 µH inductance value with ±20% tolerance to ensure circuit performance equivalence.

Current Rating: Substitute parts must support a minimum continuous current rating equal to or greater than 2.3 A, with saturation current (Isat) at or above 3.8 A.

DC Resistance: Lower or equivalent DC resistance values are acceptable as they reduce power dissipation and heat generation in the circuit.

Mounting and Package: All substitutes must be surface mount components with nonstandard package dimensions compatible with the original footprint requirements.

Compliance and Environmental: Substitute parts must maintain ROHS3 compliance, MSL 1 rating, and operate within the specified temperature range or an extended range.

Core Material and Shielding: While the original part uses iron powder core with unshielded construction, substitutes with alternative core materials (such as carbonyl powder) and shielding configurations are acceptable if electrical parameters are met, as these variations do not compromise functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The SRP1038A-330M from Bourns Inc. qualifies as a direct substitute for the HC8LP-330-R based on electrical parameter equivalence. Both parts are active products with ROHS3 compliance and MSL 1 ratings, ensuring long-term availability and environmental regulatory alignment.

The SRP1038A-330M provides superior electrical performance characteristics: the current rating of 3.5 A exceeds the original 2.3 A requirement, saturation current of 5.0 A surpasses the 3.8 A specification, and the DC resistance of 112 mOhm maximum is 50% lower than the original 224 mOhm maximum. These improvements result in reduced thermal dissipation and enhanced circuit reliability under load conditions.

The substitute part incorporates shielding and carbonyl powder core construction, which provide electromagnetic interference mitigation benefits not present in the unshielded iron powder core original. The operating temperature range of -40°C to 150°C covers the critical lower and mid-range of the original -40°C to 155°C specification. Physical dimensions are comparable with minimal variation in length and width, though height increases by 0.50mm to 4.00mm maximum.

Both parts are tested at 100 kHz inductance frequency, confirming measurement consistency across the product line. Selection between these parts depends on application-specific requirements regarding shielding necessity, thermal budget constraints, and available PCB mounting height.

Frequently Asked Questions (FAQ)

Q: Can the SRP1038A-330M replace the HC8LP-330-R in all applications?

A: The SRP1038A-330M meets or exceeds all critical electrical parameters of the HC8LP-330-R, including inductance value, current rating, and saturation current. The substitute is electrically compatible for direct replacement. Physical dimensions are comparable, with the substitute measuring 0.50mm taller. Verify available PCB mounting height before selection.

Q: What is the significance of the lower DC resistance in the substitute part?

A: The SRP1038A-330M has a maximum DC resistance of 112 mOhm compared to 224 mOhm in the original part. Lower DC resistance reduces resistive power loss (I²R losses), resulting in lower operating temperature and improved efficiency. This is a performance advantage in current-carrying applications.

Q: Does the shielding in the SRP1038A-330M affect compatibility?

A: Shielding is an additional feature that reduces electromagnetic interference emission and susceptibility. In applications where the original unshielded part was used, the shielded substitute provides equal or improved performance without introducing incompatibility. Shielding does not degrade circuit function.

Q: Are both parts available in the same packaging format?

A: Both the HC8LP-330-R and SRP1038A-330M are supplied in Tape & Reel (TR) packaging for surface mount assembly. Packaging format is identical, supporting equivalent handling and automated assembly processes.

Q: What is the temperature operating range difference?

A: The HC8LP-330-R operates from -40°C to 155°C, while the SRP1038A-330M operates from -40°C to 150°C. The substitute covers the full lower temperature range and 150°C upper limit. Applications requiring operation above 150°C must retain the original HC8LP-330-R.

Q: How do the core materials differ between these parts?

A: The HC8LP-330-R uses iron powder core material, while the SRP1038A-330M uses carbonyl powder core material. Both materials support the specified 33 µH inductance and ±20% tolerance. Carbonyl powder cores typically offer lower core losses at higher frequencies and better temperature stability characteristics.

Q: Are both parts compliant with current environmental regulations?

A: Both the HC8LP-330-R and SRP1038A-330M are ROHS3 compliant and REACH unaffected, meeting current environmental and hazardous substance restrictions. Both carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating no special moisture control requirements during storage or handling.