HC8LP-470-R Equivalent & Substitute Parts

Part Overview

The HC8LP-470-R is a 47 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 1.8 A continuous current with a maximum DC resistance of 344 mOhm and operates across the temperature range of -40°C to 155°C. The part is ROHS3 compliant and carries an active product status with 812 units currently in stock.

Substitute parts are identified when equivalent inductance values, current ratings, and core materials meet or exceed the electrical requirements of the original specification while maintaining compatibility with surface mount assembly processes.

Substiute Parts

HC8LP-470-R

Eaton - Electronics DivisionIn Stock: 896HC8LP-470-R Datasheet

Current PartRFQ

SRP1038A-470M

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HC8LP-470-R is determined by the following criteria:

Primary Electrical Parameters:

• Inductance value of 47 µH at 100 kHz test frequency
• Inductance tolerance of ±20%
• Current rating equal to or greater than 1.8 A
• Saturation current (Isat) equal to or greater than 3.1 A
• DC resistance (DCR) equal to or less than 344 mOhm

Environmental & Compliance Parameters:

• Operating temperature range that encompasses or exceeds -40°C to 155°C
• ROHS3 compliance
• Surface mount packaging configuration
• Moisture sensitivity level of 1 (Unlimited)

Mechanical Parameters:

• Nonstandard package case compatible with surface mount assembly
• Physical dimensions suitable for PCB placement

The SRP1038A-470M from Bourns Inc. qualifies as a direct substitute based on matching inductance specification, exceeding current rating requirements, and maintaining ROHS3 compliance. Differences in core material (carbonyl powder vs. iron powder), shielding configuration, and DC resistance are secondary considerations that do not preclude substitution when primary electrical parameters are satisfied.

Parameter Comparison

Engineering Selection Recommendations

HC8LP-470-R Selection Criteria:

• Original design specification with iron powder core material
• Unshielded configuration for applications without electromagnetic interference constraints
• Operating temperature requirement up to 155°C
• ROHS3 compliance verified
• Active product status with established supply chain

SRP1038A-470M Selection Criteria:

• Higher current capacity (3 A vs. 1.8 A) provides design margin
• Lower DC resistance (167 mOhm vs. 344 mOhm) reduces power dissipation
• Shielded configuration suitable for noise-sensitive applications
• Carbonyl powder core material offers alternative magnetic characteristics
• AEC-Q200 automotive qualification available
• ROHS3 compliance verified
• Operating temperature range of -40°C to 150°C covers most industrial applications
• Larger inventory availability (10,400 units)

Both parts maintain ROHS3 compliance and surface mount compatibility. Selection between them depends on specific application requirements regarding shielding, thermal performance, and current margin requirements.

Frequently Asked Questions (FAQ)

Q: Can the SRP1038A-470M directly replace the HC8LP-470-R in all applications?

A: The SRP1038A-470M meets or exceeds all primary electrical parameters (inductance, current rating, saturation current) and maintains ROHS3 compliance. Physical dimensions differ slightly (height 4.00mm vs. 3.50mm), requiring verification of PCB layout clearance. The shielded configuration of the SRP1038A-470M may affect electromagnetic coupling in circuits designed around the unshielded HC8LP-470-R.

Q: What is the significance of the different core materials?

A: The HC8LP-470-R uses iron powder core material, while the SRP1038A-470M uses carbonyl powder. Both materials support the specified 47 µH inductance at 100 kHz. Carbonyl powder cores typically exhibit lower core losses and higher Q factors. The choice between materials depends on application-specific frequency response and thermal management requirements.

Q: Does the lower DC resistance of the SRP1038A-470M affect circuit performance?

A: Lower DC resistance (167 mOhm vs. 344 mOhm) reduces resistive losses in the inductor winding. This results in lower power dissipation and improved efficiency. For applications where the original 344 mOhm specification was a design constraint, the SRP1038A-470M provides improved performance characteristics.

Q: Are there packaging compatibility issues between these parts?

A: Both parts are surface mount components with nonstandard package cases. The HC8LP-470-R is supplied in Tape & Reel (TR) packaging, while the SRP1038A-470M is available in Cut Tape (CT) and Digi-Reel® formats. Physical dimensions are similar (approximately 11mm x 10mm footprint), but the SRP1038A-470M is 0.5mm taller. PCB layout and pick-and-place equipment compatibility must be verified.

Q: What is the operating temperature consideration for substitution?

A: The HC8LP-470-R operates from -40°C to 155°C, while the SRP1038A-470M operates from -40°C to 150°C. Applications requiring operation above 150°C must use the HC8LP-470-R. For applications within the -40°C to 150°C range, both parts are suitable.

Q: How do the saturation current ratings compare?

A: The HC8LP-470-R has a saturation current of 3.1 A, while the SRP1038A-470M has 4.5 A. Both exceed the continuous current rating of the HC8LP-470-R (1.8 A). The higher saturation current of the SRP1038A-470M provides additional margin against core saturation in transient conditions.