HCMA1104-4R7-R Equivalent & Substitute Parts

Part Overview

The HCMA1104-4R7-R is a 4.7 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 8.5 A continuous current with a maximum DC resistance of 20 mOhm and operates across the temperature range of -55°C to 125°C. The part is AEC-Q200 qualified and RoHS compliant, making it suitable for automotive and industrial applications requiring reliable inductance in compact form factors.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances. The primary reason for identifying alternatives is to ensure supply chain continuity, optimize cost structures, and maintain design flexibility across manufacturing environments.

Substiute Parts

HCMA1104-4R7-R

Eaton - Electronics DivisionIn Stock: 826HCMA1104-4R7-R Datasheet

Current PartRFQ

IHLP4040DZER4R7MA1

Vishay DaleIn Stock: 42466IHLP4040DZER4R7MA1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCMA1104-4R7-R are identified based on strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Inductance value: 4.7 µH at 100 kHz test frequency
• Inductance tolerance: ±20%
• Current rating: minimum 8.5 A continuous
• DC resistance: maximum 20 mOhm
• Saturation current: minimum 15 A
• Shielding: shielded construction required

Mechanical & Environmental Equivalence Requirements:

• Mounting type: surface mount
• Package classification: nonstandard form factor
• Operating temperature range: minimum -55°C to 125°C
• Moisture sensitivity level: MSL 1 (Unlimited)
• Compliance: AEC-Q200 qualified, RoHS compliant

Physical Compatibility:

• Height seated (maximum): 4.00 mm
• Footprint dimensions: compatible with 11.10 mm × 10.00 mm or smaller envelope

Substitutes meeting all critical parameters are classified as direct equivalents suitable for component-level replacement without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The IHLP4040DZER4R7MA1 (Vishay Dale) qualifies as a direct substitute for the HCMA1104-4R7-R based on the following engineering criteria:

Electrical Performance: Both parts deliver 4.7 µH inductance at ±20% tolerance with 100 kHz test frequency. The substitute part exceeds the original specification in current rating (9.5 A vs. 8.5 A), DC resistance (16.5 mOhm vs. 20 mOhm maximum), and saturation current (17 A vs. 15 A), providing improved thermal and electrical margins.

Compliance & Certification: Both parts carry AEC-Q200 qualification, confirming suitability for automotive-grade applications. The substitute maintains RoHS compliance (ROHS3 standard) and MSL 1 moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols.

Thermal Performance: The substitute part extends the upper operating temperature limit to 155°C compared to the original 125°C specification, providing additional thermal headroom for high-temperature environments.

Physical Compatibility: Footprint dimensions are compatible within the nonstandard package classification. The substitute's slightly smaller footprint (10.80 mm × 10.16 mm vs. 11.10 mm × 10.00 mm) maintains the same 4.00 mm seated height, ensuring PCB layout compatibility.

Product Status: Both parts maintain active product status with established supply chains, supporting long-term design continuity.

Frequently Asked Questions (FAQ)

Q: Can the IHLP4040DZER4R7MA1 be used as a direct replacement for the HCMA1104-4R7-R without circuit modification?

A: Yes. Both parts meet identical electrical specifications for inductance value, tolerance, and shielding. The substitute part exceeds the original in current rating and DC resistance performance, making it electrically compatible for direct component-level substitution.

Q: What is the difference in core material between these two inductors?

A: The HCMA1104-4R7-R uses an iron powder core, while the IHLP4040DZER4R7MA1 uses a metal composite core. Both constructions achieve the specified 4.7 µH inductance with shielding and meet AEC-Q200 automotive qualification standards.

Q: Are there any PCB layout considerations when switching between these parts?

A: The substitute part has a slightly smaller footprint (10.80 mm × 10.16 mm vs. 11.10 mm × 10.00 mm) but maintains the same 4.00 mm height. Verify that the PCB pad pattern accommodates the substitute's dimensions. Both parts are surface mount with identical mounting type, so no assembly process changes are required.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both parts are AEC-Q200 qualified for automotive applications, RoHS compliant, and rated MSL 1 (Unlimited moisture sensitivity). The substitute extends the operating temperature range to 155°C, providing additional environmental margin.

Q: What is the significance of the ±20% inductance tolerance for circuit design?

A: The ±20% tolerance defines the acceptable inductance variation across the production range. Both parts share this tolerance specification, ensuring equivalent circuit performance within the design's tolerance budget. Verify that your circuit design accommodates this tolerance window.

Q: Can these parts be used interchangeably in high-current applications?

A: Yes. The substitute part's higher current rating (9.5 A vs. 8.5 A) and lower DC resistance (16.5 mOhm vs. 20 mOhm) make it suitable for applications at or near the original part's current limits, with improved thermal performance.

Q: What is the test frequency for the inductance specification?

A: Both parts specify inductance at 100 kHz test frequency. This is the standard measurement condition for verifying the 4.7 µH value and ±20% tolerance.