HCMA1104-1R0-R Equivalent & Substitute Parts

Part Overview

The HCMA1104-1R0-R is a 1 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 18 A continuous current with a maximum DC resistance of 3.3 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 high current handling with minimal DC losses.

The HCMA1104-1R0-R is currently in active production status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained while addressing inventory availability or specific application requirements.

Substiute Parts

HCMA1104-1R0-R

Eaton - Electronics DivisionIn Stock: 1011HCMA1104-1R0-R Datasheet

Current PartRFQ

IHLP4040DZER1R0M1A

Vishay DaleIn Stock: 2266IHLP4040DZER1R0M1A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCMA1104-1R0-R are identified based on the following critical electrical and mechanical parameters:

Primary Matching Criteria:

• Inductance value: 1 µH
• Inductance tolerance: ±20%
• Shielding: Shielded configuration
• Mounting type: Surface Mount
• Operating temperature range: -55°C to 125°C
• AEC-Q200 qualification
• RoHS compliance status

Secondary Compatibility Factors:

• Current rating capability (minimum 18 A continuous)
• DC resistance performance (lower or equivalent to 3.3 mOhm)
• Package form factor and height constraints
• Moisture sensitivity level (MSL 1)

The IHLP4040DZER1R0M1A meets these substitution criteria through equivalent inductance, tolerance, shielding, temperature range, and automotive-grade qualification. Differences in core material (metal composite versus iron powder) and saturation current characteristics do not preclude substitution when application requirements are satisfied by the substitute part's electrical performance envelope.

Parameter Comparison

Engineering Selection Recommendations

HCMA1104-1R0-R Selection: The HCMA1104-1R0-R is the primary choice when Eaton component qualification is required or when the specific saturation current of 28 A is necessary for the application. This part maintains active production status and carries AEC-Q200 automotive qualification with RoHS compliance. The iron powder core construction provides the specified performance envelope.

IHLP4040DZER1R0M1A Selection: The IHLP4040DZER1R0M1A serves as a functional substitute when higher current capacity (25 A rating) or lower DC resistance (2.5 mOhm) provides design margin benefits. This Vishay Dale component is also AEC-Q200 qualified and ROHS3 compliant. The metal composite core construction delivers equivalent inductance and tolerance specifications. Physical dimensions are within acceptable tolerance for standard surface mount PCB layouts. This substitute is appropriate when inventory availability of the primary part is constrained.

Both parts satisfy the core electrical requirements of 1 µH inductance at ±20% tolerance, shielded configuration, surface mount compatibility, and automotive-grade reliability standards across the -55°C to 125°C operating range.

Frequently Asked Questions (FAQ)

Q: Can the IHLP4040DZER1R0M1A directly replace the HCMA1104-1R0-R on existing PCB layouts?

A: The IHLP4040DZER1R0M1A has compatible surface mount footprint dimensions. Length is 0.425" versus 0.437", width is 0.400" versus 0.394", and both share identical 0.157" maximum height. These dimensional differences are within standard PCB design tolerances for surface mount placement. Verify footprint compatibility with your specific PCB design before implementation.

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

A: The HCMA1104-1R0-R uses an iron powder core, while the IHLP4040DZER1R0M1A uses a metal composite core. Both core types achieve the same 1 µH inductance value and ±20% tolerance at 100 kHz test frequency. The core material difference does not affect substitution eligibility when electrical performance requirements are met.

Q: Are both parts qualified for automotive applications?

A: Yes. Both the HCMA1104-1R0-R and IHLP4040DZER1R0M1A carry AEC-Q200 qualification, confirming suitability for automotive-grade reliability requirements. Both operate across -55°C to 125°C and maintain MSL 1 moisture sensitivity rating.

Q: How do the current ratings compare between these parts?

A: The HCMA1104-1R0-R is rated for 18 A continuous current with 28 A saturation current. The IHLP4040DZER1R0M1A is rated for 25 A continuous current with 20 A saturation current. For applications requiring sustained current below 18 A, both parts are suitable. For applications approaching or exceeding 18 A, the IHLP4040DZER1R0M1A provides higher continuous current capacity, though its saturation current is lower.

Q: What does the DC resistance difference mean for thermal performance?

A: The IHLP4040DZER1R0M1A has lower maximum DC resistance at 2.5 mOhm compared to the HCMA1104-1R0-R at 3.3 mOhm. Lower DC resistance reduces resistive heating (I²R losses) at the same current level, resulting in cooler operation. This characteristic makes the IHLP4040DZER1R0M1A advantageous in high-current or thermally constrained applications.

Q: Are there RoHS compliance differences between these parts?

A: The HCMA1104-1R0-R is RoHS Compliant. The IHLP4040DZER1R0M1A is ROHS3 Compliant. ROHS3 represents the current RoHS directive revision. Both parts meet RoHS requirements; the IHLP4040DZER1R0M1A reflects more recent compliance documentation.

Q: Can I use the IHLP4040DZER1R0M1A in a design originally specified for the HCMA1104-1R0-R?

A: Substitution is permissible when the application requirements fall within the IHLP4040DZER1R0M1A electrical performance envelope. Verify that your design does not depend on the specific saturation current of 28 A from the original part. Confirm PCB footprint compatibility and thermal management adequacy given the lower DC resistance. Both parts meet automotive qualification and temperature range requirements.