HCM1104-R56-R Equivalent & Substitute Parts

Part Overview

The HCM1104-R56-R is a 560 nH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 25 A continuous current with a maximum DC resistance of 1.8 mOhm and operates across the temperature range of -55°C to 125°C. The part is RoHS Compliant and carries an MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.

The HCM1104-R56-R maintains Active product status with 1537 pieces currently in stock. Equivalent and substitute parts are identified based on matching electrical specifications including inductance value, current rating, DC resistance, shielding characteristics, and operating temperature range. Substitute components may differ in core material composition, construction type, or saturation current ratings while maintaining functional equivalence within specified parameters.

Substiute Parts

HCM1104-R56-R

Eaton - Electronics DivisionIn Stock: 1601HCM1104-R56-R Datasheet

Current PartRFQ

PA4342.561NLT

Pulse ElectronicsIn Stock: 5784PA4342.561NLT Datasheet

DirectRFQ

SRP1038A-R56M

Bourns Inc.In Stock: 1844SRP1038A-R56M Datasheet

DirectRFQ

IHLP4040DZERR56M01

Vishay DaleIn Stock: 6373IHLP4040DZERR56M01 Datasheet

SimilarRFQ

IHLP4040DZERR56M11

Vishay DaleIn Stock: 1878IHLP4040DZERR56M11 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCM1104-R56-R is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value of 560 nH with ±20% tolerance
• Minimum current rating of 25 A
• Maximum DC resistance of 1.8 mOhm
• Shielded construction
• Surface mount configuration
• Operating temperature range compatibility

Secondary Considerations:

• Core material type (iron powder, carbonyl powder, or molded construction)
• Saturation current rating (Isat)
• Physical dimensions and height
• Compliance certifications (RoHS, REACH, AEC-Q200)
• Packaging format (Cut Tape, Tape & Reel, or Digi-Reel)

Parts are classified as Direct Manufacturer equivalents when all primary criteria are met with identical specifications. Parts are classified as Similar when primary criteria are met but secondary parameters such as current rating or DC resistance show minor variations within acceptable engineering tolerances.

Parameter Comparison

Engineering Selection Recommendations

PA4342.561NLT (Pulse Electronics) — Direct Equivalent

The PA4342.561NLT meets all primary electrical specifications of the HCM1104-R56-R with identical inductance, current rating, and DC resistance. This molded construction inductor operates at -40°C to 125°C, which covers the upper portion of the HCM1104-R56-R temperature range. ROHS3 compliance and unlimited MSL rating provide equivalent environmental protection. Higher saturation current (40 A vs. 32 A) offers additional design margin. Packaging in Tape & Reel format differs from the HCM1104-R56-R Cut Tape option. Inventory availability is significantly higher at 5741 pieces.

SRP1038A-R56M (Bourns Inc.) — Direct Equivalent

The SRP1038A-R56M provides direct electrical equivalence with matching inductance, current rating, and DC resistance specifications. This drum core wirewound inductor uses carbonyl powder core material and maintains identical construction approach to the HCM1104-R56-R. Operating temperature range extends to 150°C, exceeding the HCM1104-R56-R specification. AEC-Q200 automotive qualification and ROHS3 compliance are provided. Q factor of 15 @ 100 kHz and self-resonant frequency of 70 MHz are documented. Tape & Reel packaging differs from Cut Tape format. Inventory of 1833 pieces supports component availability.

IHLP4040DZERR56M01 (Vishay Dale) — Similar Specification

The IHLP4040DZERR56M01 maintains 560 nH inductance and ±20% tolerance with elevated current rating of 27.5 A and slightly higher DC resistance of 1.95 mOhm. This molded construction provides higher saturation current (49 A) and operates across -55°C to 125°C, matching the HCM1104-R56-R temperature range. ROHS3 and REACH compliance are confirmed. Physical dimensions are comparable at 10.80 mm × 10.16 mm. Cut Tape & Digi-Reel packaging aligns with HCM1104-R56-R format. Inventory of 6266 pieces provides strong availability.

IHLP4040DZERR56M11 (Vishay Dale) — Similar Specification

The IHLP4040DZERR56M11 delivers 560 nH inductance with elevated current rating of 32 A and matching DC resistance of 1.8 mOhm. This molded inductor operates across -55°C to 125°C, identical to the HCM1104-R56-R range. ROHS3 and REACH compliance are provided. Physical dimensions match the IHLP4040DZERR56M01 variant. Cut Tape & Digi-Reel packaging format aligns with the HCM1104-R56-R. Saturation current of 22 A is lower than the HCM1104-R56-R specification. Inventory of 1800 pieces supports procurement.

Frequently Asked Questions (FAQ)

Q: Can PA4342.561NLT replace HCM1104-R56-R in all applications?

A: PA4342.561NLT meets all primary electrical specifications including inductance, current rating, and DC resistance. The operating temperature range of -40°C to 125°C covers applications within this window. Applications requiring operation below -40°C require evaluation of the HCM1104-R56-R or alternatives with extended low-temperature ratings. Packaging format differs (Tape & Reel vs. Cut Tape), which may affect assembly line compatibility.

Q: What is the difference between drum core and molded construction inductors?

A: Drum core inductors (HCM1104-R56-R, SRP1038A-R56M) use wirewound construction on a cylindrical core material. Molded inductors (PA4342.561NLT, IHLP4040DZERR56M01, IHLP4040DZERR56M11) encapsulate the winding in a molded compound. Both constructions provide shielding and meet the specified electrical parameters. Selection depends on application-specific requirements for thermal management, mechanical robustness, and assembly compatibility.

Q: Why does IHLP4040DZERR56M11 have a lower saturation current than HCM1104-R56-R?

A: Saturation current (Isat) is determined by core material composition and winding design. IHLP4040DZERR56M11 saturation current of 22 A is lower than the HCM1104-R56-R specification of 32 A. This parameter indicates the current level at which the inductor begins to lose inductance due to core saturation. Applications requiring operation near or above 22 A should use alternatives with higher saturation ratings such as PA4342.561NLT (40 A) or SRP1038A-R56M (40 A).

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts carry RoHS3 compliance certification. The HCM1104-R56-R is RoHS Compliant. Both designations indicate compliance with Restriction of Hazardous Substances regulations. ROHS3 represents the current regulatory standard. All parts also carry MSL rating of 1 (Unlimited), indicating no moisture sensitivity constraints.

Q: What packaging formats are available?

A: HCM1104-R56-R and IHLP4040DZERR56M01/M11 are supplied in Cut Tape (CT) & Digi-Reel format. PA4342.561NLT and SRP1038A-R56M are supplied in Tape & Reel (TR) format. Packaging selection affects automated assembly compatibility and component handling. Verify packaging compatibility with assembly equipment before component selection.

Q: Does operating temperature range affect substitution eligibility?

A: Operating temperature range defines the thermal environment in which the inductor maintains specified electrical characteristics. HCM1104-R56-R operates from -55°C to 125°C. PA4342.561NLT operates from -40°C to 125°C, which is suitable for applications within this narrower range. SRP1038A-R56M extends to 150°C, providing additional thermal margin. Applications requiring full -55°C to 125°C operation should use HCM1104-R56-R, IHLP4040DZERR56M01, or IHLP4040DZERR56M11.

Q: What does ±20% inductance tolerance mean?

A: Inductance tolerance of ±20% indicates that the actual inductance value will fall within 448 nH to 672 nH (560 nH ± 20%). All listed parts share this tolerance specification. Applications requiring tighter inductance control should specify parts with narrower tolerance bands if available from manufacturers.

Q: How do I select between multiple substitute options?

A: Selection criteria include: (1) operating temperature range requirements, (2) saturation current margin needed for the application, (3) packaging format compatibility with assembly equipment, (4) core material preference (wirewound vs. molded), and (5) inventory availability. Direct equivalents (PA4342.561NLT, SRP1038A-R56M) provide identical primary specifications. Similar parts (IHLP4040DZERR56M01, IHLP4040DZERR56M11) offer higher current ratings with minor specification variations.