HCP1305-2R2-R Equivalent & Substitute Parts

Part Overview

The HCP1305-2R2-R is a 2.2 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division, rated for 20 A continuous current with a maximum DC resistance of 5.5 mOhm. This surface mount component operates across the temperature range of -55°C to 125°C and is designed for applications requiring fixed inductance in compact form factors.

The HCP1305-2R2-R is classified as obsolete. Substitute parts are necessary to maintain design continuity and ensure long-term component availability for new production runs and field replacements. The substitute parts listed below maintain electrical equivalence while offering improved availability and, in many cases, enhanced product status and compliance certifications.

Substiute Parts

HCP1305-2R2-R

Eaton - Electronics DivisionIn Stock: 1186HCP1305-2R2-R Datasheet

Current PartRFQ

HCM1305-2R2-R

Eaton - Electronics DivisionIn Stock: 9118HCM1305-2R2-R Datasheet

SimilarRFQ

IHLP5050EZER2R2M01

Vishay DaleIn Stock: 1359IHLP5050EZER2R2M01 Datasheet

SimilarRFQ

SRP1245A-2R2M

Bourns Inc.In Stock: 7060SRP1245A-2R2M Datasheet

SimilarRFQ

SRP1250-2R2M

Bourns Inc.In Stock: 5984SRP1250-2R2M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HCP1305-2R2-R is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Inductance value: 2.2 µH
• Inductance tolerance: ±20%
• Current rating: 20 A minimum
• Saturation current (Isat): 32 A minimum
• DC resistance: 5.5 mOhm maximum
• Test frequency: 100 kHz

Mechanical Compatibility Requirements:

• Mounting type: Surface Mount
• Package classification: Nonstandard (all candidates share this designation)
• Moisture sensitivity level: 1 (Unlimited)

Environmental Requirements:

• Operating temperature range: -55°C to 125°C minimum (substitutes may exceed this range)

All substitute parts listed maintain these electrical and mechanical parameters. Variations in shielding configuration, core material, and physical dimensions are noted but do not preclude functional substitution when circuit design permits.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: HCM1305-2R2-R

The HCM1305-2R2-R is the direct Eaton equivalent to the HCP1305-2R2-R, differing only in shielding configuration (shielded versus unshielded) and DC resistance specification (5.29 mOhm versus 5.5 mOhm maximum). This part maintains the same manufacturer lineage, core material (iron powder), and operating temperature range. The HCM1305-2R2-R carries Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. Inventory availability is substantial at 9017 pieces.

Secondary Recommendations: SRP1245A-2R2M and SRP1250-2R2M

Both Bourns SRP series inductors meet all electrical and mechanical equivalence criteria. The SRP1245A-2R2M offers extended operating temperature range (-40°C to 150°C) and includes AEC-Q200 automotive qualification. The SRP1250-2R2M extends the upper temperature limit to 150°C and uses iron core material. Both are available in Tape & Reel packaging with Active product status and ROHS3 compliance.

Alternative Recommendation: IHLP5050EZER2R2M01

The Vishay Dale IHLP5050EZER2R2M01 is a molded inductor construction offering shielding and electrical equivalence. This part is suitable for applications where molded construction is acceptable and provides ROHS3 compliance with Active product status.

Selection Criteria:

• For direct Eaton platform continuity: Select HCM1305-2R2-R
• For automotive-qualified designs: Select SRP1245A-2R2M
• For extended temperature operation: Select SRP1250-2R2M or SRP1245A-2R2M
• For molded construction preference: Select IHLP5050EZER2R2M01

All substitute parts are Active status components with current manufacturing support and regulatory compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the HCP1305-2R2-R be directly replaced with the HCM1305-2R2-R?

A: Yes. Both parts are manufactured by Eaton and share identical electrical specifications: 2.2 µH inductance, 20 A current rating, 32 A saturation current, and 5.5 mOhm maximum DC resistance. The primary difference is shielding configuration. The HCM1305-2R2-R is shielded, which may reduce electromagnetic interference in sensitive applications. The HCM1305-2R2-R is Active status with ROHS3 compliance, whereas the HCP1305-2R2-R is obsolete.

Q: What is the significance of shielding in these inductors?

A: Shielded inductors (HCM1305-2R2-R, IHLP5050EZER2R2M01, SRP1245A-2R2M, SRP1250-2R2M) contain electromagnetic field containment, reducing radiated emissions and susceptibility to external magnetic fields. The unshielded HCP1305-2R2-R has no such containment. Circuit design determines whether shielding is required. Shielded variants are suitable for all applications where the unshielded version was used.

Q: Are there physical size differences between these inductors?

A: Yes. All parts are classified as nonstandard package size. Dimensions vary slightly:

• HCP1305-2R2-R: 13.80mm L × 12.90mm W × 5.00mm H
• HCM1305-2R2-R: 13.30mm L × 12.20mm W × 5.00mm H
• IHLP5050EZER2R2M01: 13.20mm L × 12.90mm W × 5.00mm H
• SRP1245A-2R2M: 13.50mm L × 12.50mm W × 5.00mm H
• SRP1250-2R2M: 13.90mm L × 13.50mm W × 5.90mm H

PCB layout verification is required when substituting parts with different footprints.

Q: What is the difference between iron powder and carbonyl powder core materials?

A: Core material affects inductor performance characteristics including Q factor, frequency response, and saturation behavior. The HCP1305-2R2-R and HCM1305-2R2-R use iron powder cores. The SRP1245A-2R2M uses carbonyl powder. The SRP1250-2R2M uses iron core material. All maintain the specified 2.2 µH inductance and 20 A current rating. Core material selection does not preclude functional substitution when electrical specifications are met.

Q: Can these inductors be used in automotive applications?

A: The SRP1245A-2R2M carries AEC-Q200 automotive qualification. The other parts do not list automotive qualification. If automotive qualification is required, the SRP1245A-2R2M is the appropriate selection.

Q: What does ROHS3 compliance mean?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates the component meets European Union environmental standards restricting hazardous substances including lead, cadmium, and mercury. All substitute parts except the obsolete HCP1305-2R2-R carry ROHS3 compliance certification.

Q: What is the operating temperature range for each part?

A: HCP1305-2R2-R and HCM1305-2R2-R: -55°C to 125°C. IHLP5050EZER2R2M01: -55°C to 125°C. SRP1245A-2R2M: -40°C to 150°C. SRP1250-2R2M: -55°C to 150°C. Applications requiring operation above 125°C require selection of SRP1245A-2R2M or SRP1250-2R2M.

Q: What packaging options are available?

A: HCM1305-2R2-R, SRP1245A-2R2M, and SRP1250-2R2M are supplied in Tape & Reel (TR) packaging. IHLP5050EZER2R2M01 is supplied in Cut Tape (CT) and Digi-Reel® packaging. Packaging selection affects procurement and assembly processes.

Q: Is the DC resistance specification critical for substitution?

A: DC resistance affects power dissipation and thermal performance. The HCP1305-2R2-R, IHLP5050EZER2R2M01, SRP1245A-2R2M, and SRP1250-2R2M all specify 5.5 mOhm maximum. The HCM1305-2R2-R specifies 5.29 mOhm maximum, which is lower and therefore superior. All values are within acceptable substitution tolerance for applications designed around the 5.5 mOhm specification.