HCM0703-R82-R Equivalent & Substitute Parts

Part Overview

The HCM0703-R82-R is an 820 nH shielded drum core wirewound inductor manufactured by Eaton Electronics Division. This surface mount component is rated for 13 A continuous current with a maximum DC resistance of 8 mOhm and operates across the temperature range of -55°C to 125°C. The part is RoHS3 compliant and carries an active product status with substantial inventory availability (21,640 pieces in stock).

Substitute parts are necessary when the primary component becomes unavailable, when supply chain constraints require alternative sourcing, or when design flexibility permits selection from multiple qualified manufacturers offering equivalent electrical and mechanical performance.

Substiute Parts

HCM0703-R82-R

Eaton - Electronics DivisionIn Stock: 21720HCM0703-R82-R Datasheet

Current PartRFQ

IHLP2525CZERR82M01

Vishay DaleIn Stock: 17058IHLP2525CZERR82M01 Datasheet

SimilarRFQ

PG0426.821NL

Pulse ElectronicsIn Stock: 2126PG0426.821NL Datasheet

SimilarRFQ

SRP7028A-R82M

Bourns Inc.In Stock: 2953SRP7028A-R82M Datasheet

SimilarRFQ

SRP7030-R82M

Bourns Inc.In Stock: 1830SRP7030-R82M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCM0703-R82-R is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Inductance: 820 nH
• Inductance Tolerance: ±20%
• Current Rating: 13 A
• DC Resistance: 8 mOhm Max
• Shielding: Shielded
• Mounting Type: Surface Mount
• Inductance Test Frequency: 100 kHz
• RoHS3 Compliance: Required
• MSL Rating: 1 (Unlimited)

Allowable Variations:

• Core material type (Iron Powder, Carbonyl Powder, Molded construction)
• Physical dimensions (within surface mount package constraints)
• Operating temperature range (minimum -40°C acceptable; maximum 125°C or higher acceptable)
• Saturation current (20 A or higher acceptable)
• Packaging format (Tape & Reel acceptable)

All four substitute parts meet these criteria and are therefore direct functional equivalents for the HCM0703-R82-R.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts are active products with RoHS3 compliance and MSL 1 ratings, confirming their suitability for direct replacement in applications currently using the HCM0703-R82-R.

IHLP2525CZERR82M01 (Vishay Dale): This molded inductor provides the closest dimensional match to the primary part with identical height (3.00mm) and matching operating temperature range (-55°C to 125°C). Inventory availability is substantial at 17,018 pieces. This part is suitable for applications where molded construction is acceptable and dimensional constraints are tight.

PG0426.821NL (Pulse Electronics): This wirewound inductor offers an extended upper operating temperature limit of 130°C and extended lower temperature capability to -40°C. Physical dimensions are slightly larger (7.50mm x 7.00mm, 3.20mm height). Inventory is limited at 2,058 pieces. This part is appropriate for applications requiring enhanced thermal performance.

SRP7028A-R82M (Bourns Inc.): This drum core wirewound inductor features carbonyl powder core material with documented Q factor (15 @ 100kHz) and self-resonant frequency (61MHz). It carries AEC-Q200 automotive qualification and operates to 150°C maximum. Dimensions closely match the primary part (7.30mm x 6.60mm, 3.00mm height). Inventory is available at 2,886 pieces. This part is suitable for automotive and high-reliability applications.

SRP7030-R82M (Bourns Inc.): This shielded inductor with iron core material operates across -40°C to 125°C. Physical dimensions are the largest among substitutes (7.80mm x 7.00mm, 3.20mm height). Saturation current is 20 A, which remains above the 13 A rating. Inventory is available at 1,756 pieces. This part is suitable for applications with less stringent dimensional constraints.

Frequently Asked Questions (FAQ)

Q: Can the IHLP2525CZERR82M01 replace the HCM0703-R82-R in all applications?

A: The IHLP2525CZERR82M01 is electrically equivalent across all critical parameters (inductance, current rating, DCR, shielding). The primary consideration is construction type: the IHLP2525CZERR82M01 uses molded construction while the HCM0703-R82-R uses drum core wirewound construction. Both are shielded and meet identical electrical specifications. Physical dimensions are slightly smaller (6.86mm x 6.47mm versus 7.10mm x 6.60mm), which may be advantageous in space-constrained layouts.

Q: What is the difference between the two Bourns substitutes (SRP7028A-R82M and SRP7030-R82M)?

A: Both Bourns parts meet the electrical requirements. The SRP7028A-R82M uses carbonyl powder core material and includes documented Q factor and self-resonant frequency specifications, plus AEC-Q200 automotive qualification. The SRP7030-R82M uses iron core material and has a lower saturation current (20 A versus 24 A). The SRP7028A-R82M is preferred for automotive and high-reliability applications, while the SRP7030-R82M is suitable for general industrial use.

Q: Are there any temperature range limitations when substituting?

A: The HCM0703-R82-R operates from -55°C to 125°C. All substitute parts operate to at least -40°C minimum and 125°C maximum, meeting the primary part's temperature envelope. The PG0426.821NL, SRP7028A-R82M, and SRP7030-R82M offer extended upper temperature limits (130°C, 150°C, and 125°C respectively), which provide additional thermal margin in high-temperature applications.

Q: Do physical dimension differences affect PCB layout compatibility?

A: All substitute parts are surface mount components with similar footprints. The IHLP2525CZERR82M01 is slightly smaller (6.86mm x 6.47mm), while the SRP7030-R82M is slightly larger (7.80mm x 7.00mm). Height variations range from 3.00mm to 3.20mm. PCB layouts designed for the HCM0703-R82-R (7.10mm x 6.60mm, 3.00mm height) will accommodate the IHLP2525CZERR82M01 and SRP7028A-R82M without modification. The PG0426.821NL and SRP7030-R82M require verification of clearance for the additional 0.20mm height.

Q: Which substitute part has the best inventory availability?

A: The IHLP2525CZERR82M01 (Vishay Dale) has the highest inventory among substitutes at 17,018 pieces, followed by SRP7028A-R82M (Bourns) at 2,886 pieces, SRP7030-R82M (Bourns) at 1,756 pieces, and PG0426.821NL (Pulse Electronics) at 2,058 pieces.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All four substitute parts carry RoHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity ratings, matching the primary HCM0703-R82-R specification.

Q: What is the significance of the Q factor specification on the SRP7028A-R82M?

A: The SRP7028A-R82M provides a documented Q factor of 15 at 100 kHz and self-resonant frequency of 61 MHz. These specifications indicate the inductor's efficiency and frequency response characteristics. The primary part (HCM0703-R82-R) does not provide these specifications. Applications requiring specific Q factor or frequency response performance should reference the SRP7028A-R82M datasheet to confirm suitability.