HCM1707-8R2-R Equivalent & Substitute Parts

Part Overview

The HCM1707-8R2-R is a fixed surface mount inductor manufactured by Eaton - Electronics Division. This 8.2 µH shielded drum core wirewound inductor is rated for 16 A continuous current with a maximum DC resistance of 8.7 mOhm and operates across the temperature range of -55°C to 125°C. The component is classified as Active product status and is RoHS Compliant. Substitute parts are identified when the original part becomes unavailable, when inventory constraints exist, or when design requirements permit operation within the electrical and mechanical tolerances of alternative components.

Substiute Parts

HCM1707-8R2-R

Eaton - Electronics DivisionIn Stock: 822HCM1707-8R2-R Datasheet

Current PartRFQ

PA4344.822NLT

Pulse ElectronicsIn Stock: 1991PA4344.822NLT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HCM1707-8R2-R is permissible when the replacement component meets or exceeds the following critical electrical and mechanical parameters:

Inductance Value: The substitute must provide 8.2 µH inductance, tested at 100 kHz, to maintain circuit performance and frequency response characteristics.

Current Rating: The substitute must support a minimum continuous current rating of 16 A. Higher current ratings provide additional design margin and are acceptable.

DC Resistance: The substitute must maintain DC resistance at or below 8.7 mOhm maximum to ensure power dissipation and thermal performance remain within design specifications.

Saturation Current: The substitute must achieve saturation current of 20 A or higher to prevent core saturation under transient or peak current conditions.

Shielding: The substitute must be shielded to control electromagnetic interference and maintain EMI performance equivalent to the original component.

Mounting Type: The substitute must be surface mount compatible to ensure PCB assembly compatibility.

Operating Temperature Range: The substitute must support operation across -55°C to 125°C or a range that encompasses the application requirements.

Package Dimensions: The substitute must fit within or be compatible with the PCB footprint and height constraints of the original nonstandard package (17.20mm L × 16.85mm W × 7.00mm H max).

Compliance: The substitute must maintain RoHS compliance status for regulatory and supply chain requirements.

Parameter Comparison

Engineering Selection Recommendations

PA4344.822NLT (Pulse Electronics) as Substitute:

The PA4344.822NLT qualifies as a direct electrical substitute for the HCM1707-8R2-R based on matching inductance value (8.2 µH at 100 kHz), shielded construction, surface mount compatibility, and active product status from both manufacturers.

Electrical Advantages: The PA4344.822NLT provides higher current rating (18 A vs. 16 A) and higher saturation current (25 A vs. 20 A), offering improved headroom for transient current conditions and thermal margin.

Electrical Consideration: The PA4344.822NLT exhibits higher DC resistance (10.8 mOhm max vs. 8.7 mOhm max). This 3.1 mOhm increase results in higher power dissipation and must be evaluated against thermal design constraints of the application.

Temperature Range Consideration: The PA4344.822NLT operates from -40°C to 125°C, which is narrower than the original part's -55°C to 125°C range. Applications requiring operation below -40°C must retain the HCM1707-8R2-R.

Mechanical Consideration: The PA4344.822NLT footprint (17.70mm L × 17.20mm W) is slightly larger than the HCM1707-8R2-R (17.20mm L × 16.85mm W). PCB layout verification is required to confirm fit within available space. Both components share identical height (7.00mm max).

Compliance: Both components are RoHS compliant and maintain Active product status, ensuring long-term supply chain viability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can PA4344.822NLT replace HCM1707-8R2-R in all applications?

A: PA4344.822NLT is electrically compatible for applications operating between -40°C and 125°C. Applications requiring operation below -40°C must use HCM1707-8R2-R. The higher DC resistance of PA4344.822NLT (10.8 mOhm vs. 8.7 mOhm) increases power dissipation and must be verified against thermal budgets. PCB footprint dimensions must be confirmed for fit.

Q: What is the impact of higher DC resistance in PA4344.822NLT?

A: Higher DC resistance increases I²R power dissipation. At 16 A continuous current, the HCM1707-8R2-R dissipates 2.23 W, while PA4344.822NLT dissipates 2.77 W. This 0.54 W increase must be accommodated by thermal design. At 18 A (PA4344.822NLT rated current), dissipation reaches 3.50 W.

Q: Are the package dimensions compatible?

A: Both components have identical height (7.00mm). The PA4344.822NLT footprint (17.70mm × 17.20mm) is 0.5mm longer and 0.35mm wider than HCM1707-8R2-R (17.20mm × 16.85mm). PCB layout must accommodate these dimensions.

Q: What certifications apply to both parts?

A: HCM1707-8R2-R is RoHS Compliant. PA4344.822NLT is ROHS3 Compliant. Both meet regulatory requirements. PA4344.822NLT carries AEC-Q200 automotive qualification.

Q: Can I use PA4344.822NLT in applications below -40°C?

A: No. PA4344.822NLT is rated for -40°C to 125°C operation. Applications requiring -55°C operation must use HCM1707-8R2-R, which is rated -55°C to 125°C.

Q: What are the saturation current differences?

A: HCM1707-8R2-R saturates at 20 A. PA4344.822NLT saturates at 25 A. Both exceed their respective continuous current ratings, providing saturation margin. PA4344.822NLT offers 5 A additional saturation headroom.

Q: Are both parts available in Tape & Reel packaging?

A: Yes. Both HCM1707-8R2-R and PA4344.822NLT are supplied in Tape & Reel (TR) packaging for automated assembly.