HCM1707-2R2-R Equivalent & Substitute Parts

Part Overview

The HCM1707-2R2-R is a 2.2 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 37 A continuous current with a maximum DC resistance of 2.5 mOhm and operates across the temperature range of -55°C to 125°C. The part is currently active in production and RoHS compliant, making it suitable for applications requiring fixed inductance in power conversion, filtering, and signal conditioning circuits. Equivalent substitute parts are identified based on matching inductance value, current rating capability, shielding characteristics, and surface mount packaging compatibility.

Substiute Parts

HCM1707-2R2-R

Eaton - Electronics DivisionIn Stock: 958HCM1707-2R2-R Datasheet

Current PartRFQ

PA4344.222NLT

Pulse ElectronicsIn Stock: 1575PA4344.222NLT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HCM1707-2R2-R are identified based on the following critical parameters:

Primary Matching Criteria:

• Inductance value: 2.2 µH (exact match required)
• Shielding: Shielded configuration
• Mounting: Surface mount technology
• Package classification: Nonstandard form factor
• Inductance test frequency: 100 kHz

Secondary Compatibility Factors:

• Current rating capability: Equal to or greater than 37 A
• DC resistance: Within acceptable operating limits
• Operating temperature range: Minimum coverage of -55°C to 125°C or equivalent
• RoHS compliance status: Active compliance required

The PA4344.222NLT from Pulse Electronics meets these substitution criteria with equivalent inductance, superior current rating (43.5 A), comparable DC resistance (2.7 mOhm), and matching surface mount configuration.

Parameter Comparison

Engineering Selection Recommendations

HCM1707-2R2-R Selection Criteria:

• Primary choice for applications requiring extended low-temperature operation down to -55°C
• Preferred when DC resistance specification of 2.5 mOhm maximum is critical
• Suitable for designs with 37 A nominal current requirements
• Active product status with established supply chain

PA4344.222NLT Selection Criteria:

• Suitable for applications with current requirements up to 43.5 A, providing design margin above the 37 A nominal rating
• Applicable when operating temperature minimum of -40°C meets system requirements
• Enhanced RoHS3 compliance status for regulated markets
• Higher saturation current (46 A) provides improved transient performance
• Acceptable DC resistance of 2.7 mOhm for most power conversion applications

Both parts maintain active product status and full RoHS compliance. Selection between these parts depends on specific application temperature range requirements and DC resistance tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can PA4344.222NLT directly replace HCM1707-2R2-R in all applications?

A: PA4344.222NLT is compatible for applications where the operating temperature minimum is -40°C or higher. If your circuit requires operation below -40°C, the HCM1707-2R2-R is required. Both parts have identical inductance values and shielding characteristics.

Q: What is the significance of the DC resistance difference (2.5 mOhm vs 2.7 mOhm)?

A: The 0.2 mOhm difference represents approximately 8% higher resistance in the PA4344.222NLT. For 37 A operation, this results in approximately 0.27 W additional power dissipation. Evaluate thermal management requirements for your specific application.

Q: Are both parts available in the same package dimensions?

A: Both parts are classified as nonstandard package types with similar footprints. HCM1707-2R2-R measures 17.20mm × 16.85mm × 7.00mm (max height). PA4344.222NLT measures 17.70mm × 17.20mm × 7.00mm (max height). Verify PCB layout compatibility before substitution.

Q: What does the higher saturation current in PA4344.222NLT (46 A vs 34 A) mean for my design?

A: Higher saturation current indicates the substitute part maintains inductance stability at higher current levels. This provides additional design margin and improved performance during transient current events.

Q: Are there any compliance differences between these parts?

A: HCM1707-2R2-R is RoHS Compliant. PA4344.222NLT is ROHS3 Compliant, which represents an enhanced compliance standard. Both parts are suitable for regulated applications. PA4344.222NLT also carries REACH Unaffected status.

Q: Can I use PA4344.222NLT in a -55°C environment?

A: No. PA4344.222NLT is rated for -40°C minimum. For applications requiring -55°C operation, HCM1707-2R2-R must be used.