HCM1707-470-R Equivalent & Substitute Parts

Part Overview

The HCM1707-470-R is a 47 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 6.8 A continuous current with a maximum DC resistance of 47 mOhm and operates across the temperature range of -55°C to 125°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent inductance values, current ratings, shielding characteristics, and operating temperature ranges align within acceptable engineering tolerances for the application, while maintaining surface mount compatibility and compliance certifications.

Substiute Parts

HCM1707-470-R

Eaton - Electronics DivisionIn Stock: 775HCM1707-470-R Datasheet

Current PartRFQ

PA4344.473NLT

Pulse ElectronicsIn Stock: 2259PA4344.473NLT Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCM1707-470-R is determined by the following criteria:

Primary Matching Parameters:

• Inductance value: 47 µH (exact match required)
• Shielding type: Shielded configuration
• Mounting technology: Surface mount
• Inductance test frequency: 100 kHz

Secondary Compatibility Parameters:

• Current rating: Substitute must equal or exceed 6.8 A
• DC resistance: Substitute must not exceed 47 mOhm maximum
• Operating temperature range: Substitute must cover or exceed -55°C to 125°C
• Compliance: ROHS3 and REACH status alignment

Physical Compatibility:

• Package classification: Nonstandard surface mount
• Height constraint: Maximum seated height 0.276" (7.00 mm)

The PA4344.473NLT meets these substitution criteria through equivalent inductance, shielded construction, surface mount packaging, and compliance certifications, while providing enhanced current handling capability.

Parameter Comparison

Engineering Selection Recommendations

HCM1707-470-R Selection Criteria:

• Applications requiring extended low-temperature operation below -40°C
• Designs with strict DC resistance budget limited to 47 mOhm maximum
• Specifications requiring drum core wirewound construction
• Inventory availability priority for immediate procurement

PA4344.473NLT Selection Criteria:

• Applications operating within -40°C to 125°C temperature range
• Designs benefiting from higher current saturation margin (9.5 A vs. 7.8 A)
• Circuits tolerating DC resistance up to 55 mOhm
• Molded inductor construction preferred for mechanical robustness
• AEC-Q200 automotive qualification requirement
• Higher inventory availability (2165 pcs vs. 716 pcs)

Both parts maintain ROHS3 compliance, REACH unaffected status, and identical inductance test frequency. Selection between these parts depends on application temperature extremes, DC resistance tolerance, and core construction preference rather than functional incompatibility.

Frequently Asked Questions (FAQ)

Q: Can PA4344.473NLT directly replace HCM1707-470-R in all applications?

A: Direct replacement is valid for applications operating within -40°C to 125°C. Applications requiring operation below -40°C require HCM1707-470-R. DC resistance tolerance must be verified; PA4344.473NLT maximum of 55 mOhm exceeds HCM1707-470-R specification of 47 mOhm by 8 mOhm.

Q: What is the inductance tolerance difference between these parts?

A: HCM1707-470-R specifies ±20% inductance tolerance. PA4344.473NLT tolerance is not provided in available documentation. Both parts are tested at 100 kHz.

Q: Are the physical dimensions compatible for PCB layout?

A: Both parts share identical maximum seated height of 0.276" (7.00 mm). Length and width dimensions differ slightly: HCM1707-470-R is 0.677" L × 0.663" W; PA4344.473NLT is 0.697" L × 0.677" W. Verify PCB footprint clearance for the substitute part.

Q: What packaging format difference exists between these parts?

A: HCM1707-470-R is supplied in Cut Tape (CT) format. PA4344.473NLT is supplied in Tape & Reel (TR) format. Reel quantities and handling procedures differ; verify procurement and assembly line compatibility.

Q: Does PA4344.473NLT provide any performance advantage?

A: PA4344.473NLT provides 28% higher current rating (8.7 A vs. 6.8 A) and 27% higher saturation current (9.5 A vs. 7.5 A), offering greater design margin in current-limited applications. DC resistance is 17% higher, which may impact efficiency-sensitive circuits.

Q: Are both parts suitable for automotive applications?

A: PA4344.473NLT carries AEC-Q200 automotive qualification. HCM1707-470-R automotive qualification status is not specified in available data. Automotive design requirements must reference manufacturer datasheets for formal qualification confirmation.