ELL-ATP4R7NB Equivalent & Substitute Parts

Part Overview

The ELL-ATP4R7NB is a 4.7 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 5 A continuous current with 9.1 mOhm DC resistance. This component features nonstandard corner terminals and surface mount packaging in a 10.00mm × 10.00mm footprint. The product is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs.

Substiute Parts

ELL-ATP4R7NB

Panasonic Electronic ComponentsIn Stock: 1204ELL-ATP4R7NB Datasheet

Current PartRFQ

SRU1048-4R7Y

Bourns Inc.In Stock: 1695SRU1048-4R7Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ELL-ATP4R7NB is determined by the following critical parameters:

• Inductance Value: 4.7 µH with ±30% tolerance
• Current Rating: Minimum 5 A continuous current capability
• Saturation Current (Isat): Minimum 4.5 A
• DC Resistance (DCR): Nominal 9.1 mOhm (acceptable range within component tolerances)
• Shielding: Shielded construction required
• Mounting: Surface mount configuration
• Footprint Compatibility: 10.00mm × 10.00mm base dimensions
• Compliance: ROHS3 compliant, MSL 1

The SRU1048-4R7Y from Bourns Inc. meets all substitution criteria with equivalent inductance, superior current rating (5.5 A), comparable DCR (9.5 mOhm), and identical shielding and mounting specifications.

Parameter Comparison

Engineering Selection Recommendations

The SRU1048-4R7Y is a direct functional substitute for the obsolete ELL-ATP4R7NB. Both components are ROHS3 compliant with MSL 1 rating, ensuring regulatory and environmental compatibility. The Bourns component offers active product status with documented operating temperature range (-40°C ~ 125°C), superior current rating (5.5 A vs. 5 A), and marginally higher saturation current (4.75 A vs. 4.5 A). The DCR differential (9.5 mOhm vs. 9.1 mOhm) falls within acceptable component tolerance ranges. Height difference (5.10mm vs. 4.50mm) requires PCB layout verification for clearance constraints. Both components share identical footprint dimensions (10.00mm × 10.00mm) and surface mount configuration.

Frequently Asked Questions (FAQ)

Q: Can the SRU1048-4R7Y directly replace the ELL-ATP4R7NB in existing designs?

A: Yes, provided PCB layout accommodates the increased seated height of 5.10mm versus 4.50mm. Electrical parameters are compatible within design tolerances.

Q: What is the significance of the ±30% inductance tolerance?

A: This tolerance band defines the acceptable inductance range (3.29 µH to 6.11 µH). Both components share this tolerance specification, ensuring equivalent circuit behavior within the specified range.

Q: How do the current ratings compare?

A: The ELL-ATP4R7NB is rated for 5 A continuous current with 4.5 A saturation current. The SRU1048-4R7Y provides 5.5 A continuous and 4.75 A saturation current, offering improved headroom for current-limited applications.

Q: Are there packaging differences?

A: The ELL-ATP4R7NB features nonstandard corner terminals, while the SRU1048-4R7Y uses standard nonstandard package configuration. Both are surface mount with identical 10.00mm × 10.00mm footprints. Verify terminal geometry compatibility with existing PCB pads.

Q: What is the DC resistance impact?

A: DCR of 9.1 mOhm (ELL-ATP4R7NB) versus 9.5 mOhm (SRU1048-4R7Y) represents a 0.4 mOhm difference. This 4.4% variance is negligible for most applications and falls within typical component manufacturing tolerances.

Q: Are both components RoHS compliant?

A: Yes, both the ELL-ATP4R7NB and SRU1048-4R7Y are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level), meeting current environmental and regulatory requirements.