ELL-6RH180M Equivalent & Substitute Parts

Part Overview

The ELL-6RH180M is an 18 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 800 mA with a DC resistance of 170mOhm. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part is RoHS3 compliant with MSL 1 rating, suitable for surface mount applications in compact form factors.

Substiute Parts

ELL-6RH180M

Panasonic Electronic ComponentsIn Stock: 856ELL-6RH180M Datasheet

Current PartRFQ

CDRH62BNP-180MC-B

Sumida America Components Inc.In Stock: 902CDRH62BNP-180MC-B Datasheet

SimilarRFQ

SRR5028-180Y

Bourns Inc.In Stock: 1664SRR5028-180Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ELL-6RH180M is determined by the following critical parameters:

• Inductance Value: 18 µH (primary electrical requirement)
• Current Rating: Minimum 800 mA (functional requirement)
• DC Resistance: Acceptable range based on circuit design tolerance
• Shielding: Shielded construction (electromagnetic compatibility requirement)
• Mounting Type: Surface mount (form factor requirement)
• Package Compatibility: Nonstandard case with similar footprint dimensions
• Compliance: RoHS3 and MSL 1 rating

The substitute parts listed below meet or exceed the core electrical specifications while maintaining surface mount compatibility and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

CDRH62BNP-180MC-B (Sumida America Components Inc.)

This substitute maintains electrical parity with the original ELL-6RH180M across inductance, current rating, and tolerance specifications. The DC resistance is higher at 270mOhm maximum compared to 170mOhm, which may impact circuit performance in applications sensitive to resistive losses. The part is active in production with RoHS3 compliance and MSL 1 rating. Footprint dimensions are slightly larger (6.60mm x 6.20mm versus 6.40mm x 6.00mm), requiring PCB layout verification. Operating temperature range of -40°C to 100°C is specified.

SRR5028-180Y (Bourns Inc.)

This substitute exceeds the current rating requirement at 1.25 A, providing design margin above the 800 mA specification. The DC resistance is lower at 110mOhm maximum, offering reduced resistive losses. Inductance tolerance is wider at ±30% compared to ±20%. The part features a drum core wirewound construction with active product status and RoHS3 compliance. Footprint is more compact (5.80mm x 5.80mm), potentially offering PCB space advantages. Operating temperature range extends to -40°C to 125°C, providing broader thermal performance.

Both substitutes are active products with current availability and full regulatory compliance, addressing the obsolescence of the original ELL-6RH180M.

Frequently Asked Questions (FAQ)

Q: Can CDRH62BNP-180MC-B be used as a direct replacement for ELL-6RH180M?

A: The CDRH62BNP-180MC-B matches the core electrical specifications (18 µH, 800 mA, ±20% tolerance) and maintains shielded surface mount construction. The higher DC resistance (270mOhm versus 170mOhm) must be evaluated against circuit design requirements. Footprint dimensions are slightly larger and require PCB layout verification.

Q: What are the advantages of SRR5028-180Y over the original part?

A: The SRR5028-180Y provides higher current rating (1.25 A versus 800 mA), lower DC resistance (110mOhm versus 170mOhm), and extended operating temperature range (-40°C to 125°C). The footprint is more compact. The wider inductance tolerance (±30% versus ±20%) may require circuit tolerance analysis.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both CDRH62BNP-180MC-B and SRR5028-180Y are RoHS3 compliant with MSL 1 rating, matching the original ELL-6RH180M compliance status.

Q: Do the substitute parts fit the same PCB footprint?

A: The substitute parts have similar but not identical dimensions. CDRH62BNP-180MC-B is slightly larger (6.60mm x 6.20mm versus 6.40mm x 6.00mm). SRR5028-180Y is more compact (5.80mm x 5.80mm). PCB layout verification is required for each substitute.

Q: Which substitute is recommended for high-temperature applications?

A: SRR5028-180Y supports operating temperatures up to 125°C, compared to CDRH62BNP-180MC-B at 100°C maximum. For applications requiring extended thermal performance, SRR5028-180Y is the appropriate selection.

Q: How does DC resistance affect circuit performance?

A: DC resistance contributes to power dissipation and voltage drop across the inductor. SRR5028-180Y (110mOhm) offers the lowest resistance, followed by ELL-6RH180M (170mOhm), then CDRH62BNP-180MC-B (270mOhm). Circuit design must account for these differences in applications sensitive to resistive losses.