ELL-6RH6R2M Equivalent & Substitute Parts

Part Overview

The ELL-6RH6R2M is a 6.2 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 1.4 A with 62mOhm DC resistance. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates at 100 kHz inductance test frequency and is housed in a nonstandard surface mount package measuring 6.40mm × 6.00mm × 2.80mm (max height).

Substiute Parts

ELL-6RH6R2M

Panasonic Electronic ComponentsIn Stock: 817ELL-6RH6R2M Datasheet

Current PartRFQ

SRR5028-6R2Y

Bourns Inc.In Stock: 1703SRR5028-6R2Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELL-6RH6R2M is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 6.2 µH (exact match required)
• Shielding type: Shielded (electromagnetic containment requirement)
• Mounting type: Surface Mount (PCB assembly compatibility)
• Package classification: Nonstandard (physical footprint constraint)

Secondary Compatibility Factors:

• Current rating: Substitute must equal or exceed 1.4 A
• DC resistance: Lower or equal values are acceptable
• Inductance tolerance: ±20% or tighter acceptable
• RoHS3 compliance: Required for regulatory alignment
• MSL rating: 1 (Unlimited) or equivalent

The SRR5028-6R2Y meets all primary matching criteria and exceeds secondary requirements, qualifying as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The SRR5028-6R2Y is a qualified substitute for the ELL-6RH6R2M based on the following engineering factors:

Compliance & Regulatory Status: Both parts maintain ROHS3 compliance and MSL rating 1 (Unlimited), ensuring equivalent environmental and moisture handling requirements. The substitute is an active product with ongoing manufacturer support, eliminating obsolescence risk.

Electrical Performance: The SRR5028-6R2Y delivers superior electrical characteristics: 2.2 A current rating (57% higher than the 1.4 A main part) and 45mOhm maximum DC resistance (27% lower than 62mOhm). These improvements reduce thermal dissipation and provide design margin for current-limited applications.

Physical Compatibility: The substitute package (5.80mm × 5.80mm × 3.00mm) is slightly smaller in footprint and marginally taller than the main part (6.40mm × 6.00mm × 2.80mm). PCB layout verification is required to confirm height clearance in constrained assemblies.

Functional Equivalence: Both inductors operate at 100 kHz test frequency with shielded wirewound construction. The SRR5028-6R2Y's ferrite drum core design maintains electromagnetic shielding performance required for the application.

Frequently Asked Questions (FAQ)

Q: Can the SRR5028-6R2Y be used as a direct replacement without PCB modification?

A: The SRR5028-6R2Y footprint (5.80mm × 5.80mm) is smaller than the ELL-6RH6R2M (6.40mm × 6.00mm), allowing placement in the same PCB pad area. However, the height difference (3.00mm vs. 2.80mm max) requires clearance verification for components or enclosures in close proximity.

Q: What is the impact of the ±30% tolerance on the SRR5028-6R2Y versus ±20% on the ELL-6RH6R2M?

A: The wider tolerance on the substitute part reflects manufacturing process differences between Bourns and Panasonic. For applications requiring tight inductance control, circuit tuning or component selection may be necessary. Both parts meet the 6.2 µH nominal specification.

Q: Is the lower DC resistance of the SRR5028-6R2Y (45mOhm max vs. 62mOhm) beneficial?

A: Lower DC resistance reduces I²R losses and thermal generation, improving efficiency. This is advantageous in power delivery and filtering applications. No circuit redesign is required; the substitute performs equivalently or better in this parameter.

Q: Are there any thermal or frequency response differences between the two inductors?

A: The SRR5028-6R2Y specifies operating temperature range (-40°C ~ 125°C) and self-resonant frequency (39MHz), providing additional design reference data. The ELL-6RH6R2M does not specify these parameters. Both parts are tested at 100 kHz, the standard inductance measurement frequency.

Q: What is the inventory status for each part?

A: The ELL-6RH6R2M (obsolete) has 773 pcs in stock. The SRR5028-6R2Y (active) has 1600 pcs available, ensuring long-term supply continuity for production and design transitions.