ELL-6RH101M Equivalent & Substitute Parts

Part Overview

The ELL-6RH101M is a 100 µH shielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 300 mA with 1 Ohm DC resistance. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The part is surface-mounted in a nonstandard package measuring 6.40mm × 6.00mm with a maximum seated height of 2.80mm. RoHS3 compliance and MSL Level 1 rating ensure compatibility with modern manufacturing processes.

Substiute Parts

ELL-6RH101M

Panasonic Electronic ComponentsIn Stock: 877ELL-6RH101M Datasheet

Current PartRFQ

B82462G4104M000

EPCOS - TDK ElectronicsIn Stock: 14600B82462G4104M000 Datasheet

SimilarRFQ

SRR5028-101Y

Bourns Inc.In Stock: 5080SRR5028-101Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ELL-6RH101M are qualified based on the following electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Inductance value: 100 µH (exact match required)
• Inductance test frequency: 100 kHz (measurement standard)
• Shielding: Shielded construction (electromagnetic containment requirement)
• Type: Wirewound or drum core wirewound (functional equivalence)
• Mounting type: Surface Mount (assembly compatibility)

Mechanical Compatibility Criteria:

• Package classification: Nonstandard (footprint compatibility)
• Physical dimensions: Comparable to 6.40mm × 6.00mm footprint
• Height: Maximum seated height ≤ 3.00mm (PCB clearance tolerance)

Operational Criteria:

• Current rating: ≥ 300 mA (equal or higher capacity)
• DC resistance: ≤ 1 Ohm (equal or lower resistance)
• RoHS3 compliance (regulatory requirement)
• MSL Level 1 (moisture sensitivity compatibility)

The two substitute parts listed below meet these criteria while offering improved current handling and reduced DC resistance compared to the original part.

Parameter Comparison

Engineering Selection Recommendations

B82462G4104M000 (EPCOS - TDK Electronics)

This substitute provides superior electrical performance with 530 mA current rating and 580 mOhm maximum DC resistance. The part is actively manufactured and carries AEC-Q200 automotive qualification, indicating rigorous reliability testing. RoHS3 compliance and MSL Level 1 rating match the original specification. Physical dimensions (6.30mm × 6.30mm × 3.00mm) are comparable to the original footprint with minimal height increase. The ferrite drum core construction provides shielding equivalent to the original wirewound design. This part is suitable for applications requiring higher current capacity or lower power dissipation than the original ELL-6RH101M.

SRR5028-101Y (Bourns Inc.)

This substitute offers 450 mA current rating and 480 mOhm maximum DC resistance in an actively manufactured part. The smaller footprint (5.80mm × 5.80mm) provides space savings while maintaining the 3.00mm maximum height. RoHS3 compliance and MSL Level 1 rating are equivalent to the original. The inductance tolerance is ±30% compared to the original ±20%, which may require circuit validation in tolerance-sensitive applications. Operating temperature range of -40°C ~ 125°C covers standard industrial applications. This part is suitable for space-constrained designs where the reduced footprint provides layout advantages.

Frequently Asked Questions (FAQ)

Q: Can B82462G4104M000 and SRR5028-101Y be used interchangeably with ELL-6RH101M?

A: Both parts meet the core electrical requirements: 100 µH inductance at 100 kHz test frequency, shielded construction, and surface mount compatibility. Both exceed the original 300 mA current rating and provide lower DC resistance. Physical dimensions are comparable within standard PCB layout tolerances. However, circuit validation is required to confirm performance in the specific application, particularly regarding frequency response and thermal characteristics.

Q: What is the impact of different DC resistance values?

A: The original ELL-6RH101M specifies 1 Ohm DCR. B82462G4104M000 provides 580 mOhm maximum, and SRR5028-101Y provides 480 mOhm maximum. Lower DC resistance reduces power dissipation and heat generation. In applications where the inductor carries continuous current, the substitute parts will generate less heat. Circuit designs that depend on the original 1 Ohm resistance for current limiting or impedance matching must be re-evaluated.

Q: Are there footprint compatibility concerns?

A: The original part measures 6.40mm × 6.00mm with 2.80mm height. B82462G4104M000 measures 6.30mm × 6.30mm with 3.00mm height. SRR5028-101Y measures 5.80mm × 5.80mm with 3.00mm height. Both substitutes fit within standard PCB layout tolerances for nonstandard packages. The height increase of 0.20mm for both substitutes must be verified against PCB clearance requirements and component stacking constraints.

Q: What is the significance of inductance tolerance differences?

A: The original ELL-6RH101M specifies ±20% tolerance. SRR5028-101Y specifies ±30% tolerance. B82462G4104M000 maintains ±20% tolerance. In circuits where inductance value directly affects frequency response, filtering characteristics, or impedance matching, the wider tolerance of the Bourns part may require circuit re-tuning or validation testing.

Q: Why is the original part obsolete?

A: The ELL-6RH101M is classified as obsolete by Panasonic Electronic Components. Both substitute parts are actively manufactured, ensuring long-term availability and supply chain stability. Active manufacturing status also indicates ongoing quality control and compliance with current regulatory standards.

Q: Are RoHS3 and MSL ratings equivalent across all three parts?

A: Yes. All three parts carry RoHS3 compliance and MSL Level 1 (Unlimited) rating. This ensures compatibility with lead-free soldering processes and eliminates moisture sensitivity concerns during storage and handling.