ELL-CTV820M Equivalent & Substitute Parts

Part Overview

The ELL-CTV820M is a 82 µH shielded drum core, wirewound inductor manufactured by Panasonic Electronic Components. Rated for 1.4 A with 120mOhm DC resistance, this component is designed for surface mount applications in the nonstandard package format. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, production continuity, and component sourcing.

Substiute Parts

ELL-CTV820M

Panasonic Electronic ComponentsIn Stock: 1145ELL-CTV820M Datasheet

Current PartRFQ

SRR1210-820M

Bourns Inc.In Stock: 2373SRR1210-820M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SRR1210-820M from Bourns Inc. qualifies as a functional equivalent based on the following critical parameters:

Matching Parameters:

• Inductance value: 82 µH (identical)
• Inductance tolerance: ±20% (identical)
• Core material: Ferrite (identical)
• Shielding: Shielded (identical)
• Type: Drum Core, Wirewound (identical)
• Mounting type: Surface Mount (identical)
• Physical footprint: 12.00mm L x 12.00mm W (identical)
• Test frequency: 100 kHz (identical)
• RoHS compliance: ROHS3 Compliant (identical)
• MSL rating: 1 (Unlimited) (identical)

Allowable Variations: The SRR1210-820M exceeds the current rating specification (2.8 A vs. 1.4 A) and provides lower DC resistance (112mOhm Max vs. 120mOhm), both of which represent performance improvements within acceptable substitution parameters. The increased height (10.00mm vs. 4.50mm) must be verified against mechanical constraints in the target application.

Parameter Comparison

Engineering Selection Recommendations

The SRR1210-820M is suitable as a direct substitute for the obsolete ELL-CTV820M based on electrical equivalence and regulatory compliance. Both components meet ROHS3 requirements and share identical inductance, tolerance, core material, and shielding characteristics.

The Bourns SRR1210-820M offers superior electrical performance with doubled current rating capacity and reduced DC resistance, making it a conservative substitution choice. The component is currently in active production status with confirmed inventory availability.

The primary design consideration is the increased component height (10.00mm vs. 4.50mm). PCB layout and mechanical clearance must be verified before implementation to ensure compatibility with existing board designs and enclosure constraints.

Frequently Asked Questions (FAQ)

Q: Can the SRR1210-820M directly replace the ELL-CTV820M in existing designs?

A: Electrical substitution is valid based on matching inductance, tolerance, core material, and shielding. Mechanical verification is required due to the 5.50mm height difference. PCB layout and enclosure clearance must be confirmed before production implementation.

Q: What are the key parameters that determine substitution eligibility?

A: Inductance value (82 µH), inductance tolerance (±20%), core material (ferrite), shielding type (shielded), component type (drum core wirewound), and mounting method (surface mount) must remain constant. Current rating and DC resistance may be exceeded without compromising functionality.

Q: Are both components RoHS compliant?

A: Yes. Both the ELL-CTV820M and SRR1210-820M are ROHS3 compliant and carry MSL rating 1 (Unlimited), meeting current environmental and reliability standards.

Q: What is the availability status of each component?

A: The ELL-CTV820M is obsolete with limited remaining inventory (1121 pcs). The SRR1210-820M is in active production status with higher inventory availability (2300 pcs), making it the recommended choice for new designs and ongoing production.

Q: Does the lower DC resistance of the SRR1210-820M affect circuit performance?

A: Lower DC resistance (112mOhm vs. 120mOhm) reduces resistive losses and heat generation, representing an improvement over the original specification. This change is compatible with existing circuit designs without requiring modifications.