CDH113NP-820KC Equivalent & Substitute Parts

Part Overview

The CDH113NP-820KC is a 82 µH unshielded wirewound inductor manufactured by Sumida America Components Inc., rated for 660 mA continuous current with a maximum DC resistance of 380mOhm. This component is classified as obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductance value and current rating specification.

Substiute Parts

CDH113NP-820KC

Sumida America Components Inc.In Stock: 1151CDH113NP-820KC Datasheet

Current PartRFQ

CDH115NP-820KC

Sumida America Components Inc.In Stock: 844CDH115NP-820KC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDH113NP-820KC is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 82 µH (±10% tolerance band)
• Mounting type: Surface Mount
• Physical footprint compatibility: 11.20mm L x 11.00mm W base dimensions
• Shielding configuration: Unshielded

Secondary Compatibility Factors:

• Current rating must equal or exceed 660 mA minimum requirement
• DC resistance must not exceed 380mOhm maximum specification
• Operating temperature range must encompass or exceed -30°C ~ 100°C
• RoHS3 compliance and MSL rating must be maintained

The CDH115NP-820KC satisfies all primary matching criteria and exceeds secondary compatibility requirements, qualifying it as a direct substitute for the obsolete CDH113NP-820KC.

Parameter Comparison

Engineering Selection Recommendations

The CDH115NP-820KC is the qualified substitute for the obsolete CDH113NP-820KC based on the following engineering factors:

Compliance & Availability: The CDH115NP-820KC maintains ROHS3 compliance and MSL Level 1 rating, ensuring regulatory alignment with the original component. Active product status guarantees ongoing supply availability and manufacturing support, eliminating obsolescence risk associated with the CDH113NP-820KC.

Electrical Performance: The substitute part delivers superior electrical characteristics within the same inductance specification. Current rating of 1.04 A exceeds the 660 mA requirement by 57.6%, providing additional thermal margin. DC resistance of 210mOhm maximum is 44.7% lower than the 380mOhm maximum of the original part, resulting in reduced power dissipation and improved efficiency.

Thermal Operating Range: The CDH115NP-820KC extends the lower temperature limit to -40°C, expanding the operational envelope beyond the original -30°C specification while maintaining the 100°C upper limit.

Physical Considerations: Both parts share identical footprint dimensions (11.20mm L x 11.00mm W), ensuring PCB layout compatibility. The substitute exhibits a maximum seated height of 5.20mm compared to 3.70mm for the original part, representing a 1.50mm increase. This height differential must be evaluated against available board clearance and component stacking requirements in the target application.

Frequently Asked Questions (FAQ)

Q: Can the CDH115NP-820KC be used as a direct replacement for the CDH113NP-820KC in existing designs?

A: The CDH115NP-820KC is electrically compatible as a substitute. The identical inductance value (82 µH), tolerance (±10%), and footprint dimensions (11.20mm x 11.00mm) support direct PCB placement. However, the increased seated height (5.20mm vs. 3.70mm) requires verification of available vertical clearance in the assembly. If height constraints exist, alternative solutions must be evaluated.

Q: What are the advantages of substituting to the CDH115NP-820KC?

A: The substitute part offers three primary advantages: (1) Active product status ensures reliable long-term supply and manufacturing support; (2) Superior current rating (1.04 A vs. 660 mA) provides 57.6% additional capacity; (3) Lower DC resistance (210mOhm vs. 380mOhm) reduces power dissipation by 44.7%, improving thermal performance and efficiency.

Q: Are there any electrical performance differences between these parts?

A: Both inductors maintain the same 82 µH inductance value and ±10% tolerance at 1 kHz test frequency. The CDH115NP-820KC exhibits lower DC resistance (210mOhm max vs. 380mOhm max), which reduces resistive losses and heat generation. This represents an improvement in electrical performance rather than a compromise.

Q: What is the impact of the height difference on PCB design?

A: The CDH115NP-820KC has a maximum seated height of 5.20mm compared to 3.70mm for the CDH113NP-820KC, a difference of 1.50mm. This increase must be accommodated within the available vertical clearance on the PCB. If the design has height constraints due to enclosure dimensions or component stacking, this difference must be evaluated during the substitution assessment.

Q: Are both parts RoHS compliant?

A: Yes, both the CDH113NP-820KC and CDH115NP-820KC are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, ensuring regulatory compliance and environmental safety standards are maintained.

Q: What is the packaging difference between these parts?

A: The CDH113NP-820KC is supplied in standard packaging, while the CDH115NP-820KC is available in Tape & Reel (TR) format. Tape & Reel packaging is standard for high-volume surface mount assembly operations and does not affect component functionality or performance.