CDH113NP-101KC Equivalent & Substitute Parts

Part Overview

The CDH113NP-101KC is a 100 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 610 mA continuous current with a maximum DC resistance of 430mOhm. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

CDH113NP-101KC

Sumida America Components Inc.In Stock: 871CDH113NP-101KC Datasheet

Current PartRFQ

SDR1030-101K

Bourns Inc.In Stock: 961SDR1030-101K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH113NP-101KC is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 100 µH with ±10% tolerance
• Core type: Ferrite drum core, unshielded construction
• Mounting: Surface mount configuration
• Current rating: Minimum 610 mA continuous current capability
• DC resistance: Maximum 430mOhm to maintain circuit performance

Secondary Compatibility Factors:

• Operating temperature range must encompass or exceed -30°C ~ 100°C
• RoHS3 compliance required for regulatory alignment
• Moisture sensitivity level MSL 1 acceptable
• Package footprint and height must accommodate existing PCB layout constraints

The SDR1030-101K from Bourns Inc. meets these substitution criteria with enhanced electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SDR1030-101K from Bourns Inc. is the qualified equivalent substitute for the obsolete CDH113NP-101KC. Selection is based on the following engineering factors:

Electrical Equivalence: The SDR1030-101K maintains the same 100 µH inductance value with identical ±10% tolerance. The substitute provides a higher current rating of 700 mA, exceeding the original 610 mA requirement. The DC resistance of 540mOhm is within acceptable circuit performance margins relative to the 430mOhm maximum specification.

Regulatory Compliance: Both components are ROHS3 compliant and carry MSL 1 moisture sensitivity rating, ensuring compatibility with standard manufacturing and storage protocols.

Product Availability: The SDH113NP-101KC is classified as obsolete with limited inventory. The SDR1030-101K is an active product with established supply chain availability, supporting long-term design continuity.

Physical Integration: The SDR1030-101K features a slightly smaller footprint (10.00mm x 10.00mm versus 11.20mm x 11.00mm) and lower seated height (3.30mm versus 3.70mm), providing improved PCB layout flexibility. Verification of PCB land pattern compatibility is required prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can the SDR1030-101K directly replace the CDH113NP-101KC without circuit redesign?

A: The SDR1030-101K meets all primary electrical specifications for the CDH113NP-101KC. The higher current rating and extended operating temperature range provide enhanced performance margins. Physical footprint differences require PCB layout verification to confirm land pattern compatibility.

Q: What is the significance of the higher DC resistance in the SDR1030-101K (540mOhm versus 430mOhm)?

A: The 110mOhm increase in maximum DC resistance falls within acceptable circuit performance tolerances for most applications. Circuit simulation or empirical testing is necessary to confirm acceptability for specific power dissipation or efficiency requirements.

Q: Why is the CDH113NP-101KC classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The SDR1030-101K from Bourns Inc. is an active product with ongoing manufacturing support and supply availability.

Q: Are there packaging differences between these components?

A: The CDH113NP-101KC is supplied in nonstandard packaging. The SDR1030-101K is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes and provides improved handling and storage characteristics.

Q: What compliance certifications apply to both components?

A: Both the CDH113NP-101KC and SDR1030-101K are ROHS3 compliant and carry ECCN EAR99 classification. The SDR1030-101K additionally carries REACH Unaffected status.

Q: How do the operating temperature ranges compare?

A: The CDH113NP-101KC operates from -30°C to 100°C. The SDR1030-101K extends this range to -40°C to 125°C, providing broader environmental compatibility for applications requiring extended temperature performance.