CDH113NP-270LC Equivalent & Substitute Parts

Part Overview

The CDH113NP-270LC is a 27 µH unshielded wirewound inductor manufactured by Sumida America Components Inc., rated for 1.16 A maximum current with 110mOhm DC resistance. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement continuity. The part operates across the temperature range of -30°C to 100°C and meets ROHS3 compliance requirements.

Substiute Parts

CDH113NP-270LC

Sumida America Components Inc.In Stock: 1006CDH113NP-270LC Datasheet

Current PartRFQ

CDH115NP-270LC

Sumida America Components Inc.In Stock: 804CDH115NP-270LC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH113NP-270LC is determined by strict equivalence across the following critical parameters:

Inductance Value: Both the main part and substitute must maintain 27 µH inductance at 1 kHz test frequency with ±15% tolerance to ensure circuit performance equivalence.

Mounting and Package Compatibility: Both parts utilize surface mount technology with nonstandard package dimensions of 11.20mm L x 11.00mm W, ensuring mechanical compatibility on existing PCB layouts.

Electrical Performance Envelope: The substitute part must operate within the same unshielded configuration and support the required current and impedance characteristics of the application circuit.

Compliance and Environmental Ratings: Both parts must maintain ROHS3 compliance and MSL 1 moisture sensitivity classification for manufacturing and storage compatibility.

The CDH115NP-270LC qualifies as a direct substitute based on these parameters while offering improved electrical characteristics within the same physical footprint.

Parameter Comparison

Engineering Selection Recommendations

The CDH115NP-270LC is the qualified substitute for the obsolete CDH113NP-270LC based on the following engineering criteria:

Inductance Equivalence: Both parts deliver identical 27 µH inductance at 1 kHz with ±15% tolerance, maintaining circuit inductance specifications without design modification.

Footprint Compatibility: Identical lateral dimensions (11.20mm L x 11.00mm W) ensure direct PCB layout compatibility. The increased seated height of 5.20mm versus 3.70mm requires verification of vertical clearance in the application assembly.

Electrical Performance Enhancement: The CDH115NP-270LC provides superior electrical characteristics with 1.84 A current rating (versus 1.16 A) and reduced DC resistance of 70mOhm maximum (versus 110mOhm maximum), resulting in lower power dissipation and improved thermal performance.

Compliance Continuity: Both parts maintain ROHS3 compliance and MSL 1 moisture sensitivity classification, ensuring manufacturing process compatibility and storage requirements remain unchanged.

Product Status: Selection of the active CDH115NP-270LC eliminates obsolescence risk and ensures long-term component availability through standard distribution channels.

Frequently Asked Questions (FAQ)

Q: Can the CDH115NP-270LC be used as a direct replacement for CDH113NP-270LC in existing designs?

A: The CDH115NP-270LC qualifies as a substitute based on matching inductance value, tolerance, shielding configuration, and mounting type. The increased seated height (5.20mm versus 3.70mm) must be verified against available vertical clearance in the PCB assembly. No circuit redesign is required if vertical space permits the taller component.

Q: What are the key differences between these two inductors?

A: The primary differences are: (1) Product status—CDH113NP-270LC is obsolete while CDH115NP-270LC is active; (2) Current rating—1.84 A versus 1.16 A; (3) DC resistance—70mOhm versus 110mOhm; (4) Core construction—drum core ferrite versus standard wirewound; (5) Seated height—5.20mm versus 3.70mm; (6) Operating temperature lower limit—-40°C versus -30°C; (7) Packaging—Tape & Reel versus bulk.

Q: Are there any thermal performance considerations when substituting these parts?

A: The CDH115NP-270LC exhibits lower DC resistance (70mOhm maximum) compared to the CDH113NP-270LC (110mOhm maximum). At equivalent current levels, this results in reduced resistive power dissipation and lower operating temperature. The extended operating temperature range of -40°C to 100°C provides additional thermal margin.

Q: Does the packaging format change affect procurement or assembly?

A: The CDH115NP-270LC is supplied in Tape & Reel (TR) format, whereas the CDH113NP-270LC was supplied in bulk packaging. Tape & Reel format is standard for automated surface mount assembly and typically offers improved component protection and handling efficiency. Bulk format availability for the CDH115NP-270LC should be confirmed with the supplier if required.

Q: What compliance certifications apply to both parts?

A: Both the CDH113NP-270LC and CDH115NP-270LC are ROHS3 compliant and classified as MSL 1 (Unlimited moisture sensitivity level). Both parts carry ECCN EAR99 and HTSUS 8504.50.4000 classifications. These certifications ensure compatibility with current environmental and export regulations.