CDH53-181JC Equivalent & Substitute Parts

Part Overview

The CDH53-181JC is a 180 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc., rated for 300 mA with a maximum DC resistance of 2.66Ohm. This surface mount component features a ferrite core and operates across the temperature range of -30°C to 100°C. The part is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

CDH53-181JC

Sumida America Components Inc.In Stock: 1259CDH53-181JC Datasheet

Current PartRFQ

CDH53NP-181JC

Sumida America Components Inc.In Stock: 800CDH53NP-181JC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDH53-181JC is determined by strict equivalence across the following electrical and mechanical parameters:

• Inductance Value: 180 µH at 1 kHz test frequency
• Inductance Tolerance: ±5%
• Current Rating: 300 mA minimum
• DC Resistance: 2.66Ohm maximum
• Core Type: Ferrite drum core, unshielded
• Mounting Configuration: Surface mount
• Physical Footprint: 6.00mm x 5.20mm x 3.20mm maximum height
• Operating Temperature Range: Minimum -30°C to 100°C

The CDH53NP-181JC qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility across all critical parameters.

Parameter Comparison

Engineering Selection Recommendations

The CDH53NP-181JC is the direct equivalent substitute for the obsolete CDH53-181JC. Both components share identical electrical specifications and mechanical dimensions, ensuring direct compatibility in circuit applications.

Key Advantages of CDH53NP-181JC:

• Active Product Status: The substitute maintains current manufacturing and supply chain support, eliminating obsolescence risk.
• Enhanced Compliance: ROHS3 compliance status provides regulatory alignment for new designs and procurement cycles.
• Extended Temperature Range: Operating temperature minimum of -40°C (versus -30°C) provides broader environmental tolerance.
• Standard Packaging: Tape & Reel packaging format supports automated assembly processes and volume production workflows.

The electrical performance, inductance value, current rating, and DC resistance specifications are identical between both parts, confirming functional interchangeability for all circuit applications where the CDH53-181JC was originally specified.

Frequently Asked Questions (FAQ)

Q: Can CDH53NP-181JC be used as a direct replacement for CDH53-181JC in existing designs?

A: Yes. The CDH53NP-181JC provides direct functional equivalence. All critical electrical parameters (180 µH inductance, 300 mA current rating, 2.66Ohm DC resistance) and mechanical dimensions (6.00mm x 5.20mm x 3.20mm) are identical. The substitute is compatible with existing PCB layouts and circuit designs without modification.

Q: What is the difference in operating temperature range between these parts?

A: The CDH53-181JC operates from -30°C to 100°C, while the CDH53NP-181JC operates from -40°C to 100°C. The substitute provides a 10°C lower minimum operating temperature, expanding environmental tolerance for applications requiring extended cold-temperature performance.

Q: Why is the packaging different between the main part and substitute?

A: The CDH53-181JC uses nonstandard packaging, while the CDH53NP-181JC is supplied in Tape & Reel (TR) format. Tape & Reel packaging is the industry standard for surface mount components and supports automated pick-and-place assembly. This difference does not affect electrical or mechanical compatibility.

Q: What is the significance of RoHS compliance status?

A: The CDH53-181JC is RoHS non-compliant, while the CDH53NP-181JC is ROHS3 compliant. ROHS3 compliance indicates the substitute meets current environmental and regulatory requirements for lead-free manufacturing and restricted substance limitations. This is relevant for applications subject to environmental regulations or customer compliance requirements.

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

A: No. Both parts are specified with identical inductance (180 µH at ±5% tolerance), current rating (300 mA), and DC resistance (2.66Ohm maximum). Electrical performance is equivalent across all provided specifications.

Q: What is the moisture sensitivity level for these components?

A: Both the CDH53-181JC and CDH53NP-181JC are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard storage and handling procedures apply without special moisture control requirements.