CDR105-330MC Equivalent & Substitute Parts

Part Overview

The CDR105-330MC is a 33 µH shielded surface mount inductor manufactured by Sumida America Components Inc. with a current rating of 1.39 A and maximum DC resistance of 120mOhm. This component is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to support ongoing design requirements, procurement continuity, and system maintenance where the original part is no longer in active production.

Substiute Parts

CDR105-330MC

Sumida America Components Inc.In Stock: 1179CDR105-330MC Datasheet

Current PartRFQ

CDR105NP-330MC

Sumida America Components Inc.In Stock: 798CDR105NP-330MC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDR105-330MC is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Inductance value: 33 µH
• Inductance tolerance: -15%, +20%
• Current rating: 1.39 A
• DC resistance: 120mOhm maximum
• Shielding type: Shielded

Mechanical Parameters:

• Mounting type: Surface Mount
• Physical dimensions: 0.394" L x 9.20mm W (10.00mm x 9.20mm)
• Maximum seated height: 0.217" (5.50mm)
• Package classification: Nonstandard

Environmental Parameters:

• Self-resonant frequency: 16MHz
• Test frequency: 2.52 MHz
• Moisture sensitivity level: 1 (Unlimited)

A substitute part must match all electrical specifications, maintain identical physical dimensions and mounting footprint, and satisfy the environmental operating requirements of the application. Packaging format (tape & reel versus bulk) does not affect electrical or mechanical substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

CDR105NP-330MC as Primary Substitute:

The CDR105NP-330MC is a direct electrical and mechanical equivalent to the CDR105-330MC. Both components are manufactured by Sumida America Components Inc. within the CDR105 series and share identical inductance, current rating, DC resistance, shielding characteristics, and physical dimensions.

The CDR105NP-330MC offers the following advantages:

• Active Product Status: The substitute maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete CDR105-330MC.

• Extended Operating Temperature Range: The CDR105NP-330MC operates across -40°C to 100°C, compared to the main part's -25°C to 70°C range. This extended range accommodates broader environmental conditions without performance degradation.

• RoHS3 Compliance: The CDR105NP-330MC meets ROHS3 compliance requirements, whereas the CDR105-330MC is RoHS non-compliant. This distinction is critical for applications subject to environmental regulations and procurement standards.

• Packaging Flexibility: The substitute is available in Tape & Reel (TR) format, supporting automated assembly processes and high-volume manufacturing workflows.

Both parts maintain identical electrical performance, mechanical fit, and environmental stability at the specified test frequency of 2.52 MHz and self-resonant frequency of 16MHz. Selection between these parts depends on compliance requirements, operating temperature specifications, and procurement format preferences.

Frequently Asked Questions (FAQ)

Q: Can CDR105NP-330MC replace CDR105-330MC in existing designs?

A: Yes. The CDR105NP-330MC is electrically and mechanically equivalent. Both components have identical inductance (33 µH), current rating (1.39 A), DC resistance (120mOhm max), shielding type, and physical dimensions (10.00mm x 9.20mm x 5.50mm max height). The substitute will function identically in the same circuit application and PCB footprint.

Q: What is the difference in operating temperature range?

A: The CDR105-330MC operates from -25°C to 70°C, while the CDR105NP-330MC operates from -40°C to 100°C. If your application requires operation below -25°C or above 70°C, the CDR105NP-330MC is required. For applications within the -25°C to 70°C window, both parts are functionally equivalent.

Q: Why is RoHS compliance important for this substitution?

A: The CDR105NP-330MC is ROHS3 compliant, while the CDR105-330MC is RoHS non-compliant. Many industries, particularly consumer electronics and automotive, require RoHS-compliant components for regulatory compliance and market access. If your application or customer requirements mandate RoHS compliance, the CDR105NP-330MC is the appropriate selection.

Q: Does packaging format affect electrical performance?

A: No. The CDR105-330MC is supplied in bulk packaging, while the CDR105NP-330MC is supplied in Tape & Reel (TR) format. Packaging format does not affect electrical characteristics, inductance value, current rating, or DC resistance. Packaging selection is determined by manufacturing process requirements and assembly automation capabilities.

Q: Are the physical dimensions identical?

A: Yes. Both the CDR105-330MC and CDR105NP-330MC have identical dimensions: 0.394" length x 0.362" width (10.00mm x 9.20mm) with a maximum seated height of 0.217" (5.50mm). The components are mechanically interchangeable on the same PCB footprint.

Q: What is the self-resonant frequency specification?

A: Both components have a self-resonant frequency of 16MHz. This specification defines the frequency at which the inductor's inductive reactance equals its parasitic capacitive reactance. At frequencies approaching or exceeding 16MHz, the component transitions from inductive to capacitive behavior.

Q: Can I use these inductors in high-frequency applications?

A: The inductance is tested at 2.52 MHz. Both components maintain their 33 µH specification at this test frequency. Applications operating near or above the 16MHz self-resonant frequency require detailed frequency response analysis to confirm performance, as inductive behavior degrades at frequencies approaching resonance.