RCR108DNP-470M Equivalent & Substitute Parts

Part Overview

The RCR108DNP-470M is a 47 µH shielded inductor manufactured by Sumida America Components Inc., rated for 1.28 A maximum current with 140mOhm DC resistance. This through-hole radial component operates across the -40°C to 85°C temperature range and features ferrite core construction with shielding for electromagnetic interference suppression.

The RCR108DNP-470M is classified as obsolete. Locating equivalent or substitute components becomes necessary when original stock is depleted or when design flexibility permits selection of functionally compatible alternatives that meet or exceed the electrical and mechanical specifications required for the application.

Substiute Parts

RCR108DNP-470M

Sumida America Components Inc.In Stock: 770RCR108DNP-470M Datasheet

Current PartRFQ

RCR110DNP-470L

Sumida America Components Inc.In Stock: 854RCR110DNP-470L Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RCR108DNP-470M is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Criteria:

• Inductance value: 47 µH (fixed requirement)
• Core material: Ferrite (fixed requirement)
• Shielding: Shielded (fixed requirement)
• Mounting type: Through Hole (fixed requirement)
• Package configuration: Radial (fixed requirement)
• Operating temperature range: -40°C to 85°C (fixed requirement)
• RoHS compliance: ROHS3 Compliant (fixed requirement)

Allowable Parameter Variations:

• Current rating: Substitute must equal or exceed 1.28 A
• DC resistance: Substitute must equal or be lower than 140mOhm
• Inductance tolerance: Substitute tolerance must be ±20% or tighter
• Product status: Active status preferred for long-term availability

The RCR110DNP-470L meets all mandatory equivalence criteria and demonstrates improved electrical performance through higher current rating (1.62 A) and lower DC resistance (100mOhm Max), while maintaining identical inductance, core material, shielding, mounting configuration, and temperature range specifications.

Parameter Comparison

Engineering Selection Recommendations

The RCR110DNP-470L serves as a direct functional substitute for the obsolete RCR108DNP-470M based on electrical and mechanical compatibility. Both components are manufactured by Sumida America Components Inc. and share identical inductance values, ferrite core construction, shielding characteristics, through-hole radial mounting configuration, and operating temperature specifications.

The RCR110DNP-470L provides performance advantages over the main part: current rating increases from 1.28 A to 1.62 A, and DC resistance decreases from 140mOhm to 100mOhm. Inductance tolerance tightens from ±20% to ±15%. These improvements enhance thermal performance and reduce power dissipation in the inductor.

The RCR110DNP-470L is classified as active product status, ensuring continued availability and supply chain stability compared to the obsolete RCR108DNP-470M. Both components maintain ROHS3 compliance and MSL Level 1 moisture sensitivity rating.

Physical dimensions are compatible: both components measure 0.394" (10.00mm) in diameter. The substitute component height increases from 0.335" (8.50mm) to 0.413" (10.50mm). PCB layout verification is required to confirm vertical clearance availability in the target application.

Frequently Asked Questions (FAQ)

Q: Can the RCR110DNP-470L directly replace the RCR108DNP-470M in existing designs?

A: The RCR110DNP-470L is electrically and mechanically compatible with the RCR108DNP-470M for applications requiring 47 µH inductance with ferrite core shielding and through-hole radial mounting. Verification of PCB vertical clearance is necessary due to the 0.078" (2.00mm) height increase.

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

A: The primary differences are: (1) Current rating increases from 1.28 A to 1.62 A; (2) DC resistance decreases from 140mOhm to 100mOhm; (3) Inductance tolerance tightens from ±20% to ±15%; (4) Seated height increases from 0.335" to 0.413"; (5) Product status changes from obsolete to active.

Q: Are both components RoHS compliant?

A: Yes. Both the RCR108DNP-470M and RCR110DNP-470L are ROHS3 compliant and carry MSL Level 1 moisture sensitivity rating.

Q: What is the significance of the lower DC resistance in the substitute part?

A: Lower DC resistance (100mOhm versus 140mOhm) reduces resistive power dissipation in the inductor, resulting in lower operating temperature and improved thermal performance under the same current conditions.

Q: Does the tighter inductance tolerance of the RCR110DNP-470L affect circuit performance?

A: Tighter tolerance (±15% versus ±20%) provides improved inductance value consistency, which may benefit applications with strict frequency response or impedance matching requirements.

Q: Is the packaging format different between these components?

A: Both components use through-hole radial mounting. The RCR110DNP-470L is supplied in Tape & Reel (TR) packaging, while the RCR108DNP-470M packaging format is not specified in available data.

Q: Why is the RCR108DNP-470M classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The RCR110DNP-470L represents the active equivalent offering improved electrical performance and continued supply availability.