RCR108DNP-2R2N Equivalent & Substitute Parts

Part Overview

The RCR108DNP-2R2N is a 2.2 µH shielded radial inductor manufactured by Sumida America Components Inc., rated for 6.05 A continuous current with a maximum DC resistance of 9.5mOhm. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support, maintenance, and production continuity. The part features ferrite core construction with through-hole radial mounting and operates across the temperature range of -40°C to 85°C.

Substiute Parts

RCR108DNP-2R2N

Sumida America Components Inc.In Stock: 1179RCR108DNP-2R2N Datasheet

Current PartRFQ

7447471022

Würth ElektronikIn Stock: 11517447471022 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RCR108DNP-2R2N is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 2.2 µH (exact match required)
• Shielding: Shielded construction
• Mounting type: Through hole radial configuration
• Core material: Ferrite
• RoHS compliance: ROHS3 Compliant

Secondary Compatibility Factors:

• Current rating: Substitute must equal or exceed 6.05 A
• DC resistance: Substitute must not exceed 9.5mOhm
• Operating temperature: Substitute must support minimum -40°C to 85°C range
• Package dimensions: Physical compatibility with board layout

The substitute part 7447471022 (Würth Elektronik WE-TIS series) meets all primary matching criteria and exceeds performance specifications in current rating (8.2 A vs. 6.05 A) and DC resistance (8.8mOhm vs. 9.5mOhm maximum).

Parameter Comparison

Engineering Selection Recommendations

The 7447471022 (Würth Elektronik WE-TIS series) is a direct functional substitute for the obsolete RCR108DNP-2R2N. Selection is supported by the following engineering factors:

Compliance & Availability:

• Both parts are ROHS3 compliant, meeting regulatory requirements
• The substitute part maintains active product status, ensuring long-term availability and supply chain continuity
• Both components carry identical ECCN (EAR99) and HTSUS (8504.50.4000) classifications

Performance Advantages:

• The substitute provides superior current handling capacity (8.2 A vs. 6.05 A), offering design margin in current-limited applications
• DC resistance is lower (8.8mOhm vs. 9.5mOhm maximum), reducing power dissipation
• Extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C) accommodates broader thermal environments
• Higher self-resonant frequency (75 MHz vs. 38 MHz) extends usable frequency bandwidth

Physical Compatibility:

• Radial through-hole mounting is identical
• Dimensional differences (0.433" diameter and 0.453" height vs. 0.394" diameter and 0.335" height) require verification against PCB layout constraints
• Vertical cylinder package configuration is compatible with standard radial inductor footprints

Frequently Asked Questions (FAQ)

Q: Can the 7447471022 be used as a direct replacement for RCR108DNP-2R2N without circuit modification?

A: Yes, the 7447471022 meets all electrical specifications required by the RCR108DNP-2R2N. The substitute provides equal or superior performance across all critical parameters: inductance (2.2 µH), shielding, ferrite core construction, and through-hole radial mounting. Physical dimensions must be verified against PCB layout to confirm mechanical fit.

Q: What is the significance of the tighter inductance tolerance on the substitute part?

A: The 7447471022 features ±20% inductance tolerance compared to ±30% for the RCR108DNP-2R2N. This tighter tolerance reduces inductance variation across production batches, improving circuit performance consistency. This is a performance advantage with no negative impact on compatibility.

Q: Why is the substitute part's current rating higher than the original?

A: The 7447471022 is rated for 8.2 A continuous current versus 6.05 A for the RCR108DNP-2R2N. This higher rating reflects the substitute's superior thermal and magnetic design. In applications operating at or below 6.05 A, the substitute operates with additional thermal margin, extending component life and reliability.

Q: Are there any frequency-dependent considerations when substituting these parts?

A: The substitute part exhibits a higher self-resonant frequency (75 MHz vs. 38 MHz). In applications operating below 38 MHz, this difference is not significant. For circuits operating near or above 38 MHz, the substitute's higher self-resonant frequency may provide improved high-frequency performance. Circuit-level testing is not required for standard applications within the specified inductance and current parameters.

Q: What packaging differences exist between these parts?

A: The RCR108DNP-2R2N uses standard radial packaging, while the 7447471022 uses a vertical cylinder radial configuration. Both are through-hole mounted components with compatible footprints. The substitute is slightly larger (0.433" diameter, 0.453" height vs. 0.394" diameter, 0.335" height). PCB layout verification is necessary to confirm clearance around the component mounting area.

Q: Is the extended temperature range of the substitute part relevant for my application?

A: The substitute operates from -40°C to 125°C compared to -40°C to 85°C for the original part. If your application operates within the original temperature range (-40°C to 85°C), the extended range provides no additional benefit. If your application requires operation above 85°C, the substitute enables compliance with higher temperature requirements.

Q: Are both parts equally available for procurement?

A: The RCR108DNP-2R2N is classified as obsolete, indicating discontinued production and limited remaining inventory. The 7447471022 maintains active product status with established supply chains. For new designs or ongoing production, the substitute ensures reliable long-term component availability.