RCR875DNP-331K Equivalent & Substitute Parts

Part Overview

The RCR875DNP-331K is a 330 µH shielded inductor manufactured by Sumida America Components Inc., designed for through-hole applications requiring moderate current handling and low DC resistance. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent inductance values, current ratings, and mounting configurations are required but the original part is unavailable or when alternative shielding characteristics are acceptable for specific circuit requirements.

Substiute Parts

RCR875DNP-331K

Sumida America Components Inc.In Stock: 1130RCR875DNP-331K Datasheet

Current PartRFQ

RL875-331K-RC

Bourns Inc.In Stock: 1935RL875-331K-RC Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RCR875DNP-331K is based on the following criteria:

Mandatory Matching Parameters:

• Inductance value: 330 µH (within ±10% tolerance)
• Inductance tolerance: ±10%
• Mounting type: Through Hole
• Package / Case: Radial, Vertical Cylinder
• Physical dimensions: 0.307" Dia (7.80mm), Height 0.295" (7.50mm)
• RoHS3 compliance

Acceptable Variation Parameters:

• Current rating: Substitute must meet or exceed 410 mA minimum
• DC resistance: Substitute must not exceed 970 mOhm maximum
• Shielding: Unshielded alternatives are acceptable if circuit design permits
• Operating temperature: Substitute range must encompass or exceed -40°C ~ 85°C
• Packaging format: Bulk or Tape & Reel both acceptable

The RL875-331K-RC from Bourns Inc. qualifies as a substitute based on matching inductance, tolerance, mounting type, package form factor, and physical dimensions. Differences in shielding (unshielded vs. shielded), DC resistance (1.05 Ohm vs. 970 mOhm), and current rating (460 mA vs. 410 mA) are documented for circuit-level evaluation.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (RCR875DNP-331K): The RCR875DNP-331K is the specified component and remains the first choice when available. It provides shielded construction, lower DC resistance (970 mOhm), and operates within the defined temperature range. Active product status and ROHS3 compliance confirm ongoing manufacturer support and regulatory alignment.

Substitute Part (RL875-331K-RC): The RL875-331K-RC is a valid substitute when the primary part is unavailable. Selection of this substitute requires evaluation of the following differences:

• Shielding Difference: The substitute is unshielded. Applications sensitive to electromagnetic interference or requiring shielded construction must assess circuit-level impact.
• DC Resistance Increase: The substitute exhibits 1.05 Ohm maximum DCR compared to 970 mOhm maximum. This 80 mOhm increase results in higher power dissipation and thermal generation. Thermal design review is necessary for current-limited or thermally constrained applications.
• Current Rating Advantage: The substitute supports 460 mA, exceeding the 410 mA requirement. This provides additional margin for transient or peak current conditions.
• Temperature Range Extension: The substitute operates to 105°C, extending the upper operating limit by 20°C compared to the primary part.

Both parts are Active, ROHS3 compliant, and share identical inductance, tolerance, mounting type, and physical dimensions. Selection between them depends on shielding requirements and acceptable DC resistance levels for the specific application.

Frequently Asked Questions (FAQ)

Q: Can the RL875-331K-RC replace the RCR875DNP-331K in all applications?

A: The RL875-331K-RC matches the primary electrical and mechanical specifications (inductance, tolerance, mounting, dimensions). However, the unshielded construction and higher DC resistance require circuit-level evaluation. Applications with electromagnetic interference sensitivity or strict thermal budgets must assess compatibility before substitution.

Q: What is the impact of the higher DC resistance in the substitute part?

A: The RL875-331K-RC exhibits 1.05 Ohm maximum DCR versus 970 mOhm maximum in the primary part. At 410 mA, this results in approximately 0.43 W additional power dissipation in the substitute. Thermal design review is required for applications operating at or near maximum current ratings.

Q: Does the unshielded design of the substitute affect circuit performance?

A: Unshielded inductors generate external magnetic fields. Applications requiring electromagnetic containment, operating in noise-sensitive environments, or with adjacent sensitive circuitry must evaluate shielding necessity. Shielded construction (primary part) is preferred for such applications.

Q: Are both parts suitable for the same PCB layout?

A: Yes. Both parts share identical physical dimensions (0.307" Dia, 0.295" Height) and radial, vertical cylinder package form factor. PCB footprints and mounting holes are compatible.

Q: What is the significance of the extended temperature range in the substitute?

A: The RL875-331K-RC operates to 105°C versus 85°C for the primary part. This provides 20°C additional margin for applications in elevated ambient or high-dissipation environments. However, this advantage does not offset shielding or DCR differences if those parameters are critical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the RCR875DNP-331K and RL875-331K-RC are ROHS3 compliant and suitable for applications with regulatory compliance requirements.

Q: What packaging formats are available?

A: The primary part (RCR875DNP-331K) is supplied in Tape & Reel format. The substitute (RL875-331K-RC) is supplied in Bulk format. Both formats are suitable for manufacturing assembly; format selection depends on production volume and handling requirements.