SMP5022-333M Equivalent & Substitute Parts

Part Overview

The SMP5022-333M is a 330 µH unshielded molded inductor manufactured by Gowanda Electronics, rated for 1 A continuous current with a maximum DC resistance of 560 mOhm. This component is classified as Active product status and is designed for surface mount applications in nonstandard package configurations. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating.

Substiute Parts

SMP5022-333M

Gowanda ElectronicsIn Stock: 1061SMP5022-333M Datasheet

Current PartRFQ

SDR1806-331KL

Bourns Inc.In Stock: 1532SDR1806-331KL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMP5022-333M are qualified based on the following critical parameters:

• Inductance value of 330 µH within acceptable tolerance range
• Current rating of 1 A minimum continuous current capability
• Saturation current (Isat) sufficient to support application requirements
• DC resistance (DCR) within acceptable limits for thermal and efficiency considerations
• Unshielded ferrite core construction
• Surface mount package configuration
• Operating temperature range compatibility
• Active product status

The SDR1806-331KL from Bourns Inc. meets these substitution criteria with equivalent inductance, current rating, and core material specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the SMP5022-333M and SDR1806-331KL are Active status products suitable for 330 µH inductance applications at 1 A current rating. The SDR1806-331KL provides tighter inductance tolerance (±10% versus ±20%) and ROHS3 compliance certification. The SMP5022-333M offers extended low-temperature operation to -55°C and higher saturation current margin (2.1 A versus 1.8 A). Selection between these parts depends on application-specific requirements for temperature range, tolerance precision, and regulatory compliance status.

Frequently Asked Questions (FAQ)

Q: Can the SDR1806-331KL directly replace the SMP5022-333M?

A: Yes, for applications where the operating temperature range does not extend below -40°C and where the tighter inductance tolerance of ±10% is acceptable. Both parts maintain 330 µH inductance at 100 kHz test frequency and support 1 A continuous current with compatible DC resistance characteristics.

Q: What is the impact of the different saturation current ratings?

A: The SMP5022-333M has Isat of 2.1 A while the SDR1806-331KL has Isat of 1.8 A. For applications operating at or near 1 A continuous current, the SMP5022-333M provides additional saturation margin. The SDR1806-331KL remains suitable for standard 1 A operation within its specified current rating.

Q: Are there packaging differences between these parts?

A: The SMP5022-333M is supplied in Tape & Reel (TR) packaging, while the SDR1806-331KL is supplied in Cut Tape (CT) & Digi-Reel® packaging. Both are surface mount nonstandard package configurations with similar physical dimensions (19.04mm x 15.74mm versus 18.30mm x 14.00mm).

Q: What compliance certifications apply to each part?

A: The SDR1806-331KL carries ROHS3 compliance certification. The SMP5022-333M RoHS status is listed as Not applicable. Both parts are REACH Unaffected and classified under ECCN EAR99.

Q: How do the DC resistance specifications compare?

A: The SMP5022-333M specifies 560 mOhm maximum DCR, while the SDR1806-331KL specifies 580 mOhm maximum DCR. This 20 mOhm difference is negligible for most applications and falls within normal manufacturing variation for ferrite core inductors at this inductance value.