SMP3316-223M Equivalent & Substitute Parts

Part Overview

The SMP3316-223M is a 220 µH unshielded molded inductor manufactured by Gowanda Electronics, designed for surface mount applications requiring moderate current handling up to 970 mA. This component is classified as Active product status with 753 units currently in stock. Alternative components may be required due to supply constraints, design optimization, or specific application requirements where substitute inductors meet the electrical and mechanical specifications.

Substiute Parts

SMP3316-223M

Gowanda ElectronicsIn Stock: 795SMP3316-223M Datasheet

Current PartRFQ

SDR1005-221KL

Bourns Inc.In Stock: 6221SDR1005-221KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SDR1005-221KL from Bourns Inc. qualifies as a substitute based on the following alignment of critical electrical parameters:

Matching Criteria:

• Inductance value: 220 µH (identical)
• Shielding configuration: Unshielded (identical)
• Mounting type: Surface Mount (identical)
• Packaging format: Tape & Reel (TR) (identical)
• Operating temperature range: -40°C to 125°C (overlaps primary part range)
• Current rating: 700 mA (within acceptable operational envelope)
• Saturation current: 800 mA (comparable performance)

Substitution Basis: The SDR1005-221KL maintains the same inductance specification and unshielded topology required for equivalent circuit function. While the current rating is lower (700 mA vs. 970 mA) and DCR is higher (780 mOhm vs. 550 mOhm), these parameters remain within acceptable tolerance for applications not requiring maximum current capacity. The substitute part's ferrite drum core construction provides stable inductance performance across the overlapping temperature range.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (SMP3316-223M): Select when maximum current capacity (970 mA) and extended low-temperature operation (-55°C) are required. Active product status ensures ongoing availability and supply chain stability.

Substitute Part (SDR1005-221KL): Select when RoHS3 compliance is mandated, lower profile height is beneficial for space-constrained designs, or when application current requirements do not exceed 700 mA. The substitute's tighter inductance tolerance (±10%) may provide improved circuit performance in precision applications. Verify that the higher DCR (780 mOhm vs. 550 mOhm) does not introduce unacceptable power dissipation in the target circuit.

Both parts maintain unshielded topology and identical inductance values, ensuring functional equivalence in circuits designed for these specifications.

Frequently Asked Questions (FAQ)

Q: Can the SDR1005-221KL directly replace the SMP3316-223M in all applications?

A: Direct replacement is possible when application current does not exceed 700 mA and operating temperature remains above -40°C. PCB footprint must accommodate the slightly smaller dimensions (0.500" x 0.394" vs. 0.530" x 0.420"). Verify that the higher DCR (780 mOhm) does not cause excessive power dissipation in your circuit.

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

A: The primary differences are current rating (970 mA vs. 700 mA), DC resistance (550 mOhm vs. 780 mOhm), operating temperature minimum (-55°C vs. -40°C), and physical dimensions. Both maintain identical 220 µH inductance and unshielded construction.

Q: Does the substitute part's lower current rating affect circuit performance?

A: The lower current rating (700 mA) only impacts applications requiring sustained currents above this threshold. If your circuit operates below 700 mA, the substitute performs identically. Saturation current (800 mA) remains adequate for transient current spikes in most applications.

Q: Are there packaging or handling differences?

A: Both parts are supplied in Tape & Reel (TR) format with MSL 1 (Unlimited) moisture sensitivity. No special handling differences exist. The substitute's lower profile (5.00mm vs. 6.00mm) may simplify assembly in height-constrained designs.

Q: Which part should be selected for new designs?

A: For new designs, evaluate whether the application requires the SMP3316-223M's higher current capacity and extended temperature range. If not required, the SDR1005-221KL offers RoHS3 compliance and tighter inductance tolerance, potentially improving long-term supply chain compliance and circuit performance.