SMP3316-151M Equivalent & Substitute Parts

Part Overview

The SMP3316-151M is a 1.5 µH unshielded molded inductor manufactured by Gowanda Electronics, designed for surface mount applications requiring high current handling up to 8.3 A with a maximum DC resistance of 8 mOhm. This component operates across the industrial temperature range of -55°C to 125°C and maintains active product status with 908 units currently in stock.

Substitute parts become necessary when primary component availability is limited, when supply chain constraints affect procurement timelines, or when design flexibility permits selection from qualified alternative manufacturers meeting equivalent electrical and mechanical specifications.

Substiute Parts

SMP3316-151M

Gowanda ElectronicsIn Stock: 918SMP3316-151M Datasheet

Current PartRFQ

SDR1005-1R5ML

Bourns Inc.In Stock: 2718SDR1005-1R5ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMP3316-151M is determined by the following critical parameters:

• Inductance Value: 1.5 µH with ±20% tolerance
• Current Rating: Minimum 8.3 A continuous current capability
• DC Resistance: Maximum 8 mOhm to maintain equivalent power dissipation characteristics
• Shielding Configuration: Unshielded topology
• Operating Temperature: Support for -55°C to 125°C range
• Mounting Technology: Surface mount configuration
• Moisture Sensitivity: MSL 1 classification

The SDR1005-1R5ML from Bourns Inc. qualifies as a substitute based on matching inductance value, unshielded construction, surface mount packaging, and compatible temperature operating range. Electrical performance differences in current rating and DC resistance must be evaluated against specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The SDR1005-1R5ML presents a qualified substitute option with the following considerations based on provided specifications:

Electrical Compatibility: Both components deliver 1.5 µH inductance at ±20% tolerance with unshielded construction. The SDR1005-1R5ML exhibits a 1.7 mOhm higher DC resistance (9 mOhm vs. 8 mOhm) and reduced current rating (6.5 A vs. 8.3 A), requiring circuit-level verification for applications operating near maximum current specifications.

Temperature Operating Range: The SMP3316-151M supports extended low-temperature operation to -55°C, while the SDR1005-1R5ML operates from -40°C minimum. Selection depends on application temperature requirements.

Compliance Status: The SDR1005-1R5ML carries ROHS3 compliance certification, whereas the SMP3316-151M is not applicable for RoHS classification. Both components maintain REACH unaffected status and EAR99 export classification.

Product Availability: Both components maintain active product status with established inventory levels supporting procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the SDR1005-1R5ML directly replace the SMP3316-151M in all applications?

A: Direct substitution requires circuit-level analysis. The SDR1005-1R5ML has lower current rating (6.5 A vs. 8.3 A) and higher DC resistance (9 mOhm vs. 8 mOhm). Applications operating below 6.5 A continuous current with acceptable power dissipation at 9 mOhm are compatible. Applications requiring the full 8.3 A rating or lower resistance characteristics require alternative evaluation.

Q: What is the impact of the 1 mOhm DC resistance difference?

A: At maximum rated current, the SDR1005-1R5ML dissipates approximately 0.38 W (6.5 A² × 9 mOhm) compared to 0.55 W for the SMP3316-151M at 8.3 A. Thermal management and power budget analysis determine acceptability for specific circuit designs.

Q: Are both components suitable for -55°C operation?

A: The SMP3316-151M is rated for -55°C to 125°C operation. The SDR1005-1R5ML operates from -40°C to 125°C. Applications requiring -55°C minimum temperature must use the SMP3316-151M.

Q: Do package dimensions differ between these components?

A: Yes. The SMP3316-151M measures 0.530" L × 0.420" W × 0.236" H (13.46mm × 10.67mm × 6.00mm). The SDR1005-1R5ML measures 0.500" L × 0.394" W × 0.197" H (12.70mm × 10.00mm × 5.00mm). PCB layout and mechanical clearance verification is required for substitution.

Q: What is the inductance test frequency difference significance?

A: The SMP3316-151M is tested at 100 kHz while the SDR1005-1R5ML is tested at 1 kHz. Both maintain ±20% tolerance across their respective test frequencies. Application frequency response requirements determine relevance for specific circuit implementations.