SMP3316-101M Equivalent & Substitute Parts

Part Overview

The SMP3316-101M is a 1 µH unshielded molded inductor manufactured by Gowanda Electronics, designed for surface mount applications requiring high current handling. This component is classified as Active product status with 1098 units currently in stock. Alternative components become necessary when addressing supply chain constraints, specific thermal requirements, or when design specifications permit substitution within the defined electrical and mechanical parameter ranges.

Substiute Parts

SMP3316-101M

Gowanda ElectronicsIn Stock: 1162SMP3316-101M Datasheet

Current PartRFQ

SDR1005-1R0ML

Bourns Inc.In Stock: 2321SDR1005-1R0ML Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The SDR1005-1R0ML from Bourns Inc. qualifies as a substitute for the SMP3316-101M based on the following alignment of critical electrical and mechanical parameters:

Matching Parameters:

• Inductance: 1 µH (identical)
• Inductance Tolerance: ±20% (identical)
• Shielding: Unshielded (identical)
• Mounting Type: Surface Mount (identical)
• Package Type: Nonstandard (identical)
• Moisture Sensitivity Level (MSL): 1 (Unlimited) (identical)

Comparable Parameters Within Acceptable Ranges:

• Current Rating: 7.5 A (SMP3316-101M: 9.3 A) — substitute rated lower
• Current - Saturation (Isat): 9 A (SMP3316-101M: 11 A) — substitute rated lower
• DC Resistance (DCR): 7 mOhm Max (SMP3316-101M: 6.5 mOhm Max) — substitute has higher resistance
• Operating Temperature Range: -40°C ~ 125°C (SMP3316-101M: -55°C ~ 125°C) — substitute has narrower lower temperature limit
• Physical Dimensions: 0.500" L x 0.394" W, Height 0.197" (substitute is slightly smaller)

Substitution is valid when the application does not require the full current capacity, lower temperature operation below -40°C, or the lower DC resistance of the original part.

Parameter Comparison

Engineering Selection Recommendations

Both the SMP3316-101M and SDR1005-1R0ML maintain Active product status, ensuring continued availability and manufacturing support. The SDR1005-1R0ML offers ROHS3 compliance, providing an advantage for applications subject to RoHS regulations. Selection between these components depends on application-specific current requirements and operating temperature constraints. The SMP3316-101M is suitable for applications requiring the full 9.3 A current rating or operation below -40°C. The SDR1005-1R0ML is suitable for applications with current requirements up to 7.5 A and operating temperatures within the -40°C to 125°C range.

Frequently Asked Questions (FAQ)

Q: Can the SDR1005-1R0ML replace the SMP3316-101M in all applications?

A: No. The SDR1005-1R0ML has a lower current rating (7.5 A vs. 9.3 A) and a narrower operating temperature range (-40°C to 125°C vs. -55°C to 125°C). Substitution is valid only when the application does not require the full current capacity or operation below -40°C.

Q: What is the impact of the higher DC resistance in the SDR1005-1R0ML?

A: The SDR1005-1R0ML has a maximum DC resistance of 7 mOhm compared to 6.5 mOhm for the SMP3316-101M. This 0.5 mOhm difference results in slightly higher power dissipation and heat generation at equivalent current levels.

Q: Are the physical dimensions compatible for PCB layout?

A: The SDR1005-1R0ML is slightly smaller (0.500" L x 0.394" W, height 0.197") compared to the SMP3316-101M (0.530" L x 0.420" W, height 0.236"). PCB footprints must be verified for mechanical compatibility before substitution.

Q: What is the significance of the RoHS compliance difference?

A: The SDR1005-1R0ML is ROHS3 compliant, while the SMP3316-101M is not applicable for RoHS. For applications requiring RoHS compliance, the SDR1005-1R0ML is the appropriate selection.

Q: Are both components available in the same packaging format?

A: Both components are supplied in Tape & Reel (TR) packaging with Moisture Sensitivity Level 1 (Unlimited), ensuring compatibility with standard automated assembly processes.