SMP3316-682M Equivalent & Substitute Parts

Part Overview

The SMP3316-682M is a 68 µH unshielded molded inductor manufactured by Gowanda Electronics, designed for surface mount applications. This component operates across an industrial temperature range of -55°C to 125°C with a current rating of 1.7 A and maximum DC resistance of 178 mOhm. The part maintains Active product status with 1062 units currently in stock. Alternative components may be required due to supply constraints, design optimization, or specific application requirements where substitute parameters align with system specifications.

Substiute Parts

SMP3316-682M

Gowanda ElectronicsIn Stock: 1111SMP3316-682M Datasheet

Current PartRFQ

SDR1005-680KL

Bourns Inc.In Stock: 1926SDR1005-680KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SDR1005-680KL from Bourns Inc. qualifies as a functional substitute based on the following alignment of critical electrical parameters:

Matching Parameters:

• Inductance: 68 µH (identical specification)
• Shielding: Unshielded (identical configuration)
• Mounting Type: Surface Mount (identical mounting)
• Moisture Sensitivity Level: 1 (Unlimited) (identical rating)
• Product Status: Active (both components actively manufactured)

Allowable Parameter Variations:

• Current Rating: 1.2 A (substitute) vs. 1.7 A (main part) — substitute operates within acceptable range for applications not requiring maximum current capacity
• DC Resistance: 240 mOhm Max (substitute) vs. 178 mOhm Max (main part) — substitute exhibits higher resistance within acceptable tolerance for general-purpose inductor applications
• Operating Temperature: -40°C ~ 125°C (substitute) vs. -55°C ~ 125°C (main part) — substitute covers standard industrial range with reduced low-temperature capability
• Inductance Tolerance: ±10% (substitute) vs. ±20% (main part) — substitute provides tighter tolerance specification

Parameter Comparison

Engineering Selection Recommendations

Both the SMP3316-682M and SDR1005-680KL maintain Active product status with continuous manufacturing support. The SDR1005-680KL provides ROHS3 compliance, which may be required for applications subject to RoHS regulations. Selection between these components should be based on application-specific current requirements and operating temperature constraints. The SMP3316-682M supports extended low-temperature operation to -55°C and higher current capacity at 1.7 A. The SDR1005-680KL offers superior inductance tolerance at ±10% and reduced package height at 0.197" maximum seated height, with availability of 1852 units in stock.

Frequently Asked Questions (FAQ)

Q: Can the SDR1005-680KL replace the SMP3316-682M in all applications?

A: Substitution is valid when application current requirements do not exceed 1.2 A and operating temperature remains above -40°C. Applications requiring the full 1.7 A current rating or extended low-temperature operation to -55°C require the SMP3316-682M.

Q: What is the impact of higher DC resistance in the SDR1005-680KL?

A: The SDR1005-680KL exhibits 240 mOhm maximum DC resistance compared to 178 mOhm maximum in the SMP3316-682M. This 62 mOhm difference results in increased power dissipation proportional to the square of the operating current. Applications sensitive to thermal performance should account for this variation.

Q: Are there package compatibility considerations?

A: Both components are surface mount inductors with nonstandard package dimensions. The SDR1005-680KL is slightly smaller (0.500" L x 0.394" W vs. 0.530" L x 0.420" W) and lower profile (0.197" vs. 0.236" maximum seated height). PCB layout verification is required to confirm physical fit.

Q: What compliance differences exist between these parts?

A: The SDR1005-680KL is ROHS3 compliant, while the SMP3316-682M is not applicable for RoHS classification. Both components are REACH unaffected. Applications requiring RoHS compliance must use the SDR1005-680KL.

Q: How do inductance tolerances affect circuit performance?

A: The SMP3316-682M specifies ±20% inductance tolerance, while the SDR1005-680KL specifies ±10%. Applications requiring tighter inductance accuracy benefit from the SDR1005-680KL. Circuit designs must account for the specified tolerance range of the selected component.