3314S-2-103E Surface Mount Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3314S-2-103E is a 10 kOhms, 0.25W surface mount trimmer potentiometer with side adjustment, designed for precision tuning applications in electronic circuits. This sealed Trimpot® 3314 series component features cermet resistive material and J lead termination for reliable performance in production environments. The part is currently active and widely available in inventory. Equivalent and substitute parts are identified when identical electrical specifications and mechanical compatibility are required for design flexibility, supply chain alternatives, or manufacturing optimization.

Substiute Parts

3314S-2-103E

Bourns Inc.In Stock: 18903314S-2-103E Datasheet

Current PartRFQ

23AR10KLFTR

TT Electronics/BIIn Stock: 208723AR10KLFTR Datasheet

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ST-4ETA103

Nidec Components CorporationIn Stock: 1938ST-4ETA103 Datasheet

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TS4YJ103MR10

Vishay SferniceIn Stock: 1959TS4YJ103MR10 Datasheet

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TS53YJ103MR10

Vishay SferniceIn Stock: 4296TS53YJ103MR10 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3314S-2-103E is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 10 kOhms
• Power rating: 0.25W (1/4W)
• Tolerance: ±20%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 1
• Mounting type: Surface Mount
• Termination style: J Lead
• Packaging: Tape & Reel (TR)

Allowable Variations:

• Adjustment type: Side adjustment (main part) may be substituted with top adjustment alternatives, provided circuit design accommodates the physical adjustment location change
• Face dimension: Rectangular (5.00mm x 4.50mm) may be substituted with square (5.00mm x 5.00mm) configurations, as both maintain compatible footprint spacing for standard PCB layouts
• Resistive material: Cermet specification is preferred; parts without specified resistive material may be evaluated if all other parameters align
• MSL rating: Parts with MSL 1 or MSL 4 are acceptable; higher MSL ratings indicate more stringent moisture handling requirements during storage and assembly

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and meet or exceed the compliance requirements of the primary 3314S-2-103E component. Selection among these alternatives is based on the following engineering criteria:

Direct Rectangular Footprint Substitutes (Preferred for PCB Layout Compatibility):

• 23AR10KLFTR (TT Electronics/BI): Identical rectangular face dimension (5.00mm x 4.50mm), top adjustment, cermet material, MSL 1 rating, and RoHS compliance. Suitable for direct replacement where adjustment location change is acceptable.
• ST-4ETA103 (Nidec Components): Identical rectangular face dimension (5.00mm x 4.50mm), top adjustment, cermet material, MSL 1 rating, and ROHS3 compliance. Functionally equivalent with top-side adjustment access.

Square Footprint Alternatives (Acceptable with PCB Layout Verification):

• TS4YJ103MR10 (Vishay Sfernice): Square face dimension (5.00mm x 5.00mm), top adjustment, MSL 1 rating, ROHS3 compliance. Resistive material not specified in documentation; electrical performance equivalent within stated tolerance.
• TS53YJ103MR10 (Vishay Sfernice): Square face dimension (5.00mm x 5.00mm), top adjustment, cermet material, ROHS3 compliance. MSL 4 rating requires controlled moisture handling during storage and assembly (72-hour maximum exposure at specified conditions).

All substitute parts are available in production quantities and maintain electrical equivalence within the ±20% tolerance specification.

Frequently Asked Questions (FAQ)

Q: Can the 3314S-2-103E be directly replaced with a top-adjustment trimmer potentiometer?

A: Yes, provided all electrical parameters (10 kOhms, 0.25W, ±20% tolerance, ±100ppm/°C temperature coefficient) and mechanical specifications (surface mount, J lead termination, tape & reel packaging) remain identical. The adjustment location change from side to top requires verification that the circuit board layout and assembly process accommodate the new adjustment access point.

Q: Are rectangular and square face dimension variants interchangeable?

A: Rectangular (5.00mm x 4.50mm) and square (5.00mm x 5.00mm) variants are mechanically compatible for standard PCB layouts, as both maintain compatible lead spacing and mounting footprints. However, PCB artwork and assembly fixture design should be verified to confirm adequate clearance around the component body.

Q: What is the significance of MSL rating differences between substitute parts?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life under standard storage conditions. MSL 4 requires controlled moisture exposure (maximum 72 hours at specified temperature and humidity) before soldering. Parts with MSL 4 rating necessitate proper bake-out procedures and moisture barrier packaging during storage and assembly operations.

Q: Does the absence of specified resistive material in the TS4YJ103MR10 datasheet affect substitution eligibility?

A: The TS4YJ103MR10 meets all mandatory electrical and mechanical parameters for substitution. The unspecified resistive material does not alter functional equivalence within the stated tolerance and temperature coefficient specifications. Datasheet clarification from the manufacturer is recommended if resistive material composition is critical to the application.

Q: Are all substitute parts RoHS compliant?

A: Yes. The primary part (3314S-2-103E) and all listed substitutes are RoHS compliant. The 3314S-2-103E and three substitutes (ST-4ETA103, TS4YJ103MR10, TS53YJ103MR10) carry ROHS3 certification. The 23AR10KLFTR carries RoHS compliance designation. All parts meet REACH requirements and carry EAR99 export classification.