TE Connectivity 3150W103P Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The TE Connectivity 3150W103P is a 10 kOhms surface mount trimmer potentiometer rated at 0.2W (1/5W) with J Lead termination and top adjustment capability. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The 3150 series Citec trimmer potentiometer utilizes cermet resistive material and is designed for applications requiring precision variable resistance in compact rectangular form factors.

Substiute Parts

3150W103P

TE Connectivity Passive ProductIn Stock: 8523150W103P Datasheet

Current PartRFQ

TC33X-2-103E

Bourns Inc.In Stock: 35476TC33X-2-103E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete TE Connectivity 3150W103P is based on strict equivalence of the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 10 kOhms
• Termination style: J Lead
• Mounting type: Surface Mount
• Adjustment type: Top Adjustment
• Resistive material: Cermet
• Number of turns: 1.0 Turn
• Tolerance: ±25%
• Temperature coefficient: ±250ppm/°C
• RoHS3 compliance
• MSL rating: 1 (Unlimited)

Allowable Variation:

• Power rating: Substitute parts must meet or exceed the 0.2W requirement of the original component
• Physical dimensions: Minor variations within standard rectangular form factor tolerances are acceptable provided J Lead termination and surface mount compatibility are maintained

The Bourns TC33X-2-103E meets all mandatory parameters and is classified as an active product, making it a direct functional equivalent for the obsolete 3150W103P.

Parameter Comparison

Engineering Selection Recommendations

The Bourns TC33X-2-103E (Trimpot® TC33 - Open Frame series) is the direct functional equivalent for the obsolete TE Connectivity 3150W103P. Both components share identical electrical specifications for resistance, tolerance, temperature coefficient, and adjustment characteristics. Both are ROHS3 compliant and carry MSL rating 1 (Unlimited), ensuring compatibility with standard surface mount assembly processes.

The TC33X-2-103E is an active product with substantial inventory availability (35,400 units), providing supply chain continuity for applications currently using the 3150W103P. The slightly reduced power rating (0.15W versus 0.2W) and marginally smaller physical dimensions of the TC33X-2-103E do not compromise functional equivalence when the original design operates within the substitute's power envelope.

For applications where the original 0.2W power rating is a critical design margin, component-level thermal analysis of the specific circuit application is required to confirm the 0.15W rating of the substitute is adequate.

Frequently Asked Questions (FAQ)

Q: Can the Bourns TC33X-2-103E directly replace the TE Connectivity 3150W103P in existing designs?

A: Yes. Both components are 10 kOhms, 1.0 turn, top-adjustment cermet trimmer potentiometers with J Lead surface mount termination. Electrical performance, tolerance, and temperature coefficient are identical. Physical dimensions are compatible with standard PCB layouts designed for the 3150W103P.

Q: What is the significance of the power rating difference (0.2W versus 0.15W)?

A: The TC33X-2-103E is rated at 0.15W compared to the 3150W103P at 0.2W. This difference reflects the maximum continuous power dissipation each component can sustain. Applications operating the trimmer potentiometer at power levels below 0.15W experience no functional impact. Applications requiring sustained operation above 0.15W require thermal analysis to confirm the substitute is suitable.

Q: Are both components RoHS3 compliant?

A: Yes. Both the TE Connectivity 3150W103P and Bourns TC33X-2-103E are ROHS3 compliant and carry MSL rating 1 (Unlimited), meeting current environmental and reliability standards for surface mount assembly.

Q: What are the physical dimension differences?

A: The 3150W103P measures 0.165" x 0.150" (4.20mm x 3.80mm). The TC33X-2-103E measures 0.150" x 0.142" (3.80mm x 3.60mm). The substitute is slightly smaller but maintains the same rectangular form factor and J Lead termination, ensuring PCB footprint compatibility.

Q: Why is the 3150W103P classified as obsolete?

A: The TE Connectivity 3150 series Citec trimmer potentiometer line has been discontinued. The Bourns TC33X series represents the current active equivalent technology for this application category.

Q: What is the packaging format for the TC33X-2-103E?

A: The Bourns TC33X-2-103E is available in Cut Tape (CT) and Digi-Reel® packaging formats, standard for surface mount component distribution and automated assembly processes.