TE Connectivity 3142W201P Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The TE Connectivity 3142W201P is a 200 Ohm surface mount trimmer potentiometer rated at 0.15W 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 part features cermet resistive material construction with 1.0 turn adjustment and rectangular form factor measuring 4.50mm x 4.00mm.

Substiute Parts

3142W201P

TE Connectivity Passive ProductIn Stock: 10953142W201P Datasheet

Current PartRFQ

TC33X-2-201E

Bourns Inc.In Stock: 21904TC33X-2-201E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3142W201P is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance Value: 200 Ohms
• Termination Style: J Lead
• Adjustment Type: Top Adjustment
• Resistive Material: Cermet
• Mounting Type: Surface Mount
• Number of Turns: 1.0
• Tolerance: ±25%
• Temperature Coefficient: ±250ppm/°C

Allowable Variation:

• Power Rating: The substitute part (TC33X-2-201E) is rated at 0.1W, which is lower than the original 0.15W specification. This represents a reduction in power dissipation capability and must be evaluated against actual circuit requirements.
• Physical Dimensions: Minor dimensional differences exist between the main part (4.50mm x 4.00mm) and substitute (3.80mm x 3.60mm), both maintaining rectangular form factor suitable for surface mount applications.

The Bourns TC33X-2-201E meets all mandatory electrical and functional parameters while maintaining active product status and current compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The Bourns TC33X-2-201E serves as the primary equivalent substitute for the obsolete TE Connectivity 3142W201P based on the following engineering criteria:

Compliance and Availability: The TC33X-2-201E maintains active product status with current manufacturing support and availability (21,865 pieces in stock). Both components satisfy RoHS compliance requirements, with the substitute meeting ROHS3 specifications and REACH unaffected status, ensuring regulatory alignment for current and future production.

Electrical Equivalence: All critical electrical parameters match the original specification: 200 Ohm resistance, ±25% tolerance, ±250ppm/°C temperature coefficient, and 1.0 turn adjustment. Cermet resistive material and J Lead termination provide functional compatibility in existing circuit designs.

Power Rating Consideration: The substitute component is rated at 0.1W compared to the original 0.15W specification. Circuit designs operating at or below 0.1W dissipation levels require no modification. Applications requiring the full 0.15W capability must be evaluated against actual power dissipation in the specific circuit implementation.

Physical Integration: The TC33X-2-201E features a smaller rectangular footprint (3.80mm x 4.60mm versus 4.50mm x 4.00mm). PCB layout modifications may be required for designs with tight spatial constraints, though the reduced size generally facilitates integration in compact applications.

Frequently Asked Questions (FAQ)

Q: Can the Bourns TC33X-2-201E directly replace the TE Connectivity 3142W201P in existing designs?

A: Direct replacement is possible for applications where power dissipation does not exceed 0.1W. The substitute maintains equivalent electrical performance, tolerance, temperature coefficient, and adjustment characteristics. PCB layout modifications may be necessary due to the smaller physical dimensions.

Q: What is the significance of the power rating difference between 0.15W and 0.1W?

A: Power rating indicates maximum continuous power dissipation capability. The substitute's 0.1W rating is lower than the original 0.15W specification. Applications operating below 0.1W dissipation are unaffected. Circuits requiring higher power dissipation must be redesigned or alternative components selected.

Q: Are there compatibility concerns with the J Lead termination style?

A: Both components utilize J Lead termination, ensuring compatibility with existing PCB footprints designed for J Lead surface mount trimmer potentiometers. No termination-related modifications are required.

Q: How do the physical dimensions affect PCB design?

A: The substitute component is smaller (3.80mm x 3.60mm versus 4.50mm x 4.00mm). Existing PCB layouts designed for the larger original component will accommodate the smaller substitute without issue. Designs with minimal spacing may benefit from the reduced footprint.

Q: What compliance certifications apply to the substitute part?

A: The Bourns TC33X-2-201E is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution. Both components maintain MSL 1 (Unlimited) moisture sensitivity classification.

Q: Is the TC33X-2-201E the only available substitute?

A: Based on the provided substitute list, the Bourns TC33X-2-201E is identified as the equivalent substitute for the 3142W201P. This part maintains all mandatory electrical and functional parameters while offering active product status and current availability.

Q: What should be verified before implementing the substitute in production?

A: Confirm that actual circuit power dissipation does not exceed 0.1W. Verify PCB layout compatibility with the smaller physical dimensions. Validate that the Trimpot® TC33 series adjustment characteristics meet application requirements for tuning range and resolution.