TE Connectivity 3150W102P Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The TE Connectivity 3150W102P is a 1 kOhm 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 The 3150 series from TE Connectivity (Citec) has been superseded by modern alternatives that maintain functional compatibility while offering improved availability and active product support.

Substiute Parts

3150W102P

TE Connectivity Passive ProductIn Stock: 10013150W102P Datasheet

Current PartRFQ

TC33X-1-102E

Bourns Inc.In Stock: 10439TC33X-1-102E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 3150W102P is based on electrical and mechanical parameter alignment within the surface mount trimmer potentiometer category. The critical substitution criteria are:

Electrical Parameters (Must Match):

• Resistance value: 1 kOhms
• Tolerance: ±25%
• Temperature Coefficient: ±250ppm/°C
• Number of Turns: 1.0 Turn
• Resistive Material: Cermet

Mechanical Parameters (Must Match):

• Adjustment Type: Top Adjustment
• Mounting Type: Surface Mount
• Termination Style: J Lead

Allowable Variation:

• Power Rating: The substitute part may operate at a lower power rating (0.1W) provided the application does not exceed this limit. The 3150W102P rated at 0.2W can be replaced by the TC33X-1-102E rated at 0.1W in applications where power dissipation remains within 0.1W specifications.
• Physical Dimensions: Minor dimensional differences are acceptable provided the J Lead termination and surface mount footprint remain compatible with the PCB layout.

Parameter Comparison

Engineering Selection Recommendations

The Bourns Inc. TC33X-1-102E (Trimpot® TC33 - Open Frame series) is the primary equivalent substitute for the obsolete TE Connectivity 3150W102P. This substitution is supported by the following engineering factors:

Product Status Alignment: The TC33X-1-102E is an active product with full manufacturer support, ensuring long-term availability and supply chain continuity. The 3150W102P is obsolete and subject to inventory depletion.

Electrical Compatibility: All critical electrical parameters align: 1 kOhm resistance, ±25% tolerance, ±250ppm/°C temperature coefficient, and 1.0 turn adjustment. The power rating differential (0.1W vs. 0.2W) requires application-level verification to ensure power dissipation does not exceed 0.1W during operation.

Regulatory Compliance: The TC33X-1-102E carries ROHS3 compliance and REACH Unaffected status, meeting modern regulatory requirements. Both parts share EAR99 ECCN classification and identical HTSUS codes (8533.40.8050).

Mechanical Compatibility: Both components feature identical J Lead termination, top adjustment mechanism, and surface mount configuration. Dimensional differences (0.165" x 0.150" vs. 0.150" x 0.142") are minor and do not affect PCB footprint compatibility for standard surface mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the TC33X-1-102E directly replace the 3150W102P in existing designs?

A: Direct replacement is possible provided the application power dissipation does not exceed 0.1W. The TC33X-1-102E is rated at 0.1W (1/10W) compared to the 3150W102P at 0.2W (1/5W). If the original design operates below 0.1W, substitution is straightforward. If power dissipation approaches or exceeds 0.1W, thermal analysis is required to confirm safe operation.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: The TC33X-1-102E (0.150" x 0.142" face) is slightly smaller than the 3150W102P (0.165" x 0.150" face). Both components use identical J Lead termination and surface mount configuration. PCB footprints designed for the 3150W102P will accommodate the TC33X-1-102E without modification, as the smaller dimensions provide additional clearance margin.

Q: What is the difference between the 3150 series and the TC33 series?

A: The 3150 series (TE Connectivity/Citec) is obsolete. The TC33 series (Bourns Trimpot®) is the modern active equivalent. Both are cermet-based surface mount trimmer potentiometers with identical electrical specifications for the 1 kOhm configuration. The TC33 series offers improved availability, active manufacturer support, and modern compliance certifications.

Q: Are tolerance and temperature coefficient specifications identical?

A: Yes. Both the 3150W102P and TC33X-1-102E specify ±25% tolerance and ±250ppm/°C temperature coefficient. These parameters are matched and do not require adjustment during substitution.

Q: What is the packaging difference between these parts?

A: The 3150W102P is listed with "-" packaging notation (not specified). The TC33X-1-102E is supplied in Tape & Reel (TR) format, which is standard for surface mount component distribution and automated assembly processes.

Q: Is the TC33X-1-102E the only substitute available?

A: Based on the provided input parameters, the TC33X-1-102E is the identified substitute. The 3150W102P specification sheet lists TC33X-1-102E as the direct substitute part number.