CTS Electrocomponents 115-0545 Equivalent & Substitute Parts

Part Overview

The CTS Electrocomponents 115-0545 is a 5k Ohm, 2W wirewound linear potentiometer with 1 gang, 1 turn rotation, and PC pin termination. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design requirements and production continuity. The 270° rotation specification and round body form factor (0.781" diameter) define its mechanical footprint and operational characteristics.

Substiute Parts

115-0545

CTS ElectrocomponentsIn Stock: 742115-0545 Datasheet

Current PartRFQ

140B00502

Vishay SpectrolIn Stock: 1217140B00502 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 115-0545 is determined by matching the following core electrical and mechanical parameters: 5k Ohm resistance value, 2W power rating, linear taper, 1 gang configuration, 1 turn rotation, and wirewound resistive material. The Vishay Spectrol 140B00502 qualifies as a functional equivalent based on these primary specifications. Secondary parameters including tolerance, temperature coefficient, rotation angle, body size, termination style, and mounting type differ between the main part and substitute but do not prevent functional substitution when circuit design accommodates these variations.

Parameter Comparison

Engineering Selection Recommendations

The Vishay Spectrol 140B00502 serves as the primary substitute for the obsolete CTS 115-0545. Both components share identical electrical core specifications: 5k Ohm resistance, 2W power rating, linear taper, single gang, and wirewound construction. The 140B00502 offers superior tolerance (±5% versus ±20%), active product status, and ROHS3 compliance, providing advantages for new designs and production continuity.

Design integration requires evaluation of the following differences: termination style (PC pins versus solder turret), mounting configuration (unspecified versus panel mount), body diameter (19.84mm versus 12.70mm), and rotation angle (270° versus 330°). The 140B00502's panel mount design and smaller footprint may require mechanical redesign depending on circuit board layout and enclosure constraints. Termination conversion from PC pins to solder turret is feasible through standard interconnect methods.

Frequently Asked Questions (FAQ)

Q: Can the Vishay Spectrol 140B00502 directly replace the CTS 115-0545 without circuit modification?

A: Electrical substitution is valid based on matching resistance, power rating, taper, and wirewound construction. Mechanical integration requires assessment of termination style compatibility, mounting footprint, and rotation angle requirements specific to the application.

Q: What is the significance of the tolerance difference (±20% versus ±5%)?

A: The 140B00502 provides tighter tolerance control, reducing resistance variation across the production batch. Applications requiring precise resistance values benefit from this specification. Circuits designed for the 115-0545's ±20% tolerance remain compatible with the 140B00502.

Q: Does the rotation angle difference (270° versus 330°) affect substitution?

A: Rotation angle determines the mechanical sweep range of the potentiometer shaft. The 330° rotation of the 140B00502 provides extended adjustment range compared to the 270° of the 115-0545. Mechanical stops and circuit design must accommodate this difference.

Q: What are the termination style implications?

A: The 115-0545 uses PC pins for printed circuit board insertion; the 140B00502 uses solder turret for panel-mount soldering. Termination conversion requires appropriate interconnect design or PCB layout modification.

Q: Is the 140B00502 suitable for new product designs?

A: Yes. The 140B00502 is active product status with ROHS3 compliance, making it appropriate for new designs. The 115-0545's obsolete status necessitates transition to active alternatives.

Q: How does the body size difference affect mechanical fit?

A: The 140B00502 body diameter is 0.500" (12.70mm) compared to the 115-0545 at 0.781" (19.84mm). Enclosure cutouts, mounting brackets, and panel dimensions must be verified for compatibility.