Equivalent & Substitute Parts for CTS 306JC201B

Part Overview

The CTS 306JC201B is a 200 Ohm, 0.5W through-hole trimmer potentiometer with cermet resistive material, side adjustment, and PC pin termination. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The 306 series design specifications remain functionally relevant in modern circuit designs requiring precision resistive adjustment in compact form factors.

Substiute Parts

306JC201B

CTS ElectrocomponentsIn Stock: 827306JC201B Datasheet

Current PartRFQ

3362W-1-201

Bourns Inc.In Stock: 17563362W-1-201 Datasheet

SimilarRFQ

3386C-1-201LF

Bourns Inc.In Stock: 9503386C-1-201LF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 306JC201B is determined by strict equivalence across the following parameters:

• Resistance value: 200 Ohms (exact match required)
• Power rating: 0.5W minimum
• Number of turns: 1 turn (single-turn adjustment)
• Adjustment mechanism: Side adjustment
• Resistive element: Cermet composition
• Mounting configuration: Through-hole PCB mounting
• Termination: PC pins for direct board insertion
• Temperature stability: ±100ppm/°C or better

Both identified substitute parts meet these core electrical and mechanical requirements. Tolerance and physical dimensions may vary within acceptable engineering margins for PCB layout and assembly processes.

Parameter Comparison

Engineering Selection Recommendations

3362W-1-201 (Bourns Trimpot® 3362 - Sealed): This substitute maintains active product status with improved tolerance specification (±10% versus ±20%). Physical dimensions are comparable to the original 306JC201B, minimizing PCB layout modifications. The sealed design provides enhanced environmental protection. RoHS non-compliance matches the original component status.

3386C-1-201LF (Bourns Trimpot® 3386 - Sealed): This substitute offers ROHS3 compliance, meeting modern regulatory requirements where the original obsolete component does not. The larger square form factor (0.375" x 0.375") requires PCB layout verification. Tolerance and temperature coefficient specifications are equivalent to the 3362W variant. Active product status ensures long-term availability.

Selection between these two substitutes depends on regulatory compliance requirements and available PCB space. The 3362W-1-201 provides a closer dimensional match, while the 3386C-1-201LF provides RoHS3 compliance for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can the 3362W-1-201 and 3386C-1-201LF be used interchangeably with the 306JC201B?

A: Both parts meet the core electrical specifications (200 Ohms, 0.5W, 1-turn, side adjustment, cermet, through-hole, PC pins). Interchangeability depends on PCB layout constraints. The 3362W-1-201 has a smaller footprint (0.275" x 0.260"), while the 3386C-1-201LF is larger (0.375" x 0.375"). Verify available board space before selection.

Q: What is the tolerance difference between the original and substitute parts?

A: The 306JC201B specifies ±20% tolerance, while both Bourns substitutes (3362W-1-201 and 3386C-1-201LF) specify ±10% tolerance. The tighter tolerance of the substitutes provides improved precision in resistive adjustment applications.

Q: Which substitute part should be selected for new designs?

A: The 3386C-1-201LF is recommended for new designs requiring RoHS3 compliance. The 3362W-1-201 is suitable for applications where RoHS compliance is not mandated and PCB space is limited.

Q: Are there packaging differences between these parts?

A: The 306JC201B is specified with dash packaging notation. Both Bourns substitutes are supplied in tube packaging, which is standard for through-hole trimmer potentiometers. Verify tube quantity requirements for production planning.

Q: How do the physical dimensions affect PCB design?

A: The 306JC201B face dimension is 0.299" x 0.252" (rectangular). The 3362W-1-201 is slightly smaller at 0.275" x 0.260" (rectangular), allowing direct substitution with minimal layout changes. The 3386C-1-201LF is significantly larger at 0.375" x 0.375" (square), requiring PCB footprint redesign and potential component repositioning.