CT-94Y-200 Equivalent & Substitute Parts

Part Overview

The CT-94Y-200 is a 20 Ohm, 0.5W through-hole trimmer potentiometer manufactured by Vishay Beyschlag/Draloric/BC Components. This cermet-based trimmer features PC pin termination and top adjustment capability with an 18-turn configuration. The product is currently obsolete, making identification of compatible substitute components essential for ongoing maintenance, repair, and legacy system support. Equivalent parts must maintain the same electrical specifications and mechanical form factor to ensure direct replacement without circuit redesign.

Substiute Parts

CT-94Y-200

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1091CT-94Y-200 Datasheet

Current PartRFQ

3296Y-1-200

Bourns Inc.In Stock: 8773296Y-1-200 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CT-94Y-200 is determined by the following critical parameters that must remain constant or compatible:

• Electrical Match: Resistance value (20 Ohms), power rating (0.5W), and tolerance (±10%) must be identical
• Mechanical Compatibility: Through-hole mounting with PC pin termination and rectangular form factor within acceptable dimensional tolerance
• Functional Equivalence: Top adjustment capability with cermet resistive material
• Adjustment Resolution: Number of turns may vary within acceptable limits for the application, provided the adjustment mechanism remains functional

The 3296Y-1-200 from Bourns Inc. qualifies as a manufacturer-recommended substitute based on matching all critical electrical parameters and maintaining mechanical compatibility despite minor dimensional and turn-count variations.

Parameter Comparison

Engineering Selection Recommendations

The 3296Y-1-200 is the manufacturer-recommended substitute for the obsolete CT-94Y-200. Selection of this substitute is based on:

• Electrical Equivalence: All critical electrical parameters (resistance, power rating, tolerance) are identical
• Mechanical Fit: Dimensional variations are within acceptable tolerance for through-hole PCB mounting
• Active Product Status: The 3296Y-1-200 is an active product with current manufacturing support, ensuring long-term availability
• Improved Performance: The substitute exhibits superior temperature stability (±100ppm/°C versus ±250ppm/°C), providing enhanced reliability in temperature-sensitive applications
• Increased Adjustment Resolution: The 25-turn configuration provides finer adjustment capability compared to the 18-turn original, beneficial for precision tuning applications

Frequently Asked Questions (FAQ)

Q: Can the 3296Y-1-200 be used as a direct replacement for the CT-94Y-200 without PCB modification?

A: Yes. The 3296Y-1-200 maintains identical electrical specifications and compatible mechanical dimensions for through-hole mounting. No circuit redesign is required.

Q: What is the significance of the difference in turn count (18 versus 25)?

A: The increased turn count in the 3296Y-1-200 provides finer adjustment resolution. This does not affect electrical compatibility but allows more precise tuning capability. The adjustment range and functional behavior remain equivalent.

Q: How do the temperature coefficients compare?

A: The CT-94Y-200 has a temperature coefficient of ±250ppm/°C, while the 3296Y-1-200 has ±100ppm/°C. The substitute exhibits superior temperature stability, making it more suitable for applications requiring consistent performance across temperature variations.

Q: Are there packaging differences between these parts?

A: The CT-94Y-200 information does not specify packaging details. The 3296Y-1-200 is supplied in tube packaging. Both are through-hole components suitable for standard PCB assembly processes.

Q: Is the 3296Y-1-200 the only available substitute?

A: Based on the provided data, the 3296Y-1-200 is identified as the manufacturer-recommended substitute. Additional equivalent parts may exist but are not included in this reference.

Q: What is the RoHS compliance status of the substitute?

A: The 3296Y-1-200 is RoHS non-compliant, matching the compliance status of the original CT-94Y-200. Both components are REACH Affected or REACH Unaffected respectively, reflecting their manufacturing origins.