CT-94Z-204 Equivalent & Substitute Parts

Part Overview

The CT-94Z-204 is a 200 kOhms 0.5W through-hole trimmer potentiometer manufactured by Vishay Beyschlag/Draloric/BC Components. This cermet-based component features PC pin termination with side adjustment capability and an 18-turn configuration. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

CT-94Z-204

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1085CT-94Z-204 Datasheet

Current PartRFQ

3296Z-1-204

Bourns Inc.In Stock: 11663296Z-1-204 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CT-94Z-204 is determined by strict equivalence across the following critical parameters:

• Resistance value: 200 kOhms (exact match required)
• Power rating: 0.5W minimum
• Tolerance: ±10% or better
• Temperature coefficient: ±100ppm/°C or better
• Adjustment type: Side adjustment
• Resistive material: Cermet
• Mounting type: Through hole
• Termination style: PC pins

The 3296Z-1-204 manufactured by Bourns Inc. meets all substitution criteria. While the number of turns differs (25 turns versus 18 turns), this parameter does not restrict substitution when all electrical and mechanical specifications align. The slightly larger face dimension (0.395" x 0.190" versus 0.378" x 0.189") remains within acceptable mechanical tolerance for through-hole PC pin applications.

Parameter Comparison

Engineering Selection Recommendations

The 3296Z-1-204 is the qualified substitute for the obsolete CT-94Z-204. Selection is based on the following factors:

• All critical electrical parameters match exactly: resistance, power rating, tolerance, and temperature coefficient
• Mechanical compatibility is maintained through identical adjustment type, resistive material, mounting method, and termination style
• The substitute part is in active production status, ensuring long-term availability and supply chain stability
• The 3296Z-1-204 is RoHS non-compliant, matching the compliance profile of the original part
• Dimensional variation is minimal and acceptable for through-hole PC pin applications

The increased number of turns (25 versus 18) provides finer adjustment resolution without affecting electrical performance or circuit compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 3296Z-1-204 be used as a direct replacement for the CT-94Z-204?

A: Yes. The 3296Z-1-204 meets all electrical and mechanical specifications required for substitution. Both parts share identical resistance, power rating, tolerance, temperature coefficient, adjustment type, resistive material, mounting method, and termination style.

Q: Does the difference in turn count (25 versus 18) affect circuit performance?

A: No. The number of turns affects adjustment resolution and mechanical feel but does not alter electrical performance. The 25-turn configuration provides finer adjustment capability.

Q: Are there dimensional compatibility concerns?

A: The face dimensions differ slightly (0.395" x 0.190" versus 0.378" x 0.189"), but both parts are designed for through-hole PC pin mounting. The dimensional difference is within acceptable tolerance for standard PCB layouts.

Q: What is the packaging difference between these parts?

A: The CT-94Z-204 packaging is not specified in available data. The 3296Z-1-204 is supplied in tube packaging.

Q: Are there compliance differences between the two parts?

A: Both parts are RoHS non-compliant. The 3296Z-1-204 is REACH Affected, while the CT-94Z-204 is REACH Unaffected. Both carry the same ECCN and HTSUS classifications.

Q: Why is the CT-94Z-204 obsolete?

A: The CT-94Z-204 has been discontinued by the manufacturer. The 3296Z-1-204 represents the active equivalent in the market.