CT-94Y-205 Equivalent & Substitute Parts

Part Overview

The CT-94Y-205 is a 2 MOhm, 0.5W through-hole trimmer potentiometer with cermet resistive material, 18-turn top adjustment, and PC pin termination manufactured by Vishay Beyschlag/Draloric/BC Components. This part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. The CT94 series design provides stable adjustment characteristics suitable for precision tuning in electronic circuits requiring high resistance values with moderate power dissipation.

Substiute Parts

CT-94Y-205

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 927CT-94Y-205 Datasheet

Current PartRFQ

CT-94EY205

Nidec Components CorporationIn Stock: 1500CT-94EY205 Datasheet

DirectRFQ

3296Y-1-205

Bourns Inc.In Stock: 8233296Y-1-205 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT-94Y-205 is determined by strict equivalence across the following critical parameters:

• Resistance value: 2 MOhms (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Tolerance: ±10% (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Adjustment type: Top Adjustment (exact match required)
• Resistive material: Cermet (exact match required)
• Mounting type: Through Hole (exact match required)
• Termination style: PC Pins (exact match required)
• Face dimensions: Rectangular, approximately 0.378" x 0.189" (exact match required)

Two substitute parts meet these criteria: CT-94EY205 (Nidec Components Corporation) and 3296Y-1-205 (Bourns Inc.). Both maintain identical electrical specifications and mechanical compatibility with the original design. Variations in number of turns (18 vs. 25) and compliance certifications are noted but do not affect functional substitution for standard applications.

Parameter Comparison

Engineering Selection Recommendations

CT-94EY205 (Nidec Components Corporation) is the primary substitute for new designs and production transitions. This part maintains identical electrical and mechanical specifications to the original CT-94Y-205 while offering active product status and RoHS3 compliance. The CT-94EY205 is available in bulk packaging with 1460 units in stock, supporting high-volume manufacturing requirements.

3296Y-1-205 (Bourns Inc.) serves as an alternative substitute with identical electrical performance. This part features 25 turns compared to the 18-turn design of the original, providing finer adjustment resolution. The Bourns Trimpot® 3296 series maintains mechanical compatibility within standard PCB layout tolerances (face dimensions 0.375" x 0.190" versus 0.378" x 0.189"). The 3296Y-1-205 is available in tube packaging with 787 units in stock. REACH compliance status differs from the original specification.

Both substitutes are electrically and mechanically compatible with applications designed for the CT-94Y-205. Selection between them depends on packaging requirements, compliance certifications needed for the end application, and adjustment resolution preferences.

Frequently Asked Questions (FAQ)

Q: Can CT-94EY205 and 3296Y-1-205 be used interchangeably with CT-94Y-205?

A: Both parts meet the core electrical specifications (2 MOhms, 0.5W, ±10% tolerance, ±100ppm/°C temperature coefficient) and mechanical requirements (through-hole mounting, PC pins, top adjustment, cermet material). Face dimensions are within standard PCB layout tolerances. Substitution is functionally valid for applications requiring these electrical characteristics.

Q: What is the significance of the 18-turn versus 25-turn difference?

A: The CT-94Y-205 and CT-94EY205 both feature 18-turn adjustment, while the 3296Y-1-205 features 25 turns. This affects adjustment resolution and sensitivity. The 25-turn design provides finer control per rotation but does not alter electrical performance or compatibility with standard circuit designs.

Q: Are there compliance differences between the substitutes?

A: CT-94EY205 is RoHS3 compliant and REACH unaffected. The original CT-94Y-205 is RoHS non-compliant and REACH unaffected. The 3296Y-1-205 is RoHS non-compliant and REACH affected. Compliance requirements depend on the end application and regional regulations.

Q: What packaging options are available?

A: CT-94EY205 is supplied in bulk packaging. 3296Y-1-205 is supplied in tube packaging. Packaging selection affects handling, storage, and integration into automated assembly processes.

Q: Are the physical dimensions identical?

A: Face dimensions are nominally equivalent: CT-94Y-205 and CT-94EY205 are 0.378" x 0.189" (9.60mm x 4.80mm), while 3296Y-1-205 is 0.375" x 0.190" (9.53mm x 4.83mm). These differences fall within standard PCB layout tolerances for through-hole components and do not require design modifications.