CT-94P-205 Equivalent & Substitute Parts

Part Overview

The CT-94P-205 is a 2 MOhm, 0.5W through-hole trimmer potentiometer with cermet resistive material, PC pin termination, and side adjustment capability. Manufactured by Vishay Beyschlag/Draloric/BC Components, this part is classified as obsolete. Due to its obsolete status and limited availability from original manufacturers, equivalent substitute parts are necessary to maintain design continuity and ensure procurement reliability for new production runs and field replacements.

Substiute Parts

CT-94P-205

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 922CT-94P-205 Datasheet

Current PartRFQ

CT-94EP205

Nidec Components CorporationIn Stock: 1222CT-94EP205 Datasheet

DirectRFQ

3296P-1-205

Bourns Inc.In Stock: 10753296P-1-205 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT-94P-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: Side Adjustment (exact match required)
• Resistive material: Cermet (exact match required)
• Mounting type: Through Hole (exact match required)
• Termination style: PC Pins (exact match required)

Variations in the following parameters are permitted within the substitute classification:

• Number of turns (18 or 25 turns acceptable)
• Physical dimensions (rectangular or square face configurations)
• Manufacturer identity
• Product status (active or obsolete)
• RoHS compliance status
• Packaging format

Parameter Comparison

Engineering Selection Recommendations

Both CT-94EP205 and 3296P-1-205 meet the core electrical and mechanical requirements for substitution of the CT-94P-205.

CT-94EP205 (Nidec Components Corporation): This part maintains identical electrical specifications and turn count (18 turns) to the original CT-94P-205. It carries active product status and RoHS3 compliance, making it suitable for applications requiring modern environmental standards. The square face configuration (9.60mm x 9.60mm) differs from the original rectangular form factor.

3296P-1-205 (Bourns Inc.): This part maintains identical electrical specifications but features 25 turns instead of 18. It carries active product status and is part of the Trimpot® 3296 sealed series. RoHS compliance status is non-compliant, matching the original part. The rectangular face configuration (9.53mm x 4.83mm) closely approximates the original dimensions.

Selection between these substitutes depends on design constraints: turn count requirements, physical space limitations, and regulatory compliance mandates.

Frequently Asked Questions (FAQ)

Q: Can CT-94EP205 and 3296P-1-205 be used interchangeably with CT-94P-205?

A: Both parts satisfy the core electrical parameters (2 MOhms, 0.5W, ±10% tolerance, ±100ppm/°C temperature coefficient, cermet material, side adjustment, through-hole mounting, PC pins). However, the 3296P-1-205 features 25 turns versus the original 18 turns, which affects adjustment resolution and may impact circuit tuning characteristics. Physical dimensions also differ between all three parts.

Q: What is the significance of the turn count difference?

A: The CT-94P-205 and CT-94EP205 both feature 18 turns, while the 3296P-1-205 features 25 turns. Higher turn count provides finer adjustment resolution but requires more rotation to achieve full resistance range. This parameter must align with circuit design requirements.

Q: Does RoHS compliance status affect substitution eligibility?

A: RoHS compliance is a regulatory and procurement consideration, not an electrical substitution criterion. The CT-94EP205 is RoHS3 compliant, while both the original CT-94P-205 and 3296P-1-205 are non-compliant. Selection depends on end-application regulatory requirements.

Q: Are the physical dimensions critical for substitution?

A: Physical dimensions affect PCB layout and mechanical fit. The CT-94P-205 is rectangular (9.60mm x 4.80mm), CT-94EP205 is square (9.60mm x 9.60mm), and 3296P-1-205 is rectangular (9.53mm x 4.83mm). Design space constraints must be evaluated before selection.

Q: What is the difference between bulk and tube packaging?

A: Packaging format affects order quantities and handling. CT-94EP205 is supplied in bulk packaging, while 3296P-1-205 is supplied in tube packaging. This is a procurement consideration and does not affect electrical or mechanical performance.