CT-94P-102 Equivalent & Substitute Parts

Part Overview

The CT-94P-102 is a 1 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Vishay Beyschlag/Draloric/BC Components. This cermet-based side-adjustment trimmer features 18 turns and PC pin termination in a rectangular form factor. The part is currently obsolete, making equivalent substitutes necessary for ongoing production, maintenance, and repair applications where this component specification remains functionally required.

Substiute Parts

CT-94P-102

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 758CT-94P-102 Datasheet

Current PartRFQ

CT-94EP102

Nidec Components CorporationIn Stock: 1284CT-94EP102 Datasheet

DirectRFQ

3296P-1-102

Bourns Inc.In Stock: 22863296P-1-102 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT-94P-102 is determined by strict equivalence across the following critical parameters:

• Electrical Specifications: Resistance value (1 kOhms), power rating (0.5W), tolerance (±10%), and temperature coefficient (±100ppm/°C) must match exactly
• Functional Design: Adjustment type (side adjustment), resistive material (cermet), and number of turns must be compatible with the original circuit design
• Physical Interface: Mounting type (through hole), termination style (PC pins), and form factor must permit direct board-level substitution
• Environmental Compliance: Moisture sensitivity level and regulatory status determine suitability for specific applications

The identified substitutes meet these core electrical and mechanical requirements while offering improved product status or compliance profiles.

Parameter Comparison

Engineering Selection Recommendations

CT-94EP102 is the primary direct substitute. This part maintains identical electrical specifications (1 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C) and functional parameters (18 turns, side adjustment, cermet material, PC pin termination). The CT-94EP102 is manufactured by Nidec Components Corporation and holds active product status with RoHS3 compliance, providing improved regulatory alignment compared to the obsolete CT-94P-102. The square form factor (0.378" x 0.378") differs from the rectangular original (0.378" x 0.189"), requiring physical board layout verification.

3296P-1-102 is an alternative substitute manufactured by Bourns Inc. under the Trimpot® 3296 series. This part matches all critical electrical specifications and maintains the same adjustment type, resistive material, and termination style. The 3296P-1-102 features 25 turns instead of 18, which affects adjustment resolution and may require circuit re-tuning. The rectangular form factor (0.375" x 0.190") closely approximates the original dimensions. This part is active but RoHS non-compliant and REACH-affected, offering no compliance advantage over the original.

Selection between CT-94EP102 and 3296P-1-102 depends on form factor constraints, turn-count sensitivity in the application, and regulatory compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can CT-94EP102 replace CT-94P-102 directly on the PCB?

A: CT-94EP102 maintains identical electrical and functional specifications. However, the form factor differs: CT-94EP102 is square (0.378" x 0.378") while CT-94P-102 is rectangular (0.378" x 0.189"). Physical board layout must be verified to confirm the larger footprint does not create mechanical interference.

Q: What is the impact of the 25-turn specification in 3296P-1-102 versus the 18-turn original?

A: The 3296P-1-102 provides finer adjustment resolution due to increased turns. This may alter tuning characteristics and require circuit re-optimization. Applications with tight adjustment tolerances should evaluate whether the increased resolution is beneficial or requires recalibration.

Q: Are there compliance differences between the substitutes?

A: CT-94EP102 is RoHS3 compliant, providing regulatory advantage for new designs and applications subject to RoHS requirements. The 3296P-1-102 is RoHS non-compliant and REACH-affected, offering no compliance improvement over the obsolete CT-94P-102.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical interchangeability is confirmed across all three parts for the specified 1 kOhm, 0.5W application. Physical interchangeability requires form factor and mounting space verification. The turn-count difference in 3296P-1-102 may necessitate circuit performance re-evaluation.

Q: What packaging formats are available for these substitutes?

A: CT-94EP102 is supplied in bulk packaging. 3296P-1-102 is supplied in tube packaging. Packaging selection should align with production volume and handling requirements.