CT-94X-202 Equivalent & Substitute Parts

Part Overview

The CT-94X-202 is a 2 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Vishay Beyschlag/Draloric/BC Components. This cermet-based component features 18-turn side adjustment with PC pin termination and rectangular form factor (9.60mm x 4.80mm). The part is currently obsolete, necessitating identification of equivalent alternatives that maintain functional and mechanical compatibility for existing designs or inventory replenishment.

Key Parameters

Parameter	Value
Resistance	2 kOhms
Power Rating	0.5W (1/2W)
Tolerance	±10%
Temperature Coefficient	±100ppm/°C
Number of Turns	18
Adjustment Type	Side Adjustment
Resistive Material	Cermet
Mounting Type	Through Hole
Termination Style	PC Pins
Face Dimension	0.378" x 0.189" (9.60mm x 4.80mm)
Series	CT94

Substitute Part Grouping Explanation

Substitution eligibility for the CT-94X-202 is determined by strict equivalence across the following critical parameters:

Resistance value: 2 kOhms
Power rating: 0.5W (1/2W)
Tolerance: ±10%
Temperature coefficient: ±100ppm/°C
Adjustment type: Side Adjustment
Resistive material: Cermet
Mounting type: Through Hole
Termination style: PC Pins

Two substitute parts meet these core electrical and mechanical requirements. The CT-94EX202 (Nidec Components Corporation) provides direct equivalence within the same CT94 series with identical specifications and active product status. The 3296X-1-202 (Bourns Inc.) maintains electrical compatibility but introduces a variation in turn count (25 turns versus 18 turns) and slightly different face dimensions, requiring evaluation for specific application constraints.

Parameter Comparison

Parameter	CT-94X-202 (Main)	CT-94EX202 (Direct)	3296X-1-202 (Alternative)
Manufacturer	Vishay Beyschlag/Draloric/BC Components	Nidec Components Corporation	Bourns Inc.
Resistance	2 kOhms	2 kOhms	2 kOhms
Power Rating	0.5W (1/2W)	0.5W (1/2W)	0.5W (1/2W)
Tolerance	±10%	±10%	±10%
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C
Number of Turns	18	18	25
Adjustment Type	Side Adjustment	Side Adjustment	Side Adjustment
Resistive Material	Cermet	Cermet	Cermet
Mounting Type	Through Hole	Through Hole	Through Hole
Termination Style	PC Pins	PC Pins	PC Pins
Face Dimension	0.378" x 0.189" (9.60mm x 4.80mm)	0.378" x 0.189" (9.60mm x 4.80mm)	0.395" x 0.190" (10.03mm x 4.83mm)
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	RoHS3 Compliant	RoHS non-compliant
Inventory Availability	886 Pcs	1133 Pcs	2278 Pcs

Engineering Selection Recommendations

The CT-94EX202 (Nidec Components Corporation) is the primary substitute for the obsolete CT-94X-202. This part maintains identical electrical specifications, turn count, and physical dimensions while offering active product status and RoHS3 compliance. Selection of CT-94EX202 eliminates obsolescence risk and aligns with current regulatory requirements.

The 3296X-1-202 (Bourns Inc., Trimpot® 3296 series) serves as an alternative substitute where design constraints permit. This part maintains all critical electrical parameters but introduces two variations: increased turn count (25 turns versus 18 turns) and marginally larger face dimensions (0.395" x 0.190" versus 0.378" x 0.189"). These differences may affect adjustment resolution and PCB layout compatibility. The 3296X-1-202 remains RoHS non-compliant and is subject to REACH regulations, whereas CT-94EX202 is RoHS3 compliant and REACH unaffected.

Frequently Asked Questions (FAQ)

Q: Can CT-94EX202 be used as a direct replacement for CT-94X-202?

A: Yes. The CT-94EX202 maintains identical electrical specifications (2 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C), identical turn count (18 turns), and identical physical dimensions (9.60mm x 4.80mm face). Both feature cermet resistive material, side adjustment, through-hole mounting, and PC pin termination. The primary advantage is active product status and RoHS3 compliance.

Q: What is the difference between the 18-turn CT-94EX202 and the 25-turn 3296X-1-202?

A: Turn count affects adjustment resolution. The 25-turn 3296X-1-202 provides finer adjustment granularity per rotation compared to the 18-turn CT-94EX202. Applications requiring coarse adjustment may tolerate the 25-turn variant; applications requiring specific adjustment resolution should maintain the 18-turn specification. Both maintain identical electrical performance at rated resistance.

Q: Are there physical compatibility concerns with the 3296X-1-202?

A: The 3296X-1-202 face dimensions (10.03mm x 4.83mm) differ slightly from the CT-94X-202 (9.60mm x 4.80mm). PCB layouts designed for the original part may require minor adjustment to accommodate the marginally larger footprint. Verify clearance in confined spaces before substitution.

Q: What is the RoHS compliance status of these substitutes?

A: CT-94EX202 is RoHS3 compliant. The 3296X-1-202 is RoHS non-compliant. Applications subject to RoHS requirements should prioritize CT-94EX202.

Q: Is REACH compliance a consideration?

A: CT-94EX202 is REACH unaffected. The 3296X-1-202 is REACH affected. Applications subject to REACH regulations should prioritize CT-94EX202.

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