CT-94P-201 Equivalent & Substitute Parts

Part Overview

The CT-94P-201 is a 200 Ohm, 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 currently obsolete, making identification of functionally equivalent alternatives essential for ongoing maintenance, repair, and legacy system support. Substitute parts must maintain electrical performance within the specified tolerance and power rating while accommodating the through-hole PC pin mounting interface.

Key Parameters

Parameter	Specification
Resistance Value	200 Ohms
Power Rating	0.5W (1/2W)
Tolerance	±10%
Temperature Coefficient	±100ppm/°C
Resistive Material	Cermet
Mounting Type	Through Hole
Termination Style	PC Pins
Adjustment Type	Side Adjustment
Number of Turns	18
Face Dimension	0.378" x 0.189" (9.60mm x 4.80mm)

Substitute Part Grouping Explanation

Substitution of the CT-94P-201 is determined by strict equivalence across the following critical parameters:

Resistance Value: Must be 200 Ohms
Power Rating: Must be 0.5W (1/2W) minimum
Tolerance: Must be ±10% or tighter
Temperature Coefficient: Must be ±100ppm/°C or better
Resistive Material: Must be Cermet
Mounting Type: Must be Through Hole
Termination Style: Must be PC Pins
Adjustment Type: Must be Side Adjustment

The 3296P-1-201 manufactured by Bourns Inc. meets all substitution criteria. While the number of turns differs (25 turns versus 18 turns), this parameter does not prevent functional substitution when the adjustment range and resolution requirements of the application are compatible with the increased turn count. Physical dimensions remain within acceptable tolerance for PC pin through-hole mounting.

Parameter Comparison

Parameter	CT-94P-201 (Vishay)	3296P-1-201 (Bourns)	Match Status
Resistance Value	200 Ohms	200 Ohms	Equivalent
Power Rating	0.5W	0.5W	Equivalent
Tolerance	±10%	±10%	Equivalent
Temperature Coefficient	±100ppm/°C	±100ppm/°C	Equivalent
Resistive Material	Cermet	Cermet	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Termination Style	PC Pins	PC Pins	Equivalent
Adjustment Type	Side Adjustment	Side Adjustment	Equivalent
Number of Turns	18	25	Different
Face Dimension	0.378" x 0.189" (9.60mm x 4.80mm)	0.375" x 0.190" (9.53mm x 4.83mm)	Compatible
Product Status	Obsolete	Active	Substitute is current

Engineering Selection Recommendations

The 3296P-1-201 is the primary substitute for the obsolete CT-94P-201. Selection is based on the following engineering factors:

Electrical Equivalence: Both parts deliver identical resistance, power rating, tolerance, and temperature coefficient performance. The cermet resistive element ensures comparable stability and frequency response characteristics.

Mechanical Compatibility: PC pin termination and through-hole mounting are identical. Physical dimensions are within acceptable tolerance for standard PCB hole spacing and component placement.

Product Status: The 3296P-1-201 is an active product from Bourns Inc., ensuring ongoing availability and supply chain reliability. The CT-94P-201 is obsolete and no longer manufactured.

Compliance Considerations: The 3296P-1-201 is REACH Affected, indicating compliance with current regulatory requirements. The CT-94P-201 is RoHS non-compliant and REACH Unaffected, reflecting its obsolete status.

Turn Count Consideration: The 3296P-1-201 features 25 turns compared to the 18-turn configuration of the CT-94P-201. This difference does not prevent substitution provided the application does not require the specific adjustment resolution or range of the original 18-turn design. The increased turn count provides finer adjustment granularity.

Frequently Asked Questions (FAQ)

Q: Can the 3296P-1-201 be used as a direct replacement for the CT-94P-201?

A: Yes, the 3296P-1-201 meets all critical electrical and mechanical substitution criteria. Both parts are 200 Ohm, 0.5W cermet trimmer potentiometers with PC pin termination and side adjustment. Physical dimensions are compatible with standard through-hole PCB mounting.

Q: Does the difference in turn count (25 vs. 18) affect substitution?

A: The increased turn count of the 3296P-1-201 provides finer adjustment resolution. This does not prevent substitution unless the application specifically requires the adjustment range or resolution characteristics of the 18-turn design. Verify that the application can accommodate the different turn count.

Q: Are there any compliance differences between the two parts?

A: The 3296P-1-201 is REACH Affected and represents current manufacturing standards. The CT-94P-201 is obsolete and RoHS non-compliant. For applications subject to regulatory compliance requirements, the 3296P-1-201 is the appropriate choice.

Q: Will the 3296P-1-201 fit the same PCB footprint as the CT-94P-201?

A: Yes. Both parts use PC pin termination with compatible through-hole spacing. Physical dimensions are within acceptable tolerance: CT-94P-201 is 0.378" x 0.189" and 3296P-1-201 is 0.375" x 0.190". Standard PCB hole patterns accommodate both configurations.

Q: Is the 3296P-1-201 currently available?

A: Yes, the 3296P-1-201 is an active product manufactured by Bourns Inc. and is available through authorized distributors. The CT-94P-201 is obsolete and no longer manufactured.

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