CT-94Z-103 Equivalent & Substitute Parts

Part Overview

The CT-94Z-103 is a 10 kOhms 0.5W through-hole trimmer potentiometer with PC pin termination, manufactured by Vishay Beyschlag/Draloric/BC Components. This component features cermet resistive material, 18-turn side adjustment, and rectangular form factor (9.60mm x 4.80mm). The part is currently obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications.

Substiute Parts

CT-94Z-103

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 829CT-94Z-103 Datasheet

Current PartRFQ

CT-94EZ103

Nidec Components CorporationIn Stock: 1180CT-94EZ103 Datasheet

DirectRFQ

3296Z-1-103

Bourns Inc.In Stock: 14173296Z-1-103 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT-94Z-103 is determined by strict equivalence across the following critical parameters: resistance value (10 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), adjustment type (side adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins).

The identified substitute parts maintain these core electrical and mechanical specifications. Variations in number of turns (18 vs. 25) and face dimensions represent acceptable mechanical differences within the through-hole trimmer potentiometer category, provided the functional performance envelope remains unchanged for the application.

Parameter Comparison

Engineering Selection Recommendations

CT-94EZ103 (Nidec Components Corporation) is the direct functional equivalent, maintaining identical electrical specifications and mechanical form factor with 18-turn adjustment. This part is currently in active production status with ROHS3 compliance certification, making it suitable for new designs and RoHS-regulated applications.

3296Z-1-103 (Bourns Inc.) provides electrical equivalence with identical resistance, power rating, tolerance, and temperature coefficient. The Trimpot® 3296 series features 25-turn adjustment and marginally larger face dimensions (10.03mm x 4.83mm vs. 9.60mm x 4.80mm). This part remains in active production but does not carry RoHS3 compliance. The increased turn count provides finer adjustment resolution, which may be advantageous in applications requiring precision tuning.

Frequently Asked Questions (FAQ)

Q: Can CT-94EZ103 be used as a direct replacement for CT-94Z-103?

A: Yes. CT-94EZ103 maintains identical electrical parameters (10 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C) and mechanical specifications (18-turn side adjustment, PC pin termination, 9.60mm x 4.80mm face). The part is in active production with ROHS3 compliance.

Q: What is the difference between the 18-turn and 25-turn versions?

A: Number of turns affects adjustment resolution. The 18-turn CT-94EZ103 provides coarser adjustment steps, while the 25-turn 3296Z-1-103 offers finer tuning capability. Both maintain the same electrical performance envelope and are mechanically compatible with through-hole PCB layouts, though the 3296Z-1-103 has marginally larger face dimensions.

Q: Are there RoHS compliance differences between substitutes?

A: CT-94EZ103 carries ROHS3 compliance certification. 3296Z-1-103 is RoHS non-compliant. For applications subject to RoHS regulations, CT-94EZ103 is the appropriate selection.

Q: Can 3296Z-1-103 be used in space-constrained PCB layouts?

A: The 3296Z-1-103 face dimension is 10.03mm x 4.83mm compared to 9.60mm x 4.80mm for the original part. Verify PCB footprint clearances before substitution in layouts with tight component spacing.

Q: What is the inventory status of substitute parts?

A: CT-94EZ103 has 1112 pieces in stock. 3296Z-1-103 has 1323 pieces in stock. Both are available for immediate procurement.