CT9X503 Equivalent & Substitute Parts Reference

Part Overview

The CT9X503, manufactured by Vishay Beyschlag/Draloric/BC Components, is a trimmer potentiometer with a resistance of 50 kOhms, a power rating of 0.5W (1/2W), and features side adjustment via PC pins in through-hole mounting. The unit has 18 turns and utilizes a cermet resistive material. Its part status is "Obsolete," making it necessary to identify equivalent and substitute trimmer potentiometers with matching electrical and mechanical parameters to ensure continued production, repair, or design compatibility.

Substiute Parts

CT9X503

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 865CT9X503 Datasheet

Current PartRFQ

CT-9EX503

Nidec Components CorporationIn Stock: 1371CT-9EX503 Datasheet

DirectRFQ

3296X-1-503

Bourns Inc.In Stock: 25903296X-1-503 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are identified strictly by matching the main mechanical and electrical parameters: resistance (50 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), and similar size/dimension. Only components fully specified within these parameters are considered direct substitutes.

Key parameters for substitution:

• Resistance
• Power (Watts)
• Tolerance
• Temperature Coefficient
• Number of Turns
• Adjustment Type
• Resistive Material
• Mounting Type
• Termination Style
• Size / Dimension
• RoHS Status
• Moisture Sensitivity Level (MSL)
• REACH Status

Parameter Comparison

Engineering Selection Recommendations

The main part, CT9X503, is obsolete, necessitating the selection of substitutes with equivalent parameters for continuity in assembly and manufacturing. Both CT-9EX503 and 3296X-1-503 match the core electrical and mechanical parameters required for substitution. The CT-9EX503 provides RoHS 3 compliance and REACH unaffected status, aligning with updated environmental regulations. The 3296X-1-503 holds the same RoHS status as the original and offers active product status. Part number selection may be determined by available inventory, environmental compliance requirements, and direct matching to the parameters presented.

Frequently Asked Questions (FAQ)

Q1: What critical parameters must match for substitutes in trimmer potentiometers?
A: The substitute must match the resistance, power rating, tolerance, temperature coefficient, adjustment type, resistive material, mounting type, termination style, and size/dimension.

Q2: Do substitute parts offer the same number of adjustment turns?
A: CT-9EX503 matches the original’s 18 turns. The 3296X-1-503 offers 25 turns while maintaining the same electrical specifications.

Q3: How important is RoHS status in selecting substitutes?
A: RoHS compliance is critical when adhering to environmental regulations. Only select CT-9EX503 if RoHS 3 compliance is required.

Q4: Will differences in physical size impact mechanical compatibility?
A: Substitute parts presented have similar, but not identical, size/dimensions. Compatibility with PCB and enclosure constraints should be verified strictly according to the listed measurements.

Q5: What are the impacts of different REACH statuses among these parts?
A: CT9X503 and CT-9EX503 are REACH unaffected, while 3296X-1-503 is REACH affected. Selection may depend on project-specific chemical regulation requirements and documentation needs.