CT6H503 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The CT6H503 is a 50 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Vishay Beyschlag/Draloric/BC Components. This cermet-based, side-adjustment component features PC pin termination and is designed for applications requiring precision variable resistance in compact form factors.

The CT6H503 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for legacy systems utilizing this component.

Substiute Parts

CT6H503

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1048CT6H503 Datasheet

Current PartRFQ

3362M-1-503

Bourns Inc.In Stock: 10483362M-1-503 Datasheet

MFR RecommendedRFQ

CT-6EX503

Nidec Components CorporationIn Stock: 1405CT-6EX503 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CT6H503 are qualified based on the following electrical and mechanical parameters:

• Resistance value: 50 kOhms (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Tolerance: ±10% (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Number of turns: 1 (exact match required)
• Adjustment type: Side Adjustment (exact match required)
• Resistive material: Cermet (exact match required)
• Mounting type: Through Hole (exact match required)
• Termination style: PC Pins (exact match required)

Substitutes may vary in physical dimensions, packaging format, RoHS compliance status, and product lifecycle status, provided all electrical and mechanical parameters remain within specification.

Parameter Comparison

Engineering Selection Recommendations

Both 3362M-1-503 and CT-6EX503 meet all electrical and mechanical specifications for direct substitution of the CT6H503.

The 3362M-1-503 (Bourns Trimpot® 3362 - Sealed series) is actively manufactured and available in tube packaging. This part maintains RoHS non-compliant status consistent with the original CT6H503.

The CT-6EX503 (Nidec Components Corporation, CT6 series) is actively manufactured and available in bulk packaging. This part achieves ROHS3 compliance, providing an advantage for applications subject to RoHS regulatory requirements. Physical dimensions match the original CT6H503 specification.

Selection between these substitutes should be based on packaging requirements, supply chain availability, and regulatory compliance needs of the end application.

Frequently Asked Questions (FAQ)

Q: Can the 3362M-1-503 or CT-6EX503 be used as direct replacements for the CT6H503?

A: Yes. Both parts match all critical electrical parameters (50 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C temperature coefficient, 1 turn, side adjustment, cermet material, through-hole mounting, PC pin termination). Physical dimensions and packaging differ but do not affect electrical compatibility in standard PCB applications.

Q: What are the physical dimension differences between these parts?

A: The CT6H503 and CT-6EX503 share identical face dimensions (0.323" x 0.276" / 8.20mm x 7.00mm). The 3362M-1-503 has a slightly smaller face dimension (0.275" x 0.260" / 6.99mm x 6.60mm). Verify PCB layout clearances if space constraints exist.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance status reflects manufacturing process and material composition but does not alter electrical characteristics. The CT-6EX503 ROHS3 compliance provides regulatory advantage without performance change.

Q: Are there packaging considerations for these substitutes?

A: The 3362M-1-503 is supplied in tube packaging; the CT-6EX503 is supplied in bulk packaging. Confirm packaging compatibility with assembly and handling processes.

Q: What is the difference between the CT6H503 and CT-6EX503 series designation?

A: Both are CT6 series components from different manufacturers (Vishay versus Nidec). Series designation indicates product family and design lineage but does not affect substitution eligibility when all electrical and mechanical parameters match.