CT6H203 Equivalent & Substitute Parts

Part Overview

The CT6H203 is a 20 kOhms 0.5W through-hole trimmer potentiometer with PC pin termination, side adjustment, and cermet resistive material manufactured by Vishay Beyschlag/Draloric/BC Components. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure direct replacement capability in existing circuit designs.

Substiute Parts

CT6H203

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1134CT6H203 Datasheet

Current PartRFQ

3362M-1-203

Bourns Inc.In Stock: 15523362M-1-203 Datasheet

MFR RecommendedRFQ

CT-6EX203

Nidec Components CorporationIn Stock: 6030CT-6EX203 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CT6H203 are qualified based on strict equivalence across the following critical parameters: resistance value (20 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (1), adjustment type (side adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins). All substitute parts must match these electrical and mechanical specifications to ensure functional interchangeability. Physical dimensions may vary within acceptable tolerances for PCB layout accommodation.

Parameter Comparison

Engineering Selection Recommendations

Both 3362M-1-203 (Bourns Inc.) and CT-6EX203 (Nidec Components Corporation) are active product alternatives to the obsolete CT6H203. The 3362M-1-203 maintains identical electrical and mechanical specifications with non-compliant RoHS status matching the original part. The CT-6EX203 provides the same functional equivalence with the additional advantage of ROHS3 compliance, making it suitable for applications requiring modern environmental standards. Selection between these alternatives should be based on compliance requirements and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the 3362M-1-203 or CT-6EX203 be used as direct replacements for the CT6H203?

A: Yes. Both parts meet all critical electrical specifications (20 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C temperature coefficient, 1 turn, side adjustment, cermet material, through-hole mounting, PC pin termination). Physical dimensions are within acceptable variation for standard PCB layouts.

Q: What is the difference between the two substitute options?

A: The primary difference is RoHS compliance status. The CT-6EX203 is ROHS3 compliant, while the 3362M-1-203 maintains non-compliant status consistent with the original CT6H203. Both are electrically and mechanically equivalent.

Q: Are there packaging differences between these parts?

A: The 3362M-1-203 is supplied in tube packaging, while the CT-6EX203 is supplied in bulk packaging. This affects procurement and handling but does not impact electrical or mechanical performance.

Q: Do the physical dimensions require PCB layout modifications?

A: The CT6H203 and CT-6EX203 share identical face dimensions (0.323" x 0.276" / 8.20mm x 7.00mm). The 3362M-1-203 has slightly smaller dimensions (0.275" x 0.260" / 6.99mm x 6.60mm). Standard PCB layouts accommodate this variation without modification.

Q: Which substitute part should be selected for new designs?

A: Selection is based on compliance requirements. For applications requiring RoHS3 compliance, the CT-6EX203 is the appropriate choice. For applications without compliance constraints, either part is suitable based on availability and supply chain considerations.