CT20P104 Equivalent & Substitute Parts

Part Overview

The CT20P104 is a 100 kOhms 0.5W through-hole trimmer potentiometer manufactured by Vishay Beyschlag/Draloric/BC Components. This cermet-based, side-adjustment component features PC pin termination and 15-turn adjustment capability. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications requiring this specific resistance value and power rating.

Substiute Parts

CT20P104

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 733CT20P104 Datasheet

Current PartRFQ

CT-20EP104

Nidec Components CorporationIn Stock: 1310CT-20EP104 Datasheet

DirectRFQ

CT-20EX104

Nidec Components CorporationIn Stock: 1148CT-20EX104 Datasheet

DirectRFQ

3006P-1-104

Bourns Inc.In Stock: 42443006P-1-104 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT20P104 is determined by matching the following critical parameters: resistance value (100 kOhms), adjustment type (side adjustment), resistive material (cermet), mounting type (through hole), termination style (PC pins), number of turns (15), and tolerance (±10%). Temperature coefficient (±100ppm/°C) and moisture sensitivity level (MSL 1) further define compatibility.

The substitute parts are grouped into two categories:

Direct Equivalents (CT-20EP104, CT-20EX104): These parts match all electrical and mechanical parameters of the CT20P104, including power rating (0.5W), face dimensions (0.252" x 0.197"), and all functional specifications. Both are manufactured by Nidec Components Corporation and carry active product status with RoHS3 compliance.

Manufacturer-Recommended Substitute (3006P-1-104): This Bourns Inc. component matches all core parameters except power rating (0.75W vs. 0.5W) and face dimensions (0.250" x 0.190" vs. 0.252" x 0.197"). The increased power rating provides additional thermal margin, and dimensional variance remains within typical PCB layout tolerances for through-hole components.

Parameter Comparison

Engineering Selection Recommendations

For RoHS3-Compliant Applications: CT-20EP104 and CT-20EX104 are preferred substitutes. Both parts maintain identical electrical and mechanical specifications to the CT20P104 while providing active product status and full RoHS3 compliance. These direct equivalents eliminate design modification requirements.

For Applications with REACH Compliance Requirements: CT-20EP104 and CT-20EX104 maintain REACH Unaffected status, matching the original CT20P104. The 3006P-1-104 carries REACH Affected status and requires compliance evaluation for regulated substance content.

For Applications Tolerating Dimensional Variance: The 3006P-1-104 offers increased power dissipation capability (0.75W vs. 0.5W) with minor face dimension differences (0.250" x 0.190" vs. 0.252" x 0.197"). This option provides superior thermal performance for circuits operating near the 0.5W power limit. Dimensional tolerance of ±0.002" is typical for through-hole trimmer potentiometers and accommodates standard PCB hole spacing.

Frequently Asked Questions (FAQ)

Q: Can CT-20EP104 or CT-20EX104 be used as direct replacements for CT20P104?

A: Yes. Both parts match all electrical parameters (100 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C temperature coefficient, 15-turn adjustment) and mechanical specifications (face dimensions, PC pin termination, through-hole mounting). Both are active products with RoHS3 compliance.

Q: What is the difference between CT-20EP104 and CT-20EX104?

A: Both parts are manufactured by Nidec Components Corporation and share identical electrical and mechanical specifications. The difference lies in the base product number designation (CT20EP vs. CT20EX). Selection between these parts depends on supplier availability and internal part numbering systems.

Q: Can 3006P-1-104 replace CT20P104 in all applications?

A: The 3006P-1-104 matches all core electrical parameters and adjustment characteristics. The primary differences are increased power rating (0.75W vs. 0.5W) and minor face dimension variance (0.250" x 0.190" vs. 0.252" x 0.197"). The higher power rating is beneficial for thermal margin. Dimensional differences are within standard PCB layout tolerances for through-hole components. REACH compliance status differs and requires evaluation for regulated applications.

Q: What does "15-turn adjustment" mean?

A: This specification indicates the potentiometer requires 15 complete rotations of the adjustment screw to traverse the full resistance range from minimum to maximum. All substitute parts maintain this same adjustment resolution.

Q: Are there packaging differences between substitute parts?

A: CT-20EP104 and CT-20EX104 are supplied in bulk packaging. The 3006P-1-104 is supplied in tube packaging. Packaging format does not affect component functionality or electrical performance.

Q: What is the significance of RoHS3 compliance for these parts?

A: RoHS3 compliance indicates the component meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. CT-20EP104 and CT-20EX104 carry RoHS3 compliance; the original CT20P104 and 3006P-1-104 do not. This distinction is critical for applications subject to EU environmental regulations or customer RoHS requirements.