CT-6EV203 Trimmer Potentiometer: Equivalent & Substitute Parts

Part Overview

The CT-6EV203 is a 20 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based component features top adjustment, PC pin termination, and is designed for applications requiring precision variable resistance in compact form factors. The part maintains active product status with 904 units in current inventory. Substitute parts become necessary when addressing supply constraints, lead time requirements, or specific mechanical fit considerations in PCB layouts.

Substiute Parts

CT-6EV203

Nidec Components CorporationIn Stock: 975CT-6EV203 Datasheet

Current PartRFQ

25PR20KLF

TT Electronics/BIIn Stock: 266225PR20KLF Datasheet

SimilarRFQ

3329H-1-203LF

Bourns Inc.In Stock: 68533329H-1-203LF Datasheet

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T73YE203KT20

Vishay SferniceIn Stock: 2031T73YE203KT20 Datasheet

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T73YP203KT20

Vishay SferniceIn Stock: 1864T73YP203KT20 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CT-6EV203 is determined by strict equivalence across the following critical parameters: 20 kOhm resistance value, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1.0 turn adjustment, top adjustment mechanism, cermet resistive material, through-hole mounting, and PC pin termination. All identified substitute parts meet these core electrical and mechanical specifications. Physical dimensions vary within acceptable tolerances for PCB layout compatibility. Packaging format (bulk versus tube) and inventory levels do not affect electrical substitutability but may influence procurement decisions.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts maintain active product status and meet the electrical specifications required for direct substitution with the CT-6EV203. The 3329H-1-203LF (Bourns) carries REACH Affected designation, whereas the CT-6EV203, 25PR20KLF, T73YE203KT20, and T73YP203KT20 maintain REACH Unaffected status. For applications subject to REACH compliance requirements, the Nidec CT-6EV203, TT Electronics 25PR20KLF, or Vishay T73 series parts are preferred. The 25PR20KLF offers the highest current inventory availability at 2646 units. Physical form factor differences (square versus round versus rectangular) require PCB layout verification but do not affect electrical performance.

Frequently Asked Questions (FAQ)

Q: Can the 3329H-1-203LF substitute for the CT-6EV203 in REACH-regulated applications? A: The 3329H-1-203LF carries REACH Affected status, whereas the CT-6EV203 is REACH Unaffected. Application of this substitute in REACH-regulated designs requires compliance assessment specific to the end-use jurisdiction and product classification.

Q: What is the primary difference between the Vishay T73YE203KT20 and T73YP203KT20? A: Both parts are electrically identical with matching resistance, power rating, tolerance, and temperature coefficient. The designation difference reflects internal design variations within the Vishay T73 series but does not affect substitutability.

Q: Are physical dimensions critical when selecting a substitute? A: Physical dimensions must be verified against PCB layout constraints. The CT-6EV203 features a square form factor (7.00mm x 7.00mm), the 25PR20KLF is square (6.86mm x 6.86mm), the 3329H-1-203LF is round (6.35mm diameter), and both Vishay parts are rectangular (7.00mm x 6.60mm). Verify footprint compatibility before design implementation.

Q: Do packaging differences affect electrical performance? A: Packaging format (bulk versus tube) does not affect electrical characteristics or performance. Packaging selection is driven by procurement volume requirements and inventory management practices.

Q: Which substitute offers the best supply availability? A: The Bourns 3329H-1-203LF maintains the highest inventory level at 6800 units, followed by the TT Electronics 25PR20KLF at 2646 units. Lead time and availability should be confirmed with component distributors for current procurement cycles.