3266Y-1-501RLF Equivalent & Substitute Parts

Part Overview

The 3266Y-1-501RLF is a 500 Ohm, 0.25W through-hole trimmer potentiometer manufactured by Bourns Inc. as part of the Trimpot® 3266 sealed series. This component features cermet resistive material, 12-turn top adjustment, and PC pin termination for circuit board integration. The part maintains active product status with full RoHS3 compliance and REACH affected designation. Equivalent and substitute parts are identified when electrical specifications, mechanical mounting characteristics, and functional performance parameters align within acceptable tolerances for direct circuit board replacement.

Substiute Parts

3266Y-1-501RLF

Bourns Inc.In Stock: 8633266Y-1-501RLF Datasheet

Current PartRFQ

64WR500LF

TT Electronics / BI TechnologiesIn Stock: 229164WR500LF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3266Y-1-501RLF is determined by strict equivalence across the following critical parameters: resistance value (500 Ohms), power rating (0.25W), tolerance (±10%), temperature coefficient (±100ppm/°C), number of turns (12), adjustment type (top adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins). The 64WR500LF from TT Electronics / BI Technologies satisfies all electrical and mechanical requirements for direct substitution. Minor dimensional variation in the face width (0.165" versus 0.170") remains within acceptable mechanical tolerances for standard PCB footprints designed for 0.250" x 0.170" components.

Parameter Comparison

Engineering Selection Recommendations

The 64WR500LF qualifies as a direct electrical and mechanical substitute for the 3266Y-1-501RLF based on complete parameter alignment across all critical specifications. Both components are active products with established supply chains. The 64WR500LF carries RoHS compliance certification and REACH unaffected status, which may provide regulatory advantages in certain applications. The dimensional difference of 0.005" in face width is negligible for standard PCB mounting patterns and does not affect functional performance or mechanical fit in typical circuit board designs. Selection between these parts should be based on availability, packaging requirements (Tape & Reel versus Tube), and supply chain considerations rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can the 64WR500LF replace the 3266Y-1-501RLF in existing circuit designs? A: Yes. Both components share identical electrical specifications (500 Ohms, 0.25W, ±10% tolerance, ±100ppm/°C temperature coefficient, 12-turn adjustment) and mechanical characteristics (through-hole PC pin termination, top adjustment, cermet resistive material). The 0.005" dimensional difference in face width does not affect PCB compatibility.

Q: What is the primary difference between these two parts? A: The main differences are manufacturer (Bourns versus TT Electronics / BI Technologies), packaging format (Tape & Reel versus Tube), and regulatory status (REACH Affected versus REACH Unaffected). Electrical and mechanical performance are equivalent.

Q: Are there any compliance considerations when substituting these parts? A: Both parts meet RoHS requirements. The 64WR500LF carries REACH unaffected status, while the 3266Y-1-501RLF is REACH affected. Applications subject to REACH restrictions may benefit from the 64WR500LF selection.

Q: Does packaging format affect the substitution decision? A: Packaging format (Tape & Reel versus Tube) affects handling, storage, and assembly processes but does not impact electrical or mechanical compatibility. Selection should align with manufacturing equipment and inventory management requirements.

Q: Are the 12-turn adjustment characteristics identical between these parts? A: Yes. Both components feature 12-turn top adjustment with identical temperature coefficient (±100ppm/°C) and tolerance specifications (±10%), ensuring equivalent tuning resolution and stability across the operating temperature range.