Equivalent & Substitute Parts for 3362R-1-203

Part Overview

The Bourns 3362R-1-203 is a 20 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and top adjustment. This sealed Trimpot® 3362 series component is designed for applications requiring precision resistive adjustment in compact form factors. The part is currently active in production with 692 units in stock. Substitute parts are identified to address inventory availability, compliance requirements, or specific application constraints while maintaining functional equivalence within defined electrical and mechanical parameters.

Substiute Parts

3362R-1-203

Bourns Inc.In Stock: 7433362R-1-203 Datasheet

Current PartRFQ

3362R-1-203LF

Bourns Inc.In Stock: 18373362R-1-203LF Datasheet

DirectRFQ

25PR20KLF

TT Electronics/BIIn Stock: 266225PR20KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3362R-1-203 is determined by 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 (top adjustment), resistive material (cermet), mounting type (through hole), and termination style (PC pins).

Two substitute parts meet these criteria:

Direct Manufacturer Substitute (3362R-1-203LF): Identical electrical and mechanical specifications within the same Bourns Trimpot® 3362 series. Differs only in RoHS compliance status (ROHS3 Compliant vs. non-compliant).

Cross-Manufacturer Substitute (25PR20KLF): TT Electronics/BI 25 series trimmer potentiometer matching all electrical parameters and core mechanical specifications. Minor dimensional variation exists in face geometry (square 0.270" x 0.270" vs. rectangular 0.275" x 0.260"), though both maintain equivalent footprint compatibility for standard through-hole PC pin applications.

Parameter Comparison

Engineering Selection Recommendations

3362R-1-203LF is the primary direct substitute when inventory of the original 3362R-1-203 is insufficient. This part maintains identical electrical and mechanical specifications while offering ROHS3 compliance, making it suitable for applications with RoHS regulatory requirements. Both parts are REACH Affected and carry the same ECCN and HTSUS classifications.

25PR20KLF serves as a cross-manufacturer alternative when Bourns Trimpot® 3362 series availability is constrained. This TT Electronics/BI component provides equivalent electrical performance and maintains through-hole PC pin compatibility. The 25PR20KLF offers the additional advantage of REACH Unaffected status. The minor dimensional difference (square vs. rectangular face geometry) does not affect electrical function or standard PCB mounting compatibility for through-hole applications, though physical layout space should be verified for designs with tight component spacing constraints.

Frequently Asked Questions (FAQ)

Q: Can 3362R-1-203LF be used as a direct replacement for 3362R-1-203?

A: Yes. Both parts are electrically and mechanically identical within the Bourns Trimpot® 3362 series. The primary difference is RoHS compliance status. Selection depends on regulatory requirements for your application.

Q: What is the key difference between 3362R-1-203 and 25PR20KLF?

A: Both parts share identical electrical specifications (20 kOhms, 0.5W, ±10% tolerance, ±100ppm/°C, 1 turn, top adjustment, cermet, through-hole PC pins). The 25PR20KLF differs in manufacturer (TT Electronics/BI vs. Bourns), face geometry (square vs. rectangular), and REACH compliance status (unaffected vs. affected).

Q: Are there any PCB layout considerations when substituting with 25PR20KLF?

A: The 25PR20KLF has a square face dimension (0.270" x 0.270") compared to the rectangular 3362R-1-203 (0.275" x 0.260"). Both maintain equivalent through-hole PC pin footprints. Verify available board space if component density is a constraint.

Q: Which substitute part should I select for RoHS-compliant applications?

A: Both 3362R-1-203LF and 25PR20KLF are RoHS compliant. The 3362R-1-203LF maintains the Bourns Trimpot® 3362 series lineage, while 25PR20KLF offers the additional benefit of REACH Unaffected status.

Q: Do all three parts have the same electrical performance specifications?

A: Yes. All three parts specify 20 kOhms resistance, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1 turn, top adjustment, cermet resistive material, and PC pin termination. Electrical performance is equivalent across all three options.