RJ-4EW202 Equivalent & Substitute Parts

Part Overview

The RJ-4EW202 is a 2 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based trimmer features PC pin termination, top adjustment, and 1.0 turn operation. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified for applications requiring alternative sourcing, inventory availability, or specific packaging requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

RJ-4EW202

Nidec Components CorporationIn Stock: 1105RJ-4EW202 Datasheet

Current PartRFQ

25PR2KLF

TT Electronics/BIIn Stock: 560825PR2KLF Datasheet

SimilarRFQ

3329H-1-202LF

Bourns Inc.In Stock: 12023329H-1-202LF Datasheet

SimilarRFQ

72PR2KLF

TT Electronics/BIIn Stock: 142172PR2KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RJ-4EW202 are qualified based on matching the following critical parameters: 2 kOhm resistance value, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1.0 turn operation, top adjustment, cermet resistive material, through-hole mounting, and PC pin termination. All identified substitutes meet these electrical and mechanical requirements. Physical dimensions vary across substitute options, which may affect PCB layout compatibility. Packaging format (bulk versus tube) differs between the main part and certain substitutes, influencing procurement and handling procedures.

Parameter Comparison

Engineering Selection Recommendations

All four parts maintain active product status and meet the specified electrical parameters. The RJ-4EW202 and 72PR2KLF are supplied in bulk packaging, while 25PR2KLF and 3329H-1-202LF are supplied in tube packaging. RoHS3 compliance is confirmed for RJ-4EW202, 3329H-1-202LF, and 72PR2KLF. The 25PR2KLF carries RoHS compliance without ROHS3 designation. REACH status differs: 3329H-1-202LF is REACH Affected, while RJ-4EW202, 25PR2KLF, and 72PR2KLF are REACH Unaffected. Physical dimensions vary significantly across all options, requiring PCB layout verification before substitution. Selection should account for available inventory, packaging requirements, and regulatory compliance needs for the target application.

Frequently Asked Questions (FAQ)

Q: Can the 25PR2KLF substitute for the RJ-4EW202 in a through-hole PCB design? A: Electrical substitution is valid; both parts share identical resistance, power rating, tolerance, temperature coefficient, and termination specifications. Physical dimensions differ (0.270" square versus 0.193" round), requiring PCB footprint verification.

Q: What is the primary difference between the 3329H-1-202LF and other substitutes? A: The 3329H-1-202LF is REACH Affected, whereas RJ-4EW202, 25PR2KLF, and 72PR2KLF are REACH Unaffected. All other electrical and mechanical parameters are equivalent.

Q: Does packaging format affect electrical performance? A: No. Bulk and tube packaging formats do not affect electrical performance. Selection depends on procurement volume, handling procedures, and inventory management requirements.

Q: Are all substitutes suitable for the same PCB layout? A: No. Physical dimensions vary: RJ-4EW202 (4.90mm round), 25PR2KLF (6.86mm square), 3329H-1-202LF (6.35mm round), and 72PR2KLF (9.53mm square). PCB footprint and mounting hole spacing must be verified for each substitute.

Q: Which substitute offers the smallest footprint? A: The RJ-4EW202 has the smallest diameter at 0.193" (4.90mm). The 3329H-1-202LF is the next smallest at 0.250" (6.35mm) diameter.

Q: Are all parts suitable for high-temperature applications? A: All parts share identical temperature coefficient specifications (±100ppm/°C). Temperature performance is equivalent across all options.