62PR25KLF Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The 62PR25KLF is a 25 kOhm, 0.5W through-hole trimmer potentiometer manufactured by TT Electronics / BI Technologies. This cermet-based component features top adjustment with PC pin termination and is designed for precision resistance tuning applications. The product is currently obsolete, making equivalent substitutes necessary for ongoing maintenance, repair, and legacy system support.

Substiute Parts

62PR25KLF

TT Electronics / BI TechnologiesIn Stock: 76262PR25KLF Datasheet

Current PartRFQ

3329P-1-253LF

Bourns Inc.In Stock: 11923329P-1-253LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 62PR25KLF is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match identically for direct substitution:

• Resistance value: 25 kOhms
• Power rating: 0.5W (1/2W)
• Tolerance: ±10%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 1
• Adjustment type: Top Adjustment
• Resistive material: Cermet
• Mounting type: Through Hole
• Termination style: PC Pins
• Physical size: Round - 0.250" Dia (6.35mm)
• RoHS compliance: ROHS3 Compliant

The 3329P-1-253LF from Bourns Inc. meets all these criteria and qualifies as a direct equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The 3329P-1-253LF (Bourns Trimpot® 3329 - Sealed) is the qualified substitute for the obsolete 62PR25KLF. Both components are ROHS3 compliant and share identical electrical and mechanical specifications. The Bourns part maintains active product status with current manufacturing support, ensuring long-term availability for replacement and new applications. Selection of the 3329P-1-253LF eliminates obsolescence risk while preserving full functional compatibility with existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the 3329P-1-253LF directly replace the 62PR25KLF without circuit modification?

A: Yes. Both components share identical resistance, power rating, tolerance, temperature coefficient, adjustment type, resistive material, mounting configuration, and physical dimensions. No circuit modifications are required.

Q: What is the difference between the two parts?

A: The primary difference is manufacturer and product status. The 62PR25KLF (TT Electronics) is obsolete, while the 3329P-1-253LF (Bourns) is active. Both meet ROHS3 compliance. The Bourns part is packaged in tubes versus the TT Electronics packaging specification.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant. The Bourns part is REACH Affected, while the TT Electronics part is REACH Unaffected. Both carry the same ECCN (EAR99) and HTSUS classification.

Q: What does "1 Turn" mean for these trimmer potentiometers?

A: The number of turns indicates the rotational range for resistance adjustment. A 1-turn potentiometer completes its full resistance range in a single 360-degree rotation, providing faster adjustment compared to multi-turn designs.

Q: Is the 0.250" diameter dimension critical for PCB layout?

A: Yes. The 0.250" (6.35mm) round diameter is a mechanical specification that determines mounting hole size and board space allocation. Substitutes must match this dimension exactly.