Bourns 3252W-1-503 Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3252W-1-503 is a 50 kOhm chassis mount trimmer potentiometer with 0.75W power rating, designed for PC pin termination and top adjustment. This sealed Trimpot® 3252 series component operates with a 25-turn adjustment mechanism and cermet resistive element. The part is currently active in production with 802 units in stock. Finding equivalent or substitute parts may be necessary due to inventory constraints, lead time requirements, or specific compliance needs for end applications.

Substiute Parts

3252W-1-503

Bourns Inc.In Stock: 8473252W-1-503 Datasheet

Current PartRFQ

3252W-1-503LF

Bourns Inc.In Stock: 8033252W-1-503LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3252W-1-503LF qualifies as a direct substitute based on identical electrical and mechanical parameters. Substitution criteria are strictly limited to the following parameters, all of which must match:

• Resistance value: 50 kOhms
• Power rating: 0.75W
• Tolerance: ±10%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 25
• Adjustment type: Top Adjustment
• Resistive material: Cermet
• Mounting type: Chassis Mount
• Termination style: PC Pins
• Physical dimensions: Rectangular - 0.500" x 0.220" Face (12.70mm x 5.59mm)
• Series: Trimpot® 3252 - Sealed

The primary distinction between the main part and its substitute lies in RoHS compliance status, which does not affect electrical or mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both the 3252W-1-503 and 3252W-1-503LF are electrically and mechanically identical. Selection between these parts should be based on regulatory compliance requirements for the end application.

The 3252W-1-503LF carries ROHS3 compliance certification, making it the appropriate choice for applications subject to RoHS Directive 2011/65/EU requirements. The 3252W-1-503 is RoHS non-compliant and should be selected only when RoHS compliance is not a requirement.

Both parts maintain REACH Affected status and share identical electrical performance characteristics, mechanical dimensions, and termination specifications. Inventory availability is comparable between both options.

Frequently Asked Questions (FAQ)

Q: Are the 3252W-1-503 and 3252W-1-503LF electrically interchangeable?

A: Yes. Both parts have identical resistance (50 kOhms), power rating (0.75W), tolerance (±10%), temperature coefficient (±100ppm/°C), and all other electrical parameters.

Q: What is the difference between these two part numbers?

A: The primary difference is RoHS compliance status. The 3252W-1-503LF is ROHS3 compliant, while the 3252W-1-503 is RoHS non-compliant. All electrical and mechanical specifications are identical.

Q: Can I use the 3252W-1-503LF as a replacement for the 3252W-1-503 in my design?

A: Yes, provided your application does not have specific requirements mandating the non-compliant version. The LF variant is the preferred choice for new designs subject to RoHS regulations.

Q: Are the physical dimensions identical?

A: Yes. Both parts have the same rectangular chassis mount form factor of 0.500" x 0.220" face (12.70mm x 5.59mm) and use identical PC pin termination.

Q: Do these parts have the same packaging?

A: Yes. Both the 3252W-1-503 and 3252W-1-503LF are supplied in tube packaging.

Q: What determines whether a part can substitute for the 3252W-1-503?

A: A substitute must match all of the following: 50 kOhms resistance, 0.75W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 25-turn adjustment, top adjustment type, cermet resistive material, chassis mount configuration, PC pin termination, and identical physical dimensions within the Trimpot® 3252 sealed series.