Bourns 3329S-1-503 Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3329S-1-503 is a 50 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination, designed for side adjustment applications. This sealed Trimpot® 3329 series component features cermet resistive material and is currently in active production status. Alternative part numbers may be required due to packaging specifications, compliance requirements, or inventory availability in specific distribution channels.

Substiute Parts

3329S-1-503

Bourns Inc.In Stock: 7853329S-1-503 Datasheet

Current PartRFQ

3329S-1-503LF

Bourns Inc.In Stock: 13363329S-1-503LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3329S-1-503LF is a direct functional equivalent to the 3329S-1-503. Both parts share identical electrical specifications: 50 kOhm resistance, 0.5W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 1-turn side adjustment, cermet construction, through-hole mounting, and PC pin termination. Physical dimensions are identical. The primary distinction between these parts is packaging format and RoHS compliance status. The substitution is valid based on matching all critical electrical and mechanical parameters that define trimmer potentiometer functionality and circuit board compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the 3329S-1-503 and 3329S-1-503LF are functionally equivalent for circuit applications requiring a 50 kOhm, 0.5W through-hole trimmer potentiometer with side adjustment. Selection between these parts should be based on regulatory compliance requirements and packaging specifications. The 3329S-1-503LF offers ROHS3 compliance, making it suitable for applications subject to RoHS directives. The 3329S-1-503 is appropriate for applications without RoHS compliance mandates. Packaging format differs: the 3329S-1-503LF is supplied in tube packaging, while the 3329S-1-503 uses standard packaging. Both parts maintain identical electrical performance, mechanical fit, and board-level compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 3329S-1-503LF replace the 3329S-1-503 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The 3329S-1-503LF is a direct substitute with the same resistance value, power rating, tolerance, temperature coefficient, adjustment mechanism, and physical dimensions. Packaging and RoHS compliance differ but do not affect functional compatibility.

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

A: The primary differences are RoHS compliance status and packaging format. The 3329S-1-503LF is ROHS3 compliant and supplied in tube packaging. The 3329S-1-503 is RoHS non-compliant and uses standard packaging. All electrical and mechanical specifications are identical.

Q: Which part should I select for a new design?

A: If your application or market requires RoHS compliance, select the 3329S-1-503LF. If RoHS compliance is not a requirement, either part is acceptable. Verify packaging requirements with your procurement process, as the 3329S-1-503LF is supplied in tube format.

Q: Are there any performance differences between these parts?

A: No. Both parts deliver identical electrical performance: 50 kOhm resistance, 0.5W power handling, ±10% tolerance, and ±100ppm/°C temperature coefficient. Functional behavior in circuit applications is equivalent.

Q: Can I mix these parts in the same production batch?

A: Both parts are functionally interchangeable and can be used in the same circuit design. However, verify that your procurement and quality processes accommodate the different part numbers and packaging formats if mixing is required.