Bourns 3339H-1-502 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The Bourns 3339H-1-502 is a 5 kOhm, 0.5W through-hole trimmer potentiometer with cermet resistive material, designed for PC pin termination and top adjustment. This sealed Trimpot® 3339 series component is currently active in production. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and compliance requirements across different manufacturing and distribution channels.

Substiute Parts

3339H-1-502

Bourns Inc.In Stock: 11343339H-1-502 Datasheet

Current PartRFQ

3339H-1-502LF

Bourns Inc.In Stock: 8273339H-1-502LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3339H-1-502 is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish valid substitutes:

• Identical resistance value: 5 kOhms
• Identical power rating: 0.5W (1/2W)
• Identical tolerance: ±10%
• Identical temperature coefficient: ±100ppm/°C
• Identical number of turns: 4
• Identical adjustment type: Top Adjustment
• Identical resistive material: Cermet
• Identical mounting type: Through Hole
• Identical termination style: PC Pins
• Identical physical dimensions: Round - 0.300" Dia (7.62mm)
• Same series: Trimpot® 3339 - Sealed
• Identical MSL rating: 1 (Unlimited)

The 3339H-1-502LF meets all substitution criteria and is classified as a direct equivalent part.

Parameter Comparison

Engineering Selection Recommendations

Both the 3339H-1-502 and 3339H-1-502LF are active production parts manufactured by Bourns Inc. with identical electrical and mechanical specifications. The primary distinction is regulatory compliance status.

The 3339H-1-502LF carries ROHS3 compliance, making it the preferred selection for applications subject to RoHS Directive 2011/65/EU requirements. The 3339H-1-502 is RoHS non-compliant and should be selected only when RoHS compliance is not a design or procurement requirement.

Both parts maintain REACH Affected status and EAR99 export classification. Selection between these parts should be based on the specific compliance requirements of the end application and target markets.

Frequently Asked Questions (FAQ)

Q: Can the 3339H-1-502LF be used as a direct replacement for the 3339H-1-502?

A: Yes. The 3339H-1-502LF is electrically and mechanically identical to the 3339H-1-502. Both parts share the same resistance value, power rating, tolerance, temperature coefficient, number of turns, adjustment type, resistive material, mounting configuration, termination style, and physical dimensions. Selection between them depends on RoHS compliance requirements.

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

A: The 3339H-1-502LF is ROHS3 compliant, while the 3339H-1-502 is RoHS non-compliant. All other electrical and mechanical parameters are identical.

Q: Are there any packaging differences between these parts?

A: Both parts are supplied in tube packaging. No packaging format differences exist between the two part numbers.

Q: Which part should I specify for new designs?

A: For new designs, specify the 3339H-1-502LF to ensure compliance with current RoHS regulations. The 3339H-1-502 may be used only in applications where RoHS compliance is not required.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. The identical physical dimensions (Round - 0.300" Dia / 7.62mm), through-hole mounting type, and PC pin termination style ensure mechanical and electrical interchangeability on the same printed circuit board layout.

Q: What is the MSL rating for these parts?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.