Bourns 3339W-1-101 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The Bourns 3339W-1-101 is a sealed Trimpot® 3339 series trimmer potentiometer rated at 100 Ohms, 0.5W with PC pin termination and side adjustment. This through-hole component is designed for applications requiring precision variable resistance in compact rectangular form factors. The part is currently active in production. Substitute parts may be required due to RoHS compliance requirements, inventory availability, or specific application certifications.

Substiute Parts

3339W-1-101

Bourns Inc.In Stock: 7973339W-1-101 Datasheet

Current PartRFQ

3339W-1-101LF

Bourns Inc.In Stock: 10513339W-1-101LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3339W-1-101LF is a direct substitute for the 3339W-1-101 based on identical electrical and mechanical parameters. Substitution is valid when the following criteria are met:

• Resistance value: 100 Ohms (exact match)
• Power rating: 0.5W / 1/2W (exact match)
• Tolerance: ±10% (exact match)
• Temperature coefficient: ±100ppm/°C (exact match)
• Number of turns: 4 (exact match)
• Adjustment type: Side Adjustment (exact match)
• Resistive material: Cermet (exact match)
• Mounting type: Through Hole (exact match)
• Termination style: PC Pins (exact match)
• Physical dimensions: Rectangular - 0.375" x 0.320" Face (exact match)
• Series: Trimpot® 3339 - Sealed (exact match)

The primary distinction between these parts is RoHS compliance status and inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The 3339W-1-101LF is functionally equivalent to the 3339W-1-101 across all electrical and mechanical specifications. Selection between these parts should be based on compliance requirements:

• Use 3339W-1-101LF for applications requiring ROHS3 compliance
• Use 3339W-1-101 where RoHS compliance is not mandated
• Both parts maintain identical performance characteristics, physical form factor, and reliability ratings
• Inventory availability may influence selection; 3339W-1-101LF currently has higher stock levels (1035 Pcs vs 707 Pcs)

Frequently Asked Questions (FAQ)

Q: Are the 3339W-1-101 and 3339W-1-101LF electrically identical?

A: Yes. Both parts have identical resistance (100 Ohms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), and all other electrical specifications.

Q: What is the difference between these two parts?

A: The primary difference is RoHS compliance status. The 3339W-1-101LF is ROHS3 compliant, while the 3339W-1-101 is RoHS non-compliant. All other specifications, including physical dimensions and performance characteristics, are identical.

Q: Can I use 3339W-1-101LF as a direct replacement for 3339W-1-101?

A: Yes, the 3339W-1-101LF is a direct substitute. It has identical electrical performance, mechanical form factor, and mounting characteristics. No circuit modifications or PCB redesign is required.

Q: Do these parts have the same physical dimensions?

A: Yes. Both parts are rectangular with a 0.375" x 0.320" face (9.53mm x 8.13mm) and use identical PC pin through-hole termination.

Q: Are there any environmental or regulatory differences?

A: Both parts are REACH Affected and classified as EAR99 for export control purposes. The key regulatory difference is ROHS3 compliance, which applies only to the 3339W-1-101LF variant.