Bourns 3266X-1-101 Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The Bourns 3266X-1-101 is a sealed Trimpot® 3266 series trimmer potentiometer rated at 100 Ohms, 0.25W (1/4W) with PC pin termination and side adjustment. This through-hole component is designed for applications requiring precision resistance adjustment 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

3266X-1-101

Bourns Inc.In Stock: 10553266X-1-101 Datasheet

Current PartRFQ

3266X-1-101LF

Bourns Inc.In Stock: 23423266X-1-101LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3266X-1-101LF is a direct substitute for the 3266X-1-101 based on identical electrical and mechanical parameters. Substitution is valid because both parts share:

• Identical resistance value: 100 Ohms
• Identical power rating: 0.25W (1/4W)
• Identical tolerance: ±10%
• Identical temperature coefficient: ±100ppm/°C
• Identical number of turns: 12
• Identical adjustment type: Side Adjustment
• Identical resistive material: Cermet
• Identical mounting type: Through Hole
• Identical termination style: PC Pins
• Identical physical dimensions: Rectangular - 0.250" x 0.170" Face (6.35mm x 4.32mm)
• Identical series classification: Trimpot® 3266 - Sealed

The primary difference is RoHS compliance status: the 3266X-1-101LF is ROHS3 compliant, while the 3266X-1-101 is RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

Both the 3266X-1-101 and 3266X-1-101LF are active production parts from Bourns Inc. with identical electrical and mechanical specifications. Selection between these parts should be based on regulatory compliance requirements:

• Use 3266X-1-101LF for applications requiring ROHS3 compliance
• Use 3266X-1-101 where RoHS compliance is not mandated

Both parts are subject to REACH regulations. Inventory availability may also influence selection, with the 3266X-1-101LF currently showing higher stock levels (2300 pcs vs. 998 pcs).

Frequently Asked Questions (FAQ)

Q: Are the 3266X-1-101 and 3266X-1-101LF electrically identical?

A: Yes. Both parts have identical resistance (100 Ohms), power rating (0.25W), tolerance (±10%), temperature coefficient (±100ppm/°C), and all other electrical parameters.

Q: Can I use the 3266X-1-101LF as a direct replacement for the 3266X-1-101?

A: Yes, the 3266X-1-101LF is a direct substitute. All electrical, mechanical, and dimensional specifications are identical. The primary difference is RoHS compliance status.

Q: What is the significance of the "LF" suffix in the 3266X-1-101LF part number?

A: The "LF" suffix indicates lead-free construction and ROHS3 compliance. This designation reflects the manufacturing process and material composition used to meet RoHS regulations.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts have identical rectangular dimensions of 0.250" x 0.170" face (6.35mm x 4.32mm) and use the same through-hole PC pin termination.

Q: Which part should I specify for new designs?

A: For new designs, specify the 3266X-1-101LF to ensure ROHS3 compliance and future regulatory alignment. Both parts are active in production.

Q: Do these parts have different adjustment characteristics?

A: No. Both parts feature identical 12-turn side adjustment with cermet resistive material and ±100ppm/°C temperature coefficient.