Bourns 3386F-1-253 Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The Bourns 3386F-1-253 is a 25 kOhm, 0.5W through-hole trimmer potentiometer with PC pin termination and top adjustment. This sealed Trimpot® 3386 series component is designed for precision resistance adjustment in electronic circuits requiring compact form factor and reliable performance. The part is currently active in production. Substitute parts may be required due to inventory availability, compliance requirements, or specific application certifications.

Substiute Parts

3386F-1-253

Bourns Inc.In Stock: 9443386F-1-253 Datasheet

Current PartRFQ

3386F-1-253LF

Bourns Inc.In Stock: 27753386F-1-253LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3386F-1-253 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match identically for a part to serve as a direct substitute:

• Resistance value: 25 kOhms
• Power rating: 0.5W (1/2W)
• Tolerance: ±10%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 1
• Adjustment type: Top Adjustment
• Resistive material: Cermet
• Mounting type: Through Hole
• Termination style: PC Pins
• Physical dimensions: Square - 0.375" x 0.375" (9.53mm x 9.53mm)
• Series: Trimpot® 3386 - Sealed

The 3386F-1-253LF meets all these criteria and qualifies as a direct equivalent substitute part.

Parameter Comparison

Engineering Selection Recommendations

The 3386F-1-253LF is a direct functional equivalent to the 3386F-1-253 across all electrical and mechanical specifications. The primary distinction lies in regulatory compliance status. The 3386F-1-253LF carries ROHS3 compliance and REACH Unaffected status, whereas the 3386F-1-253 is RoHS non-compliant and REACH Affected.

Selection between these parts should be based on application regulatory requirements. Applications subject to RoHS3 or REACH restrictions must use the 3386F-1-253LF. Applications without such constraints may use either part. Both parts maintain identical electrical performance, physical dimensions, and functional characteristics.

Frequently Asked Questions (FAQ)

Q: Can the 3386F-1-253LF replace the 3386F-1-253 in existing designs?

A: Yes. The 3386F-1-253LF is electrically and mechanically identical to the 3386F-1-253. All electrical parameters, physical dimensions, and functional characteristics are equivalent. Direct substitution is possible without circuit modification.

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

A: The primary difference is regulatory compliance. The 3386F-1-253LF is ROHS3 compliant and REACH Unaffected, while the 3386F-1-253 is RoHS non-compliant and REACH Affected. All other specifications are identical.

Q: Are there any packaging differences between these parts?

A: No. Both parts are supplied in tube packaging and maintain identical physical dimensions of 0.375" x 0.375" (9.53mm x 9.53mm).

Q: Which part should I specify for new designs?

A: Specify the 3386F-1-253LF for new designs. This part offers superior regulatory compliance status while maintaining complete functional equivalence to the 3386F-1-253.

Q: Do these parts have the same adjustment characteristics?

A: Yes. Both parts feature identical top adjustment, 1-turn operation, and cermet resistive material. Adjustment feel and resolution are equivalent.