Bourns 3290W-1-102 Equivalent & Substitute Parts

Part Overview

The Bourns 3290W-1-102 is a 1 kOhm wirewound trimmer potentiometer rated at 1W with top adjustment and PC pin termination. This sealed Trimpot® 3290 series component is designed for through-hole mounting applications requiring precision adjustment and high power dissipation. The part is currently active in production with full RoHS3 compliance and REACH compliance status. Substitute parts may be required due to inventory constraints, application-specific performance requirements, or design optimization needs.

Substiute Parts

3290W-1-102

Bourns Inc.In Stock: 10033290W-1-102 Datasheet

Current PartRFQ

PV36X102C01B00

Bourns Inc.In Stock: 3025PV36X102C01B00 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3290W-1-102 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 1 kOhms
• Termination style: PC Pins
• Mounting type: Through Hole
• Number of turns: 25

Allowable Variation Parameters:

• Power rating: May be reduced from 1W to 0.5W if application thermal requirements permit
• Adjustment type: May differ (top vs. side adjustment) based on mechanical integration constraints
• Resistive material: May transition from wirewound to cermet based on stability and temperature coefficient requirements
• Tolerance: May be relaxed from ±5% to ±10% depending on circuit accuracy demands
• Temperature coefficient: May be relaxed from ±50ppm/°C to ±100ppm/°C based on operating environment

The PV36X102C01B00 qualifies as a substitute under these parameters with documented trade-offs in power rating, adjustment mechanism, and resistive material composition.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (3290W-1-102): Select this part for applications requiring 1W power dissipation, top-mounted adjustment access, wirewound stability, and ±5% tolerance specifications. This part maintains active production status with full regulatory compliance.

Substitute Part (PV36X102C01B00): Select this part only when the following conditions are met:

• Application power dissipation does not exceed 0.5W continuous operation
• Side-mounted adjustment mechanism is mechanically compatible with PCB layout
• Circuit tolerance budget accommodates ±10% resistance variation
• Operating temperature stability requirements permit ±100ppm/°C coefficient
• PCB footprint accommodates the larger 10.00mm x 5.00mm face dimension

Both parts maintain ROHS3 and REACH compliance. Inventory availability differs significantly (980 pcs vs. 2928 pcs), which may influence procurement decisions.

Frequently Asked Questions (FAQ)

Q: Can the PV36X102C01B00 directly replace the 3290W-1-102 in all applications?

A: No. The substitute part has lower power rating (0.5W vs. 1W), wider tolerance (±10% vs. ±5%), and different adjustment mechanism (side vs. top). Verify that your application thermal budget, tolerance requirements, and mechanical layout accommodate these differences before substitution.

Q: What is the primary difference between wirewound and cermet resistive materials?

A: Wirewound materials provide lower temperature coefficient (±50ppm/°C) and higher stability. Cermet materials have wider temperature coefficient (±100ppm/°C) but offer different frequency response characteristics. Select based on your circuit's temperature stability and frequency requirements.

Q: Does the larger physical size of the PV36X102C01B00 affect PCB layout?

A: Yes. The substitute measures 10.00mm x 5.00mm versus 9.53mm x 3.81mm for the original part. Verify that your PCB layout, component spacing, and mechanical clearances accommodate the larger footprint before design integration.

Q: Are both parts suitable for high-temperature applications?

A: The 3290W-1-102 with ±50ppm/°C coefficient is preferred for temperature-sensitive circuits. The PV36X102C01B00 with ±100ppm/°C coefficient is acceptable only if your application tolerance budget permits wider drift across the operating temperature range.

Q: What inventory considerations should influence my part selection?

A: The 3290W-1-102 has 980 pcs in stock, while the PV36X102C01B00 has 2928 pcs available. If long-term supply continuity is critical, the higher inventory level of the substitute may provide procurement advantages, provided technical requirements are satisfied.