Equivalent & Substitute Parts for 1211P201

Part Overview

The 1211P201 is a 200 Ohm, 0.75W wirewound trimmer potentiometer manufactured by Nidec Components Corporation. This chassis mount component features PC pin termination with side adjustment capability and 22 turns of adjustment resolution. The product is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and component procurement.

Substiute Parts

1211P201

Nidec Components CorporationIn Stock: 9371211P201 Datasheet

Current PartRFQ

3057Y-1-201

Bourns Inc.In Stock: 7913057Y-1-201 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 1211P201 is based on matching the following critical electrical and mechanical parameters:

• Resistance value: 200 Ohms (exact match required)
• Tolerance: ±5% (matching specification)
• Temperature coefficient: ±50ppm/°C (matching specification)
• Number of turns: 22 (matching adjustment resolution)
• Adjustment type: Side Adjustment (functional requirement)
• Resistive material: Wirewound (performance characteristic)
• Mounting type: Chassis Mount (mechanical requirement)
• Termination style: PC Pins (circuit board interface)

The substitute part 3057Y-1-201 meets all these criteria. The primary difference is an increased power rating (1W versus 0.75W), which represents an enhancement rather than a limitation for substitution purposes.

Parameter Comparison

Engineering Selection Recommendations

The 3057Y-1-201 (Bourns Trimpot® 3057 - Sealed) is a direct functional equivalent to the 1211P201. Both components share identical electrical specifications for resistance, tolerance, temperature coefficient, and adjustment characteristics. The substitute part carries an active product status with confirmed current availability, whereas the original part is obsolete.

The increased power rating of the 3057Y-1-201 (1W versus 0.75W) provides additional thermal margin and does not create any compatibility issues in applications designed for the original 0.75W specification. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity ratings, ensuring regulatory and environmental consistency.

The face dimensions of the substitute are marginally smaller (0.315" x 0.190" versus 0.323" x 0.276"), which may require mechanical layout verification in space-constrained applications but does not affect electrical performance or PC pin interface compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 3057Y-1-201 be used as a direct replacement for the 1211P201?

A: Yes. The 3057Y-1-201 matches all critical electrical parameters: 200 Ohm resistance, ±5% tolerance, ±50ppm/°C temperature coefficient, 22-turn adjustment, side adjustment type, wirewound construction, chassis mount configuration, and PC pin termination. The higher power rating (1W) is not a limitation for applications originally specified at 0.75W.

Q: Are there any mechanical compatibility concerns?

A: The substitute part has a slightly smaller face dimension (0.315" x 0.190" versus 0.323" x 0.276"). Verify that the reduced footprint does not conflict with existing mechanical mounting or panel cutout specifications in your application.

Q: What is the difference in product status between these parts?

A: The 1211P201 is classified as obsolete and no longer manufactured by Nidec. The 3057Y-1-201 is an active product with current manufacturing and availability. This makes the Bourns part the appropriate choice for new procurement and long-term supply chain continuity.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the 1211P201 and 3057Y-1-201 are ROHS3 compliant with MSL rating 1 (unlimited moisture sensitivity). Both carry ECCN classification EAR99 and HTSUS code 8533.31.0000.

Q: What packaging is available for the substitute part?

A: The 3057Y-1-201 is supplied in tube packaging. Confirm that this packaging format is compatible with your receiving, storage, and assembly processes.