ST32TA201 Equivalent & Substitute Parts

Part Overview

The ST32TA201 is a 200 Ohms, 0.125W (1/8W) surface mount trimmer potentiometer with J Lead termination, top adjustment, and cermet resistive material. Manufactured by Vishay Beyschlag/Draloric/BC Components as part of the ST-32 series, this component is classified as obsolete. Due to its discontinued status, equivalent substitute parts from active manufacturers are necessary for new designs and ongoing production requirements.

Substiute Parts

ST32TA201

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1153ST32TA201 Datasheet

Current PartRFQ

22AR200LFTR

TT Electronics/BIIn Stock: 2117522AR200LFTR Datasheet

MFR RecommendedRFQ

ST-32EA201

Nidec Components CorporationIn Stock: 1115ST-32EA201 Datasheet

MFR RecommendedRFQ

ST-32ETA201

Nidec Components CorporationIn Stock: 18402ST-32ETA201 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ST32TA201 are qualified based on the following electrical and mechanical parameters:

• Resistance value: 200 Ohms (exact match required)
• Power rating: 0.125W / 1/8W (exact match required)
• Tolerance: ±20% (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Number of turns: 1 (exact match required)
• Adjustment type: Top Adjustment (exact match required)
• Resistive material: Cermet (exact match required)
• Mounting type: Surface Mount (exact match required)
• Termination style: J Lead (exact match required)
• Moisture sensitivity level: 1 (Unlimited) (exact match required)

All three substitute parts meet these criteria. Variations in physical dimensions (within the range of 0.126" to 0.138" width and 0.126" to 0.134" height) and packaging formats (Bulk or Tape & Reel) do not affect functional equivalence for this product category.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are functionally equivalent to the ST32TA201 based on electrical and mechanical parameters. Selection should be based on the following factors:

Product Status: The ST32TA201 is obsolete. All substitute parts (22AR200LFTR, ST-32EA201, ST-32ETA201) are active products with confirmed inventory availability, making them suitable for new designs and production continuity.

Regulatory Compliance: For applications requiring RoHS compliance, the 22AR200LFTR (RoHS Compliant) and ST-32ETA201 (ROHS3 Compliant) are preferred. The ST-32EA201 does not specify RoHS status. All parts maintain REACH Unaffected and EAR99 ECCN classifications.

Packaging Considerations: The 22AR200LFTR and ST-32ETA201 are supplied in Tape & Reel format, suitable for automated assembly. The ST-32EA201 is supplied in Bulk packaging. Packaging selection depends on production volume and assembly process requirements.

Physical Dimensions: The ST-32EA201 and ST-32ETA201 maintain identical dimensions to the original ST32TA201 (0.134" x 0.134" square). The 22AR200LFTR has slightly different dimensions (0.138" x 0.126" rectangular). PCB layout compatibility should be verified if space constraints are critical.

Frequently Asked Questions (FAQ)

Q: Can the 22AR200LFTR be used as a direct replacement for the ST32TA201?

A: Yes. The 22AR200LFTR meets all electrical and mechanical substitution criteria: 200 Ohms resistance, 0.125W power rating, ±20% tolerance, ±100ppm/°C temperature coefficient, 1-turn top adjustment, cermet material, surface mount J Lead termination, and MSL 1. Physical dimensions differ slightly (rectangular 0.138" x 0.126" versus square 0.134" x 0.134"), requiring PCB layout verification.

Q: What is the difference between ST-32EA201 and ST-32ETA201?

A: Both parts are manufactured by Nidec Components Corporation and are electrically identical. The primary difference is packaging: ST-32EA201 is supplied in Bulk format, while ST-32ETA201 is supplied in Tape & Reel (TR) format. ST-32ETA201 specifies ROHS3 compliance, while ST-32EA201 does not specify RoHS status. Dimensions are identical for both parts.

Q: Are there any compliance differences between the substitute parts?

A: All substitute parts maintain REACH Unaffected and EAR99 ECCN classifications. RoHS compliance differs: 22AR200LFTR is RoHS Compliant, ST-32ETA201 is ROHS3 Compliant, and ST-32EA201 does not specify RoHS status. For applications requiring RoHS compliance, use 22AR200LFTR or ST-32ETA201.

Q: Does the rectangular shape of the 22AR200LFTR affect functionality?

A: No. The rectangular shape (0.138" x 0.126") versus square shape (0.134" x 0.134") does not affect electrical performance. However, PCB footprint compatibility must be verified during design review, as the component outline differs from the original ST32TA201.

Q: Which substitute part has the best inventory availability?

A: The 22AR200LFTR has the highest inventory level at 21,079 pieces. ST-32ETA201 has 18,353 pieces, and ST-32EA201 has 1,073 pieces. Inventory levels should be confirmed with suppliers for current availability.