ST32TA102 Surface Mount Trimmer Potentiometer Equivalent & Substitute Parts

Part Overview

The ST32TA102 is a 1 kOhms, 0.125W (1/8W) surface mount trimmer potentiometer with J Lead termination and top adjustment capability. Manufactured by Vishay Beyschlag/Draloric/BC Components, this cermet-based component is classified as obsolete. Due to its discontinued status, identifying functionally equivalent substitute parts is essential for design continuity, production support, and long-term component availability in applications requiring 1 kOhms trimmer potentiometers with identical electrical and mechanical specifications.

Substiute Parts

ST32TA102

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 773ST32TA102 Datasheet

Current PartRFQ

22AR1KLFTR

TT Electronics/BIIn Stock: 4361522AR1KLFTR Datasheet

MFR RecommendedRFQ

3213X102M

TE Connectivity Passive ProductIn Stock: 8713213X102M Datasheet

MFR RecommendedRFQ

ST-32EA102

Nidec Components CorporationIn Stock: 900ST-32EA102 Datasheet

MFR RecommendedRFQ

ST-32ETA102

Nidec Components CorporationIn Stock: 3549ST-32ETA102 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ST32TA102 are qualified based on strict equivalence across the following critical parameters: resistance value (1 kOhms), power rating (0.125W), tolerance (±20%), temperature coefficient (±100ppm/°C), number of turns (1), adjustment type (top adjustment), resistive material (cermet), mounting type (surface mount), termination style (J Lead), and moisture sensitivity level (MSL 1). All identified substitutes maintain these specifications. Face dimensions are permitted to vary within the following tolerances: rectangular configurations measuring 0.138" x 0.126" (4.60mm x 3.20mm) are acceptable alternatives to the square 0.134" x 0.134" (3.40mm x 3.40mm) configuration, provided PCB layout accommodates the dimensional variance. Packaging format (bulk, tape & reel) does not affect electrical or mechanical compatibility and may be selected based on production requirements.

Parameter Comparison

Engineering Selection Recommendations

For new designs and production support, ST-32ETA102 (Nidec Components Corporation, active status, ROHS3 compliant, tape & reel packaging) is the primary substitute. This part maintains identical face dimensions to the original ST32TA102, ensuring direct PCB compatibility without layout modifications. ROHS3 compliance satisfies current regulatory requirements for restricted substance management.

ST-32EA102 (Nidec Components Corporation, active status, bulk packaging) provides an alternative with identical mechanical and electrical specifications. This option is suitable for applications where bulk packaging accommodates procurement workflows.

22AR1KLFTR (TT Electronics/BI, active status, RoHS compliant, tape & reel packaging) is functionally equivalent with a rectangular face dimension of 0.138" x 0.126" (4.60mm x 3.20mm). This part requires PCB layout verification to confirm accommodation of the dimensional variance. Active product status and RoHS compliance support long-term availability.

3213X102M (TE Connectivity Passive Product, obsolete status, ROHS3 compliant) maintains identical face dimensions but carries obsolete classification, limiting its suitability for new production despite current inventory availability.

Frequently Asked Questions (FAQ)

Q: Can ST-32ETA102 directly replace ST32TA102 without PCB modifications?

A: Yes. Both parts share identical face dimensions (0.134" x 0.134" / 3.40mm x 3.40mm), J Lead termination, and all electrical specifications (1 kOhms, 0.125W, ±20% tolerance, ±100ppm/°C temperature coefficient, 1 turn, top adjustment, cermet material, surface mount). Direct substitution is supported without PCB layout changes.

Q: What is the dimensional impact of using 22AR1KLFTR as a substitute?

A: 22AR1KLFTR has a rectangular face dimension of 0.138" x 0.126" (4.60mm x 3.20mm) compared to the square 0.134" x 0.134" (3.40mm x 3.40mm) of ST32TA102. PCB layout must be reviewed to confirm the component footprint accommodates this dimensional variance. All other specifications remain equivalent.

Q: Why is ST32TA102 classified as obsolete?

A: Obsolete classification indicates the part is no longer manufactured by the original supplier. Active substitute parts (ST-32ETA102, ST-32EA102, 22AR1KLFTR) are recommended for production continuity.

Q: Does packaging format affect electrical performance?

A: No. Bulk and tape & reel packaging formats do not affect electrical or mechanical performance. Selection is based on production requirements and procurement workflows.

Q: Are all substitute parts RoHS compliant?

A: ST-32ETA102 and 3213X102M are ROHS3 compliant. 22AR1KLFTR is RoHS compliant. ST-32EA102 does not specify RoHS status. Compliance requirements should be verified against application specifications.

Q: What is the moisture sensitivity level for all parts?

A: All parts, including ST32TA102 and all substitutes, carry MSL 1 (Unlimited) classification, indicating no moisture sensitivity constraints during storage or handling.