ST5TP502 Equivalent & Substitute Parts

Part Overview

The ST5TP502 is a 5 kOhm, 0.25W surface mount trimmer potentiometer with cermet resistive material, 14-turn side adjustment, and gull wing termination. Manufactured by Vishay Beyschlag/Draloric/BC Components, this part is classified as obsolete. Due to its discontinued status, equivalent substitute parts from active manufacturers are necessary to maintain design continuity and ensure long-term component availability for production and repair applications.

Substiute Parts

ST5TP502

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 1141ST5TP502 Datasheet

Current PartRFQ

ST-5ETP502

Nidec Components CorporationIn Stock: 1286ST-5ETP502 Datasheet

DirectRFQ

3269P-1-502G

Bourns Inc.In Stock: 7403269P-1-502G Datasheet

MFR RecommendedRFQ

ST-5EP502

Nidec Components CorporationIn Stock: 957ST-5EP502 Datasheet

MFR RecommendedRFQ

ST-5ER502

Nidec Components CorporationIn Stock: 762ST-5ER502 Datasheet

MFR RecommendedRFQ

ST-5ETR502

Nidec Components CorporationIn Stock: 937ST-5ETR502 Datasheet

MFR RecommendedRFQ

ST-5ETX502

Nidec Components CorporationIn Stock: 2067ST-5ETX502 Datasheet

MFR RecommendedRFQ

ST-5EX502

Nidec Components CorporationIn Stock: 1081ST-5EX502 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ST5TP502 is determined by strict equivalence across the following critical parameters: resistance value (5 kOhms), power rating (0.25W), tolerance (±10%), temperature coefficient (±100ppm/°C), adjustment type (side adjustment), resistive material (cermet), mounting type (surface mount), and termination style (gull wing).

The substitute parts are grouped into two categories:

Category 1: Full Electrical and Mechanical Equivalents — Parts that maintain all critical parameters including the 14-turn specification and identical or compatible footprint dimensions. These parts are direct replacements with no design modifications required.

Category 2: Functional Equivalents with Minor Dimensional Variation — Parts that maintain all electrical parameters but may have different turn counts (12 turns) or slightly different face dimensions. These require verification of mechanical fit within the application.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs and Replacements)

ST-5ETX502 and ST-5EX502 are the preferred substitutes. Both maintain identical face dimensions (0.236" x 0.169" / 6.00mm x 4.30mm) to the original ST5TP502, ensuring direct mechanical compatibility without PCB layout modifications. Both are manufactured by Nidec Components Corporation with active product status and ROHS3 compliance. ST-5ETX502 is available in Tape & Reel packaging, while ST-5EX502 is supplied in bulk packaging.

Secondary Substitutes (Acceptable with Mechanical Verification)

ST-5ETP502, ST-5EP502, and ST-5ER502 maintain full electrical equivalence and 14-turn specification but have larger face dimensions (0.266" x 0.236" / 6.75mm x 6.00mm). These parts are suitable for applications where PCB space permits the increased footprint. All three are active products from Nidec Components Corporation with ROHS3 compliance. Packaging options include Tape & Reel (ST-5ETP502) and bulk (ST-5EP502, ST-5ER502).

Alternative Substitute (Turn Count Variation)

3269P-1-502G from Bourns Inc. maintains electrical parameters but specifies 12 turns instead of 14. This part is suitable only for applications where turn count is not a critical specification. The face dimension (0.250" x 0.170" / 6.35mm x 4.32mm) is compatible with the original footprint. This part has active product status but is RoHS non-compliant and carries MSL 2 rating.

Frequently Asked Questions (FAQ)

Q: Can ST-5ETX502 or ST-5EX502 be used as direct replacements for ST5TP502 without PCB modifications?

A: Yes. Both parts maintain identical face dimensions (0.236" x 0.169" / 6.00mm x 4.30mm) and all electrical parameters. No PCB layout changes are required.

Q: What is the difference between ST-5ETP502, ST-5EP502, and ST-5ER502?

A: These three parts are electrically and mechanically identical. The differences are in packaging format: ST-5ETP502 is supplied in Tape & Reel, while ST-5EP502 and ST-5ER502 are supplied in bulk. All maintain 14-turn specification and larger dimensions (0.266" x 0.236" / 6.75mm x 6.00mm).

Q: Why does 3269P-1-502G have a different turn count (12 vs. 14)?

A: The 3269P-1-502G is from the Bourns Trimpot 3269 series and specifies 12 turns. While electrically equivalent in resistance, tolerance, and power rating, the reduced turn count affects adjustment resolution. This part is suitable only for applications where turn count is not a critical design parameter.

Q: Are all substitute parts RoHS compliant?

A: Most substitutes are ROHS3 compliant (ST-5ETX502, ST-5EX502, ST-5ETP502, ST-5EP502, ST-5ER502, ST-5ETR502). The 3269P-1-502G from Bourns is RoHS non-compliant. The original ST5TP502 is also RoHS non-compliant.

Q: What is the difference between Tape & Reel and bulk packaging?

A: Tape & Reel packaging is suitable for automated assembly processes. Bulk packaging is used for manual assembly or lower-volume applications. Electrical and mechanical specifications remain identical regardless of packaging format.

Q: Does MSL rating affect substitution suitability?

A: MSL 1 (Unlimited) indicates the part has unlimited shelf life and no moisture sensitivity restrictions. MSL 2 (1 Year) requires controlled storage conditions. The 3269P-1-502G carries MSL 2 rating, requiring adherence to moisture control protocols during storage and handling.