ST5TP102 Equivalent & Substitute Parts

Part Overview

The ST5TP102 is a 1 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, identifying functionally equivalent active alternatives is essential for design continuity and procurement reliability.

Substiute Parts

ST5TP102

Vishay Beyschlag/Draloric/BC ComponentsIn Stock: 921ST5TP102 Datasheet

Current PartRFQ

ST-5ETP102

Nidec Components CorporationIn Stock: 1222ST-5ETP102 Datasheet

DirectRFQ

3269P-1-102G

Bourns Inc.In Stock: 7513269P-1-102G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ST5TP102 is determined by strict equivalence across the following critical parameters:

• Resistance value: 1 kOhms
• Power rating: 0.25W (1/4W)
• Tolerance: ±10%
• Temperature coefficient: ±100ppm/°C
• Adjustment type: Side Adjustment
• Resistive material: Cermet
• Mounting type: Surface Mount
• Termination style: Gull Wing

Two substitute parts meet these core electrical and mechanical criteria. The ST-5ETP102 is a direct functional equivalent with identical electrical specifications and active product status. The 3269P-1-102G is a manufacturer-recommended alternative that maintains electrical equivalence but differs in turn count (12 vs. 14 turns) and physical dimensions, requiring mechanical validation for PCB layout compatibility.

Parameter Comparison

Engineering Selection Recommendations

ST-5ETP102 is the primary substitute for new designs and obsolescence mitigation. This part maintains identical electrical specifications and turn count (14 turns) as the ST5TP102, ensuring functional equivalence without design modification. The part is active and in stock, with ROHS3 compliance and unlimited MSL rating, making it suitable for standard manufacturing environments. Physical dimensions differ slightly (6.75mm x 6.00mm vs. 6.00mm x 4.30mm), requiring PCB layout verification to confirm footprint compatibility.

3269P-1-102G is a manufacturer-recommended alternative when ST-5ETP102 availability is constrained. This Bourns part maintains electrical equivalence but operates with 12 turns instead of 14, resulting in coarser adjustment resolution. Physical dimensions (6.35mm x 4.32mm) are closer to the original but still require layout validation. MSL rating of 2 (1 Year) and REACH-affected status impose additional storage and compliance considerations compared to the primary substitute.

Frequently Asked Questions (FAQ)

Q: Can ST-5ETP102 be used as a direct replacement for ST5TP102?

A: Yes, electrically and functionally. The ST-5ETP102 maintains identical resistance, power rating, tolerance, temperature coefficient, and turn count. PCB layout must be verified due to dimensional differences (6.75mm x 6.00mm vs. 6.00mm x 4.30mm).

Q: What is the impact of using 3269P-1-102G with 12 turns instead of 14?

A: The 12-turn design provides coarser adjustment granularity. Each turn covers a larger resistance range, reducing fine-tuning capability. This is acceptable only if application tolerance permits reduced adjustment resolution.

Q: Are there compliance differences between substitutes?

A: Yes. ST-5ETP102 is ROHS3 compliant with unlimited MSL, while 3269P-1-102G is RoHS non-compliant with MSL 2 (1 Year) and REACH-affected status. Compliance requirements must be evaluated against end-product specifications.

Q: Do physical dimension differences affect PCB design?

A: Yes. All three parts have different footprints. ST-5ETP102 (6.75mm x 6.00mm) and 3269P-1-102G (6.35mm x 4.32mm) require PCB layout validation to confirm clearance and mounting compatibility with the original 6.00mm x 4.30mm design.

Q: Which substitute should be selected for new production?

A: ST-5ETP102 is the preferred choice due to active status, identical turn count, ROHS3 compliance, and unlimited MSL rating. 3269P-1-102G is a secondary option when primary availability is limited, contingent on acceptance of reduced adjustment resolution and compliance implications.