ST5TP202 Equivalent & Substitute Parts

Part Overview

The ST5TP202 is a 2 kOhms, 0.25W surface mount trimmer potentiometer manufactured by Vishay Beyschlag/Draloric/BC Components. This cermet-based component features 14-turn side adjustment with gull wing termination and is designed for precision tuning applications in compact form factors. The part is currently obsolete, necessitating identification of functionally equivalent active alternatives that maintain electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	2 kOhms
Power Rating	0.25W (1/4W)
Tolerance	±10%
Temperature Coefficient	±100ppm/°C
Number of Turns	14
Adjustment Type	Side Adjustment
Resistive Material	Cermet
Mounting Type	Surface Mount
Termination Style	Gull Wing
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters: resistance value (2 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 A: Direct Electrical & Mechanical Equivalents (14-Turn) Parts ST-5EP202, ST-5ETP202, ST-5ER202, ST-5ETR202, ST-5ETX202, and ST-5EX202 maintain all critical electrical parameters and the 14-turn specification. These parts are manufactured by Nidec Components Corporation and are in active production status.

Category B: Functional Equivalent with Parameter Variance (12-Turn) Part 3269P-1-202G (Bourns Inc., Trimpot® 3269 series) maintains all electrical parameters but specifies 12 turns instead of 14. This represents a functional alternative where adjustment resolution differs while electrical performance remains equivalent.

Parameter Comparison

Part Number	Manufacturer	Resistance	Power	Tolerance	Temp Coeff	Turns	Adj Type	Material	Mount	Term Style	MSL	Status
ST5TP202	Vishay Beyschlag	2 kΩ	0.25W	±10%	±100ppm/°C	14	Side Adj	Cermet	SMD	Gull Wing	1	Obsolete
ST-5EP202	Nidec Components	2 kΩ	0.25W	±10%	±100ppm/°C	14	Side Adj	Cermet	SMD	Gull Wing	1	Active
ST-5ETP202	Nidec Components	2 kΩ	0.25W	±10%	±100ppm/°C	14	Side Adj	Cermet	SMD	Gull Wing	1	Active
ST-5ER202	Nidec Components	2 kΩ	0.25W	±10%	±100ppm/°C	14	Side Adj	Cermet	SMD	Gull Wing	1	Active
ST-5ETR202	Nidec Components	2 kΩ	0.25W	±10%	±100ppm/°C	14	Side Adj	Cermet	SMD	Gull Wing	1	Active
ST-5ETX202	Nidec Components	2 kΩ	0.25W	±10%	±100ppm/°C	14	Side Adj	Cermet	SMD	Gull Wing	1	Active
ST-5EX202	Nidec Components	2 kΩ	0.25W	±10%	±100ppm/°C	14	Side Adj	Cermet	SMD	Gull Wing	1	Active
3269P-1-202G	Bourns Inc.	2 kΩ	0.25W	±10%	±100ppm/°C	12	Side Adj	Cermet	SMD	Gull Wing	2	Active

Engineering Selection Recommendations

Primary Substitutes (Nidec ST5 Series) ST-5ETP202, ST-5ETR202, and ST-5ETX202 are recommended as primary substitutes. All three maintain complete electrical and mechanical equivalence to the ST5TP202 while offering active product status and RoHS3 compliance. Selection among these three depends on packaging requirements: ST-5ETP202 and ST-5ETR202 are supplied in Tape & Reel format suitable for automated assembly, while ST-5EX202 is available in bulk packaging.

Secondary Substitutes (Nidec ST5 Series) ST-5EP202 and ST-5ER202 provide equivalent electrical performance with identical turn count and are in active production. These parts differ only in packaging format (bulk) and represent cost-effective alternatives where tape & reel packaging is not required.

Alternative Substitute (Bourns 3269P Series) The 3269P-1-202G offers electrical equivalence but specifies 12 turns versus the original 14-turn specification. This part is suitable for applications where adjustment resolution is not a critical design parameter. Note that this part carries MSL 2 rating (1-year shelf life) compared to MSL 1 for all other substitutes, and is RoHS non-compliant with REACH affected status.

Frequently Asked Questions (FAQ)

Q: Can ST-5ETP202 be used as a direct replacement for ST5TP202? A: Yes. ST-5ETP202 maintains identical electrical specifications (2 kOhms, 0.25W, ±10% tolerance, ±100ppm/°C), 14-turn adjustment, cermet resistive material, and gull wing surface mount termination. The part is in active production with RoHS3 compliance.

Q: What is the difference between ST-5ETP202, ST-5ETR202, and ST-5ETX202? A: All three parts are electrically and mechanically identical. The differences are packaging format and physical dimensions. ST-5ETP202 and ST-5ETR202 are supplied in Tape & Reel format. ST-5ETX202 maintains the original 6.00mm x 4.30mm face dimension, while ST-5ETP202 and ST-5ETR202 have 6.75mm x 6.00mm dimensions.

Q: Why does 3269P-1-202G specify 12 turns instead of 14? A: The 3269P-1-202G is from the Bourns Trimpot® 3269 series, which uses a different mechanical design. While electrical performance is equivalent, the 12-turn specification reflects the design of this alternative product line. This part is suitable only if adjustment resolution is not a critical requirement.

Q: What packaging options are available? A: Nidec ST5 series substitutes are available in Tape & Reel (TR) format (ST-5ETP202, ST-5ETR202, ST-5ETX202) and bulk packaging (ST-5EP202, ST-5ER202, ST-5EX202). The Bourns 3269P-1-202G is supplied in Tape & Reel format.

Q: Are there RoHS compliance differences among substitutes? A: Yes. Nidec ST5 series parts (ST-5ETP202, ST-5ER202, ST-5ETR202, ST-5ETX202, ST-5EX202) are RoHS3 compliant. The original ST5TP202 and Bourns 3269P-1-202G are RoHS non-compliant. For applications requiring RoHS compliance, select from the Nidec ST5 active series.

Q: What is the MSL rating significance? A: MSL 1 (unlimited shelf life) applies to all Nidec substitutes and the original part. The Bourns 3269P-1-202G carries MSL 2 (1-year shelf life), requiring controlled storage conditions and limiting shelf availability.

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