ST5TP104 Equivalent & Substitute Parts

Part Overview

The ST5TP104 is a 100 kOhms, 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 for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Resistance	100 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
Face Dimension	0.236" x 0.169" (6.00mm x 4.30mm)
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

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

Resistance value: 100 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
Moisture sensitivity level: 1 (Unlimited)

Parts are grouped into two categories: direct equivalents (matching all parameters including face dimensions) and functional equivalents (matching electrical and mechanical specifications with minor dimensional variations).

Parameter Comparison

Part Number	Manufacturer	Resistance	Power	Turns	Face Dimension	Product Status	RoHS Status	Packaging	Inventory
ST5TP104	Vishay Beyschlag/Draloric/BC Components	100 kOhms	0.25W	14	0.236" x 0.169" (6.00mm x 4.30mm)	Obsolete	Non-compliant	—	1076 Pcs
ST-5ETP104	Nidec Components Corporation	100 kOhms	0.25W	14	0.266" x 0.236" (6.75mm x 6.00mm)	Active	RoHS3 Compliant	Tape & Reel	2071 Pcs
ST-5ETR104	Nidec Components Corporation	100 kOhms	0.25W	14	0.266" x 0.236" (6.75mm x 6.00mm)	Active	RoHS3 Compliant	Tape & Reel	849 Pcs
ST-5ETX104	Nidec Components Corporation	100 kOhms	0.25W	14	0.236" x 0.169" (6.00mm x 4.30mm)	Active	RoHS3 Compliant	Tape & Reel	1137 Pcs
ST-5EX104	Nidec Components Corporation	100 kOhms	0.25W	14	0.236" x 0.169" (6.00mm x 4.30mm)	Active	Non-compliant	Bulk	961 Pcs
ST-5EP104	Nidec Components Corporation	100 kOhms	0.25W	14	0.266" x 0.236" (6.75mm x 6.00mm)	Active	Non-compliant	Bulk	1056 Pcs
ST-5ER104	Nidec Components Corporation	100 kOhms	0.25W	14	0.266" x 0.236" (6.75mm x 6.00mm)	Active	RoHS3 Compliant	Bulk	1059 Pcs
3269P-1-104G	Bourns Inc.	100 kOhms	0.25W	12	0.250" x 0.170" (6.35mm x 4.32mm)	Active	Non-compliant	Tape & Reel	686 Pcs

Engineering Selection Recommendations

Direct Equivalents (Identical Face Dimensions):

ST-5ETX104 and ST-5EX104 maintain the original 0.236" x 0.169" (6.00mm x 4.30mm) face dimension. ST-5ETX104 is RoHS3 compliant and supplied in Tape & Reel packaging, making it the preferred choice for new designs requiring regulatory compliance. ST-5EX104 is available in bulk packaging and does not carry RoHS3 compliance.

Functional Equivalents (Larger Face Dimension):

ST-5ETP104, ST-5ETR104, ST-5EP104, and ST-5ER104 feature a larger 0.266" x 0.236" (6.75mm x 6.00mm) face dimension while maintaining all electrical specifications. These parts are suitable for applications where PCB layout accommodates the increased footprint. ST-5ETP104 and ST-5ETR104 are RoHS3 compliant; ST-5EP104 and ST-5ER104 are not.

Alternative from Different Manufacturer:

The 3269P-1-104G (Bourns Trimpot® 3269 - Sealed) differs in turn count (12 turns versus 14 turns) and face dimension (0.250" x 0.170"). This part is suitable only when the 12-turn adjustment range is acceptable for the application.

For new production, prioritize active parts with RoHS3 compliance and appropriate packaging (Tape & Reel for automated assembly, Bulk for manual placement).

Frequently Asked Questions (FAQ)

Q: Can ST-5ETP104 replace ST5TP104 directly on the PCB?

A: ST-5ETP104 is electrically equivalent but has a larger face dimension (0.266" x 0.236" versus 0.236" x 0.169"). PCB layout must accommodate the increased footprint. If space is constrained, use ST-5ETX104 instead.

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

A: Tape & Reel packaging is suitable for automated pick-and-place assembly. Bulk packaging is used for manual placement or lower-volume applications. Both contain the same component.

Q: Why does 3269P-1-104G have 12 turns instead of 14?

A: The Bourns 3269P series uses a different mechanical design with 12-turn adjustment. This affects resolution and adjustment range. Use only if the application specifications permit 12-turn operation.

Q: Is RoHS3 compliance required for my application?

A: RoHS3 compliance is mandatory for products sold in the European Union and many other markets. For new designs, select RoHS3-compliant parts: ST-5ETP104, ST-5ETR104, ST-5ETX104, or ST-5ER104.

Q: Which substitute offers the best availability?

A: ST-5ETP104 has the highest inventory (2071 Pcs), followed by ST-5ETX104 (1137 Pcs) and ST-5ETR104 (849 Pcs).

Q: Can I use ST-5EX104 in a new design?

A: ST-5EX104 is functionally equivalent but lacks RoHS3 compliance. It is suitable only for legacy product support or applications where RoHS compliance is not required.

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