ST-5EP203 Equivalent & Substitute Parts

Part Overview

The ST-5EP203 is a 20 kOhms, 0.25W (1/4W) surface mount trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based component features gull wing termination and side adjustment capability with 14 turns of resolution. The part is classified as Active status with unlimited moisture sensitivity rating (MSL 1). The ST-5EP203 is supplied in Bulk packaging. Substitute parts are identified when packaging format changes are required or when alternative inventory sources are needed while maintaining identical electrical and mechanical specifications.

Substiute Parts

ST-5EP203

Nidec Components CorporationIn Stock: 956ST-5EP203 Datasheet

Current PartRFQ

ST-5ETP203

Nidec Components CorporationIn Stock: 1436ST-5ETP203 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ST-5EP203 is determined by equivalence across all critical electrical and mechanical parameters: resistance value (20 kOhms), power rating (0.25W), 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), and physical dimensions (0.266" x 0.236" face). The primary variable between the main part and substitute is packaging format. The ST-5EP203 is supplied in Bulk packaging, while the ST-5ETP203 is supplied in Tape & Reel (TR) format. Both parts belong to the ST5 series and maintain identical functional specifications. Substitution is valid when packaging requirements permit the alternative format.

Parameter Comparison

Engineering Selection Recommendations

Both the ST-5EP203 and ST-5ETP203 are Active status components with identical electrical and mechanical specifications. Selection between these parts is determined by packaging requirements and assembly process compatibility. The ST-5EP203 in Bulk packaging is suitable for manual assembly or low-volume applications. The ST-5ETP203 in Tape & Reel format is optimized for automated pick-and-place assembly processes. Both parts maintain REACH Unaffected status and EAR99 export classification. RoHS3 compliance is confirmed for the ST-5ETP203 substitute. Component selection should be based on manufacturing process requirements and supply chain availability rather than functional performance, as electrical and mechanical parameters are equivalent.

Frequently Asked Questions (FAQ)

Q: Can ST-5ETP203 replace ST-5EP203 in my circuit design? A: Yes. Both parts are electrically and mechanically identical with 20 kOhms resistance, 0.25W power rating, ±10% tolerance, ±100ppm/°C temperature coefficient, 14-turn adjustment, cermet material, gull wing termination, and identical physical dimensions. Substitution is valid from a functional standpoint.

Q: What is the difference between these two part numbers? A: The primary difference is packaging format. ST-5EP203 is supplied in Bulk packaging, while ST-5ETP203 is supplied in Tape & Reel (TR) format. All electrical and mechanical specifications are identical.

Q: Which part should I use for automated assembly? A: The ST-5ETP203 in Tape & Reel format is designed for automated pick-and-place assembly processes. The ST-5EP203 in Bulk packaging is suitable for manual assembly or lower-volume applications.

Q: Are there any compliance differences between these parts? A: Both parts maintain REACH Unaffected status and EAR99 export classification. The ST-5ETP203 is confirmed RoHS3 compliant. Both parts have unlimited moisture sensitivity rating (MSL 1).

Q: Can I use ST-5EP203 if ST-5ETP203 is out of stock? A: Yes, provided your assembly process can accommodate Bulk packaging format. The electrical and mechanical performance is identical, making this a valid substitution from a functional perspective.