ST-5EP102 Equivalent & Substitute Parts

Part Overview

The ST-5EP102 is a 1 kOhms, 0.25W (1/4W) surface mount trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based component features gull wing termination, side adjustment capability, and 14-turn resolution. The part is currently active in production with 764 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the ST5 series, allowing for flexibility in procurement, inventory management, and design optimization while preserving circuit performance.

Substiute Parts

ST-5EP102

Nidec Components CorporationIn Stock: 818ST-5EP102 Datasheet

Current PartRFQ

ST-5ETW102

Nidec Components CorporationIn Stock: 13902ST-5ETW102 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ST-5EP102 is determined by strict equivalence in the following critical parameters:

• Resistance value: 1 kOhms
• Power rating: 0.25W (1/4W)
• Tolerance: ±10%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 14
• Resistive material: Cermet
• Mounting type: Surface Mount
• Termination style: Gull Wing
• Series: ST5

The ST-5ETW102 qualifies as a substitute part because it maintains identical electrical specifications and core mechanical characteristics. The primary difference is the adjustment type (top adjustment versus side adjustment) and minor dimensional variation in the face size. Both parts belong to the ST5 series and share the same termination style, mounting method, and resistive material composition.

Parameter Comparison

Engineering Selection Recommendations

Both the ST-5EP102 and ST-5ETW102 are active products from Nidec Components Corporation with identical electrical performance characteristics. Selection between these parts should be based on:

1. Adjustment mechanism requirements: The ST-5EP102 provides side adjustment access, while the ST-5ETW102 offers top adjustment access. PCB layout and accessibility constraints determine which adjustment type is appropriate for the application.

2. Physical space constraints: The ST-5ETW102 has a smaller face dimension (0.236" x 0.169" versus 0.266" x 0.236"), which may be advantageous in space-constrained designs.

3. Packaging format: The ST-5EP102 is supplied in bulk packaging, while the ST-5ETW102 is supplied in tape and reel format. Packaging selection depends on production volume and assembly process requirements.

4. Regulatory compliance: Both parts maintain REACH Unaffected status and EAR99 classification, with identical moisture sensitivity levels (MSL 1 - Unlimited).

Frequently Asked Questions (FAQ)

Q: Can ST-5ETW102 be used as a direct replacement for ST-5EP102 in all applications?

A: Electrical substitution is valid because both parts share identical resistance, power rating, tolerance, temperature coefficient, and number of turns. However, mechanical compatibility depends on adjustment type accessibility and available PCB space. The ST-5ETW102's smaller face dimension and top adjustment mechanism require verification against your specific layout constraints.

Q: What is the primary difference between these two parts?

A: The ST-5EP102 features side adjustment, while the ST-5ETW102 features top adjustment. Additionally, the ST-5ETW102 has a smaller rectangular face dimension. All electrical parameters remain identical.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts share identical REACH status (REACH Unaffected), ECCN classification (EAR99), and moisture sensitivity level (MSL 1 - Unlimited).

Q: Does packaging format affect electrical performance?

A: No. The ST-5EP102 (bulk packaging) and ST-5ETW102 (tape and reel packaging) have identical electrical specifications. Packaging format is a logistics and assembly process consideration only.

Q: Which part should be selected for new designs?

A: Selection should be based on PCB layout requirements, adjustment accessibility needs, and available space. Both parts are active products with equivalent electrical performance. Verify adjustment type and dimensional compatibility with your specific application before finalizing the design.