SMUB502PET Surface Mount Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The SMUB502PET is a 5 kOhms, 0.25W surface mount trimmer potentiometer manufactured by Ohmite, featuring gull wing termination and top adjustment capability. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications. The substitute part ST-4ETB502 from Nidec Components Corporation provides functional equivalence with current market availability.

Substiute Parts

SMUB502PET

OhmiteIn Stock: 987SMUB502PET Datasheet

Current PartRFQ

ST-4ETB502

Nidec Components CorporationIn Stock: 2215ST-4ETB502 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between SMUB502PET and ST-4ETB502 is valid based on the following critical parameters:

• Electrical Specifications: Identical resistance value (5 kOhms), power rating (0.25W), tolerance (±20%), and temperature coefficient (±100ppm/°C)
• Mechanical Configuration: Matching number of turns (1), adjustment type (top adjustment), and resistive material (cermet)
• Physical Form Factor: Identical mounting type (surface mount), termination style (gull wing), and package dimensions (0.197" x 0.177" face / 5.00mm x 4.50mm)
• Regulatory Compliance: Both components meet ROHS3 requirements and share identical moisture sensitivity classification (MSL 1)

Parameter Comparison

Engineering Selection Recommendations

The ST-4ETB502 from Nidec Components Corporation is the direct functional equivalent for SMUB502PET applications. Selection of ST-4ETB502 is supported by:

• Product Status: ST-4ETB502 maintains active production status, ensuring continued availability and supply chain reliability
• Regulatory Compliance: Both components satisfy ROHS3 requirements and carry identical environmental classifications
• Electrical and Mechanical Equivalence: All critical parameters—resistance, power rating, tolerance, temperature coefficient, adjustment mechanism, and physical dimensions—are identical
• Packaging Availability: ST-4ETB502 is available in Tape & Reel (TR) packaging format, suitable for automated assembly processes

Frequently Asked Questions (FAQ)

Q: Can ST-4ETB502 be used as a direct replacement for SMUB502PET in existing designs?

A: Yes. ST-4ETB502 provides complete functional equivalence across all electrical specifications, mechanical configuration, and physical dimensions. No circuit modifications are required.

Q: Are there any differences in packaging between these components?

A: SMUB502PET packaging information is not specified in the source data. ST-4ETB502 is supplied in Tape & Reel (TR) format. Confirm packaging compatibility with your assembly process requirements.

Q: Do both components meet the same environmental and regulatory standards?

A: Yes. Both SMUB502PET and ST-4ETB502 are ROHS3 compliant and classified as Moisture Sensitivity Level 1 (unlimited). Both carry identical ECCN (EAR99) and HTSUS (8533.40.8050) classifications.

Q: What is the significance of the obsolete status for SMUB502PET?

A: Obsolete status indicates that Ohmite has discontinued production of SMUB502PET. ST-4ETB502 is the recommended active alternative, ensuring long-term supply availability and support.

Q: Are the tolerance and temperature coefficient specifications identical?

A: Yes. Both components specify ±20% tolerance and ±100ppm/°C temperature coefficient, ensuring equivalent performance in temperature-sensitive applications.

Q: Can these components be used interchangeably in automated pick-and-place assembly?

A: Yes, provided that your assembly equipment is configured for the packaging format of the selected part. ST-4ETB502 is available in standard Tape & Reel format compatible with automated systems.