SMUB501PET Equivalent & Substitute Parts

Part Overview

The SMUB501PET is a 500 Ohm, 0.25W surface mount trimmer potentiometer manufactured by Ohmite with gull wing termination and top adjustment capability. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance applications. The part features cermet resistive material construction with 1.0 turn adjustment and rectangular form factor (5.00mm x 4.50mm).

Substiute Parts

SMUB501PET

OhmiteIn Stock: 918SMUB501PET Datasheet

Current PartRFQ

ST-4ETB501

Nidec Components CorporationIn Stock: 9763ST-4ETB501 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMUB501PET is determined by strict equivalence across the following critical parameters:

• Resistance value: 500 Ohms
• Power rating: 0.25W (1/4W)
• Tolerance: ±20%
• Temperature coefficient: ±100ppm/°C
• Number of turns: 1.0
• Adjustment type: Top Adjustment
• Resistive material: Cermet
• Mounting type: Surface Mount
• Termination style: Gull Wing
• Physical dimensions: Rectangular - 5.00mm x 4.50mm face
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

The ST-4ETB501 manufactured by Nidec Components Corporation meets all specified electrical and mechanical parameters, establishing it as a direct equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The ST-4ETB501 is the designated substitute for the obsolete SMUB501PET. Both components are ROHS3 compliant and share identical electrical specifications and physical dimensions. The ST-4ETB501 maintains active product status with established supply availability (9683 pcs in stock), whereas the SMUB501PET is obsolete with limited remaining inventory (846 pcs). For new designs and ongoing production requiring this component specification, the ST-4ETB501 provides direct functional equivalence with superior long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can the ST-4ETB501 be used as a direct replacement for the SMUB501PET in existing designs?

A: Yes. The ST-4ETB501 is electrically and mechanically equivalent to the SMUB501PET across all specified parameters, including resistance, power rating, tolerance, temperature coefficient, adjustment type, resistive material, mounting configuration, termination style, and physical dimensions.

Q: What is the primary reason for substitution?

A: The SMUB501PET is classified as obsolete. The ST-4ETB501 is an active product with established supply channels, making it the appropriate choice for production continuity.

Q: Are there packaging differences between these parts?

A: The SMUB501PET packaging specification is not provided in the available data. The ST-4ETB501 is supplied in Tape & Reel (TR) packaging format.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SMUB501PET and ST-4ETB501 are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). The ST-4ETB501 additionally carries REACH Unaffected status.

Q: What is the base product number for the ST-4ETB501?

A: The base product number is ST4ETB, with the full part number ST-4ETB501 specifying the 500 Ohm resistance value.