Bourns 91A1A-B28-B13 5K Ohm 1W Linear Panel Mount Potentiometer - Equivalent & Substitute Parts

Part Overview

The Bourns 91A1A-B28-B13 is a 5k Ohm, 1 Watt linear panel mount potentiometer with conductive plastic resistive material and PC pin termination. This component is classified as obsolete, making identification of suitable substitutes necessary for ongoing production and maintenance applications. The part features a slotted actuator, 300° rotation, and side adjustment capability, designed for applications requiring precise linear resistance control in a compact rectangular form factor.

Substiute Parts

91A1A-B28-B13

Bourns Inc.In Stock: 79391A1A-B28-B13 Datasheet

Current PartRFQ

91A1A-B28-B13L

Bourns Inc.In Stock: 126191A1A-B28-B13L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 91A1A-B28-B13 is determined by strict equivalence across the following critical parameters:

• Resistance value: 5k Ohm
• Power rating: 1W
• Taper characteristic: Linear
• Number of gangs: 1
• Number of turns: 1.0
• Resistive material: Conductive Plastic
• Termination style: PC Pins
• Mounting configuration: Panel Mount
• Mechanical specifications: Bushing thread 3/8-32, 300° rotation, side adjustment
• Physical envelope: Rectangular body 0.687" x 0.625" face
• Actuator specifications: Slotted type, 0.875" length, 0.250" diameter

The substitute part 91A1A-B28-B13L meets all these criteria, providing functional and mechanical interchangeability with the obsolete main part number.

Parameter Comparison

Engineering Selection Recommendations

The 91A1A-B28-B13L is the direct substitute for the obsolete 91A1A-B28-B13. All electrical and mechanical parameters are identical, ensuring drop-in compatibility in existing circuit designs and mechanical assemblies.

The substitute part offers the following advantages:

• Active product status with current manufacturing support
• ROHS3 compliance, meeting modern regulatory requirements for new designs and production runs
• REACH compliance status, supporting supply chain requirements for regulated markets
• Equivalent inventory availability (1203 pcs in stock versus 768 pcs for the obsolete part)

The main part number 91A1A-B28-B13 is no longer recommended for new designs due to obsolete status and non-compliance with current environmental regulations. The 91A1A-B28-B13L provides full functional and mechanical interchangeability while meeting current compliance standards.

Frequently Asked Questions (FAQ)

Q: Can the 91A1A-B28-B13L be used as a direct replacement for the 91A1A-B28-B13?

A: Yes. All electrical specifications (5k Ohm, 1W, ±20% tolerance, linear taper, conductive plastic material) and mechanical specifications (panel mount, 3/8-32 bushing thread, 300° rotation, slotted actuator, PC pin termination) are identical. The substitute part is mechanically and electrically interchangeable.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and compliance certifications. The 91A1A-B28-B13 is obsolete and RoHS non-compliant. The 91A1A-B28-B13L is an active product with ROHS3 compliance and REACH compliance status. Functionally and mechanically, both parts are equivalent.

Q: Why does the main part number show as obsolete?

A: The 91A1A-B28-B13 has been discontinued by the manufacturer. The 91A1A-B28-B13L represents the current production equivalent, incorporating modern compliance standards while maintaining identical electrical and mechanical performance.

Q: Are there packaging differences between these parts?

A: Yes. The main part number 91A1A-B28-B13 is supplied in standard packaging, while the substitute 91A1A-B28-B13L is supplied in bulk packaging. This does not affect component performance or compatibility.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on matching: resistance value (5k Ohm), power rating (1W), taper type (linear), number of gangs (1), number of turns (1.0), resistive material (conductive plastic), termination style (PC pins), mounting type (panel mount), mechanical envelope (0.687" x 0.625" rectangular body), bushing thread (3/8-32), rotation angle (300°), and actuator specifications (slotted, 0.875" length, 0.250" diameter).

Q: Is the 91A1A-B28-B13L suitable for new product designs?

A: Yes. The 91A1A-B28-B13L is an active product with current manufacturing support and meets ROHS3 and REACH compliance requirements, making it suitable for new designs and production applications.