PDA241-HRT02-253B0 Equivalent & Substitute Parts

Part Overview

The PDA241-HRT02-253B0 is a 25k Ohm 1/2W carbon linear panel mount potentiometer manufactured by Bourns Inc., part of the Pro Audio PDA24 series. This component features a round actuator with solder lug termination and 300° rotation, designed for audio and professional equipment applications. The product is currently obsolete, making identification of compatible substitute parts essential for ongoing maintenance, repair, and new design implementations where this specification remains functionally appropriate.

Key Parameters

Parameter	Value
Resistance	25k Ohm
Power Rating	0.5W (1/2W)
Tolerance	±15%
Taper	Linear
Number of Gangs	1
Number of Turns	1
Rotation	300°
Resistive Material	Carbon
Termination Style	Solder Lug
Mounting Type	Panel Mount
Actuator Type	Round
Actuator Length	0.748" (19.00mm)
Actuator Diameter	0.250" (6.35mm)
Bushing Thread	3/8-32
Body Size	Round - 0.953" Dia (24.20mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the PDA241-HRT02-253B0 is determined by strict equivalence across the following critical parameters:

Resistance value: 25k Ohm (exact match required)
Taper characteristic: Linear (exact match required)
Termination style: Solder Lug (exact match required)
Mounting configuration: Panel Mount with 3/8-32 bushing thread (exact match required)
Actuator specifications: Round type, 0.748" length, 0.250" diameter (exact match required)
Rotation angle: 300° (exact match required)
Resistive material: Carbon (exact match required)

The substitute part PDB241-GTR02-253B0 maintains equivalence across all critical mechanical and electrical parameters. Variations in power rating (0.25W vs. 0.5W) and tolerance (±20% vs. ±15%) represent the primary differences and must be evaluated within the specific application circuit requirements.

Parameter Comparison

Parameter	PDA241-HRT02-253B0 (Main)	PDB241-GTR02-253B0 (Substitute)
Manufacturer	Bourns Inc.	Bourns Inc.
Resistance	25k Ohm	25k Ohm
Power Rating	0.5W (1/2W)	0.25W (1/4W)
Tolerance	±15%	±20%
Taper	Linear	Linear
Number of Gangs	1	1
Number of Turns	1	1
Rotation	300°	300°
Resistive Material	Carbon	Carbon
Termination Style	Solder Lug	Solder Lug
Mounting Type	Panel Mount	Panel Mount
Actuator Type	Round	Round
Actuator Length	0.748" (19.00mm)	0.748" (19.00mm)
Actuator Diameter	0.250" (6.35mm)	0.250" (6.35mm)
Bushing Thread	3/8-32	3/8-32
Body Size	Round - 0.953" Dia (24.20mm)	Round - 0.945" Dia (24.00mm)
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

The PDB241-GTR02-253B0 serves as the active production equivalent for the obsolete PDA241-HRT02-253B0. Both components maintain ROHS3 compliance and are manufactured by Bourns Inc., ensuring regulatory consistency across replacement scenarios.

Selection of PDB241-GTR02-253B0 is appropriate where the application circuit can accommodate the reduced power rating of 0.25W (1/4W) compared to the original 0.5W specification. The increased tolerance of ±20% versus ±15% must be evaluated against circuit performance requirements and any precision-dependent functions.

The minimal body diameter difference (0.945" vs. 0.953") and identical mechanical mounting interface (3/8-32 bushing thread, panel mount configuration) ensure direct mechanical compatibility in existing panel layouts and enclosure designs.

Frequently Asked Questions (FAQ)

Q: Can PDB241-GTR02-253B0 directly replace PDA241-HRT02-253B0 in all applications?

A: Direct replacement is mechanically and electrically feasible where the circuit design accommodates the lower power rating (0.25W vs. 0.5W) and wider tolerance (±20% vs. ±15%). The identical resistance value, taper, termination style, and mounting configuration ensure functional compatibility in the mechanical and electrical interface.

Q: What is the significance of the power rating difference between these parts?

A: The PDA241-HRT02-253B0 is rated for 0.5W continuous dissipation, while the PDB241-GTR02-253B0 is rated for 0.25W. Applications requiring sustained power dissipation exceeding 0.25W must retain the original specification or identify alternative parts with higher power ratings.

Q: How does the tolerance difference affect circuit performance?

A: The PDA241-HRT02-253B0 maintains ±15% tolerance, while PDB241-GTR02-253B0 maintains ±20% tolerance. In circuits where precise resistance values are critical to performance, the wider tolerance of the substitute part may introduce measurable deviation from design specifications.

Q: Are the mechanical dimensions identical between these parts?

A: The components share identical actuator specifications (0.748" length, 0.250" diameter), bushing thread (3/8-32), and mounting type (panel mount). The body diameter differs minimally (0.953" vs. 0.945"), which does not affect panel mounting compatibility.

Q: What is the packaging difference between these parts?

A: The PDA241-HRT02-253B0 is supplied in standard packaging, while PDB241-GTR02-253B0 is supplied in Tray packaging. This difference affects handling and storage but does not impact component functionality or electrical performance.

Q: Are both parts RoHS compliant?

A: Both PDA241-HRT02-253B0 and PDB241-GTR02-253B0 are ROHS3 compliant, ensuring regulatory consistency for applications subject to RoHS requirements.

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