KAL25JB25R0 Equivalent & Substitute Parts

Part Overview

The KAL25JB25R0 is a 25 Ohms ±5% 25W wirewound chassis mount resistor manufactured by Stackpole Electronics Inc. This component is classified as Active product status with ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required for design flexibility, inventory management, or component availability across manufacturing environments.

Substiute Parts

KAL25JB25R0

Stackpole Electronics IncIn Stock: 936KAL25JB25R0 Datasheet

Current PartRFQ

KAL25FB25R0

Stackpole Electronics IncIn Stock: 1209KAL25FB25R0 Datasheet

Parametric EquivalentRFQ

825F25RE

OhmiteIn Stock: 1158825F25RE Datasheet

UpgradeRFQ

RH02525R00FE02

Vishay DaleIn Stock: 1014RH02525R00FE02 Datasheet

UpgradeRFQ

UAL25-25RF8

RiedonIn Stock: 687UAL25-25RF8 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KAL25JB25R0 is determined by the following critical parameters: resistance value (25 Ohms), power rating (25W), composition (wirewound), housing type (aluminum with flanges), lead style (solder lugs), and package configuration (axial, box). All identified substitute parts maintain these core electrical and mechanical specifications. Tolerance variations (±5% to ±1%) represent tighter specifications and do not prevent substitution. Temperature coefficient differences (±30ppm/°C to ±20ppm/°C) and operating temperature range variations are within acceptable substitution parameters when the maximum operating temperature meets or exceeds the application requirement.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the KAL25JB25R0. The KAL25FB25R0 offers parametric equivalence with improved tolerance (±1%) while maintaining identical temperature coefficient and operating range specifications. The 825F25RE, RH02525R00FE02, and UAL25-25RF8 provide tighter tolerance specifications (±1%) with improved temperature coefficient performance (±20ppm/°C). The RH02525R00FE02 operates to 250°C maximum, which is 25°C lower than the primary part; this substitution is valid only when application operating temperature does not exceed 250°C. The UAL25-25RF8 includes additional features (current sense, flame proof, pulse withstanding, safety) and is suitable for applications requiring enhanced performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can KAL25FB25R0 replace KAL25JB25R0 in all applications? A: Yes. The KAL25FB25R0 maintains identical resistance, power rating, composition, temperature coefficient, and operating temperature range. The tighter tolerance (±1% versus ±5%) represents improved specification performance and does not prevent substitution.

Q: What is the key difference between 825F25RE and other substitutes? A: The 825F25RE is supplied in Tray packaging, whereas the primary part and most substitutes are supplied in Bulk packaging. Electrical and mechanical specifications are equivalent. Packaging selection depends on procurement and assembly process requirements.

Q: Is RH02525R00FE02 suitable for all applications requiring KAL25JB25R0? A: The RH02525R00FE02 is suitable when the application maximum operating temperature does not exceed 250°C. The primary part and most substitutes operate to 275°C. Verify application temperature requirements before selection.

Q: What additional capabilities does UAL25-25RF8 provide? A: The UAL25-25RF8 includes current sense, flame proof, pulse withstanding, and safety features. These features are not present in the primary part. Select this substitute only when these additional capabilities are required or beneficial for the application.

Q: Are all substitutes mechanically compatible with KAL25JB25R0 mounting? A: Yes. All substitutes share identical mounting features (flanges), lead style (solder lugs), and package configuration (axial, box). Physical dimensions are within acceptable tolerance for standard chassis mount applications.