KAL50JB100R Equivalent & Substitute Parts

Part Overview

The KAL50JB100R is a 100 Ohms ±5% 50W wirewound chassis mount resistor manufactured by Stackpole Electronics Inc. This component is classified as Active product status with 869 units in stock. The KAL50JB100R serves applications requiring high-power dissipation in compact form factors with flanged mounting. Substitute parts become necessary when design requirements demand improved tolerance specifications, alternative manufacturer sourcing, or enhanced feature sets while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	100 Ohms
Tolerance	±5%
Power Rating	50W
Composition	Wirewound
Temperature Coefficient	±20ppm/°C
Operating Temperature Range	-55°C ~ 275°C
Housing Type	Aluminum
Mounting Feature	Flanges
Lead Style	Solder Lugs
Package Type	Axial, Box
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the KAL50JB100R is determined by the following critical parameters: resistance value (100 Ohms), power rating (50W), composition (wirewound), housing type (aluminum), mounting feature (flanges), lead style (solder lugs), and package configuration (axial, box). Tolerance specifications may vary between the main part (±5%) and substitute parts (±1%), provided the substitute tolerance is equal to or tighter than the original specification. Operating temperature range, temperature coefficient, and compliance certifications (RoHS3, REACH) must be maintained or improved. All substitute parts listed meet or exceed these criteria.

Parameter Comparison

Parameter	KAL50JB100R	KAL50FB100R	RH050100R0FE02	TMC050100R0FE02	UAL50-100RF8
Manufacturer	Stackpole Electronics Inc	Stackpole Electronics Inc	Vishay Dale	Vishay Dale	Riedon
Resistance	100 Ohms	100 Ohms	100 Ohms	100 Ohms	100 Ohms
Tolerance	±5%	±1%	±1%	±1%	±1%
Power Rating	50W	50W	50W	50W	50W
Composition	Wirewound	Wirewound	Wirewound	Wirewound	Wirewound
Temperature Coefficient	±20ppm/°C	±20ppm/°C	±20ppm/°C	±20ppm/°C	±20ppm/°C
Operating Temperature Range	-55°C ~ 275°C	-55°C ~ 275°C	-55°C ~ 250°C	-55°C ~ 250°C	-55°C ~ 275°C
Housing Type	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum
Mounting Feature	Flanges	Flanges	Flanges	Flanges	Flanges
Lead Style	Solder Lugs	Solder Lugs	Solder Lugs	Solder Lugs	Solder Lugs
Package Type	Axial, Box	Axial, Box	Axial, Box	Axial, Box	Axial, Box
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance. KAL50FB100R provides parametric equivalence within the Stackpole Electronics Inc product line with improved tolerance specification (±1% versus ±5%). RH050100R0FE02 and TMC050100R0FE02 from Vishay Dale offer equivalent electrical performance with tighter tolerance; however, operating temperature range is reduced to -55°C ~ 250°C. UAL50-100RF8 from Riedon maintains the full operating temperature range (-55°C ~ 275°C) and introduces additional features including current sense capability, flame proof rating, and pulse withstanding characteristics. All substitute parts are ROHS3 compliant and maintain identical resistance, power rating, composition, temperature coefficient, housing type, mounting feature, and lead style specifications.

Frequently Asked Questions (FAQ)

Q: Can KAL50FB100R replace KAL50JB100R in all applications? A: KAL50FB100R is a parametric equivalent with tighter tolerance (±1% versus ±5%). It maintains identical electrical and mechanical specifications, operating temperature range, and compliance certifications. Substitution is valid for applications where the improved tolerance does not create design conflicts.

Q: What is the difference between Vishay Dale parts (RH050100R0FE02, TMC050100R0FE02) and the original KAL50JB100R? A: Both Vishay Dale parts offer ±1% tolerance and equivalent 50W power rating with identical resistance and composition. The operating temperature range is reduced to -55°C ~ 250°C compared to the original -55°C ~ 275°C specification. Physical dimensions remain compatible with flanged mounting and solder lug leads.

Q: What advantages does UAL50-100RF8 provide? A: UAL50-100RF8 maintains the full operating temperature range (-55°C ~ 275°C) and adds current sense, flame proof, pulse withstanding, and safety features. Tolerance is improved to ±1%, and physical dimensions remain within compatible specifications for flanged mounting applications.

Q: Are all substitute parts RoHS3 compliant? A: All listed substitute parts are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance with the original KAL50JB100R.

Q: Can substitute parts be used interchangeably in PCB designs? A: All substitute parts share identical package type (Axial, Box), mounting feature (flanges), and lead style (solder lugs). Physical dimensions are equivalent within tolerance, supporting direct substitution in existing board layouts.

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