KAL50JB5R00 Equivalent & Substitute Parts

Part Overview

The KAL50JB5R00 is a 5 Ohms ±5% 50W wirewound chassis mount resistor manufactured by Stackpole Electronics Inc. This component is classified as Active product status with ROHS3 compliance. Equivalent and substitute parts are identified when design requirements permit tolerance relaxation, manufacturer substitution, or performance upgrades while maintaining core electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	5 Ohms
Tolerance	±5%
Power Rating	50W
Composition	Wirewound
Temperature Coefficient	±50ppm/°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 is determined by matching the following core parameters: resistance value (5 Ohms), power rating (50W), composition (wirewound), housing type (aluminum), mounting feature (flanges), and lead style (solder lugs). Tolerance variations are permitted when design specifications allow. Temperature coefficient and operating temperature range are secondary criteria for extended performance applications.

Substitute parts are grouped into three categories:

Parametric Equivalent: KAL50FB5R00 matches all primary parameters with improved tolerance (±1% vs ±5%).

Direct Manufacturer Equivalents: HSA505R0J and THS505R0J from TE Connectivity Passive Product maintain identical electrical specifications and mechanical form factor.

Upgrade Options: RH0505R000FE02 (Vishay Dale) and UAL50-5RF8 (Riedon) provide enhanced tolerance (±1%) and extended feature sets while preserving core compatibility.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff	Op Temp Range	Size (mm)	Height (mm)	RoHS Status
KAL50JB5R00	Stackpole Electronics Inc	5 Ω	±5%	50	±50ppm/°C	-55 ~ 275°C	49.99 x 28.96	16.28	ROHS3
KAL50FB5R00	Stackpole Electronics Inc	5 Ω	±1%	50	±50ppm/°C	-55 ~ 275°C	49.99 x 28.96	16.28	ROHS3
HSA505R0J	TE Connectivity Passive Product	5 Ω	±5%	50	±50ppm/°C	-55 ~ 200°C	51.00 x 30.00	17.00	ROHS3
THS505R0J	TE Connectivity Passive Product	5 Ω	±5%	50	±50ppm/°C	-55 ~ 200°C	51.00 x 30.00	17.00	ROHS3
RH0505R000FE02	Vishay Dale	5 Ω	±1%	50	±50ppm/°C	-55 ~ 250°C	49.99 x 28.96	15.87	ROHS3
UAL50-5RF8	Riedon	5 Ω	±1%	50	±50ppm/°C	-55 ~ 275°C	50.00 x 29.00	16.00	ROHS3

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original KAL50JB5R00 component.

KAL50FB5R00 is the direct parametric equivalent from Stackpole Electronics Inc, offering identical mechanical dimensions and improved tolerance specification. Selection is appropriate when tolerance tightening is required without manufacturer change.

HSA505R0J and THS505R0J from TE Connectivity Passive Product provide direct electrical equivalence with identical tolerance and power rating. Dimensional variations (51.00 x 30.00mm vs 49.99 x 28.96mm) and reduced operating temperature maximum (-55 ~ 200°C vs -55 ~ 275°C) require mechanical layout verification and thermal environment assessment.

RH0505R000FE02 (Vishay Dale) and UAL50-5RF8 (Riedon) are upgrade options with ±1% tolerance. RH0505R000FE02 maintains compact dimensions matching the original part. UAL50-5RF8 extends operating temperature to 275°C and includes additional features (current sense, flame proof, pulse withstanding, safety certification).

Frequently Asked Questions (FAQ)

Q: Can KAL50FB5R00 replace KAL50JB5R00 directly? A: Yes. KAL50FB5R00 is a parametric equivalent with identical mechanical dimensions and improved tolerance (±1% vs ±5%). No layout modifications are required.

Q: What are the dimensional differences between substitute parts? A: KAL50JB5R00, KAL50FB5R00, and RH0505R000FE02 share dimensions of 49.99 x 28.96mm. HSA505R0J and THS505R0J are slightly larger at 51.00 x 30.00mm. UAL50-5RF8 measures 50.00 x 29.00mm. Height variations range from 15.87mm to 17.00mm. Verify PCB layout clearance before substitution.

Q: Are there operating temperature limitations with TE Connectivity parts? A: HSA505R0J and THS505R0J operate to 200°C maximum, compared to 275°C for the original KAL50JB5R00. Applications requiring temperatures above 200°C must use KAL50FB5R00, RH0505R000FE02, or UAL50-5RF8.

Q: What packaging options are available? A: KAL50JB5R00, KAL50FB5R00, RH0505R000FE02, and UAL50-5RF8 are supplied in Bulk packaging. THS505R0J is supplied in Tray packaging. HSA505R0J is supplied in Bulk packaging. Verify procurement requirements for your application.

Q: Do all substitutes maintain ROHS3 compliance? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the regulatory status of KAL50JB5R00.

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