KAL50JB4R00 Equivalent & Substitute Parts

Part Overview

The KAL50JB4R00 is a 4 Ohms ±5% 50W wirewound chassis mount resistor manufactured by Stackpole Electronics Inc. This component is designed for high-power applications requiring stable resistance performance across extended temperature ranges. The part is currently in active production status with 864 units available in inventory. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.

Substiute Parts

KAL50JB4R00

Stackpole Electronics IncIn Stock: 964KAL50JB4R00 Datasheet

Current PartRFQ

HSA504R0J

TE Connectivity Passive ProductIn Stock: 3413HSA504R0J Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the KAL50JB4R00 is determined by strict equivalence across the following critical parameters:

• Resistance value: 4 Ohms
• Tolerance: ±5%
• Power rating: 50W
• Composition: Wirewound
• Temperature coefficient: ±50ppm/°C
• Housing type: Aluminum
• Mounting feature: Flanges
• Lead style: Solder Lugs
• Regulatory compliance: ROHS3 Compliant

The HSA504R0J from TE Connectivity Passive Product meets all substitution criteria. Both parts share identical electrical specifications and mechanical mounting interfaces, enabling direct functional replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the KAL50JB4R00 and HSA504R0J are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

• Application temperature requirements: The KAL50JB4R00 supports operation to 275°C, while the HSA504R0J is rated to 200°C maximum. Applications requiring sustained operation above 200°C require the KAL50JB4R00.
• Physical space constraints: The HSA504R0J has slightly larger dimensions (51.00mm L × 30.00mm W × 17.00mm H) compared to the KAL50JB4R00 (49.99mm L × 28.96mm W × 16.28mm H). Verify mounting clearance in space-constrained designs.
• Inventory availability: The HSA504R0J has 3363 units in stock versus 864 units for the KAL50JB4R00.

Frequently Asked Questions (FAQ)

Q: Can HSA504R0J replace KAL50JB4R00 in all applications?

A: HSA504R0J is functionally equivalent for applications operating at or below 200°C. Applications requiring sustained operation above 200°C must use KAL50JB4R00, which is rated to 275°C.

Q: Are the physical dimensions compatible?

A: Both parts use flanged mounting with solder lugs. The HSA504R0J is approximately 1mm larger in length and width, and 0.72mm taller. Verify mounting hole spacing and clearance in your specific PCB or chassis layout.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both KAL50JB4R00 and HSA504R0J are ROHS3 compliant and REACH unaffected, with identical ECCN (EAR99) and HTSUS (8533.29.0000) classifications.

Q: What is the temperature coefficient significance?

A: Both parts share ±50ppm/°C temperature coefficient, ensuring equivalent resistance stability across temperature variations within their respective operating ranges.

Q: Are there packaging differences?

A: Both parts are supplied in bulk packaging with axial, box case configuration. No special handling or storage differences apply between the two parts.