KAL50JB6R80 Equivalent & Substitute Parts

Part Overview

The KAL50JB6R80 is a 6.8 Ohms ±5% 50W wirewound chassis mount resistor manufactured by Stackpole Electronics Inc. This component is designed for high-power applications requiring reliable thermal dissipation and mechanical stability through flanged mounting. The part maintains Active product status with full ROHS3 compliance and REACH unaffected certification. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required while accommodating different tolerance specifications or inventory availability.

Substiute Parts

KAL50JB6R80

Stackpole Electronics IncIn Stock: 1048KAL50JB6R80 Datasheet

Current PartRFQ

KAL50FB6R80

Stackpole Electronics IncIn Stock: 948KAL50FB6R80 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The KAL50JB6R80 accepts substitution with KAL50FB6R80 based on the following criteria:

Matching Parameters (Substitution Basis):

• Resistance value: 6.8 Ohms (identical)
• Power rating: 50W (identical)
• Composition: Wirewound (identical)
• Temperature coefficient: ±50ppm/°C (identical)
• Operating temperature range: -55°C to 275°C (identical)
• Housing type: Aluminum (identical)
• Mounting feature: Flanges (identical)
• Lead style: Solder Lugs (identical)
• Physical dimensions: 1.968" L × 1.140" W, 0.641" height (identical)
• Compliance: ROHS3 Compliant, REACH Unaffected (identical)

Differentiating Parameter:

• Tolerance: KAL50JB6R80 specifies ±5%, while KAL50FB6R80 specifies ±1%

The substitute part KAL50FB6R80 provides tighter tolerance specifications while maintaining all other electrical and mechanical characteristics, making it suitable for applications requiring higher precision resistance values.

Parameter Comparison

Engineering Selection Recommendations

Both KAL50JB6R80 and KAL50FB6R80 maintain Active product status with identical ROHS3 compliance and REACH unaffected certification. Selection between these parts depends on tolerance requirements: the KAL50JB6R80 with ±5% tolerance is suitable for general-purpose 50W applications, while the KAL50FB6R80 with ±1% tolerance addresses precision-critical circuits requiring tighter resistance value control. Both parts share identical mechanical mounting interfaces, thermal characteristics, and environmental operating ranges, ensuring direct substitution capability within the specified tolerance parameters.

Frequently Asked Questions (FAQ)

Q: Can KAL50FB6R80 directly replace KAL50JB6R80 in existing designs?

A: Yes. Both parts share identical resistance value (6.8 Ohms), power rating (50W), physical dimensions, mounting features, and operating temperature range. The KAL50FB6R80 provides tighter tolerance (±1% versus ±5%), making it a direct mechanical and electrical substitute. Circuit performance remains unchanged when substituting with the tighter tolerance variant.

Q: What is the primary difference between these two parts?

A: The tolerance specification differs. KAL50JB6R80 specifies ±5% tolerance, while KAL50FB6R80 specifies ±1% tolerance. All other electrical and mechanical parameters remain identical.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both parts operate across -55°C to 275°C with identical ±50ppm/°C temperature coefficient, ensuring equivalent thermal performance in the same applications.

Q: Do these parts require different mounting procedures?

A: No. Both parts feature identical flanged mounting with solder lugs and share the same physical dimensions (1.968" L × 1.140" W, 0.641" height), requiring no changes to PCB layout or mechanical assembly.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both KAL50JB6R80 and KAL50FB6R80 are ROHS3 compliant and REACH unaffected, meeting current environmental standards for electronic component manufacturing and use.