PCB5JB1R20 Equivalent & Substitute Parts

Part Overview

The PCB5JB1R20 is a 1.2 Ohm, 5W wirewound axial resistor manufactured by Stackpole Electronics Inc, designed for through-hole applications requiring flame-proof and moisture-resistant characteristics. This part is classified as obsolete, making identification of suitable substitutes essential for ongoing production and maintenance applications. The CB series alternative provides equivalent electrical performance with active product status and improved availability.

Substiute Parts

PCB5JB1R20

Stackpole Electronics IncIn Stock: 899PCB5JB1R20 Datasheet

Current PartRFQ

CB5JB1R20

Stackpole Electronics IncIn Stock: 883CB5JB1R20 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PCB5JB1R20 is determined by strict equivalence across the following parameters:

• Resistance value: 1.2 Ohms
• Tolerance: ±5%
• Power rating: 5W
• Composition: Wirewound
• Package configuration: Axial through-hole
• Operating temperature range: -55°C to 275°C
• Safety and environmental features: Flame proof, moisture resistant
• Regulatory compliance: ROHS3 compliant

The CB5JB1R20 meets all substitution criteria. Differences in temperature coefficient (±200ppm/°C vs. ±800ppm/°C) and physical dimensions remain within acceptable variance for axial wirewound resistor applications and do not preclude substitution.

Parameter Comparison

Engineering Selection Recommendations

The CB5JB1R20 is the direct substitute for the obsolete PCB5JB1R20. Both parts are manufactured by Stackpole Electronics Inc and maintain identical electrical specifications for resistance, tolerance, and power rating. The substitute part carries active product status, ensuring long-term availability and supply chain continuity. Both parts satisfy ROHS3 and REACH compliance requirements. The CB5JB1R20 is available in tray packaging with 787 units in stock, providing immediate procurement capability for production and replacement applications.

Frequently Asked Questions (FAQ)

Q: Can CB5JB1R20 be used as a direct replacement for PCB5JB1R20?

A: Yes. Both parts are electrically and mechanically equivalent wirewound axial resistors with identical resistance, tolerance, power rating, and operating temperature range. The CB5JB1R20 is the active production equivalent.

Q: What is the significance of the different temperature coefficients?

A: The CB5JB1R20 exhibits a lower temperature coefficient (±200ppm/°C vs. ±800ppm/°C), indicating superior stability across temperature variations. This represents an improvement over the original PCB5JB1R20 specification.

Q: Are there packaging differences between these parts?

A: The PCB5JB1R20 packaging specification is not provided. The CB5JB1R20 is supplied in tray packaging. Both maintain the same axial through-hole form factor suitable for standard PCB assembly processes.

Q: Why is the PCB5JB1R20 marked as obsolete?

A: Obsolete status indicates the part is no longer in active production. The CB5JB1R20 serves as the current production equivalent and should be specified for new designs and ongoing procurement.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both PCB5JB1R20 and CB5JB1R20 are ROHS3 compliant and REACH unaffected, meeting current environmental and safety regulations.