CB10JB8R20 Equivalent & Substitute Parts

Part Overview

The CB10JB8R20 is an 8.2 Ohms ±5% 10W axial wirewound resistor manufactured by Stackpole Electronics Inc. This through-hole component features flame-proof and moisture-resistant construction with a safety rating, designed for applications requiring reliable power dissipation in harsh environments. The part maintains Active product status with 967 units in current inventory. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance align with the original design requirements.

Substiute Parts

CB10JB8R20

Stackpole Electronics IncIn Stock: 977CB10JB8R20 Datasheet

Current PartRFQ

SQPW108R2J

TE Connectivity Passive ProductIn Stock: 2398SQPW108R2J Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CB10JB8R20 is determined by strict alignment of the following parameters:

• Resistance value: 8.2 Ohms
• Tolerance: ±5%
• Power rating: 10W
• Composition: Wirewound
• Package: Axial through-hole
• Features: Flame proof, moisture resistant, safety rated
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected, EAR99 classification

The substitute part SQPW108R2J meets all primary electrical and mechanical requirements. Variations in secondary parameters such as temperature coefficient and maximum operating temperature do not preclude substitution when the primary specifications align and the part remains within the design envelope of the original application.

Parameter Comparison

Engineering Selection Recommendations

Both the CB10JB8R20 and SQPW108R2J maintain Active product status and satisfy ROHS3 compliance requirements. The SQPW108R2J is classified as a manufacturer-recommended substitute with higher current inventory availability (2347 units versus 967 units). Selection between these parts should be based on application-specific thermal requirements. The CB10JB8R20 supports operation to 275°C with a tighter temperature coefficient of ±200ppm/°C, while the SQPW108R2J operates to 250°C with ±300ppm/°C. Both parts carry identical electrical ratings, mechanical compatibility, and regulatory certifications suitable for direct substitution in standard applications.

Frequently Asked Questions (FAQ)

Q: Can SQPW108R2J replace CB10JB8R20 in all applications?

A: The SQPW108R2J is a direct electrical and mechanical substitute for the CB10JB8R20. Both parts share identical resistance, tolerance, power rating, composition, and package specifications. Substitution is valid for applications operating within the SQPW108R2J temperature range of -55°C to 250°C. Applications requiring operation above 250°C should retain the CB10JB8R20.

Q: What are the dimensional differences between these parts?

A: The CB10JB8R20 has a square cross-section of 0.374" (9.50mm), while the SQPW108R2J has a rectangular cross-section of 0.394" x 0.354" (10.00mm x 9.00mm). Both maintain the same axial length of 1.890" (48.00mm). Physical space constraints in the application should be evaluated before substitution.

Q: Are both parts RoHS compliant?

A: Yes. Both the CB10JB8R20 and SQPW108R2J are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory standards.

Q: What is the temperature coefficient difference and does it matter?

A: The CB10JB8R20 has a temperature coefficient of ±200ppm/°C, while the SQPW108R2J is ±300ppm/°C. This difference affects resistance stability across temperature variations. Applications with strict tolerance requirements at elevated temperatures should evaluate this parameter against circuit specifications.

Q: Why would I choose one part over the other?

A: Choose CB10JB8R20 for applications requiring superior temperature stability or operation above 250°C. Choose SQPW108R2J for general-purpose applications with better current availability and lower lead times.