CB10JB2R20 Equivalent & Substitute Parts

Part Overview

The CB10JB2R20 is a 2.2 Ohm, 5% tolerance, 10W axial wirewound resistor manufactured by Stackpole Electronics Inc. This through-hole component features flame-proof and moisture-resistant construction with safety-rated design, suitable for applications requiring reliable power dissipation in harsh environments. The part maintains active product status with 802 units currently in stock. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance align with the original design requirements.

Substiute Parts

CB10JB2R20

Stackpole Electronics IncIn Stock: 829CB10JB2R20 Datasheet

Current PartRFQ

SQPW102R2J

TE Connectivity Passive ProductIn Stock: 2284SQPW102R2J Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CB10JB2R20 is determined by strict alignment of the following parameters:

• Resistance value: 2.2 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 10W (exact match required)
• Composition: Wirewound (exact match required)
• Package: Axial through-hole (exact match required)
• Features: Flame proof and moisture resistant construction (required)
• Regulatory compliance: ROHS3 compliant (required)

The substitute part SQPW102R2J from TE Connectivity Passive Product meets all mandatory electrical and mechanical criteria for direct substitution in applications designed for the CB10JB2R20.

Parameter Comparison

Engineering Selection Recommendations

Both the CB10JB2R20 and SQPW102R2J are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement. The SQPW102R2J offers higher inventory availability at 2224 units compared to 802 units for the CB10JB2R20. The substitute part demonstrates a lower temperature coefficient (±300ppm/°C versus ±500ppm/°C), which may provide improved stability in temperature-sensitive applications. The operating temperature range of the SQPW102R2J extends to 250°C, which is 25°C lower than the CB10JB2R20's maximum of 275°C; this difference is relevant only for applications requiring operation above 250°C. All other electrical and mechanical parameters are identical, confirming direct substitution capability.

Frequently Asked Questions (FAQ)

Q: Can SQPW102R2J replace CB10JB2R20 in all applications?

A: Yes, the SQPW102R2J meets all mandatory electrical and mechanical specifications for direct substitution. The only operational constraint is the maximum operating temperature: applications requiring sustained operation above 250°C must use the CB10JB2R20.

Q: What are the physical dimension differences between these parts?

A: Both parts use axial packaging with 1.890" length. The CB10JB2R20 has a 0.374" square cross-section (9.50mm), while the SQPW102R2J has a 0.394" x 0.354" rectangular cross-section (10.00mm x 9.00mm). These dimensional variations are within typical axial resistor tolerances and do not affect PCB layout compatibility for standard through-hole designs.

Q: How do the temperature coefficients differ?

A: The CB10JB2R20 has a temperature coefficient of ±500ppm/°C, while the SQPW102R2J is ±300ppm/°C. The lower coefficient of the substitute part indicates better resistance stability across temperature variations, which is advantageous for precision applications.

Q: Are both parts RoHS compliant?

A: Yes, both the CB10JB2R20 and SQPW102R2J are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

Q: Which part should be selected for new designs?

A: Selection should be based on application-specific requirements. The SQPW102R2J is preferred for applications where higher inventory availability and improved temperature coefficient stability are beneficial. The CB10JB2R20 is required only for applications demanding operation above 250°C.