CB5JB1R00 Equivalent & Substitute Parts

Part Overview

The CB5JB1R00 is a 1 Ohm, 5% tolerance, 5W through-hole axial wirewound resistor manufactured by Stackpole Electronics Inc. This component is designed for applications requiring flame-proof and moisture-resistant characteristics in high-power dissipation circuits. The part maintains Active product status with 730 units in current inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter range for this resistor category.

Substiute Parts

CB5JB1R00

Stackpole Electronics IncIn Stock: 748CB5JB1R00 Datasheet

Current PartRFQ

SQPW51R0J

TE Connectivity Passive ProductIn Stock: 30309SQPW51R0J Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CB5JB1R00 is determined by strict equivalence in the following parameters:

• Resistance value: 1 Ohms
• Tolerance: ±5%
• Power rating: 5W
• Composition: Wirewound
• Package: Axial through-hole
• Features: Flame Proof, Moisture Resistant, Safety
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected

The substitute part SQPW51R0J meets all core electrical and mechanical requirements. Variations in temperature coefficient (±300ppm/°C vs. ±200ppm/°C) and maximum operating temperature (-55°C ~ 250°C vs. -55°C ~ 275°C) remain within acceptable substitution parameters for this resistor category. Physical dimensions differ slightly due to manufacturer design standards while maintaining identical axial package classification and termination count.

Parameter Comparison

Engineering Selection Recommendations

Both CB5JB1R00 and SQPW51R0J are Active status components with full ROHS3 compliance and REACH unaffected designation. Selection between these parts depends on application-specific thermal requirements. The CB5JB1R00 supports operation to 275°C maximum, while SQPW51R0J operates to 250°C maximum. For applications operating below 250°C, either part satisfies regulatory and functional requirements. The CB5JB1R00 provides superior temperature coefficient stability at ±200ppm/°C compared to SQPW51R0J at ±300ppm/°C, relevant for precision circuit applications. Both parts maintain identical electrical performance in standard operating ranges and are suitable for direct substitution in most circuit implementations.

Frequently Asked Questions (FAQ)

Q: Can SQPW51R0J replace CB5JB1R00 in all applications?

A: SQPW51R0J is electrically and mechanically compatible for applications operating within -55°C to 250°C. Applications requiring operation above 250°C require CB5JB1R00 or equivalent parts rated to 275°C.

Q: What is the significance of the temperature coefficient difference?

A: Temperature coefficient indicates resistance value drift with temperature change. CB5JB1R00 at ±200ppm/°C exhibits lower drift than SQPW51R0J at ±300ppm/°C. For precision applications with tight tolerance requirements across temperature ranges, CB5JB1R00 is preferred.

Q: Are the physical dimensions compatible for PCB layout?

A: Both parts use axial package configuration with identical lead spacing and termination count. CB5JB1R00 dimensions are 9.50mm x 22.00mm; SQPW51R0J dimensions are 10.00mm x 9.00mm x 22.00mm. Verify PCB footprint clearance for the slightly larger rectangular cross-section of SQPW51R0J.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both CB5JB1R00 and SQPW51R0J are ROHS3 Compliant and REACH Unaffected, meeting identical regulatory standards for industrial and commercial applications.

Q: What inventory considerations apply to these parts?

A: CB5JB1R00 has 730 units in stock (Tray packaging). SQPW51R0J has 30,258 units in stock (Bulk packaging). Bulk packaging of SQPW51R0J may offer cost advantages for high-volume production requirements.