PCB5JB4R70 Equivalent & Substitute Parts

Part Overview

The PCB5JB4R70 is a 4.7 Ohm, 5% tolerance, 5W through-hole axial wirewound resistor manufactured by Stackpole Electronics Inc. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part features flame-proof and moisture-resistant construction with safety-rated wirewound composition, suitable for applications requiring robust thermal and environmental performance across the -55°C to 275°C operating range.

Substiute Parts

PCB5JB4R70

Stackpole Electronics IncIn Stock: 907PCB5JB4R70 Datasheet

Current PartRFQ

CB5JB4R70

Stackpole Electronics IncIn Stock: 871CB5JB4R70 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCB5JB4R70 is determined by strict equivalence across the following critical parameters:

• Resistance value: 4.7 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 5W (exact match required)
• Composition: Wirewound (exact match required)
• Package type: Axial (exact match required)
• Operating temperature range: -55°C to 275°C (exact match required)
• Safety and environmental features: Flame Proof, Moisture Resistant, Safety (exact match required)
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected (exact match required)

The CB5JB4R70 qualifies as a direct substitute based on full alignment with all critical electrical and mechanical parameters. Both parts are manufactured by Stackpole Electronics Inc within the same CB series, ensuring design compatibility and functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The CB5JB4R70 is the qualified substitute for the obsolete PCB5JB4R70. Selection of this substitute is supported by:

• Full electrical equivalence across resistance, tolerance, and power rating specifications
• Identical composition, package type, and thermal operating range
• Equivalent safety and environmental feature set
• Matching regulatory compliance certifications (ROHS3, REACH Unaffected)
• Active product status ensuring continued availability and supply chain reliability
• Same manufacturer and series designation, confirming design compatibility

The CB5JB4R70 is available in Tray packaging with 768 units in stock, providing immediate procurement viability for production requirements.

Frequently Asked Questions (FAQ)

Q: Can the CB5JB4R70 be used as a direct replacement for the PCB5JB4R70?

A: Yes. The CB5JB4R70 meets all critical electrical and mechanical specifications of the PCB5JB4R70, including resistance value, tolerance, power rating, composition, package type, operating temperature range, and safety features. Both parts are ROHS3 compliant and manufactured by Stackpole Electronics Inc.

Q: What is the primary difference between these two part numbers?

A: The PCB5JB4R70 is obsolete, while the CB5JB4R70 is active. The CB5JB4R70 also features a lower temperature coefficient (±200ppm/°C versus ±800ppm/°C) and different physical dimensions, though both maintain identical functional performance for standard applications.

Q: Are there packaging differences between the main part and substitute?

A: Yes. The PCB5JB4R70 packaging specification is not provided. The CB5JB4R70 is supplied in Tray packaging. Both parts use axial package type and are compatible with standard through-hole assembly processes.

Q: Does the substitute part maintain the same thermal performance?

A: Both parts operate across the identical temperature range of -55°C to 275°C and share the same flame-proof and moisture-resistant features. The CB5JB4R70 has a lower temperature coefficient, which may provide improved stability in temperature-sensitive applications.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the PCB5JB4R70 and CB5JB4R70 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.