VM5JB4R70 Equivalent & Substitute Parts

Part Overview

The VM5JB4R70 is a 4.7 Ohm, 5W through-hole radial wirewound resistor manufactured by Stackpole Electronics Inc. This component is designed for applications requiring flame-proof and moisture-resistant performance in high-power dissipation circuits. The part maintains Active product status with 1073 units currently in stock. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.

Substiute Parts

VM5JB4R70

Stackpole Electronics IncIn Stock: 1152VM5JB4R70 Datasheet

Current PartRFQ

SQMW54R7J

TE Connectivity Passive ProductIn Stock: 4327SQMW54R7J Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VM5JB4R70 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 configuration: Radial through-hole (exact match required)
• Operating temperature range: -55°C to 250°C (minimum required)
• Temperature coefficient: ±300ppm/°C (exact match required)
• Functional features: Flame Proof, Moisture Resistant, Safety (all required)
• Regulatory compliance: ROHS3 Compliant (minimum required)

The SQMW54R7J from TE Connectivity Passive Product meets all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the VM5JB4R70 and SQMW54R7J are Active status components with full ROHS3 compliance and REACH Unaffected designation. Selection between these parts may be based on inventory availability, lead time, or supply chain requirements. The VM5JB4R70 currently maintains 1073 units in stock, while the SQMW54R7J has 4222 units available. Both components satisfy identical electrical and mechanical requirements for 4.7 Ohm, 5W radial wirewound resistor applications with flame-proof and moisture-resistant characteristics across the -55°C to 250°C operating range.

Frequently Asked Questions (FAQ)

Q: Can SQMW54R7J be used as a direct replacement for VM5JB4R70?

A: Yes. The SQMW54R7J meets all electrical, mechanical, and regulatory specifications required for direct substitution. Resistance value, tolerance, power rating, composition, package type, operating temperature range, temperature coefficient, and functional features are identical. Both components are ROHS3 compliant.

Q: Are there dimensional differences between these parts?

A: The length and seated height are identical at 0.512" (13.00mm) and 1.024" (26.00mm) respectively. Width dimensions show a minor variation: VM5JB4R70 is 0.374" (9.50mm) while SQMW54R7J is 0.354" (9.00mm). Both fit standard radial through-hole PCB layouts.

Q: Do both parts support the same temperature range?

A: Yes. Both the VM5JB4R70 and SQMW54R7J operate across -55°C to 250°C with identical temperature coefficient specifications of ±300ppm/°C.

Q: What regulatory certifications apply to both parts?

A: Both components are ROHS3 compliant, REACH Unaffected, and classified under ECCN EAR99. HTSUS classification is 8533.21.0080 for both parts.

Q: Are there inventory considerations for selection?

A: The SQMW54R7J has higher current inventory (4222 units) compared to the VM5JB4R70 (1073 units). Supply chain requirements may influence part selection based on project timelines and volume needs.