RC12JB470R Equivalent & Substitute Parts

Part Overview

The RC12JB470R is a 470 Ohm ±5% 0.5W through-hole axial resistor manufactured by Stackpole Electronics Inc. This carbon composition resistor features non-inductive and pulse withstanding characteristics, designed for applications requiring reliable performance across industrial temperature ranges. The product is currently obsolete, making equivalent substitutes necessary for ongoing maintenance, repair, and legacy system support.

Substiute Parts

RC12JB470R

Stackpole Electronics IncIn Stock: 787RC12JB470R Datasheet

Current PartRFQ

ASRM12JB470R

Stackpole Electronics IncIn Stock: 684ASRM12JB470R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the RC12JB470R is determined by the following critical parameters:

• Resistance Value: 470 Ohms (exact match required)
• Tolerance: ±5% (acceptable tolerance band)
• Power Rating: 0.5W minimum (1/2W)
• Package Configuration: Axial through-hole
• Number of Terminations: 2-terminal configuration
• Operating Temperature Range: Minimum -55°C ~ 125°C coverage
• Regulatory Compliance: ROHS3 compliance maintained

The ASRM12JB470R qualifies as a direct substitute based on matching all critical electrical and mechanical parameters while maintaining regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The ASRM12JB470R is the manufacturer-recommended substitute for the obsolete RC12JB470R. Both components maintain ROHS3 compliance and meet the specified electrical requirements of 470 Ohms ±5% at 0.5W power rating.

The substitute offers an extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C) and improved product status as an active component. The metal film composition of the ASRM12JB470R provides enhanced stability compared to the carbon composition construction of the original part, while maintaining pulse withstanding capability.

Physical dimensions differ slightly, with the substitute measuring 0.118" Dia x 0.354" L compared to the original 0.142" Dia x 0.374" L. Both maintain axial through-hole configuration with 2 terminations, ensuring mechanical compatibility in standard PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the ASRM12JB470R be used as a direct replacement for RC12JB470R in existing designs?

A: Yes. Both components share identical resistance value (470 Ohms), tolerance (±5%), power rating (0.5W), and axial package configuration. The substitute maintains ROHS3 compliance and operates within the required temperature range.

Q: What is the difference in physical size between these components?

A: The RC12JB470R measures 0.142" Dia x 0.374" L (3.60mm x 9.50mm), while the ASRM12JB470R measures 0.118" Dia x 0.354" L (3.00mm x 9.00mm). The substitute is slightly smaller in both diameter and length. Both fit standard axial through-hole PCB layouts.

Q: Why is the RC12JB470R obsolete?

A: The RC12JB470R has been discontinued by the manufacturer. The ASRM12JB470R is the active equivalent offering improved performance characteristics and continued availability.

Q: Are there any compliance differences between the two parts?

A: Both components are ROHS3 compliant and REACH unaffected. Regulatory compliance is maintained across the substitution.

Q: What is the difference between carbon composition and metal film construction?

A: The RC12JB470R uses carbon composition construction, while the ASRM12JB470R uses metal film construction. Both meet the specified electrical parameters. The metal film variant offers improved stability and extended temperature range capability.