RC14KB470K Equivalent & Substitute Parts

Part Overview

The RC14KB470K is a 470 kOhms ±10% 0.25W axial through-hole resistor manufactured by Stackpole Electronics Inc. This carbon composition resistor features non-inductive and pulse withstanding characteristics, designed for applications requiring reliable performance across the -55°C to 125°C operating temperature range. The product is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

RC14KB470K

Stackpole Electronics IncIn Stock: 842RC14KB470K Datasheet

Current PartRFQ

ASRM12JB470K

Stackpole Electronics IncIn Stock: 767ASRM12JB470K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC14KB470K is determined by the following critical parameters:

Resistance Value: The substitute must maintain 470 kOhms nominal resistance to ensure circuit functionality.

Package Type: Axial configuration is required for mechanical and electrical compatibility with existing PCB layouts and through-hole assembly processes.

Electrical Characteristics: The substitute must support the circuit's voltage and current requirements. Enhanced tolerance (±5% vs ±10%) and increased power rating (0.5W vs 0.25W) provide improved performance margins without compromising circuit operation.

Compliance & Status: Active product status with ROHS3 compliance ensures long-term availability and regulatory alignment.

The ASRM12JB470K qualifies as a direct substitute based on matching resistance value, axial package configuration, and superior electrical specifications that maintain backward compatibility.

Parameter Comparison

Engineering Selection Recommendations

The ASRM12JB470K is the recommended substitute for the obsolete RC14KB470K. Selection is based on:

Product Availability: The RC14KB470K is obsolete, while the ASRM12JB470K maintains active product status, ensuring reliable procurement and long-term supply chain continuity.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and safety standards.

Performance Enhancement: The substitute provides tighter tolerance (±5%), higher power rating (0.5W), and extended operating temperature range (-55°C ~ 155°C), delivering improved reliability margins for circuit operation.

Mechanical Compatibility: Identical axial package configuration ensures direct PCB layout compatibility without redesign requirements.

Frequently Asked Questions (FAQ)

Q: Can the ASRM12JB470K directly replace the RC14KB470K in existing designs?

A: Yes. Both parts share identical 470 kOhms resistance value and axial package configuration. The substitute's improved tolerance and power rating provide enhanced performance without circuit modification.

Q: What are the key differences between these resistors?

A: The primary differences are composition (carbon composition vs metal film), tolerance (±10% vs ±5%), power rating (0.25W vs 0.5W), and product status (obsolete vs active). The substitute offers superior electrical specifications and guaranteed availability.

Q: Are there any thermal considerations when substituting?

A: The ASRM12JB470K supports an extended operating temperature range (-55°C ~ 155°C) compared to the RC14KB470K (-55°C ~ 125°C). This provides additional thermal margin for applications operating at elevated temperatures.

Q: Does the package size change affect PCB assembly?

A: The ASRM12JB470K has slightly larger dimensions (0.118" Dia x 0.354" L vs 0.094" Dia x 0.248" L). Verify PCB layout clearances, though axial package configuration remains compatible with standard through-hole assembly processes.

Q: Are both parts RoHS compliant?

A: Yes. Both the RC14KB470K and ASRM12JB470K are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.