RC14KB470R Equivalent & Substitute Parts

Part Overview

The RC14KB470R is a 470 Ohm ±10% 1/4W axial through-hole resistor manufactured by Stackpole Electronics Inc. This carbon composition resistor features non-inductive and pulse withstanding characteristics, with an operating temperature range of -55°C to 125°C. The product is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

RC14KB470R

Stackpole Electronics IncIn Stock: 820RC14KB470R Datasheet

Current PartRFQ

ASRM12JB470R

Stackpole Electronics IncIn Stock: 684ASRM12JB470R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC14KB470R is determined by the following critical parameters:

• Resistance Value: Must be 470 Ohms
• Package Type: Must be Axial for mechanical and electrical compatibility
• Power Rating: Minimum 0.25W; higher ratings are acceptable
• Tolerance: ±10% or better (lower tolerance values are acceptable)
• Operating Temperature Range: Must encompass or exceed -55°C to 125°C
• Compliance: RoHS3 compliance required

The ASRM12JB470R meets these substitution criteria while offering improved specifications in tolerance and power rating.

Parameter Comparison

Engineering Selection Recommendations

The ASRM12JB470R is the manufacturer-recommended substitute for the RC14KB470R. This substitution is supported by:

• Active Product Status: The ASRM12JB470R is an active product, ensuring long-term availability and supply chain continuity compared to the obsolete RC14KB470R.
• Enhanced Specifications: The substitute provides tighter tolerance (±5% versus ±10%) and higher power rating (0.5W versus 0.25W), offering improved performance margins in circuit applications.
• Extended Operating Temperature: The ASRM12JB470R supports operation to 155°C, exceeding the original part's 125°C maximum.
• Same Manufacturer: Both components are manufactured by Stackpole Electronics Inc, ensuring consistent quality and reliability standards.
• Axial Package Compatibility: Both parts maintain the same axial through-hole package type, allowing direct mechanical substitution in PCB layouts.

Physical dimensions differ slightly; verification of PCB layout clearances is necessary for applications with space constraints.

Frequently Asked Questions (FAQ)

Q: Can the ASRM12JB470R be used as a direct replacement for the RC14KB470R?

A: Yes. Both components share the same resistance value (470 Ohms), axial package type, and operating temperature range minimum. The substitute offers improved tolerance and power rating specifications.

Q: What are the key differences between these two resistors?

A: The primary differences are composition (carbon composition versus metal film), tolerance (±10% versus ±5%), power rating (0.25W versus 0.5W), and physical dimensions. The ASRM12JB470R also supports a higher maximum operating temperature (155°C versus 125°C).

Q: Will the larger physical dimensions of the ASRM12JB470R cause PCB layout issues?

A: The ASRM12JB470R is slightly larger (0.118" Dia x 0.354" L versus 0.094" Dia x 0.248" L). PCB layouts with tight spacing constraints must be verified to accommodate the substitute component.

Q: Is the ASRM12JB470R RoHS compliant?

A: RoHS compliance status for the ASRM12JB470R is not specified in the provided data. Verification with the manufacturer or distributor is necessary if RoHS compliance is a design requirement.

Q: Why is the RC14KB470R classified as obsolete?

A: The RC14KB470R is an older carbon composition resistor design. Modern metal film resistors like the ASRM12JB470R offer superior performance characteristics and are preferred for new designs and long-term supply availability.