RC1KB47K0 Equivalent & Substitute Parts

Part Overview

The RC1KB47K0 is a 47 kOhms ±10% 1W through hole resistor in axial configuration, manufactured by Stackpole Electronics Inc as part of the RC series. 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.

Substiute Parts

RC1KB47K0

Stackpole Electronics IncIn Stock: 1203RC1KB47K0 Datasheet

Current PartRFQ

ASRM1JA47K0

Stackpole Electronics IncIn Stock: 1824ASRM1JA47K0 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ASRM1JA47K0 qualifies as a direct substitute for the RC1KB47K0 based on the following critical parameters:

• Resistance Value: Both components are rated at 47 kOhms, ensuring functional equivalence in circuit applications
• Power Rating: Both are 1W components, maintaining identical power dissipation capability
• Package Configuration: Both utilize axial through-hole packaging, ensuring mechanical and electrical compatibility with existing PCB layouts
• Compliance Standards: Both are ROHS3 compliant and REACH unaffected, meeting regulatory requirements

The ASRM1JA47K0 represents an upgrade in tolerance specification (±5% versus ±10%) and composition technology (metal film versus carbon composition), while maintaining full backward compatibility with the original RC1KB47K0 footprint and electrical performance envelope.

Parameter Comparison

Engineering Selection Recommendations

The ASRM1JA47K0 is the direct substitute for the obsolete RC1KB47K0. Both components maintain identical resistance values, power ratings, and axial package configurations. The substitute component is currently in active production status with confirmed inventory availability (1725 pcs), whereas the original part is obsolete with limited remaining stock (1176 pcs).

Both components satisfy ROHS3 compliance and REACH regulatory requirements. The ASRM1JA47K0 provides improved tolerance specification and extended operating temperature range, with no functional or mechanical incompatibility relative to the RC1KB47K0 in standard circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the ASRM1JA47K0 be used as a direct replacement for the RC1KB47K0?

A: Yes. Both components share identical resistance values (47 kOhms), power ratings (1W), and axial package configurations. The ASRM1JA47K0 is mechanically and electrically compatible with existing RC1KB47K0 applications.

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

A: The primary differences are composition technology (carbon composition versus metal film), tolerance specification (±10% versus ±5%), and operating temperature range (-55°C to 125°C versus -55°C to 155°C). The ASRM1JA47K0 represents a technology upgrade while maintaining full backward compatibility.

Q: Are both components compliant with current regulatory standards?

A: Yes. Both the RC1KB47K0 and ASRM1JA47K0 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement.

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

A: The RC1KB47K0 measures 0.224" diameter × 0.563" length (5.70mm × 14.30mm). The ASRM1JA47K0 measures 0.157" diameter × 0.433" length (4.00mm × 11.00mm). Both fit standard axial component footprints, though the substitute is physically more compact.

Q: Why is the RC1KB47K0 listed as obsolete?

A: The RC1KB47K0 has been discontinued by the manufacturer. The ASRM1JA47K0 is the active production equivalent, ensuring long-term availability and supply chain continuity.