RC1KB1K00 Equivalent & Substitute Parts

Part Overview

The RC1KB1K00 is a 1 kOhms ±10% 1W through hole resistor in axial package 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.

Substiute Parts

RC1KB1K00

Stackpole Electronics IncIn Stock: 792RC1KB1K00 Datasheet

Current PartRFQ

ASRM1JA1K00

Stackpole Electronics IncIn Stock: 2702ASRM1JA1K00 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC1KB1K00 is based on the following critical parameters:

• Resistance value: 1 kOhms (exact match required)
• Power rating: 1W (minimum requirement)
• Package configuration: Axial through hole (mechanical compatibility)
• Operating temperature range: Must encompass or exceed -55°C ~ 125°C
• Regulatory compliance: ROHS3 compliance maintained

The ASRM1JA1K00 qualifies as a direct substitute based on matching resistance, power rating, and axial package configuration. While the substitute features improved tolerance (±5% versus ±10%) and extended operating temperature range (-55°C ~ 155°C), these represent enhanced performance characteristics that maintain backward compatibility with the original specification.

Parameter Comparison

Engineering Selection Recommendations

The ASRM1JA1K00 is suitable for direct substitution of the RC1KB1K00 in applications requiring 1 kOhms 1W axial resistors. The substitute maintains ROHS3 compliance and active product status, ensuring long-term availability and supply chain continuity. The metal film construction of the substitute provides tighter tolerance control (±5%) compared to the carbon composition original, with an extended operating temperature range to 155°C. Both components are manufactured by Stackpole Electronics Inc and share identical axial package configuration, supporting straightforward mechanical and electrical integration.

Frequently Asked Questions (FAQ)

Q: Can the ASRM1JA1K00 replace the RC1KB1K00 in all applications?

A: Yes, the ASRM1JA1K00 meets or exceeds all critical electrical and mechanical parameters of the RC1KB1K00. The substitute maintains the same resistance value, power rating, and axial package configuration. The improved tolerance and extended temperature range represent enhanced performance characteristics.

Q: What is the primary difference between these two resistors?

A: The main differences are composition type (carbon composition versus metal film) and tolerance specification (±10% versus ±5%). The substitute also provides an extended operating temperature range (-55°C ~ 155°C versus -55°C ~ 125°C).

Q: Are there any package or footprint differences?

A: Both resistors use axial through hole packaging. The ASRM1JA1K00 has slightly smaller physical dimensions (0.157" Dia x 0.433" L versus 0.224" Dia x 0.563" L), but both are compatible with standard axial component footprints.

Q: Why is the RC1KB1K00 marked as obsolete?

A: The RC1KB1K00 is classified as obsolete by the manufacturer. The ASRM1JA1K00 represents the active product line continuation for this resistance and power rating combination.

Q: Are both parts RoHS compliant?

A: Yes, both the RC1KB1K00 and ASRM1JA1K00 are ROHS3 compliant, meeting current regulatory requirements for electronic component manufacturing and use.