RC1KB470R Equivalent & Substitute Parts

Part Overview

The RC1KB470R is a 470 Ohms ±10% 1W through-hole resistor manufactured by Stackpole Electronics Inc. This carbon composition axial resistor features non-inductive and pulse-withstanding characteristics, designed for applications requiring robust performance across the -55°C to 125°C operating temperature range. The product is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

RC1KB470R

Stackpole Electronics IncIn Stock: 957RC1KB470R Datasheet

Current PartRFQ

ASRM1JA470R

Stackpole Electronics IncIn Stock: 1880ASRM1JA470R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC1KB470R is determined by the following critical parameters:

• Resistance Value: Must be 470 Ohms
• Power Rating: Must be 1W minimum
• Package Style: Must be Axial to ensure mechanical and electrical compatibility with existing PCB layouts
• Operating Temperature Range: Must encompass or exceed -55°C to 125°C
• Regulatory Compliance: Must maintain ROHS3 compliance and REACH unaffected status

The ASRM1JA470R qualifies as a direct substitute based on matching all mandatory parameters while offering improved tolerance (±5% versus ±10%) and extended upper operating temperature (155°C versus 125°C).

Parameter Comparison

Engineering Selection Recommendations

The ASRM1JA470R is a qualified substitute for the obsolete RC1KB470R based on the following engineering criteria:

• Both components maintain identical resistance value (470 Ohms) and power rating (1W)
• Axial package compatibility ensures direct mechanical and electrical fit in existing designs
• Operating temperature ranges are compatible, with the ASRM1JA470R providing extended upper temperature capability
• Both components satisfy ROHS3 compliance and REACH unaffected requirements
• The ASRM1JA470R is an active product with current manufacturing availability, addressing the obsolescence of the RC1KB470R
• The substitute offers improved tolerance specification (±5% versus ±10%), providing enhanced precision for applications requiring tighter resistance values

Frequently Asked Questions (FAQ)

Q: Can the ASRM1JA470R be used as a direct replacement for the RC1KB470R?

A: Yes. Both components share identical resistance value (470 Ohms), power rating (1W), and axial package configuration. The ASRM1JA470R is electrically and mechanically compatible with applications designed for the RC1KB470R.

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

A: The RC1KB470R uses carbon composition technology, while the ASRM1JA470R uses metal film technology. The ASRM1JA470R provides tighter tolerance (±5% versus ±10%) and extended operating temperature range (-55°C to 155°C versus -55°C to 125°C).

Q: Are both components RoHS compliant?

A: Yes. Both the RC1KB470R and ASRM1JA470R are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: Will the physical dimensions affect PCB layout compatibility?

A: The ASRM1JA470R has slightly smaller dimensions (0.157" Dia x 0.433" L) compared to the RC1KB470R (0.224" Dia x 0.563" L). Both maintain axial package configuration and two terminations, allowing mechanical fit in existing PCB layouts designed for axial resistors.

Q: Is the ASRM1JA470R currently available?

A: Yes. The ASRM1JA470R is classified as an active product with current manufacturing status, ensuring ongoing availability for new designs and legacy system support.