RC12KT15R0 Equivalent & Substitute Parts

Part Overview

The RC12KT15R0 is a 15 Ohm ±10% 0.5W through-hole axial resistor manufactured by Stackpole Electronics Inc. This carbon composition 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 part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

RC12KT15R0

Stackpole Electronics IncIn Stock: 1161RC12KT15R0 Datasheet

Current PartRFQ

ASRM12JT15R0

Stackpole Electronics IncIn Stock: 902ASRM12JT15R0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC12KT15R0 is determined by the following critical parameters:

• Resistance Value: Must be 15 Ohms
• Power Rating: Must be 0.5W (1/2W) minimum
• Package Type: Must be Axial configuration for mechanical compatibility
• Operating Temperature Range: Must support -55°C to 125°C minimum
• Pulse Withstanding Capability: Required for application compatibility
• RoHS Compliance: ROHS3 compliance maintained

The ASRM12JT15R0 qualifies as a direct substitute based on these parameters. While it employs metal film composition instead of carbon composition, it meets all functional and mechanical requirements for the RC12KT15R0 application space.

Parameter Comparison

Engineering Selection Recommendations

The ASRM12JT15R0 is the qualified substitute for the obsolete RC12KT15R0. Selection is supported by:

• Active Product Status: The ASRM12JT15R0 maintains active manufacturing status, ensuring long-term availability and supply chain continuity.
• Compliance Alignment: Both parts maintain ROHS3 compliance, satisfying regulatory requirements.
• Enhanced Tolerance: The ±5% tolerance of the ASRM12JT15R0 provides tighter resistance specification compared to the ±10% tolerance of the RC12KT15R0, improving circuit accuracy.
• Extended Temperature Range: Operating capability to 155°C exceeds the original -55°C to 125°C specification, providing additional thermal margin.
• Mechanical Compatibility: Identical axial package configuration ensures direct physical replacement without circuit board modification.

Frequently Asked Questions (FAQ)

Q: Can the ASRM12JT15R0 directly replace the RC12KT15R0 in existing designs?

A: Yes. Both parts share identical resistance value (15 Ohms), power rating (0.5W), axial package configuration, and pulse withstanding capability. The ASRM12JT15R0 meets all functional and mechanical requirements for direct substitution.

Q: What is the difference between carbon composition and metal film resistors?

A: The RC12KT15R0 uses carbon composition construction, while the ASRM12JT15R0 uses metal film construction. Both achieve the required 15 Ohm resistance and 0.5W power rating. The metal film variant offers tighter tolerance (±5% vs ±10%) and extended temperature range (-55°C to 155°C vs -55°C to 125°C).

Q: Are there packaging differences between these parts?

A: Both parts use axial package configuration suitable for through-hole mounting. The ASRM12JT15R0 is supplied in Tape & Reel (TR) packaging, while the RC12KT15R0 was supplied in standard packaging. This does not affect electrical or mechanical compatibility.

Q: Does the tighter tolerance of the ASRM12JT15R0 affect circuit performance?

A: The ±5% tolerance of the ASRM12JT15R0 provides improved resistance accuracy compared to the ±10% tolerance of the RC12KT15R0. This enhancement does not negatively impact circuit performance and may improve overall circuit precision.

Q: Are both parts RoHS compliant?

A: Yes. Both the RC12KT15R0 and ASRM12JT15R0 are ROHS3 compliant, meeting environmental and regulatory requirements.