RC12JB430K Equivalent & Substitute Parts

Part Overview

The RC12JB430K is a 430 kOhms ±5% 0.5W through-hole axial 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 part is currently obsolete, making identification of suitable substitute components essential for ongoing maintenance, repair, and legacy system support.

Substiute Parts

RC12JB430K

Stackpole Electronics IncIn Stock: 716RC12JB430K Datasheet

Current PartRFQ

RC12KB430K

Stackpole Electronics IncIn Stock: 812RC12KB430K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC12JB430K is determined by the following critical parameters:

• Resistance Value: Must be 430 kOhms
• Power Rating: Must be 0.5W (1/2W) minimum
• Package Type: Must be Axial configuration
• Physical Dimensions: Must match 0.142" Dia x 0.374" L (3.60mm x 9.50mm)
• Composition: Carbon Composition
• Operating Temperature Range: Must support -55°C to 125°C
• Compliance: ROHS3 Compliant

The RC12KB430K qualifies as a direct substitute based on these parameters. While the tolerance specification differs (±10% versus ±5%), all other electrical and mechanical characteristics remain identical, and the part maintains the same physical footprint and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The RC12KB430K is the manufacturer-recommended substitute for the obsolete RC12JB430K. Both parts are manufactured by Stackpole Electronics Inc and maintain identical electrical and mechanical specifications with the exception of tolerance. The substitute part is currently in active production status with confirmed inventory availability, whereas the original part is obsolete.

Both parts satisfy ROHS3 compliance requirements and are REACH Unaffected. The substitute maintains the same physical footprint, allowing direct board-level replacement without layout modifications. Selection of the RC12KB430K ensures access to a currently manufactured component while preserving circuit functionality and thermal performance across the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can RC12KB430K replace RC12JB430K in all applications?

A: The RC12KB430K is electrically and mechanically compatible with the RC12JB430K. The primary difference is tolerance specification (±10% versus ±5%). Applications requiring the tighter ±5% tolerance must evaluate whether the ±10% tolerance of the substitute is acceptable for circuit performance.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.142" Dia x 0.374" L (3.60mm x 9.50mm) and use identical axial packaging, enabling direct board-level substitution without PCB layout changes.

Q: What is the difference in product status?

A: The RC12JB430K is obsolete and no longer manufactured. The RC12KB430K is an active product with current manufacturing and inventory availability, making it the practical choice for new procurement and ongoing system support.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the RC12JB430K and RC12KB430K are ROHS3 Compliant and REACH Unaffected, satisfying equivalent regulatory requirements.

Q: Are there inventory considerations?

A: The RC12KB430K has confirmed active inventory (724 Pcs New Original In Stock), whereas the RC12JB430K is obsolete with limited remaining stock (691 Pcs). The substitute ensures reliable procurement for current and future applications.