RC12JB6M20 Equivalent & Substitute Parts

Part Overview

The RC12JB6M20 is a 6.2 MOhms ±5% 0.5W axial through-hole resistor manufactured by Stackpole Electronics Inc. This carbon composition resistor features non-inductive and pulse withstanding characteristics, designed for applications requiring high resistance values with tight tolerance specifications. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and component procurement.

Substiute Parts

RC12JB6M20

Stackpole Electronics IncIn Stock: 970RC12JB6M20 Datasheet

Current PartRFQ

RC12KB6M20

Stackpole Electronics IncIn Stock: 975RC12KB6M20 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC12JB6M20 is determined by the following critical parameters:

Electrical Parameters:

• Resistance value: 6.2 MOhms (exact match required)
• Power rating: 0.5W minimum
• Composition: Carbon composition
• Operating temperature range: -55°C to 125°C minimum

Mechanical Parameters:

• Package type: Axial through-hole
• Physical dimensions: 0.142" Dia × 0.374" L
• Number of terminations: 2

Compliance Parameters:

• RoHS3 compliance
• REACH unaffected status

The RC12KB6M20 qualifies as a substitute based on matching all critical electrical, mechanical, and compliance parameters. The tolerance difference (±10% versus ±5%) represents the primary distinction between these components.

Parameter Comparison

Engineering Selection Recommendations

The RC12KB6M20 is the designated manufacturer substitute for the obsolete RC12JB6M20. Both components are manufactured by Stackpole Electronics Inc and maintain identical electrical performance characteristics across all critical parameters: resistance value, power rating, composition type, operating temperature range, and physical dimensions.

The RC12KB6M20 is currently in active production status, ensuring availability for new procurement and system support. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current applications.

The tolerance specification difference (±10% for RC12KB6M20 versus ±5% for RC12JB6M20) must be evaluated against circuit design requirements. Applications requiring the tighter ±5% tolerance specification may require alternative component sourcing or circuit redesign considerations.

Frequently Asked Questions (FAQ)

Q: Can RC12KB6M20 be used as a direct replacement for RC12JB6M20?

A: The RC12KB6M20 is electrically and mechanically compatible with the RC12JB6M20 across all critical parameters. The primary difference is tolerance specification (±10% versus ±5%). Direct substitution is valid for applications where the ±10% tolerance meets circuit requirements.

Q: What is the significance of the tolerance difference between these parts?

A: The RC12JB6M20 provides ±5% tolerance, while the RC12KB6M20 provides ±10% tolerance. This affects the maximum deviation from the nominal 6.2 MOhms resistance value. Applications with strict resistance accuracy requirements must account for this specification difference.

Q: Are both parts physically identical?

A: Yes. Both the RC12JB6M20 and RC12KB6M20 share identical physical dimensions (0.142" Dia × 0.374" L), axial package configuration, and two-terminal design. They are mechanically interchangeable in PCB layouts and through-hole applications.

Q: Why is the RC12JB6M20 listed as obsolete?

A: The RC12JB6M20 has been discontinued by the manufacturer. The RC12KB6M20 remains in active production and serves as the current equivalent component for new designs and system support.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both the RC12JB6M20 and RC12KB6M20 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use.