RC12JB110K Equivalent & Substitute Parts

Part Overview

The RC12JB110K is a 110 kOhms ±5% 0.5W through-hole axial resistor manufactured by Stackpole Electronics Inc. This carbon composition resistor features non-inductive construction with pulse withstanding capability, designed for applications requiring precise resistance values with tight tolerance specifications. The part is currently obsolete, making identification of suitable substitute components essential for ongoing production support and legacy system maintenance.

Substiute Parts

RC12JB110K

Stackpole Electronics IncIn Stock: 887RC12JB110K Datasheet

Current PartRFQ

RC12KB110K

Stackpole Electronics IncIn Stock: 773RC12KB110K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC12JB110K is determined by the following critical parameters:

• Resistance Value: Must be 110 kOhms
• Power Rating: Must be 0.5W (1/2W) minimum
• Package Type: Must be Axial configuration
• Composition: Carbon Composition construction
• Operating Temperature Range: Must support -55°C to 125°C
• Physical Dimensions: 0.142" Dia x 0.374" L (3.60mm x 9.50mm)
• Termination Count: 2-pin axial leads
• Compliance: ROHS3 Compliant

The RC12KB110K qualifies as a direct substitute based on matching all critical parameters. The tolerance specification difference (±10% versus ±5%) represents the primary technical distinction and must be evaluated against circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

The RC12KB110K serves as the manufacturer-recommended substitute for the obsolete RC12JB110K. Both components are manufactured by Stackpole Electronics Inc and maintain identical electrical and mechanical specifications with the exception of tolerance classification.

Selection of RC12KB110K is supported by:

• Active product status ensuring continued availability and supply chain reliability
• Identical power rating, package configuration, and physical dimensions enabling direct board-level replacement
• Matching operating temperature range and compliance certifications (ROHS3, REACH Unaffected, EAR99)
• Identical carbon composition construction with non-inductive and pulse withstanding characteristics

The tolerance difference (±10% versus ±5%) must be evaluated within the context of 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 RC12KB110K directly replace RC12JB110K in existing assemblies?

A: Yes, RC12KB110K provides direct physical and electrical replacement. Both components share identical axial package dimensions (0.142" Dia x 0.374" L), power rating (0.5W), and operating temperature range (-55°C to 125°C). The tolerance specification difference must be evaluated against circuit performance requirements.

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

A: The RC12JB110K specifies ±5% tolerance while the RC12KB110K specifies ±10% tolerance. Both are 110 kOhms carbon composition resistors with identical power ratings and package configurations.

Q: Are both parts ROHS3 compliant?

A: Yes, both RC12JB110K and RC12KB110K are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Why is the RC12JB110K listed as obsolete?

A: The RC12JB110K has been discontinued by Stackpole Electronics Inc. The RC12KB110K remains in active production and serves as the recommended alternative for new designs and legacy system support.

Q: Do these resistors have identical physical dimensions?

A: Yes, both components measure 0.142" diameter by 0.374" length (3.60mm x 9.50mm) and feature 2-pin axial terminations, enabling direct board-level substitution without layout modifications.