RC14JB620K Equivalent & Substitute Parts

Part Overview

The RC14JB620K is a 620 kOhms ±5% 0.25W through-hole axial resistor manufactured by Stackpole Electronics Inc. This carbon composition resistor features non-inductive and pulse-withstanding characteristics, operating across a temperature range of -55°C to 125°C. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives to maintain design continuity and ensure supply chain availability.

Substiute Parts

RC14JB620K

Stackpole Electronics IncIn Stock: 1095RC14JB620K Datasheet

Current PartRFQ

RC14KB620K

Stackpole Electronics IncIn Stock: 921RC14KB620K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC14JB620K is determined by the following critical parameters:

• Resistance Value: 620 kOhms (exact match required)
• Power Rating: 0.25W / 1/4W (exact match required)
• Package Type: Axial through-hole (exact match required)
• Composition: Carbon Composition (exact match required)
• Physical Dimensions: 0.094" Dia x 0.248" L (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• Compliance: ROHS3 Compliant, REACH Unaffected (exact match required)

The RC14KB620K qualifies as a direct substitute based on matching all critical parameters. The tolerance specification differs (±10% versus ±5%), which represents a relaxation of the tolerance requirement and is acceptable in applications where the tighter tolerance of the original part is not mandatory.

Parameter Comparison

Engineering Selection Recommendations

The RC14KB620K is the designated substitute for the obsolete RC14JB620K. 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, ensuring ongoing availability and supply chain continuity.

Both parts satisfy ROHS3 compliance and REACH regulatory requirements. The RC14KB620K's ±10% tolerance represents a wider specification window compared to the original ±5% tolerance. Selection of the substitute should be based on circuit design requirements regarding tolerance specifications. Applications requiring the tighter ±5% tolerance specification may require alternative component sourcing outside the Stackpole RC series.

Frequently Asked Questions (FAQ)

Q: Can RC14KB620K directly replace RC14JB620K in all applications?

A: Direct replacement is possible in applications where the ±10% tolerance specification is acceptable. If the original design requires ±5% tolerance, alternative components must be evaluated.

Q: Are the physical dimensions identical between the main part and substitute?

A: Yes. Both parts share identical axial package dimensions of 0.094" Dia x 0.248" L (2.40mm x 6.30mm), ensuring mechanical compatibility in PCB layouts and through-hole mounting.

Q: What is the significance of the tolerance difference?

A: The RC14JB620K specifies ±5% tolerance, while the RC14KB620K specifies ±10% tolerance. This means the RC14KB620K resistance value may deviate up to ±10% from the nominal 620 kOhms specification. Circuit designs sensitive to resistance value variations should account for this wider tolerance band.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the RC14JB620K and RC14KB620K are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Why is the original part classified as obsolete?

A: The RC14JB620K is obsolete, indicating discontinued production. The RC14KB620K remains in active production status, providing a viable alternative for ongoing design requirements and component procurement.