RC14JB100R Equivalent & Substitute Parts

Part Overview

The RC14JB100R is a 100 Ohm ±5% 1/4W axial through-hole resistor manufactured by Stackpole Electronics Inc. This carbon composition resistor features non-inductive and pulse withstanding characteristics, designed for applications requiring these specific electrical properties. The product is currently obsolete, making identification of suitable substitute components essential for ongoing system support, repairs, and legacy equipment maintenance.

Substiute Parts

RC14JB100R

Stackpole Electronics IncIn Stock: 728RC14JB100R Datasheet

Current PartRFQ

ASRM12JA100R

Stackpole Electronics IncIn Stock: 977ASRM12JA100R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC14JB100R is determined by the following critical parameters:

• Resistance value: 100 Ohms (exact match required)
• Tolerance: ±5% (acceptable tolerance band)
• Axial package configuration (mechanical compatibility with through-hole PCB layouts)
• Pulse withstanding capability (functional requirement for application performance)
• RoHS3 compliance (regulatory requirement)
• Operating temperature range compatibility (-55°C ~ 125°C minimum)

The ASRM12JA100R meets these substitution criteria while offering enhanced specifications in power rating (0.5W vs. 0.25W) and maximum operating temperature (155°C vs. 125°C). Both components share identical resistance, tolerance, axial package type, and regulatory compliance status.

Parameter Comparison

Engineering Selection Recommendations

The ASRM12JA100R is the manufacturer-recommended substitute for the obsolete RC14JB100R. Both components maintain identical electrical specifications (100 Ohms ±5%) and axial through-hole package configuration, ensuring direct mechanical and electrical compatibility in PCB layouts designed for the original part.

The substitute offers superior specifications: doubled power rating (0.5W vs. 0.25W), extended maximum operating temperature (155°C vs. 125°C), and active product status ensuring continued availability. The ASRM12JA100R composition change from carbon composition to metal film, combined with flame retardant coating and safety features, provides enhanced reliability for modern applications.

Both components maintain ROHS3 compliance and REACH unaffected status, satisfying current regulatory requirements. Selection of the ASRM12JA100R eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can the ASRM12JA100R directly replace the RC14JB100R in existing designs?

A: Yes. Both components share identical resistance (100 Ohms), tolerance (±5%), and axial package configuration. The substitute fits the same through-hole PCB footprint and maintains electrical compatibility.

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

A: The main differences are composition (carbon composition vs. metal film), power rating (0.25W vs. 0.5W), and maximum operating temperature (125°C vs. 155°C). The ASRM12JA100R provides enhanced thermal performance and higher power dissipation capability.

Q: Why is the RC14JB100R obsolete?

A: The RC14JB100R is listed as obsolete by the manufacturer. The ASRM12JA100R represents the current active alternative from Stackpole Electronics Inc for this resistance value and package type.

Q: Are there any package dimension differences?

A: Yes. The RC14JB100R measures 0.094" Dia x 0.248" L (2.40mm x 6.30mm), while the ASRM12JA100R measures 0.118" Dia x 0.354" L (3.00mm x 9.00mm). Both are axial packages suitable for through-hole mounting, though the substitute is slightly larger.

Q: Do both resistors meet current regulatory standards?

A: Yes. Both the RC14JB100R and ASRM12JA100R are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.