RC14JT100R Equivalent & Substitute Parts

Part Overview

The RC14JT100R is a 100 Ohm, ±5% tolerance, 1/4W (0.25W) 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 product is currently obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

RC14JT100R

Stackpole Electronics IncIn Stock: 1038RC14JT100R Datasheet

Current PartRFQ

ASRM12JA100R

Stackpole Electronics IncIn Stock: 977ASRM12JA100R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC14JT100R is determined by the following critical parameters:

• Resistance Value: Must be 100 Ohms
• Tolerance: Must be ±5% or tighter
• Package Configuration: Must be axial through-hole
• Minimum Power Rating: Must equal or exceed 0.25W
• Operating Temperature Range: Must encompass or exceed -55°C to 125°C
• Regulatory Compliance: Must maintain ROHS3 compliance

The ASRM12JA100R qualifies as a manufacturer-recommended substitute. While it features a higher power rating (0.5W vs. 0.25W) and different composition (metal film vs. carbon composition), it satisfies all critical substitution criteria: identical resistance and tolerance, axial package configuration, superior temperature range (-55°C to 155°C), and equivalent regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The ASRM12JA100R is the manufacturer-recommended substitute for the obsolete RC14JT100R. Both components are ROHS3 compliant and manufactured by Stackpole Electronics Inc, ensuring regulatory consistency and supply chain continuity.

The ASRM12JA100R maintains active product status, providing long-term availability and production support. The increased power rating (0.5W vs. 0.25W) and extended operating temperature range (-55°C to 155°C) provide enhanced performance margins without compromising circuit compatibility. Both components feature pulse withstanding capability and identical electrical specifications (100 Ohms, ±5% tolerance).

The axial package configuration remains unchanged, supporting direct mechanical and electrical substitution in existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the ASRM12JA100R directly replace the RC14JT100R in existing designs?

A: Yes. Both components share identical resistance values (100 Ohms), tolerance (±5%), and axial package configuration. The ASRM12JA100R's higher power rating (0.5W vs. 0.25W) and extended temperature range provide enhanced performance margins without introducing compatibility issues.

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

A: The RC14JT100R uses carbon composition construction, while the ASRM12JA100R employs metal film construction. The ASRM12JA100R also features a higher power rating and extended operating temperature range. Both maintain identical electrical specifications and regulatory compliance.

Q: Are there any package or footprint differences?

A: Both resistors use axial through-hole packaging. Physical dimensions differ slightly (RC14JT100R: 0.094" Dia x 0.248" L; ASRM12JA100R: 0.118" Dia x 0.354" L), but standard axial component spacing accommodates both configurations without PCB redesign.

Q: Does the ASRM12JA100R maintain the same regulatory compliance?

A: Yes. Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99, ensuring equivalent regulatory status for procurement and deployment.

Q: Why is the RC14JT100R obsolete?

A: The RC14JT100R has been discontinued by the manufacturer. The ASRM12JA100R represents the active, manufacturer-recommended alternative for ongoing production and design support.