RC14KT100R Equivalent & Substitute Parts

Part Overview

The RC14KT100R is a 100 Ohm ±10% 1/4W axial through-hole 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 equivalent substitute parts necessary for ongoing applications and new designs requiring compatible specifications.

Substiute Parts

RC14KT100R

Stackpole Electronics IncIn Stock: 954RC14KT100R Datasheet

Current PartRFQ

ASRM12JA100R

Stackpole Electronics IncIn Stock: 977ASRM12JA100R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RC14KT100R is determined by the following critical parameters:

• Resistance Value: Must be 100 Ohms
• Package Configuration: Must be Axial through-hole
• Tolerance: Acceptable range ±5% to ±10%
• Power Rating: Minimum 0.25W; higher ratings acceptable
• Operating Temperature Range: Must encompass or exceed -55°C to 125°C
• Compliance: RoHS3 compliance required

The ASRM12JA100R meets these substitution criteria while offering enhanced specifications including improved tolerance (±5%), higher power rating (0.5W), extended temperature range (-55°C to 155°C), and metal film composition with flame retardant coating.

Parameter Comparison

Engineering Selection Recommendations

The ASRM12JA100R is the qualified substitute for the obsolete RC14KT100R. Both components are manufactured by Stackpole Electronics Inc and maintain full RoHS3 and REACH compliance. The substitute provides superior specifications including tighter tolerance (±5% versus ±10%), higher power dissipation capability (0.5W versus 0.25W), and extended operating temperature range (-55°C to 155°C versus -55°C to 125°C). The metal film composition with flame retardant coating offers enhanced reliability compared to carbon composition construction. Both components maintain axial through-hole packaging and pulse withstanding characteristics, ensuring direct functional compatibility in existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the ASRM12JA100R directly replace the RC14KT100R in existing designs?

A: Yes. Both components share identical resistance values (100 Ohms), axial through-hole packaging, and operating temperature floor (-55°C). The substitute meets or exceeds all critical electrical and mechanical parameters of the main part.

Q: What are the key differences between these two resistors?

A: The primary differences are composition (carbon composition versus metal film), tolerance (±10% versus ±5%), power rating (0.25W versus 0.5W), and maximum operating temperature (125°C versus 155°C). The ASRM12JA100R provides enhanced performance specifications across all parameters.

Q: Are there any compatibility concerns with the different compositions?

A: No compatibility concerns exist for standard circuit applications. The metal film composition of the ASRM12JA100R provides superior frequency response and lower noise characteristics compared to carbon composition, making it suitable for all applications where the RC14KT100R was used.

Q: Does the higher power rating of the substitute create any issues?

A: No. A higher power rating is a beneficial upgrade that provides additional thermal margin and reliability. The component will operate safely in circuits designed for the lower-rated original part.

Q: Are both components RoHS compliant?

A: Yes. Both the RC14KT100R and ASRM12JA100R are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.