RNF18FTC180R Equivalent & Substitute Parts

Part Overview

The RNF18FTC180R is a 180 Ohms ±1% metal film through-hole resistor rated at 0.125W (1/8W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety construction, designed for applications requiring precision resistance values with tight tolerance specifications. The part maintains Active product status with ROHS3 compliance and is currently in stock inventory. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit higher power ratings within the same electrical and mechanical specifications.

Substiute Parts

RNF18FTC180R

Stackpole Electronics IncIn Stock: 842RNF18FTC180R Datasheet

Current PartRFQ

RNMF14FTC180R

Stackpole Electronics IncIn Stock: 10753RNMF14FTC180R Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

The RNMF14FTC180R qualifies as a direct substitute based on the following critical parameters:

Electrical Equivalence: Both parts maintain identical resistance value (180 Ohms) and tolerance (±1%), ensuring functional compatibility in circuits designed for the RNF18FTC180R.

Material & Construction: Both utilize metal film composition with flame retardant coating and safety features, preserving the electrical and environmental characteristics of the original specification.

Thermal Performance: Identical temperature coefficient (±50ppm/°C) and operating temperature range (-55°C ~ 155°C) ensure consistent performance across thermal conditions.

Mechanical Compatibility: Both parts use axial package configuration with equivalent physical dimensions (0.071" Dia x 0.130" L for RNF18FTC180R; 0.070" Dia x 0.130" L for RNMF14FTC180R), allowing direct board-level substitution.

Regulatory Compliance: Both parts maintain ROHS3 compliance, REACH Unaffected status, and identical ECCN/HTSUS classifications.

Substitution Distinction: The RNMF14FTC180R provides an upgrade path with increased power rating (0.25W vs. 0.125W), suitable for applications where higher power dissipation capacity is beneficial or required.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF18FTC180R and RNMF14FTC180R maintain Active product status with full regulatory compliance under ROHS3 and REACH standards. Selection between these parts is determined by circuit power dissipation requirements. The RNF18FTC180R is specified for applications with power dissipation up to 0.125W, while the RNMF14FTC180R accommodates applications requiring up to 0.25W dissipation. Where circuit analysis confirms power dissipation remains below 0.125W, either part satisfies the specification. Where power dissipation approaches or exceeds 0.125W but remains below 0.25W, the RNMF14FTC180R provides appropriate margin. Both parts are suitable for production use with equivalent supply chain availability and compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can RNMF14FTC180R directly replace RNF18FTC180R in existing designs?

A: Yes. Both parts share identical electrical specifications (180 Ohms ±1%), thermal characteristics (±50ppm/°C, -55°C ~ 155°C), and axial package configuration. Physical dimensions are equivalent, enabling direct board-level substitution without layout modification.

Q: What is the primary difference between these parts?

A: The RNMF14FTC180R provides a higher power rating (0.25W vs. 0.125W). This upgrade is suitable for applications where circuit analysis indicates power dissipation exceeds the original 0.125W specification or where additional thermal margin is required.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both RNF18FTC180R and RNMF14FTC180R maintain ROHS3 compliance and REACH Unaffected status, meeting current regulatory standards for electronic component manufacturing and use.

Q: Do these parts have identical temperature performance?

A: Yes. Both parts exhibit identical temperature coefficient (±50ppm/°C) and operating temperature range (-55°C ~ 155°C), ensuring equivalent performance across thermal conditions.

Q: What packaging formats are available for these parts?

A: RNF18FTC180R is supplied in Tape & Reel (TR) format. RNMF14FTC180R is supplied in Cut Tape (CT) format. Both are axial through-hole components suitable for automated assembly processes.