RNF12FTC182R Equivalent & Substitute Parts

Part Overview

The RNF12FTC182R is a 182 Ohm ±1% metal film through-hole resistor rated at 0.5W (1/2W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component is classified as Active product status with flame retardant coating and safety features suitable for industrial and commercial applications. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.

Substiute Parts

RNF12FTC182R

Stackpole Electronics IncIn Stock: 1058RNF12FTC182R Datasheet

Current PartRFQ

CMF55182R00FHEB

Vishay DaleIn Stock: 2017CMF55182R00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC182R is determined by the following critical parameters:

• Resistance value: 182 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial Through-Hole (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Regulatory compliance: ROHS3 Compliant and REACH Unaffected (minimum requirement)

The CMF55182R00FHEB from Vishay Dale meets all substitution criteria with identical electrical specifications and equivalent mechanical compatibility in axial package format.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC182R and CMF55182R00FHEB are Active status components meeting ROHS3 compliance and REACH unaffected requirements. The CMF55182R00FHEB provides an extended operating temperature range to 175°C compared to 155°C for the RNF12FTC182R, with additional moisture resistant features. All electrical parameters including resistance value, tolerance, power rating, and temperature coefficient are identical. Physical dimensions differ slightly (CMF55 is more compact), which may be relevant for space-constrained applications. Both components are suitable for direct substitution in circuits where the RNF12FTC182R is specified.

Frequently Asked Questions (FAQ)

Q: Can CMF55182R00FHEB replace RNF12FTC182R in all applications?

A: Yes, the CMF55182R00FHEB meets all critical electrical specifications (182 Ohms ±1%, 0.5W, ±50ppm/°C) and maintains axial package compatibility. The extended temperature range and moisture resistant features of the CMF55 provide equivalent or superior performance characteristics.

Q: Are there physical dimension differences between these parts?

A: Yes. The RNF12FTC182R measures 0.108" Dia x 0.344" L (2.75mm x 8.75mm), while the CMF55182R00FHEB measures 0.090" Dia x 0.240" L (2.29mm x 6.10mm). The CMF55 is more compact and may require PCB layout verification for space-constrained designs.

Q: Do both parts meet the same regulatory requirements?

A: Yes, both components are ROHS3 Compliant and REACH Unaffected, meeting equivalent regulatory standards for industrial and commercial applications.

Q: What is the difference in operating temperature range?

A: The RNF12FTC182R operates from -55°C to 155°C, while the CMF55182R00FHEB operates from -55°C to 175°C. The CMF55 provides a 20°C higher maximum operating temperature, beneficial for high-temperature environments.

Q: Are packaging formats compatible?

A: Both components use axial through-hole package format with 2 terminations, ensuring mechanical and electrical compatibility on standard PCB designs.