RNF12FTC267K Equivalent & Substitute Parts

Part Overview

The RNF12FTC267K is a 267 kOhms ±1% 0.5W through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for applications requiring precision resistance values in compact axial packages. The part is currently active in production with ROHS3 compliance. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter range.

Substiute Parts

RNF12FTC267K

Stackpole Electronics IncIn Stock: 1173RNF12FTC267K Datasheet

Current PartRFQ

CMF55267K00FHEB

Vishay DaleIn Stock: 6234CMF55267K00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC267K is determined by strict equivalence across the following critical parameters:

• Resistance value: 267 kOhms (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)
• Compliance: ROHS3 Compliant (minimum requirement)

The CMF55267K00FHEB from Vishay Dale meets all substitution criteria. Both parts share identical electrical specifications and axial package configuration. Physical dimensions differ slightly, but both maintain standard axial form factor compatibility with typical PCB layouts and component spacing.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC267K and CMF55267K00FHEB are active production parts with ROHS3 compliance and REACH unaffected status. Selection between these parts is based on application-specific requirements:

The RNF12FTC267K is suitable for standard applications within the -55°C to 155°C operating range with standard moisture resistance requirements.

The CMF55267K00FHEB provides extended operating temperature capability to 175°C and includes moisture resistant construction, making it applicable for environments with elevated temperature exposure or higher humidity conditions. The CMF55267K00FHEB also features a more compact physical profile while maintaining identical electrical performance.

Both parts carry identical electrical specifications and are mechanically compatible with standard axial component footprints. Selection should account for thermal environment, available board space, and moisture exposure conditions specific to the application.

Frequently Asked Questions (FAQ)

Q: Can CMF55267K00FHEB replace RNF12FTC267K in all applications?

A: Yes, from an electrical standpoint. Both parts share identical resistance, tolerance, power rating, and temperature coefficient specifications. The CMF55267K00FHEB operates across a wider temperature range (-55°C to 175°C versus -55°C to 155°C) and includes moisture resistant construction. Physical dimensions differ slightly, but both maintain standard axial package compatibility. Verify PCB layout constraints if space is limited.

Q: What are the key differences between these parts?

A: The primary differences are physical dimensions and operating temperature range. The CMF55267K00FHEB is more compact (0.090" diameter vs 0.108" diameter) and rated to 175°C versus 155°C. The CMF55267K00FHEB also includes moisture resistant features. Electrical performance is identical.

Q: Are both parts ROHS3 compliant?

A: Yes, both RNF12FTC267K and CMF55267K00FHEB are ROHS3 compliant and REACH unaffected.

Q: What is the tolerance specification for these resistors?

A: Both parts are specified at ±1% tolerance, suitable for precision circuit applications requiring tight resistance value control.

Q: Can these axial resistors be used interchangeably on the same PCB?

A: Electrically, yes. Mechanically, verify that the PCB footprint and component spacing accommodate the dimensional differences. The CMF55267K00FHEB is physically smaller and may require layout verification in space-constrained designs.