RNF12FTC7K50 Equivalent & Substitute Parts

Part Overview

The RNF12FTC7K50 is a 7.5 kOhms ±1% metal film through-hole resistor rated at 0.5W (1/2W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-grade construction suitable for industrial and consumer applications requiring precision resistance values. The part maintains Active product status with 1095 units in current inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to supply constraints, design flexibility, or application-specific packaging preferences.

Substiute Parts

RNF12FTC7K50

Stackpole Electronics IncIn Stock: 1191RNF12FTC7K50 Datasheet

Current PartRFQ

CMF557K5000FHEB

Vishay DaleIn Stock: 6200CMF557K5000FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC7K50 is determined by the following critical parameters:

• Resistance value: 7.5 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)
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected (exact match required)

The CMF557K5000FHEB from Vishay Dale meets all substitution criteria. Both parts share identical electrical specifications and regulatory certifications. Mechanical dimensions differ slightly due to manufacturing tolerances within the axial package family, but both conform to standard axial resistor form factors suitable for PCB assembly.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC7K50 and CMF557K5000FHEB are Active status components with full ROHS3 compliance and REACH Unaffected certification, meeting current regulatory requirements for industrial and commercial applications. The CMF557K5000FHEB provides an extended operating temperature range to 175°C compared to 155°C for the RNF12FTC7K50, offering additional thermal margin in high-temperature environments. The CMF557K5000FHEB includes moisture-resistant features in addition to flame retardant coating. Selection between these parts should be based on packaging format availability (Tape & Reel versus Cut Tape), inventory requirements, and thermal operating conditions specific to the application.

Frequently Asked Questions (FAQ)

Q: Can the CMF557K5000FHEB replace the RNF12FTC7K50 in existing designs?

A: Yes. Both parts share identical resistance (7.5 kOhms), tolerance (±1%), power rating (0.5W), composition (metal film), and temperature coefficient (±50ppm/°C). Both are axial through-hole components with equivalent electrical performance and regulatory compliance.

Q: What are the physical dimension differences between these parts?

A: The RNF12FTC7K50 measures 0.108" diameter × 0.344" length (2.75mm × 8.75mm). The CMF557K5000FHEB measures 0.090" diameter × 0.240" length (2.29mm × 6.10mm). Both conform to standard axial resistor form factors and are compatible with standard PCB through-hole assembly processes.

Q: Does the extended temperature range of the CMF557K5000FHEB affect substitution suitability?

A: No. The CMF557K5000FHEB's extended operating range (-55°C ~ 175°C versus -55°C ~ 155°C) represents a superset capability. It is suitable for all applications within the RNF12FTC7K50's temperature specification and provides additional margin for higher-temperature environments.

Q: Are there packaging format considerations for substitution?

A: Yes. The RNF12FTC7K50 is supplied in Tape & Reel (TR) format, while the CMF557K5000FHEB is supplied in Cut Tape (CT) format. Packaging selection depends on assembly line requirements and volume handling procedures.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the RNF12FTC7K50 and CMF557K5000FHEB are ROHS3 Compliant and REACH Unaffected, meeting current environmental and hazardous substance regulations.