RNF12FTC4K32 Equivalent & Substitute Parts

Part Overview

The RNF12FTC4K32 is a 4.32 kOhms ±1% metal film axial through-hole resistor rated at 0.5W (1/2W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-grade construction, designed for applications requiring precision resistance with thermal stability across industrial temperature ranges. The part maintains Active product status with 888 units in current inventory. Substitute parts are identified to address supply chain continuity, packaging format preferences, or specific application requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF12FTC4K32

Stackpole Electronics IncIn Stock: 911RNF12FTC4K32 Datasheet

Current PartRFQ

CMF554K3200FHEB

Vishay DaleIn Stock: 3314CMF554K3200FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC4K32 is determined by the following critical parameters:

• Electrical Specifications: Resistance value (4.32 kOhms), tolerance (±1%), and power rating (0.5W) must be identical
• Composition & Construction: Metal film composition with flame retardant coating and safety features required
• Temperature Performance: Temperature coefficient (±50ppm/°C) and minimum operating range compatibility
• Package Configuration: Axial through-hole package with 2 terminations
• Regulatory Compliance: ROHS3 compliance and EAR99 classification maintained

The CMF554K3200FHEB from Vishay Dale meets all substitution criteria. While packaging format differs (Cut Tape vs. Tape & Reel) and physical dimensions vary slightly, the electrical performance and functional characteristics remain equivalent for circuit-level applications.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC4K32 and CMF554K3200FHEB maintain Active product status and full ROHS3 compliance. The CMF554K3200FHEB provides an extended operating temperature range to 175°C (versus 155°C for the RNF12FTC4K32) and includes moisture-resistant features. Selection between these parts should be based on packaging requirements (Tape & Reel versus Cut Tape format), inventory availability, and thermal environment specifications. Both components satisfy identical electrical and regulatory requirements for standard circuit applications.

Frequently Asked Questions (FAQ)

Q: Can CMF554K3200FHEB replace RNF12FTC4K32 in all applications?

A: Yes, provided the application operates within the RNF12FTC4K32 temperature range (-55°C to 155°C). The CMF554K3200FHEB is electrically and mechanically equivalent with identical resistance, tolerance, power rating, and composition specifications.

Q: What is the difference in physical dimensions between these parts?

A: The RNF12FTC4K32 measures 0.108" diameter × 0.344" length (2.75mm × 8.75mm). The CMF554K3200FHEB measures 0.090" diameter × 0.240" length (2.29mm × 6.10mm). Both are axial through-hole components; dimensional differences may affect PCB layout and mechanical clearance considerations.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) and Cut Tape (CT) packaging formats are supply chain and handling specifications only. Electrical performance and component characteristics remain identical regardless of packaging format.

Q: Are both parts suitable for high-reliability applications?

A: Both components feature flame retardant coating, safety-grade construction, and ROHS3 compliance. The CMF554K3200FHEB includes additional moisture-resistant features. Selection depends on specific application environmental requirements and thermal specifications.

Q: What is the significance of the ±50ppm/°C temperature coefficient?

A: This specification indicates the resistance value will change by approximately 50 parts per million for each degree Celsius change in operating temperature. Both parts maintain identical temperature coefficient performance, ensuring consistent resistance stability across the operating range.