RNF14FTC73K2 Equivalent & Substitute Parts

Part Overview

The RNF14FTC73K2 is a 73.2 kOhms ±1% 0.25W (1/4W) through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for general-purpose applications requiring precision resistance values with tight tolerance specifications. The part is currently active in production with 1105 units in stock. Substitute parts may be required due to supply constraints, packaging preferences, or application-specific performance requirements such as higher power ratings or enhanced operating temperature ranges.

Substiute Parts

RNF14FTC73K2

Stackpole Electronics IncIn Stock: 1178RNF14FTC73K2 Datasheet

Current PartRFQ

CMF5573K200FHEB

Vishay DaleIn Stock: 1773CMF5573K200FHEB Datasheet

UpgradeRFQ

CMF5073K200FHEB

Vishay DaleIn Stock: 1173CMF5073K200FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the RNF14FTC73K2 is determined by the following critical parameters that must remain constant or be compatible with the application:

Fixed Parameters (Must Match):

• Resistance value: 73.2 kOhms
• Tolerance: ±1%
• Composition: Metal Film
• Package type: Axial
• Temperature coefficient: ±50ppm/°C

Variable Parameters (Allowable Variation):

• Power rating: May be equal or higher (0.25W or greater)
• Operating temperature range: May be equal or extended
• Physical dimensions: May vary within axial package constraints
• Packaging format: May differ (Tape & Reel vs. Cut Tape)
• Manufacturer: Alternative qualified manufacturers acceptable

The substitute parts listed below maintain all fixed parameters while offering variations in power rating, operating temperature range, and packaging format. Both substitutes are manufactured by Vishay Dale and comply with ROHS3 standards.

Parameter Comparison

Engineering Selection Recommendations

CMF5573K200FHEB (Upgrade Option): This substitute provides a higher power rating of 0.5W (1/2W) compared to the original 0.25W specification. The extended operating temperature range (-55°C ~ 175°C) and moisture-resistant features offer enhanced performance margins. This part is suitable for applications requiring increased thermal headroom or operation in moisture-prone environments. ROHS3 compliance and REACH Unaffected status maintain regulatory alignment with the original part.

CMF5073K200FHEB (MFR Recommended Option): This substitute maintains the identical 0.25W power rating and axial package type as the original RNF14FTC73K2. The extended operating temperature range (-55°C ~ 175°C) and moisture-resistant construction provide improved reliability. Physical dimensions are smaller, which may offer space advantages in compact layouts. ROHS3 compliance is maintained. Note that REACH Affected status indicates this part contains substances of concern and may require additional documentation for certain applications or regions.

Both substitutes are active products with adequate inventory availability and maintain the critical electrical parameters (resistance, tolerance, temperature coefficient, composition) required for direct functional replacement.

Frequently Asked Questions (FAQ)

Q: Can CMF5573K200FHEB replace RNF14FTC73K2 in a 0.25W application? A: Yes. The CMF5573K200FHEB is rated for 0.5W (1/2W), which exceeds the 0.25W requirement. Higher power-rated resistors are electrically compatible with lower-power applications and provide additional thermal margin.

Q: What is the difference between the two Vishay Dale substitutes? A: CMF5573K200FHEB is rated for 0.5W power, while CMF5073K200FHEB matches the original 0.25W rating. Both offer extended operating temperature ranges and moisture resistance. Physical dimensions differ, with CMF5073K200FHEB being more compact.

Q: Are the physical dimensions critical for substitution? A: Physical dimensions may be relevant depending on PCB layout constraints. Both substitutes use axial packaging compatible with through-hole mounting. Verify board spacing if component size is a design constraint.

Q: What does REACH Affected status mean for CMF5073K200FHEB? A: REACH Affected indicates the part contains substances of concern under EU REACH regulations. This may require additional compliance documentation for applications or shipments to certain regions. Verify regulatory requirements for your specific application.

Q: Are all three parts RoHS3 compliant? A: Yes. RNF14FTC73K2, CMF5573K200FHEB, and CMF5073K200FHEB are all ROHS3 compliant, meeting lead-free and hazardous substance restrictions.

Q: Can I use these substitutes interchangeably? A: Yes, for the specified resistance value (73.2 kOhms ±1%) and tolerance. Verify that your application can accommodate the packaging format differences (Tape & Reel vs. Cut Tape) and any physical dimension constraints.