PRNF14FTD20K0 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD20K0 is a 20 kOhms ±1% metal film axial through-hole resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component is part of the RNF series and maintains Active product status. The part is ROHS3 compliant and suitable for applications requiring flame-retardant, safety-rated resistive elements across the operating temperature range of -55°C to 155°C.

Equivalent and substitute parts are identified based on matching electrical specifications (resistance value and tolerance), power rating compatibility, composition type, and mechanical form factor. Alternative sources and packaging configurations are available to support procurement flexibility and supply chain continuity.

Substiute Parts

PRNF14FTD20K0

Stackpole Electronics IncIn Stock: 1085PRNF14FTD20K0 Datasheet

Current PartRFQ

RNF14FAD20K0

Stackpole Electronics IncIn Stock: 1102RNF14FAD20K0 Datasheet

DirectRFQ

RNF14FTD20K0

Stackpole Electronics IncIn Stock: 93991RNF14FTD20K0 Datasheet

DirectRFQ

CMF5520K000BEEB

Vishay DaleIn Stock: 6494CMF5520K000BEEB Datasheet

UpgradeRFQ

CMF5520K000BEEK

Vishay DaleIn Stock: 879CMF5520K000BEEK Datasheet

UpgradeRFQ

CMF5520K000BHEB

Vishay DaleIn Stock: 2380CMF5520K000BHEB Datasheet

UpgradeRFQ

CMF5520K000FHEB

Vishay DaleIn Stock: 10038CMF5520K000FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalents maintain identical electrical specifications (20 kOhms ±1%, 0.25W) and differ only in packaging format or supplier device package configuration. These parts are interchangeable in applications where the original PRNF14FTD20K0 is specified.

Upgrade Alternatives provide enhanced electrical performance through improved tolerance (±0.1% vs ±1%), higher power rating (0.5W vs 0.25W), lower temperature coefficient (±25ppm/°C or ±50ppm/°C vs ±100ppm/°C), and extended operating temperature range (-55°C to 175°C vs -55°C to 155°C). These parts are manufactured by Vishay Dale under the CMF series and include moisture-resistant features. Upgrade alternatives are suitable for applications requiring tighter tolerance control, higher thermal stability, or increased power dissipation capability.

Key substitution parameters:

• Resistance value: 20 kOhms (fixed)
• Tolerance: ±1% minimum (±0.1% acceptable for upgrades)
• Power rating: 0.25W minimum (0.5W acceptable for upgrades)
• Composition: Metal Film (required)
• Package: Axial (required)
• Temperature range: -55°C minimum, 155°C minimum (175°C acceptable for upgrades)

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Selection: RNF14FAD20K0 and RNF14FTD20K0 are direct electrical equivalents of PRNF14FTD20K0. Selection between these three Stackpole parts depends on packaging requirements. RNF14FTD20K0 in Cut Tape format offers the highest inventory availability (93917 Pcs) and is suitable for high-volume production environments. RNF14FAD20K0 in Tape & Box format provides an alternative for lower-volume or mixed-packaging requirements. PRNF14FTD20K0 in Tape & Reel format is optimized for automated assembly processes.

Upgrade Alternative Selection: CMF5520K000FHEB (Vishay Dale, ±1% tolerance, 0.5W) is the direct upgrade path when higher power dissipation is required while maintaining the original ±1% tolerance specification. This part is ROHS3 compliant and provides extended operating temperature range to 175°C with improved temperature coefficient stability (±50ppm/°C).

CMF5520K000BEEB and CMF5520K000BHEB offer enhanced tolerance (±0.1%) for applications requiring tighter resistance control. CMF5520K000BEEB features the lowest temperature coefficient (±25ppm/°C) and is suitable for precision analog circuits. CMF5520K000BHEB provides a balanced specification with ±50ppm/°C temperature coefficient.

All substitute parts maintain ROHS3 compliance, axial package configuration, and metal film composition. All parts are rated for -55°C minimum operating temperature and support the full thermal range of the original specification.

Frequently Asked Questions (FAQ)

Q: Can RNF14FAD20K0 replace PRNF14FTD20K0 in my design? A: Yes. Both parts are Stackpole Electronics Inc RNF series resistors with identical electrical specifications (20 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C). The difference is packaging format: PRNF14FTD20K0 uses Tape & Reel while RNF14FAD20K0 uses Tape & Box. Selection depends on your assembly process requirements.

Q: What is the difference between Stackpole RNF parts and Vishay Dale CMF parts? A: Stackpole RNF parts maintain the original ±1% tolerance and 0.25W power rating. Vishay Dale CMF parts are upgrades offering higher power rating (0.5W), tighter tolerance options (±0.1% or ±1%), lower temperature coefficients (±25ppm/°C or ±50ppm/°C), and extended operating temperature to 175°C. All parts are metal film axial resistors with flame-retardant coatings and ROHS3 compliance.

Q: Can I use CMF5520K000FHEB as a direct replacement? A: CMF5520K000FHEB is electrically compatible (20 kOhms ±1%) and mechanically compatible (axial package). It provides higher power rating (0.5W vs 0.25W) and extended temperature range (-55°C to 175°C vs -55°C to 155°C). It is suitable for applications where the original PRNF14FTD20K0 is specified, with the added benefit of improved thermal performance.

Q: Which packaging format should I select? A: Tape & Reel (TR) format is standard for automated pick-and-place assembly. Cut Tape (CT) format is suitable for manual assembly or lower-volume production. Tape & Box (TB) format provides an alternative packaging option. Bulk packaging is available for non-automated assembly environments. All formats contain the same electrical component.

Q: Are all substitute parts ROHS3 compliant? A: Yes. PRNF14FTD20K0, RNF14FAD20K0, RNF14FTD20K0, and all Vishay Dale CMF series parts listed are ROHS3 compliant. All parts are REACH unaffected and classified as EAR99 for export control purposes.

Q: What is the temperature coefficient difference and when does it matter? A: Temperature coefficient indicates resistance change per degree Celsius. PRNF14FTD20K0 has ±100ppm/°C. Vishay Dale CMF parts offer ±25ppm/°C or ±50ppm/°C. Lower temperature coefficients reduce resistance drift in temperature-sensitive applications such as precision measurement circuits, oscillators, or temperature-compensated networks. Standard applications typically tolerate ±100ppm/°C.