PRNF14FTD46K4 Equivalent & Substitute Parts

Part Overview

The PRNF14FTD46K4 is a 46.4 kOhms ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial configuration, manufactured by Stackpole Electronics Inc. This component is part of the active RNF series and is supplied in Tape & Reel packaging. The part is ROHS3 compliant and suitable for applications requiring precision resistive elements with flame retardant coating and safety features. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical compatibility, and packaging availability.

Substiute Parts

PRNF14FTD46K4

Stackpole Electronics IncIn Stock: 1046PRNF14FTD46K4 Datasheet

Current PartRFQ

RNF14FAD46K4

Stackpole Electronics IncIn Stock: 1124RNF14FAD46K4 Datasheet

DirectRFQ

RNF14FTD46K4

Stackpole Electronics IncIn Stock: 25485RNF14FTD46K4 Datasheet

DirectRFQ

CMF5546K400FHEB

Vishay DaleIn Stock: 2784CMF5546K400FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PRNF14FTD46K4 are classified into two categories based on electrical and mechanical parameter alignment:

Direct Equivalents (Same Electrical Specifications): Direct substitutes maintain identical resistance value (46.4 kOhms), tolerance (±1%), power rating (0.25W), composition (metal film), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). These parts differ only in packaging format (Tape & Box or Cut Tape versus Tape & Reel) and inventory availability. Direct equivalents include RNF14FAD46K4 and RNF14FTD46K4.

Upgrade Substitute (Enhanced Power Rating): The CMF5546K400FHEB from Vishay Dale provides upgraded specifications while maintaining the same resistance value and tolerance. This part features a higher power rating (0.5W versus 0.25W), improved temperature coefficient (±50ppm/°C versus ±100ppm/°C), extended operating temperature range (-55°C to 175°C versus -55°C to 155°C), and additional moisture-resistant features. The upgrade substitute is suitable for applications requiring higher power dissipation or enhanced environmental performance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution: RNF14FAD46K4 and RNF14FTD46K4 are suitable direct replacements for PRNF14FTD46K4 in applications where packaging format flexibility is acceptable. All three parts maintain identical electrical performance and are ROHS3 compliant with REACH unaffected status. Selection between these direct equivalents depends on procurement requirements and packaging availability.

For Upgraded Performance: CMF5546K400FHEB from Vishay Dale is applicable in designs where higher power dissipation capability is beneficial or where improved temperature stability is required. The doubled power rating (0.5W versus 0.25W) and superior temperature coefficient (±50ppm/°C versus ±100ppm/°C) provide design margin in thermally demanding or precision-critical applications. The extended operating temperature range to 175°C accommodates higher ambient conditions. This upgrade maintains ROHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can RNF14FAD46K4 replace PRNF14FTD46K4 directly? A: Yes. Both parts share identical electrical specifications (46.4 kOhms ±1%, 0.25W, metal film composition, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range). The difference is packaging format: RNF14FAD46K4 is supplied in Tape & Box format while PRNF14FTD46K4 is Tape & Reel. Electrical performance and mechanical compatibility are equivalent.

Q: What is the difference between RNF14FTD46K4 and PRNF14FTD46K4? A: These parts are electrically and mechanically identical. Both are Stackpole Electronics RNF series 46.4 kOhms ±1% 0.25W axial resistors. The primary distinction is packaging: PRNF14FTD46K4 is supplied in Tape & Reel while RNF14FTD46K4 is Cut Tape format.

Q: When should CMF5546K400FHEB be used instead of PRNF14FTD46K4? A: CMF5546K400FHEB is selected when applications require higher power dissipation (0.5W versus 0.25W), improved temperature stability (±50ppm/°C versus ±100ppm/°C), or operation at temperatures exceeding 155°C up to 175°C. The upgrade substitute maintains the same 46.4 kOhms resistance and ±1% tolerance, ensuring electrical compatibility while providing enhanced performance margins.

Q: Are all substitute parts ROHS3 compliant? A: Yes. PRNF14FTD46K4, RNF14FAD46K4, RNF14FTD46K4, and CMF5546K400FHEB are all ROHS3 compliant with REACH unaffected status, meeting regulatory requirements for restricted substance use.

Q: Does package format affect electrical performance? A: No. Tape & Reel (TR), Tape & Box (TB), and Cut Tape (CT) packaging formats are logistics and handling variations only. Electrical specifications, mechanical dimensions, and performance characteristics remain identical across packaging options for direct equivalent parts.