RNF18FAD20R0 Equivalent & Substitute Parts

Part Overview

The RNF18FAD20R0 is a 20 Ohm ±1% metal film axial through-hole resistor rated at 0.125W (1/8W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety construction, operating across -55°C to 155°C. The part is Active status and ROHS3 compliant. Substitute parts are identified when packaging format differs or when upgraded power ratings are required while maintaining core electrical specifications.

Substiute Parts

RNF18FAD20R0

Stackpole Electronics IncIn Stock: 1074RNF18FAD20R0 Datasheet

Current PartRFQ

RNF18FTD20R0

Stackpole Electronics IncIn Stock: 6232RNF18FTD20R0 Datasheet

DirectRFQ

RNMF14FTC20R0

Stackpole Electronics IncIn Stock: 75794RNMF14FTC20R0 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by matching the following core parameters: resistance value (20 Ohms), tolerance (±1%), composition (metal film), package type (axial), operating temperature range (-55°C ~ 155°C), and compliance certifications (ROHS3).

The RNF18FAD20R0 accepts two substitute parts:

Direct Substitute (Packaging Variant): RNF18FTD20R0 maintains identical electrical specifications and physical dimensions but differs in packaging format (Cut Tape vs. Tape & Box).

Upgrade Substitute (Power Rating Enhancement): RNMF14FTC20R0 provides the same resistance, tolerance, and operating temperature range with an increased power rating (0.25W vs. 0.125W) and improved temperature coefficient (±50ppm/°C vs. ±100ppm/°C), with negligible dimensional difference (0.070" Dia vs. 0.071" Dia).

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and ROHS3 compliance. RNF18FTD20R0 is a direct electrical and mechanical equivalent, differing only in packaging format (Cut Tape). Selection between Tape & Box and Cut Tape depends on assembly process requirements and inventory management practices.

RNMF14FTC20R0 is suitable for applications requiring higher power dissipation capacity (0.25W vs. 0.125W) while maintaining the same 20 Ohm resistance and ±1% tolerance. The improved temperature coefficient (±50ppm/°C) provides enhanced stability. Physical dimensions are nearly identical, with negligible diameter difference (0.070" vs. 0.071"), ensuring compatibility in standard axial component footprints.

Frequently Asked Questions (FAQ)

Q: Can RNF18FTD20R0 replace RNF18FAD20R0 directly? A: Yes. Both parts are electrically and mechanically identical. The difference is packaging format: RNF18FTD20R0 is supplied in Cut Tape (CT) while RNF18FAD20R0 is supplied in Tape & Box (TB). Selection depends on assembly line requirements.

Q: When should RNMF14FTC20R0 be used instead of RNF18FAD20R0? A: RNMF14FTC20R0 is appropriate when circuit design requires higher power dissipation (0.25W vs. 0.125W) or when improved temperature stability (±50ppm/°C vs. ±100ppm/°C) is necessary. The 20 Ohm resistance and ±1% tolerance remain identical.

Q: Are there dimensional compatibility concerns with RNMF14FTC20R0? A: Dimensional differences are minimal. RNMF14FTC20R0 has a diameter of 0.070" compared to 0.071" for RNF18FAD20R0, a 0.001" difference. Both maintain 0.130" length. Standard axial component PCB footprints accommodate both without modification.

Q: Do all three parts meet the same compliance requirements? A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

Q: What is the inventory availability difference? A: RNF18FAD20R0 has 1028 pcs in stock, RNF18FTD20R0 has 6139 pcs, and RNMF14FTC20R0 has 75778 pcs available. Availability should be considered for supply chain planning.