RNF14FAD2R21 Equivalent & Substitute Parts

Part Overview

The RNF14FAD2R21 is a 2.21 Ohm ±1% metal film through-hole resistor rated at 0.25W (1/4W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-rated construction, designed for applications requiring precision resistance with enhanced thermal and environmental stability. The part maintains Active product status with full RoHS3 compliance and REACH unaffected classification. Substitute parts are identified when packaging format differs while all electrical and mechanical specifications remain identical.

Substiute Parts

RNF14FAD2R21

Stackpole Electronics IncIn Stock: 952RNF14FAD2R21 Datasheet

Current PartRFQ

RNF14FTD2R21

Stackpole Electronics IncIn Stock: 960RNF14FTD2R21 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The RNF14FAD2R21 and RNF14FTD2R21 are direct electrical and mechanical equivalents within the Stackpole RNF series. Both parts share identical electrical specifications: 2.21 Ohm resistance value, ±1% tolerance, 0.25W power rating, metal film composition, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Physical dimensions, termination count, and axial package configuration are identical. The substitution is based solely on packaging format differentiation: RNF14FAD2R21 is supplied in Tape & Box (TB) format, while RNF14FTD2R21 is supplied in Tape & Reel (TR) format. Both maintain identical component-level performance and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Selection between RNF14FAD2R21 and RNF14FTD2R21 is determined by procurement and assembly requirements rather than electrical performance. Both parts are Active status components with full ROHS3 compliance and REACH unaffected classification, ensuring regulatory compliance for current and future applications. The Tape & Box (TB) format of RNF14FAD2R21 is suitable for manual assembly, small-batch production, or applications requiring individual component handling. The Tape & Reel (TR) format of RNF14FTD2R21 is optimized for automated pick-and-place assembly and high-volume manufacturing environments. Component-level electrical and thermal performance is identical across both packaging options.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD2R21 replace RNF14FAD2R21 in circuit design? A: Yes. Both parts are electrically and mechanically identical. The 2.21 Ohm resistance, ±1% tolerance, 0.25W power rating, temperature coefficient, and operating range are identical. Substitution is valid from a circuit performance standpoint.

Q: What is the difference between Tape & Box and Tape & Reel packaging? A: Tape & Box (TB) format supplies components in tape spools packaged within protective boxes, suitable for manual handling and smaller quantity orders. Tape & Reel (TR) format supplies components on continuous tape reels, optimized for automated assembly equipment and high-volume production runs.

Q: Are both parts RoHS3 compliant? A: Yes. Both RNF14FAD2R21 and RNF14FTD2R21 maintain ROHS3 compliance and REACH unaffected status.

Q: Do physical dimensions differ between the two parts? A: No. Both parts share identical axial package dimensions of 0.093" diameter × 0.250" length (2.35mm × 6.35mm).

Q: Which part should be selected for automated assembly? A: RNF14FTD2R21 in Tape & Reel format is designed for automated pick-and-place assembly systems.

Q: Which part should be selected for manual assembly or prototyping? A: RNF14FAD2R21 in Tape & Box format is suitable for manual assembly, prototyping, and small-batch applications.