RNF14FAD866R Equivalent & Substitute Parts

Part Overview

The RNF14FAD866R is a 866 Ohms ±1% 0.25W (1/4W) through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety characteristics, designed for applications requiring precision resistance values in compact form factors. The part is currently active in production with ROHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement or functional upgrade within system design constraints.

Substiute Parts

RNF14FAD866R

Stackpole Electronics IncIn Stock: 1022RNF14FAD866R Datasheet

Current PartRFQ

RNF14FTD866R

Stackpole Electronics IncIn Stock: 13584RNF14FTD866R Datasheet

DirectRFQ

CMF55866R00FHEB

Vishay DaleIn Stock: 774CMF55866R00FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FAD866R are classified based on the following substitution criteria:

Direct Substitute (Same Electrical & Mechanical Specifications):

• Resistance value: 866 Ohms
• Tolerance: ±1%
• Power rating: 0.25W (1/4W)
• Composition: Metal Film
• Package: Axial
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Compliance: ROHS3, REACH unaffected

Upgrade Substitute (Enhanced Specifications):

• Resistance value: 866 Ohms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W) — higher than main part
• Composition: Metal Film
• Package: Axial
• Temperature coefficient: ±50ppm/°C — improved stability
• Operating temperature range: -55°C ~ 175°C — extended upper limit
• Compliance: ROHS3, REACH unaffected

Parameter Comparison

Engineering Selection Recommendations

RNF14FTD866R (Direct Substitute): Use this part when direct replacement is required with identical electrical and thermal specifications. Both parts are manufactured by Stackpole Electronics Inc and maintain the same resistance, tolerance, power rating, and temperature coefficient. The primary difference is packaging format (Cut Tape vs. Tape & Box), which affects procurement and assembly logistics but not functional performance. Both parts carry ROHS3 compliance and REACH unaffected status.

CMF55866R00FHEB (Upgrade Substitute): Use this part when enhanced performance margins are acceptable or beneficial. The CMF55866R00FHEB provides doubled power dissipation capability (0.5W vs. 0.25W), improved temperature coefficient stability (±50ppm/°C vs. ±100ppm/°C), and extended operating temperature range (-55°C ~ 175°C vs. -55°C ~ 155°C). Additional moisture resistance feature is included. This upgrade maintains ROHS3 compliance and REACH unaffected status. Mechanical dimensions are comparable (0.090" Dia x 0.240" L vs. 0.093" Dia x 0.250" L), supporting board-level compatibility.

Frequently Asked Questions (FAQ)

Q: Can RNF14FTD866R replace RNF14FAD866R in all applications?

A: Yes. Both parts share identical electrical specifications (866 Ohms ±1%, 0.25W, ±100ppm/°C, -55°C ~ 155°C) and are manufactured by the same company. The only difference is packaging format (Cut Tape vs. Tape & Box). Functional performance and compliance certifications are equivalent.

Q: When should CMF55866R00FHEB be selected instead of the original part?

A: Select CMF55866R00FHEB when circuit design allows higher power dissipation capability, when improved temperature stability is required, or when extended operating temperature range (-55°C ~ 175°C) is needed. The doubled power rating (0.5W) provides additional thermal margin in high-dissipation applications.

Q: Are all three parts mechanically compatible on the same PCB?

A: Yes. All three parts use axial package configuration with comparable physical dimensions. RNF14FAD866R (0.093" Dia x 0.250" L) and RNF14FTD866R (0.093" Dia x 0.250" L) are identical. CMF55866R00FHEB (0.090" Dia x 0.240" L) is slightly smaller and will fit the same footprint without clearance issues.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. RNF14FAD866R, RNF14FTD866R, and CMF55866R00FHEB are all ROHS3 compliant and REACH unaffected. All parts carry the same ECCN (EAR99) and HTSUS (8533.21.0090) classifications.

Q: What is the difference between Tape & Box (TB) and Cut Tape (CT) packaging?

A: Tape & Box packaging includes a full reel with protective box, typically for larger orders or stock management. Cut Tape packaging provides pre-cut lengths on tape, suitable for automated assembly and smaller quantity requirements. Electrical and mechanical specifications remain identical.