RNF14FTD36K5 Equivalent & Substitute Parts

Part Overview

The RNF14FTD36K5 is a 36.5 kOhms ±1% metal film axial through-hole resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-grade construction, designed for applications requiring precision resistance values in compact form factors. The part is currently active in production with 912 units in stock inventory. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit higher power ratings or improved thermal characteristics.

Substiute Parts

RNF14FTD36K5

Stackpole Electronics IncIn Stock: 933RNF14FTD36K5 Datasheet

Current PartRFQ

CMF5536K500FHEB

Vishay DaleIn Stock: 2777CMF5536K500FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RNF14FTD36K5 is permissible when the following core electrical and mechanical parameters remain constant or are upgraded:

• Resistance value: 36.5 kOhms (exact match required)
• Tolerance: ±1% (equal or tighter tolerance acceptable)
• Composition: Metal Film (maintains precision and stability characteristics)
• Package: Axial (mechanical compatibility with PCB layout)
• Compliance: ROHS3 and REACH status maintained

The identified substitute CMF5536K500FHEB from Vishay Dale meets these criteria while offering an upgraded power rating (0.5W vs. 0.25W), improved temperature coefficient (±50ppm/°C vs. ±100ppm/°C), and extended maximum operating temperature (175°C vs. 155°C). These upgrades provide enhanced performance margins without compromising electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The CMF5536K500FHEB qualifies as a direct substitute based on maintained electrical specifications (36.5 kOhms ±1% metal film composition) and regulatory compliance (ROHS3 and REACH). Both components are active products with established supply chains. The substitute offers performance enhancements including doubled power dissipation capacity, superior temperature stability, and extended operating temperature range, making it suitable for applications with higher thermal demands or stricter tolerance requirements. Physical dimensions remain comparable for standard PCB mounting applications. Selection between the two components should be based on circuit power dissipation requirements and thermal environment specifications.

Frequently Asked Questions (FAQ)

Q: Can CMF5536K500FHEB replace RNF14FTD36K5 in existing designs?

A: Yes. Both components share identical resistance (36.5 kOhms) and tolerance (±1%) specifications with metal film construction and axial packaging. The substitute's higher power rating (0.5W vs. 0.25W) and improved temperature coefficient (±50ppm/°C vs. ±100ppm/°C) provide performance upgrades without electrical incompatibility.

Q: What are the physical dimension differences?

A: RNF14FTD36K5 measures 0.093" diameter × 0.250" length (2.35mm × 6.35mm). CMF5536K500FHEB measures 0.090" diameter × 0.240" length (2.29mm × 6.10mm). Both are axial through-hole components with standard lead spacing suitable for conventional PCB layouts.

Q: Are both parts RoHS compliant?

A: Yes. Both RNF14FTD36K5 and CMF5536K500FHEB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: When should I use the substitute over the main part?

A: Use CMF5536K500FHEB when circuit power dissipation exceeds 0.25W, when operating temperatures approach or exceed 155°C, or when tighter temperature coefficient tolerance (±50ppm/°C) is required. Use RNF14FTD36K5 when power budget is limited to 0.25W and standard temperature coefficient performance is acceptable.

Q: What is the packaging difference between the two parts?

A: RNF14FTD36K5 is supplied in Tape & Reel (TR) packaging. CMF5536K500FHEB is supplied in Cut Tape (CT) packaging. Both formats are standard for through-hole resistor distribution and do not affect component functionality or PCB assembly compatibility.