RNF12FTC887R Equivalent & Substitute Parts

Part Overview

The RNF12FTC887R is a 887 Ohm ±1% metal film through-hole resistor rated at 0.5W (1/2W) in axial package configuration, manufactured by Stackpole Electronics Inc. This component is classified as Active product status and features flame retardant coating with safety-grade construction suitable for industrial and commercial applications. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.

Substiute Parts

RNF12FTC887R

Stackpole Electronics IncIn Stock: 1002RNF12FTC887R Datasheet

Current PartRFQ

CMF55887R00FHEB

Vishay DaleIn Stock: 1907CMF55887R00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC887R is determined by the following critical parameters:

• Resistance value: 887 Ohms (exact match required)
• Tolerance: ±1% (equivalent or tighter tolerance acceptable)
• Power rating: 0.5W minimum (equal or higher acceptable)
• Composition: Metal Film (maintains electrical performance characteristics)
• Package: Axial through-hole (mechanical and thermal compatibility)
• Temperature coefficient: ±50ppm/°C or better (stability requirement)
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected

The CMF55887R00FHEB from Vishay Dale meets all substitution criteria with identical electrical specifications and enhanced operating temperature range (-55°C to 175°C), providing extended thermal performance margin.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC887R and CMF55887R00FHEB maintain Active product status with full ROHS3 compliance and REACH unaffected certification. The CMF55887R00FHEB substitute provides identical electrical performance with extended upper operating temperature limit (175°C versus 155°C) and additional moisture resistance feature. Physical dimensions differ slightly, with the Vishay Dale component featuring a more compact axial profile. Selection between these components should be based on thermal environment requirements, available board space, and packaging format preference (Tape & Reel versus Cut Tape).

Frequently Asked Questions (FAQ)

Q: Can CMF55887R00FHEB replace RNF12FTC887R in all applications?

A: Yes, provided the physical dimensions accommodate the substitute. The CMF55887R00FHEB is 0.018" smaller in diameter and 0.104" shorter in length. Verify board layout clearances before substitution.

Q: Are the electrical characteristics identical?

A: Electrical characteristics are identical: 887 Ohms ±1%, 0.5W power rating, ±50ppm/°C temperature coefficient, and metal film composition. Both components meet the same tolerance and stability requirements.

Q: What is the advantage of the extended temperature range in CMF55887R00FHEB?

A: The CMF55887R00FHEB operates to 175°C versus 155°C for the RNF12FTC887R, providing additional thermal margin in high-temperature environments. This does not affect performance in standard operating conditions.

Q: Do packaging format differences affect circuit performance?

A: No. Tape & Reel (TR) and Cut Tape (CT) packaging formats are manufacturing and supply chain distinctions only. Electrical and mechanical performance of the components themselves remain identical.

Q: Are both components suitable for safety-critical applications?

A: Both components feature flame retardant coating and safety-grade construction. Regulatory compliance (ROHS3, REACH) is equivalent. Application-specific safety requirements should be evaluated independently.