RNF12FTC187R Equivalent & Substitute Parts

Part Overview

The RNF12FTC187R is a 187 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 designed for applications requiring precision resistance with flame retardant coating and safety features. The part maintains Active product status with 1071 units in current inventory. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.

Substiute Parts

RNF12FTC187R

Stackpole Electronics IncIn Stock: 1159RNF12FTC187R Datasheet

Current PartRFQ

CMF55187R00FHEB

Vishay DaleIn Stock: 1779CMF55187R00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC187R is determined by the following critical parameters:

• Resistance Value: Must be 187 Ohms
• Tolerance: Must be ±1%
• Power Rating: Must be 0.5W (1/2W)
• Composition: Must be Metal Film
• Package Configuration: Must be Axial through-hole
• Temperature Coefficient: Must be ±50ppm/°C
• Regulatory Compliance: Must maintain ROHS3 compliance and REACH Unaffected status

The CMF55187R00FHEB from Vishay Dale meets all substitution criteria. Both parts share identical electrical specifications and regulatory certifications, with mechanical compatibility confirmed through axial package standardization.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC187R and CMF55187R00FHEB are Active status components with full ROHS3 compliance and REACH Unaffected certification. The CMF55187R00FHEB provides an extended operating temperature range to 175°C compared to 155°C for the RNF12FTC187R, and includes moisture resistant features. Selection between these parts should be based on application temperature requirements and packaging format availability. The CMF55187R00FHEB in Cut Tape format may require different handling procedures compared to the Tape & Reel format of the RNF12FTC187R.

Frequently Asked Questions (FAQ)

Q: Can CMF55187R00FHEB be used as a direct replacement for RNF12FTC187R?

A: Yes. Both parts share identical resistance value (187 Ohms), tolerance (±1%), power rating (0.5W), composition (metal film), temperature coefficient (±50ppm/°C), and regulatory compliance status. Axial package standardization ensures mechanical compatibility.

Q: What is the difference in operating temperature ranges?

A: The RNF12FTC187R operates from -55°C to 155°C, while the CMF55187R00FHEB operates from -55°C to 175°C. Selection depends on application thermal requirements.

Q: How do packaging formats differ between these parts?

A: The RNF12FTC187R is supplied in Tape & Reel (TR) format, while the CMF55187R00FHEB is supplied in Cut Tape (CT) format. Both are standard through-hole packaging formats with different handling and dispensing characteristics.

Q: Are both parts RoHS compliant?

A: Yes. Both the RNF12FTC187R and CMF55187R00FHEB are ROHS3 Compliant and REACH Unaffected.

Q: What additional features does the CMF55187R00FHEB provide?

A: The CMF55187R00FHEB includes moisture resistant features in addition to the flame retardant coating and safety features present in both parts.