RNF12FTC56K2 Equivalent & Substitute Parts

Part Overview

The RNF12FTC56K2 is a 56.2 kOhms ±1% metal film axial through-hole resistor rated at 0.5W (1/2W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-grade construction, designed for applications requiring precision resistance values with reliable performance across industrial temperature ranges. The part is currently in active production status with 794 units available in stock. Substitute parts are identified to provide design flexibility, inventory alternatives, and sourcing options while maintaining electrical and mechanical compatibility.

Substiute Parts

RNF12FTC56K2

Stackpole Electronics IncIn Stock: 832RNF12FTC56K2 Datasheet

Current PartRFQ

CMF5556K200FHEB

Vishay DaleIn Stock: 6088CMF5556K200FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC56K2 is determined by the following critical parameters:

• Resistance value: 56.2 kOhms (exact match required)
• Tolerance: ±1% (equal or tighter tolerance acceptable)
• Power rating: 0.5W minimum (equal or higher acceptable)
• Composition: Metal Film (maintains electrical characteristics)
• Package: Axial through-hole (mechanical compatibility)
• Temperature coefficient: ±50ppm/°C or better (stability requirement)
• Compliance: ROHS3 and REACH status alignment

The CMF5556K200FHEB from Vishay Dale meets all substitution criteria. Both parts share identical electrical specifications (56.2 kOhms, ±1%, 0.5W, metal film, ±50ppm/°C) and comply with the same regulatory standards. Physical dimensions differ slightly, but both maintain axial package compatibility for standard through-hole PCB applications.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC56K2 and CMF5556K200FHEB are active production components with full ROHS3 compliance and REACH unaffected status, making either suitable for regulated applications. The CMF5556K200FHEB offers an extended operating temperature range (-55°C to 175°C versus -55°C to 155°C) and includes moisture-resistant features, providing enhanced environmental protection. The Vishay Dale substitute is available in higher inventory quantity (6027 units) compared to the Stackpole part (794 units), supporting supply chain continuity. Selection between these parts should be based on packaging format requirements (Tape & Reel versus Cut Tape), inventory availability, and thermal operating envelope specifications for the target application.

Frequently Asked Questions (FAQ)

Q: Can CMF5556K200FHEB replace RNF12FTC56K2 in existing designs?

A: Yes. Both parts share identical electrical specifications (56.2 kOhms, ±1%, 0.5W, metal film, ±50ppm/°C) and axial package configuration. Physical dimensions differ slightly (CMF: 2.29mm diameter × 6.10mm length; RNF: 2.75mm diameter × 8.75mm length), but both fit standard through-hole PCB layouts. Verify PCB hole spacing and component clearance for your specific board design.

Q: What is the difference in operating temperature ranges?

A: The RNF12FTC56K2 operates from -55°C to 155°C, while the CMF5556K200FHEB extends to 175°C. For applications requiring operation above 155°C, the Vishay Dale part is required. For applications within -55°C to 155°C, both parts are functionally equivalent.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the RNF12FTC56K2 and CMF5556K200FHEB are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronics manufacturing.

Q: What packaging formats are available?

A: The RNF12FTC56K2 is supplied in Tape & Reel (TR) format, while the CMF5556K200FHEB is supplied in Cut Tape (CT) format. Select based on your assembly process requirements and inventory management preferences.

Q: Does the CMF5556K200FHEB moisture-resistant feature affect compatibility?

A: No. Moisture resistance is an additional feature that enhances performance in humid environments but does not affect electrical compatibility or substitution suitability. This feature is beneficial for applications exposed to moisture or condensation.