RNF12FTC464K Equivalent & Substitute Parts

Part Overview

The RNF12FTC464K is a 464 kOhms ±1% 0.5W through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for applications requiring precision resistance values in compact axial packages. The part maintains Active product status with 1058 units in current inventory. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and compliance certifications align with the original component requirements.

Substiute Parts

RNF12FTC464K

Stackpole Electronics IncIn Stock: 1101RNF12FTC464K Datasheet

Current PartRFQ

CMF55464K00FHEB

Vishay DaleIn Stock: 2056CMF55464K00FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC464K is determined by strict alignment of the following parameters:

• Resistance value: 464 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• RoHS compliance: ROHS3 Compliant (minimum requirement)
• Termination count: 2 (exact match required)

The CMF55464K00FHEB from Vishay Dale meets all substitution criteria with identical electrical specifications and compatible mechanical construction.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC464K and CMF55464K00FHEB maintain Active product status with current manufacturing support. Selection between these parts should be based on:

• Physical space constraints: The CMF55464K00FHEB features a smaller axial profile (0.090" diameter vs. 0.108" diameter), suitable for compact PCB layouts.
• Temperature margin: The CMF55464K00FHEB extends the upper operating temperature to 175°C compared to 155°C for the RNF12FTC464K, providing additional thermal headroom in high-temperature applications.
• Moisture resistance: The CMF55464K00FHEB includes moisture-resistant construction, beneficial for humid or corrosive environments.
• Compliance scope: Both parts are ROHS3 compliant. The CMF55464K00FHEB carries REACH Affected status, while the RNF12FTC464K is REACH Unaffected.
• Inventory availability: Selection may be influenced by current stock levels and supply chain lead times.

Frequently Asked Questions (FAQ)

Q: Can the CMF55464K00FHEB directly replace the RNF12FTC464K in existing designs?

A: Yes, the CMF55464K00FHEB is electrically equivalent with identical resistance, tolerance, power rating, and temperature coefficient. Physical dimensions differ; verify PCB layout clearances before substitution.

Q: What is the significance of the different operating temperature ranges?

A: The RNF12FTC464K operates from -55°C to 155°C, while the CMF55464K00FHEB extends to 175°C. Both ranges exceed typical industrial specifications. Selection depends on specific application thermal requirements.

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant and carry EAR99 ECCN classification. The CMF55464K00FHEB is REACH Affected, while the RNF12FTC464K is REACH Unaffected. Verify regulatory requirements for your end application and geographic market.

Q: How do the physical dimensions affect PCB design?

A: The CMF55464K00FHEB is smaller in both diameter and length, reducing board space requirements. Verify hole spacing and component clearances on your PCB layout to ensure compatibility.

Q: What does the moisture-resistant feature on the CMF55464K00FHEB provide?

A: Moisture-resistant construction protects against humidity ingress and corrosion in high-humidity, marine, or outdoor environments. This feature is not specified for the RNF12FTC464K.