RNCF0805DKE412R Equivalent & Substitute Parts

Part Overview

The RNCF0805DKE412R is a 412 Ohm thin film chip resistor manufactured by Stackpole Electronics Inc, rated for 0.25W (1/4W) power dissipation with ±0.5% tolerance. This 0805 (2012 Metric) surface mount component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently active in production with 771 units in stock.

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design requirements allow for alternative specifications that maintain functional compatibility within the circuit application.

Substiute Parts

RNCF0805DKE412R

Stackpole Electronics IncIn Stock: 858RNCF0805DKE412R Datasheet

Current PartRFQ

ERA-6AEB4120V

Panasonic Electronic ComponentsIn Stock: 10674ERA-6AEB4120V Datasheet

UpgradeRFQ

8-2176091-1

TE Connectivity Passive ProductIn Stock: 20598-2176091-1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNCF0805DKE412R is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 412 Ohms
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±25ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Tolerance: May be equal or tighter (±0.5% or better)
• Power Rating: May be equal or higher (0.25W or greater)
• Automotive Rating: AEC-Q200 compliance preferred for automotive applications

Two substitute parts meet these criteria and are grouped as follows:

Upgrade Substitute (Panasonic ERA-6AEB4120V): Tighter tolerance (±0.1% vs ±0.5%), reduced power rating (0.125W vs 0.25W), maintains AEC-Q200 automotive qualification.

Manufacturer Recommended Substitute (TE Connectivity 8-2176091-1): Tighter tolerance (±0.1% vs ±0.5%), equal power rating (0.25W), does not carry explicit AEC-Q200 designation.

Parameter Comparison

Engineering Selection Recommendations

For Automotive AEC-Q200 Applications: The Panasonic ERA-6AEB4120V is the preferred substitute when component availability is constrained. It maintains full AEC-Q200 automotive qualification and offers improved tolerance (±0.1%). The reduced power rating (0.125W vs 0.25W) is acceptable in circuits where the original 0.25W specification provides design margin. This part has the highest inventory availability (10655 units).

For Non-Automotive or General Industrial Applications: The TE Connectivity 8-2176091-1 is suitable as a substitute when automotive qualification is not required. It matches the original power rating (0.25W) and offers tighter tolerance (±0.1%). Inventory availability is adequate (2035 units).

For Strict Automotive Compliance: If AEC-Q200 qualification is mandatory for the application, the Panasonic ERA-6AEB4120V is the only qualifying substitute. The TE Connectivity part does not carry explicit AEC-Q200 designation and should not be used in applications requiring this certification.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic ERA-6AEB4120V replace the RNCF0805DKE412R in all applications? A: The Panasonic substitute is compatible in applications where the circuit design accommodates a 0.125W power rating. If the original design requires 0.25W dissipation capability, the reduced power rating may not be suitable. Verify circuit power requirements before substitution.

Q: What is the significance of the ±0.1% tolerance in the substitute parts? A: Both substitute parts offer tighter tolerance (±0.1%) compared to the original ±0.5%. This means the actual resistance value will be closer to the nominal 412 Ohm specification, which may improve circuit performance in precision applications. Tighter tolerance is always acceptable as a substitute for looser tolerance.

Q: Is the TE Connectivity 8-2176091-1 suitable for automotive applications? A: The TE Connectivity part does not carry explicit AEC-Q200 automotive qualification in the provided specifications. For applications requiring automotive certification, use the Panasonic ERA-6AEB4120V instead.

Q: Are all three parts physically identical in the 0805 package? A: All three parts use the 0805 (2012 Metric) package with identical length (0.079") and width (0.049"). Height differences are minimal (0.026" for Stackpole and TE Connectivity vs 0.024" for Panasonic), which do not affect PCB assembly compatibility.

Q: What is Moisture Sensitivity Level 1 (MSL 1)? A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All three parts have this rating, meaning they can be stored and handled without special moisture control procedures.