RNCF1206DKE412R Equivalent & Substitute Parts

Part Overview

The RNCF1206DKE412R is a 412 Ohm thin film chip resistor manufactured by Stackpole Electronics Inc, designed for automotive applications with AEC-Q200 qualification. This 1206 package resistor delivers 0.333W power dissipation with ±0.5% tolerance and operates across -55°C to 155°C. The part is currently active in production with 639 units in stock. Substitute parts are identified when equivalent resistance values, package compatibility, and automotive-grade certifications align with application requirements.

Substiute Parts

RNCF1206DKE412R

Stackpole Electronics IncIn Stock: 717RNCF1206DKE412R Datasheet

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ERA-8AEB4120V

Panasonic Electronic ComponentsIn Stock: 3797ERA-8AEB4120V Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNCF1206DKE412R is determined by the following critical parameters:

• Resistance value: 412 Ohms (exact match required)
• Package type: 1206 (3216 Metric) form factor
• Automotive qualification: AEC-Q200 certification
• Composition: Thin film construction
• Temperature coefficient: ±25ppm/°C
• Operating temperature range: -55°C to 155°C minimum
• RoHS compliance: ROHS3 Compliant

The ERA-8AEB4120V qualifies as a substitute because it maintains identical resistance, package, automotive rating, composition, temperature coefficient, and operating range. Tolerance and power rating differences do not preclude substitution when the application circuit design accommodates these variations.

Parameter Comparison

Engineering Selection Recommendations

Both the RNCF1206DKE412R and ERA-8AEB4120V maintain active production status and full AEC-Q200 automotive qualification. Selection between these parts depends on circuit-specific requirements:

The RNCF1206DKE412R provides higher power dissipation capacity at 0.333W with standard ±0.5% tolerance, suitable for general automotive applications with moderate thermal constraints.

The ERA-8AEB4120V offers superior tolerance performance at ±0.1% with lower power rating of 0.25W, appropriate for precision-critical circuits where tighter resistance tolerance is required and thermal dissipation is not a limiting factor.

Both parts comply with ROHS3 and maintain identical package footprints, temperature coefficients, and operating ranges, ensuring direct PCB compatibility and thermal performance equivalence within their respective power ratings.

Frequently Asked Questions (FAQ)

Q: Can ERA-8AEB4120V replace RNCF1206DKE412R in any application?

A: Direct substitution is valid when circuit design accommodates the lower power rating of 0.25W versus 0.333W. If the application dissipates power approaching or exceeding 0.25W in this resistor, the RNCF1206DKE412R is required.

Q: Are there package footprint differences between these parts?

A: Both parts use the 1206 (3216 Metric) package. Physical dimensions differ slightly (RNCF: 3.05mm × 1.55mm; ERA-8A: 3.20mm × 1.60mm), but both fit standard 1206 PCB land patterns without modification.

Q: Does the ±0.1% tolerance of ERA-8AEB4120V provide automatic performance improvement?

A: Tighter tolerance improves resistance accuracy but does not enhance other electrical characteristics. Selection should be based on circuit tolerance requirements, not tolerance alone.

Q: Are both parts suitable for automotive applications?

A: Yes. Both parts carry AEC-Q200 qualification and ROHS3 compliance, meeting automotive industry standards for reliability and environmental compliance.

Q: What is the significance of MSL 1 rating for both parts?

A: MSL 1 (Unlimited) indicates these parts have no moisture sensitivity restrictions and require no special storage or handling procedures prior to assembly.