RNCF0603BKE412R Equivalent & Substitute Parts

Part Overview

The RNCF0603BKE412R is a 412 Ohm thin film chip resistor manufactured by Stackpole Electronics Inc, designed for automotive applications with AEC-Q200 qualification. This 0603 (1608 Metric) package component delivers 0.167W power rating with ±0.1% tolerance and ±25ppm/°C temperature coefficient. The part is actively produced and widely available, with 784 units in current inventory. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and automotive certifications align with the original component requirements.

Substiute Parts

RNCF0603BKE412R

Stackpole Electronics IncIn Stock: 794RNCF0603BKE412R Datasheet

Current PartRFQ

ERA-3AEB4120V

Panasonic Electronic ComponentsIn Stock: 1096008ERA-3AEB4120V Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNCF0603BKE412R is determined by the following critical parameters:

• Resistance value: 412 Ohms (exact match required)
• Tolerance: ±0.1% (exact match required)
• Package: 0603 (1608 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature Coefficient: ±25ppm/°C (exact match required)
• Operating Temperature Range: -55°C to 155°C (minimum requirement)
• Automotive Certification: AEC-Q200 (required for automotive applications)
• RoHS Compliance: ROHS3 Compliant (required for regulatory compliance)

The ERA-3AEB4120V qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. The power rating difference (0.1W vs 0.167W) does not disqualify substitution when the application circuit design accommodates the lower power specification.

Parameter Comparison

Engineering Selection Recommendations

Both the RNCF0603BKE412R and ERA-3AEB4120V are active production components with full AEC-Q200 automotive qualification and ROHS3 compliance. Selection between these parts should be based on:

Availability and lead time requirements, as both manufacturers maintain active inventory.

Power dissipation analysis in the target application circuit. The ERA-3AEB4120V operates at a lower power rating (0.1W) compared to the RNCF0603BKE412R (0.167W). Verify that circuit operating conditions do not exceed the 0.1W specification of the substitute part.

Mechanical fit verification. While both components use the 0603 package, dimensional tolerances show minor length variations (1.55mm vs 1.60mm). Confirm PCB layout and assembly equipment compatibility.

Supply chain continuity and preferred vendor relationships within your organization.

Frequently Asked Questions (FAQ)

Q: Can ERA-3AEB4120V replace RNCF0603BKE412R in any application?

A: ERA-3AEB4120V qualifies as a substitute when circuit power dissipation does not exceed 0.1W. The lower power rating is the primary constraint. Verify actual power dissipation in your specific application before substitution.

Q: Are the physical dimensions compatible for PCB assembly?

A: Both components use the 0603 (1608 Metric) package with identical height (0.55mm maximum). Length dimensions differ slightly (1.55mm vs 1.60mm), which is within standard 0603 package tolerance. PCB footprints designed for 0603 components accommodate both parts.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both RNCF0603BKE412R and ERA-3AEB4120V carry AEC-Q200 certification and are suitable for automotive applications within their specified operating parameters.

Q: What is the significance of the ±25ppm/°C temperature coefficient?

A: The temperature coefficient defines resistance change over the operating temperature range (-55°C to 155°C). Both parts maintain identical temperature stability, ensuring consistent circuit performance across the full automotive temperature range.

Q: Are there any moisture sensitivity concerns?

A: Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity limitations. Standard handling and storage practices apply.