RNCF0402BTE412R Equivalent & Substitute Parts

Part Overview

The RNCF0402BTE412R is a 412 Ohm thin film chip resistor manufactured by Stackpole Electronics Inc, designed for automotive applications with AEC-Q200 qualification. This 0402 (1005 Metric) package component delivers 0.1W power rating with ±0.1% tolerance and operates across -55°C to 155°C. The part is currently active in production with 1007 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter ranges for this resistor category.

Substiute Parts

RNCF0402BTE412R

Stackpole Electronics IncIn Stock: 1053RNCF0402BTE412R Datasheet

Current PartRFQ

ERA-2AEB4120X

Panasonic Electronic ComponentsIn Stock: 31021ERA-2AEB4120X Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNCF0402BTE412R is determined by the following critical parameters:

• Resistance Value: Must be 412 Ohms
• Tolerance: Must be ±0.1%
• Package Type: Must be 0402 (1005 Metric)
• Composition: Must be Thin Film
• Temperature Coefficient: Must be ±25ppm/°C
• Operating Temperature Range: Must support -55°C ~ 155°C
• Automotive Compliance: Must carry AEC-Q200 qualification
• RoHS Compliance: Must be ROHS3 Compliant

The ERA-2AEB4120X from Panasonic Electronic Components meets all substitution criteria. While the power rating differs (0.063W vs 0.1W), this represents a derating condition acceptable in circuit design where the substitute part operates within its thermal limits at the application's actual power dissipation.

Parameter Comparison

Engineering Selection Recommendations

Both the RNCF0402BTE412R and ERA-2AEB4120X are active production components with full AEC-Q200 automotive qualification and ROHS3 compliance. Selection between these parts should be based on:

RNCF0402BTE412R is the primary choice when the full 0.1W power rating is required by circuit design specifications or when Stackpole sourcing is preferred.

ERA-2AEB4120X is suitable as a substitute when circuit analysis confirms that actual power dissipation does not exceed 0.063W, ensuring the component operates within its rated thermal envelope. The identical resistance, tolerance, temperature coefficient, and package dimensions provide direct functional equivalence. The marginal height difference (0.016" vs 0.014" maximum seated height) is negligible for standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can ERA-2AEB4120X replace RNCF0402BTE412R in all applications?

A: ERA-2AEB4120X is a valid substitute provided the circuit's actual power dissipation at the 412 Ohm resistor does not exceed 0.063W. If circuit analysis shows power dissipation below this threshold, the substitute operates within specification. If power dissipation approaches or exceeds 0.063W, the original RNCF0402BTE412R with its 0.1W rating must be used.

Q: Are the physical dimensions compatible?

A: Yes. Both parts use the 0402 (1005 Metric) package with identical length and width (0.039" x 0.020"). The maximum seated height differs by 0.002" (0.01mm), which is within standard PCB assembly tolerances and does not affect placement or soldering.

Q: Do both parts meet automotive requirements?

A: Yes. Both RNCF0402BTE412R and ERA-2AEB4120X carry AEC-Q200 qualification and are suitable for automotive applications within their respective power ratings and operating temperature ranges.

Q: What is the significance of the ±0.1% tolerance?

A: The ±0.1% tolerance ensures precise resistance values critical for precision analog circuits, filtering networks, and measurement applications. Both parts maintain this tolerance specification, making them functionally equivalent in tolerance-sensitive designs.

Q: Are there any moisture or environmental concerns with substitution?

A: No. Both parts have Moisture Sensitivity Level 1 (Unlimited) and ROHS3 compliance, indicating equivalent environmental performance and handling requirements.