TNPW08054K02BYEN Equivalent & Substitute Parts

Part Overview

The TNPW08054K02BYEN is a 4.02 kOhms ±0.1% thin film chip resistor manufactured by Vishay Dale in the 0805 (2012 Metric) package. This component is rated for 0.26W power dissipation and is designed for automotive applications with AEC-Q200 qualification. The resistor features anti-sulfur and moisture-resistant properties, making it suitable for demanding environments. The part is currently active in production with 964 units in stock. Substitute parts are identified when equivalent electrical specifications and package compatibility exist, enabling design flexibility and supply chain alternatives.

Substiute Parts

TNPW08054K02BYEN

Vishay DaleIn Stock: 1020TNPW08054K02BYEN Datasheet

Current PartRFQ

RQ73C2A4K02BTD

TE Connectivity Passive ProductIn Stock: 6661RQ73C2A4K02BTD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TNPW08054K02BYEN is determined by the following critical parameters:

Electrical Specifications:

• Resistance value: 4.02 kOhms
• Tolerance: ±0.1%
• Temperature coefficient: ±10ppm/°C
• Composition: Thin Film

Package Compatibility:

• Package type: 0805 (2012 Metric)
• Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
• Number of terminations: 2

Compliance & Ratings:

• Automotive qualification: AEC-Q200
• RoHS compliance: ROHS3
• Moisture sensitivity: MSL 1

Power Consideration: The substitute part RQ73C2A4K02BTD operates at 0.2W (1/5W), which is lower than the main part's 0.26W rating. This represents a functional constraint that must be evaluated based on circuit requirements.

Operating Temperature: The main part operates across -55°C ~ 175°C, while the substitute operates across -55°C ~ 155°C. The substitute's upper temperature limit is 20°C lower, which may restrict use in high-temperature applications.

Parameter Comparison

Engineering Selection Recommendations

TNPW08054K02BYEN (Vishay Dale): This part is the primary specification. It provides the full 0.26W power rating and extended operating temperature range to 175°C. Selection is appropriate for applications requiring maximum thermal headroom and power dissipation capacity. The part is active in production with established supply availability.

RQ73C2A4K02BTD (TE Connectivity): This substitute part maintains electrical equivalence in resistance, tolerance, and temperature coefficient. Both parts carry AEC-Q200 automotive qualification and ROHS3 compliance. The substitute is suitable for applications where the 0.2W power rating is sufficient and operating temperatures do not exceed 155°C. The substitute offers higher inventory availability (6586 units in stock). Physical height differs by 0.004" (0.10mm), which may impact PCB layout in space-constrained designs.

Selection between these parts depends on circuit power dissipation requirements and maximum operating temperature specifications. Both parts satisfy automotive and environmental compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can RQ73C2A4K02BTD replace TNPW08054K02BYEN in all applications?

A: Substitution is valid only when circuit power dissipation does not exceed 0.2W and maximum operating temperature does not exceed 155°C. The main part's 0.26W rating and 175°C upper limit provide broader application coverage.

Q: Are the physical dimensions identical between these parts?

A: Both parts use the 0805 (2012 Metric) package with identical length and width (0.079" x 0.049"). The seated height differs: TNPW08054K02BYEN is 0.022" (0.55mm) maximum, while RQ73C2A4K02BTD is 0.026" (0.65mm) maximum. This 0.004" difference may affect PCB clearance in applications with height constraints.

Q: Do both parts meet automotive standards?

A: Yes. Both the TNPW08054K02BYEN and RQ73C2A4K02BTD carry AEC-Q200 automotive qualification and are ROHS3 compliant. Both feature anti-sulfur properties and MSL 1 moisture sensitivity rating.

Q: What is the difference in temperature coefficient between these parts?

A: Both parts have identical temperature coefficients of ±10ppm/°C, ensuring equivalent frequency stability and thermal performance characteristics.

Q: Are there differences in tolerance specifications?

A: No. Both parts are specified at ±0.1% tolerance, providing identical precision for circuit design calculations.

Q: Which part should be selected for high-temperature automotive applications?

A: The TNPW08054K02BYEN is specified for operation to 175°C, compared to the RQ73C2A4K02BTD's 155°C maximum. For applications approaching or exceeding 155°C, the main part is the appropriate selection.

Q: What is the inventory status of each part?

A: TNPW08054K02BYEN has 964 units in stock. RQ73C2A4K02BTD has 6586 units in stock, providing greater immediate availability for high-volume requirements.