TNPW0805499KBETA Equivalent & Substitute Parts

Part Overview

The TNPW0805499KBETA is a 499 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) package manufactured by Vishay Dale. This military-grade component operates across -55°C to 125°C with 0.125W power rating and is currently in active production status. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

TNPW0805499KBETA

Vishay DaleIn Stock: 805TNPW0805499KBETA Datasheet

Current PartRFQ

TNPW0805499KBEEA

Vishay DaleIn Stock: 1054TNPW0805499KBEEA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TNPW0805499KBETA is determined by the following critical parameters:

• Resistance value: 499 kOhms (exact match required)
• Tolerance: ±0.1% (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature Coefficient: ±25ppm/°C (exact match required)
• Number of Terminations: 2 (exact match required)
• Physical dimensions: 0.079" L x 0.049" W, Height 0.022" max (exact match required)

The substitute part TNPW0805499KBEEA meets all critical electrical and mechanical parameters. Differences in power rating (0.26W vs. 0.125W), operating temperature upper limit (175°C vs. 125°C), and compliance certifications do not disqualify substitution when the application requirements permit these enhanced specifications.

Parameter Comparison

Engineering Selection Recommendations

The TNPW0805499KBEEA serves as a direct substitute for the TNPW0805499KBETA when application requirements align with the following conditions:

• Circuits operating within the extended temperature range of -55°C to 175°C benefit from the TNPW0805499KBEEA's higher upper temperature limit.
• Applications requiring ROHS3 compliance must use TNPW0805499KBEEA, as the main part is RoHS non-compliant.
• Automotive and high-reliability applications requiring AEC-Q200 qualification must use TNPW0805499KBEEA.
• Circuits with power dissipation requirements up to 0.26W can utilize the TNPW0805499KBEEA's enhanced power rating without circuit redesign.
• Both parts maintain identical electrical performance (499 kOhms ±0.1%, ±25ppm/°C) and mechanical compatibility (0805 package, identical dimensions).

Frequently Asked Questions (FAQ)

Q: Can TNPW0805499KBEEA replace TNPW0805499KBETA in all applications?

A: TNPW0805499KBEEA is electrically and mechanically compatible with TNPW0805499KBETA. Substitution is valid when the application does not require military-grade specifications or when RoHS3 compliance and AEC-Q200 certification are acceptable or required.

Q: What are the key differences between these two parts?

A: The primary differences are power rating (0.26W vs. 0.125W), maximum operating temperature (175°C vs. 125°C), RoHS compliance status (ROHS3 vs. non-compliant), and feature set (AEC-Q200 automotive qualification vs. military grade). Electrical specifications and package dimensions are identical.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 0805 (2012 Metric) package with identical dimensions of 0.079" L x 0.049" W and maximum seated height of 0.022".

Q: Does the higher power rating of TNPW0805499KBEEA affect circuit performance?

A: No. The higher power rating (0.26W) is a component capability that does not alter electrical performance. The resistor will function identically in circuits designed for 0.125W or lower power dissipation.

Q: Can TNPW0805499KBETA replace TNPW0805499KBEEA?

A: TNPW0805499KBETA is not suitable as a substitute for TNPW0805499KBEEA in applications requiring RoHS3 compliance, AEC-Q200 certification, or operating temperatures above 125°C.