TNPW08052K49DETA Equivalent & Substitute Parts

Part Overview

The TNPW08052K49DETA is a 2.49 kOhms ±0.5% 0.125W (1/8W) chip resistor in 0805 (2012 Metric) package manufactured by Vishay Dale. This military-grade thin film resistor operates across -55°C to 125°C with a temperature coefficient of ±25ppm/°C. The part is currently active in production with 953 units in stock. Substitute parts are identified to address inventory availability, tolerance requirements, or specific application needs while maintaining electrical and mechanical compatibility.

Substiute Parts

TNPW08052K49DETA

Vishay DaleIn Stock: 1053TNPW08052K49DETA Datasheet

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TNPW08052K49BECN

Vishay DaleIn Stock: 1698TNPW08052K49BECN Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TNPW08052K49DETA is determined by the following critical parameters:

Resistance value must remain 2.49 kOhms. Power rating must be 0.125W (1/8W) or greater. Package must be 0805 (2012 Metric). Composition must be thin film. Temperature coefficient must be ±25ppm/°C or better. Operating temperature range must cover -55°C to 125°C. Termination count must be 2. Physical dimensions must match 0.079" L x 0.049" W (2.00mm x 1.25mm).

Tolerance may vary provided the substitute part meets or exceeds the tolerance specification of the main part. The TNPW08052K49BECN qualifies as a direct substitute because it maintains all critical electrical and mechanical parameters while offering improved tolerance performance.

Parameter Comparison

Engineering Selection Recommendations

Both TNPW08052K49DETA and TNPW08052K49BECN are active production parts from Vishay Dale with identical electrical and mechanical specifications except for tolerance. The TNPW08052K49BECN offers tighter tolerance (±0.1% versus ±0.5%), making it suitable for applications requiring higher precision. Both parts are RoHS non-compliant and REACH affected with identical compliance classifications (ECCN: EAR99, HTSUS: 8533.21.0030). Selection between these parts depends on tolerance requirements and inventory availability. The TNPW08052K49BECN provides higher stock availability (1631 units versus 953 units).

Frequently Asked Questions (FAQ)

Q: Can TNPW08052K49BECN replace TNPW08052K49DETA in all applications?

A: Yes, the TNPW08052K49BECN is a direct substitute. It maintains identical resistance, power rating, package, temperature range, and temperature coefficient. The improved tolerance (±0.1% versus ±0.5%) makes it compatible with or superior to the original specification.

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

A: The primary difference is tolerance specification. TNPW08052K49DETA has ±0.5% tolerance, while TNPW08052K49BECN has ±0.1% tolerance. All other electrical and mechanical parameters are identical.

Q: Are there any package or footprint differences?

A: No. Both parts use the 0805 (2012 Metric) package with identical dimensions (0.079" L x 0.049" W) and height (0.022" max seated height). PCB footprints are interchangeable.

Q: What is the temperature coefficient specification?

A: Both parts have a temperature coefficient of ±25ppm/°C and operate across -55°C to 125°C.

Q: Are there compliance or certification differences?

A: Both parts share identical compliance status: RoHS non-compliant, REACH affected, ECCN EAR99, and HTSUS 8533.21.0030.