TNPW0805249RBETA Equivalent & Substitute Parts

Part Overview

The TNPW0805249RBETA is a 249 Ohm ±0.1% thin film chip resistor in 0805 (2012 Metric) package format, rated for 0.125W (1/8W) power dissipation. This military-grade component operates across -55°C to 125°C with a temperature coefficient of ±25ppm/°C. The part is currently active in production with 886 pieces available in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained within the allowed parameter tolerances for this resistor category.

Substiute Parts

TNPW0805249RBETA

Vishay DaleIn Stock: 908TNPW0805249RBETA Datasheet

Current PartRFQ

TNPW0805249RBEEA

Vishay DaleIn Stock: 16420TNPW0805249RBEEA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TNPW0805249RBETA is determined by the following criteria:

• Resistance value must be 249 Ohms
• Tolerance must be ±0.1%
• Package must be 0805 (2012 Metric)
• Composition must be thin film
• Temperature coefficient must be ±25ppm/°C
• Number of terminations must be 2
• Moisture Sensitivity Level must be 1 (Unlimited)

The TNPW0805249RBEEA meets all substitution criteria. While this substitute offers enhanced power rating (0.26W versus 0.125W) and extended operating temperature range (-55°C to 175°C versus -55°C to 125°C), these represent improvements that maintain full backward compatibility with the original specification.

Parameter Comparison

Engineering Selection Recommendations

Both TNPW0805249RBETA and TNPW0805249RBEEA are active production components from Vishay Dale with identical core electrical specifications. The TNPW0805249RBEEA provides additional design margin through higher power rating (0.26W) and extended temperature range (-55°C to 175°C). The TNPW0805249RBEEA carries AEC-Q200 automotive qualification and anti-sulfur, moisture-resistant features. The TNPW0805249RBETA is RoHS non-compliant, while TNPW0805249RBEEA is ROHS3 compliant. Selection between these parts should be based on regulatory requirements, environmental conditions, and compliance certifications applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Can TNPW0805249RBEEA replace TNPW0805249RBETA in existing designs?

A: Yes. Both parts share identical resistance (249 Ohms), tolerance (±0.1%), package (0805), composition (thin film), temperature coefficient (±25ppm/°C), and physical dimensions. The substitute offers equal or superior performance across all specified parameters.

Q: What is the difference in power rating between these parts?

A: TNPW0805249RBETA is rated for 0.125W (1/8W), while TNPW0805249RBEEA is rated for 0.26W. The higher power rating of the substitute provides additional thermal margin and does not affect electrical compatibility.

Q: Are there temperature range differences?

A: TNPW0805249RBETA operates from -55°C to 125°C. TNPW0805249RBEEA extends this range to -55°C to 175°C, providing broader environmental operating capability.

Q: What compliance differences exist between these parts?

A: TNPW0805249RBETA is RoHS non-compliant and REACH Affected. TNPW0805249RBEEA is ROHS3 compliant and REACH Unaffected. The substitute includes AEC-Q200 automotive qualification and anti-sulfur, moisture-resistant features.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.079" L x 0.049" W (2.00mm x 1.25mm) with maximum seated height of 0.022" (0.55mm). They are mechanically interchangeable in 0805 footprints.

Q: What is the moisture sensitivity level for both parts?

A: Both TNPW0805249RBETA and TNPW0805249RBEEA have Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions.