TNPW0805866KBETA Equivalent & Substitute Parts

Part Overview

The TNPW0805866KBETA is a 866 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated at 0.125W (1/8W) power dissipation. Manufactured by Vishay Dale, 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 957 units in stock. Substitute parts are identified when electrical specifications, package dimensions, and termination requirements remain compatible while offering enhanced features, higher power ratings, or improved compliance status.

Substiute Parts

TNPW0805866KBETA

Vishay DaleIn Stock: 979TNPW0805866KBETA Datasheet

Current PartRFQ

TNPW0805866KBEEA

Vishay DaleIn Stock: 3209TNPW0805866KBEEA Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TNPW0805866KBETA is determined by the following critical parameters:

• Resistance value: 866 kOhms (exact match required)
• Tolerance: ±0.1% (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Number of Terminations: 2 (exact match required)
• Temperature Coefficient: ±25ppm/°C (exact match required)
• Physical dimensions and height (exact match required)

Substitute parts may differ in power rating (when higher), operating temperature range (when extended), features (anti-sulfur, automotive qualification), and compliance status (RoHS, REACH), provided all core electrical and mechanical parameters remain identical.

Parameter Comparison

Engineering Selection Recommendations

The TNPW0805866KBEEA serves as a direct electrical and mechanical substitute for the TNPW0805866KBETA. Both components share identical resistance, tolerance, package dimensions, and thermal characteristics. The TNPW0805866KBEEA offers the following advantages:

• Higher power dissipation capability (0.26W versus 0.125W)
• Extended operating temperature range (-55°C to 175°C versus -55°C to 125°C)
• ROHS3 compliance status (versus RoHS non-compliant)
• REACH unaffected status (versus REACH affected)
• Automotive AEC-Q200 qualification
• Anti-sulfur and moisture-resistant construction

Selection between these parts depends on application requirements for power dissipation, temperature range, and regulatory compliance. Both maintain identical electrical performance and physical footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can TNPW0805866KBEEA replace TNPW0805866KBETA in all applications?

A: Yes, from an electrical and mechanical standpoint. The substitute part maintains identical resistance value (866 kOhms), tolerance (±0.1%), package dimensions (0805), and temperature coefficient (±25ppm/°C). The higher power rating (0.26W) and extended temperature range (-55°C to 175°C) provide additional operational margin. Verify application compliance requirements regarding RoHS and REACH status before final selection.

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

A: The primary differences are power rating (0.125W versus 0.26W), maximum operating temperature (125°C versus 175°C), regulatory compliance (RoHS non-compliant versus ROHS3 compliant), and feature set (military versus automotive AEC-Q200 with anti-sulfur protection).

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 0805 (2012 Metric) package with identical length (0.079"), width (0.049"), and maximum seated height (0.022"). PCB footprints are interchangeable.

Q: Does the higher power rating of TNPW0805866KBEEA affect circuit performance?

A: No. Power rating indicates maximum dissipation capability. Actual power dissipation is determined by circuit current and resistance. The electrical characteristics remain identical, so circuit behavior is unchanged.

Q: What is the significance of AEC-Q200 qualification on the substitute part?

A: AEC-Q200 is an automotive industry standard qualification. It indicates the TNPW0805866KBEEA meets automotive reliability and performance requirements. This certification is relevant only if your application requires automotive-grade components.