Equivalent & Substitute Parts for 9T08052A6491BAHFT

Part Overview

The 9T08052A6491BAHFT is a 6.49 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated at 0.125W (1/8W). Manufactured by YAGEO under the RT series, this component is classified as obsolete. Due to its obsolete status, identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

9T08052A6491BAHFT

YAGEOIn Stock: 10289T08052A6491BAHFT Datasheet

Current PartRFQ

RT0805BRD076K49L

YAGEOIn Stock: 7996RT0805BRD076K49L Datasheet

DirectRFQ

TNPW08056K49BETA

Vishay DaleIn Stock: 1022TNPW08056K49BETA Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 9T08052A6491BAHFT is determined by strict equivalence across the following parameters:

• Resistance value: 6.49 kOhms (exact match required)
• Tolerance: ±0.1% (exact match required)
• Power rating: 0.125W / 1/8W (exact match required)
• Package: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Two substitute parts meet these criteria and are classified as follows:

Direct Substitute: RT0805BRD076K49L (YAGEO, Active status)

Upgrade Substitute: TNPW08056K49BETA (Vishay Dale, Active status, Military grade)

Parameter Comparison

Engineering Selection Recommendations

RT0805BRD076K49L is the primary direct substitute for the obsolete 9T08052A6491BAHFT. Both components are manufactured by YAGEO within the RT series and share identical electrical specifications and package dimensions. RT0805BRD076K49L holds active product status and is ROHS3 compliant, making it suitable for applications requiring regulatory compliance. The improved temperature coefficient (±25ppm/°C versus ±100ppm/°C) provides enhanced stability across the operating temperature range.

TNPW08056K49BETA is an upgrade substitute manufactured by Vishay Dale under the TNPW military-grade series. This component meets all core electrical and mechanical requirements and is classified as active. The military-grade designation indicates enhanced reliability characteristics. However, the operating temperature range is limited to -55°C ~ 125°C (versus -55°C ~ 155°C for the original part), which may restrict use in applications requiring the full upper temperature specification. REACH status is listed as affected, requiring evaluation against specific regulatory requirements.

Selection between these substitutes depends on compliance requirements, operating temperature specifications, and supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can RT0805BRD076K49L be used as a direct replacement for 9T08052A6491BAHFT?

A: Yes. Both components share identical resistance (6.49 kOhms), tolerance (±0.1%), power rating (0.125W), package (0805), composition (thin film), and moisture sensitivity level (1). Physical dimensions and termination count are equivalent. The primary difference is product status (active versus obsolete) and improved RoHS compliance.

Q: What are the differences between RT0805BRD076K49L and TNPW08056K49BETA?

A: Both are functionally equivalent in resistance, tolerance, power rating, and package. Key differences include: manufacturer (YAGEO versus Vishay Dale), temperature coefficient (±25ppm/°C for both, but TNPW is military-grade), maximum operating temperature (155°C versus 125°C), RoHS status (ROHS3 compliant versus non-compliant), and REACH status (unaffected versus affected). Height when seated differs slightly (0.024" versus 0.022").

Q: Is the operating temperature range difference between substitutes significant?

A: The original 9T08052A6491BAHFT and RT0805BRD076K49L both support -55°C ~ 155°C. TNPW08056K49BETA is limited to -55°C ~ 125°C. Selection depends on whether your application requires operation above 125°C. If the design operates within -55°C ~ 125°C, both substitutes are suitable.

Q: Does packaging format affect electrical performance?

A: No. The original part is supplied in bulk packaging, while both substitutes are supplied in Tape & Reel (TR) format. Packaging format does not affect electrical characteristics or performance. Selection depends on assembly process requirements and inventory management practices.

Q: Are there compliance considerations when selecting a substitute?

A: Yes. RT0805BRD076K49L is ROHS3 compliant and REACH unaffected, making it suitable for applications with strict regulatory requirements. TNPW08056K49BETA is RoHS non-compliant and REACH affected. Verify compliance requirements against your specific application and regional regulations before final selection.