Equivalent & Substitute Parts for 9T08052A54R9DAHFT

Part Overview

The 9T08052A54R9DAHFT is a 54.9 Ohm ±0.5% 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

9T08052A54R9DAHFT

YAGEOIn Stock: 7889T08052A54R9DAHFT Datasheet

Current PartRFQ

RT0805DRD0754R9L

YAGEOIn Stock: 826RT0805DRD0754R9L Datasheet

DirectRFQ

TNPW080554R9BETA

Vishay DaleIn Stock: 886TNPW080554R9BETA Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 9T08052A54R9DAHFT is determined by the following critical parameters:

• Resistance Value: 54.9 Ohms (exact match required)
• Package / Case: 0805 (2012 Metric) (physical and electrical compatibility)
• Power Rating: 0.125W minimum (0.125W or higher acceptable)
• Composition: Thin Film (maintains electrical characteristics)
• Operating Temperature Range: Must encompass or match -55°C ~ 155°C
• Terminations: 2 (standard for chip resistors)

Substitute parts are grouped into two categories:

Direct Equivalent: RT0805DRD0754R9L (YAGEO) — identical electrical specifications with active product status and improved RoHS compliance.

Upgrade Substitute: TNPW080554R9BETA (Vishay Dale) — enhanced tolerance (±0.1% vs ±0.5%) and military-grade composition, maintaining all critical parameters with active product status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): Select RT0805DRD0754R9L. This part maintains identical electrical specifications to the 9T08052A54R9DAHFT while offering active product status, improved RoHS3 compliance, and superior temperature coefficient performance (±25ppm/°C vs ±100ppm/°C). Tape & Reel packaging supports automated assembly processes.

For Enhanced Performance Applications: Select TNPW080554R9BETA. This Vishay Dale military-grade component provides tighter tolerance (±0.1%) and improved temperature stability. Note that the operating temperature upper limit is 125°C (versus 155°C for the original part), which may restrict use in high-temperature applications. RoHS non-compliance status should be evaluated against project requirements.

Compliance Considerations: RT0805DRD0754R9L is the only substitute meeting ROHS3 compliance. If RoHS compliance is mandatory, this part is the required selection. TNPW080554R9BETA carries REACH Affected status, requiring compliance verification for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can RT0805DRD0754R9L be used as a direct drop-in replacement for 9T08052A54R9DAHFT?

A: Yes. Both parts share identical resistance (54.9 Ohms), tolerance (±0.5%), power rating (0.125W), package (0805), and operating temperature range (-55°C ~ 155°C). Physical dimensions are equivalent, enabling direct PCB substitution.

Q: What is the primary advantage of TNPW080554R9BETA over the direct equivalent?

A: TNPW080554R9BETA offers tighter tolerance (±0.1% vs ±0.5%) and superior temperature coefficient (±25ppm/°C vs ±100ppm/°C), resulting in improved accuracy and stability across temperature variations. Military-grade composition provides enhanced reliability for demanding applications.

Q: Are there temperature limitations when using TNPW080554R9BETA?

A: Yes. TNPW080554R9BETA operates to 125°C maximum, compared to 155°C for the original part. Applications requiring operation above 125°C must use RT0805DRD0754R9L or the original 9T08052A54R9DAHFT.

Q: What packaging formats are available for these substitutes?

A: RT0805DRD0754R9L and TNPW080554R9BETA are supplied in Tape & Reel (TR) format, suitable for automated pick-and-place assembly. The original 9T08052A54R9DAHFT is available in bulk packaging.

Q: Does RoHS compliance affect component selection?

A: If RoHS3 compliance is required, RT0805DRD0754R9L is the only compliant option among the three parts. The original 9T08052A54R9DAHFT and TNPW080554R9BETA are RoHS non-compliant and must be evaluated against specific project regulatory requirements.

Q: Are all three parts physically compatible with the same PCB footprint?

A: Yes. All three parts use the 0805 (2012 Metric) package with identical length and width (0.079" L x 0.049" W). Height differences are minimal (0.024" vs 0.022"), presenting no practical PCB assembly constraints.