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HomeProductsResistorsChip Resistor - Surface Mount9T06031A82R5DAHFT
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9T06031A82R5DAHFT - YAGEO

Manufacturer Part Number
9T06031A82R5DAHFT
Manufacturer
Yageo
Allelco Part Number
98D-9T06031A82R5DAHFT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
338,167 pcs available, New & Original
Parts Description
RES SMD 82.5 OHM 0.5% 1/10W 0603
Package
0603
Data sheet
9T06031A82R5DAH.pdf
RoHs Status
 
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Specifications

9T06031A82R5DAHFT Tech Specifications
YAGEO - 9T06031A82R5DAHFT technical specifications, attributes, parameters and parts with similar specifications to YAGEO - 9T06031A82R5DAHFT

Product Attribute Attribute Value
Manufacturer Yageo
Tolerance ±0.5%
Temperature Coefficient ±100ppm/°C
Supplier Device Package 0603
Size / Dimension 0.063" L x 0.031" W (1.60mm x 0.80mm)
Series RT
Resistance 82.5 Ohms
Power (Watts) 0.1W, 1/10W
Product Attribute Attribute Value
Package / Case 0603 (1608 Metric)
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 155°C
Number of Terminations 2
Height - Seated (Max) 0.022" (0.55mm)
Features -
Failure Rate -
Composition Thin Film

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status RoHS non-compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8533.21.0030

Frequently Asked Questions(FAQ)

What are the thermal stability characteristics of the 9T06031A82R5DAHFT, and how does the ±100ppm/°C temperature coefficient affect circuit accuracy across the -55°C to 155°C operating range?
The 9T06031A82R5DAHFT thin film resistor exhibits a temperature coefficient of ±100ppm/°C, which represents moderate thermal drift for precision applications. Across the full -55°C to 155°C operating range (210°C span), the 82.5 ohm nominal value can drift by approximately ±21 milliohms in the worst case. This thermal behavior makes the 9T06031A82R5DAHFT suitable for signal conditioning, transimpedance amplifier feedback networks, and measurement circuits where relative accuracy within tenths of a percent is acceptable, but less ideal for primary reference resistors in precision instrumentation where sub-ppm/°C performance is required. The ±0.5% initial tolerance combines with temperature drift to establish a practical accuracy window of approximately ±0.65% at temperature extremes.
How does the 0.1W power rating of the 9T06031A82R5DAHFT compare to typical current-sensing and signal-conditioning applications, and what are the thermal management considerations in high-density surface-mount layouts?
The 9T06031A82R5DAHFT is rated for 0.1W continuous dissipation in the 0603 package form factor. At 82.5 ohms, this translates to a maximum safe current of approximately 35mA RMS before thermal stress becomes a design concern. In current-sensing networks where the 9T06031A82R5DAHFT serves as a transducer element, the voltage drop under typical 10–20mA operation ranges from 825µV to 1.65mV, making it appropriate for low-noise analog front-ends. However, in dense multilayer PCB assemblies, thermal coupling between adjacent components and solder-reflow profiles can elevate the junction temperature 20–40°C above ambient, effectively reducing the safe power budget to approximately 75–80mW. For applications exceeding these limits, parallel networks or larger package selections become necessary.
Why is the ±0.5% tolerance specification of the 9T06031A82R5DAHFT particularly valuable in precision gain-setting networks, and how does this compare to standard 1% or 5% alternatives?
The 9T06031A82R5DAHFT achieves ±0.5% tolerance through thin-film laser-trimmed technology, enabling predictable gain coefficients in transimpedance amplifiers and programmable gain stages without post-assembly calibration loops. In a transimpedance configuration where the 9T06031A82R5DAHFT forms the feedback element, a ±0.5% tolerance directly translates to ±0.5% gain accuracy when paired with comparably specified input resistors. Standard 1% or 5% resistors would require active trimming or component binning to achieve equivalent performance. The practical benefit emerges in volume production: the 9T06031A82R5DAHFT eliminates the need for trimming firmware or potentiometer adjustments, reducing assembly cost and test time despite higher per-unit component pricing.
What thermal behavior should be anticipated when the 9T06031A82R5DAHFT is populated adjacent to high-power components such as switching regulators or audio amplifiers?
Thermal proximity significantly affects the actual operating point of the 9T06031A82R5DAHFT due to its ±100ppm/°C temperature coefficient. When positioned within 5mm of a power dissipating element, the local PCB temperature can rise 30–60°C above ambient during high-load transients. For an 82.5 ohm value, this translates to an additional ±3–6 milliohm shift beyond the nominal temperature coefficient, potentially compromising measurement accuracy in sensitive signal paths. Layout strategies to mitigate this include: thermal isolation via ground-plane barriers, positioning the 9T06031A82R5DAHFT on the opposite PCB layer from high-current traces, or incorporating thermal mass through copper stitching patterns around the component. In battery-powered applications, the 9T06031A82R5DAHFT benefits from lower ambient temperatures during idle periods, which partially compensates for transient thermal stress.
How do the moisture sensitivity rating (MSL 1) and RoHS non-compliance status of the 9T06031A82R5DAHFT affect component handling, storage, and supply-chain logistics?
The 9T06031A82R5DAHFT carries MSL 1 (unlimited moisture sensitivity level), meaning the component does not require desiccant packaging or time-limited storage after moisture exposure. This significantly simplifies component logistics compared to MSL 2–4 devices that demand dry-bake procedures before reflow. However, the RoHS non-compliant status restricts use in applications subject to RoHS Directive enforcement (EU market, automotive, medical devices) and may create supply-chain complications in vertically integrated OEM environments that mandate RoHS compliance across all component inventories. The 9T06031A82R5DAHFT becomes viable primarily in industrial, aerospace, and commercial applications where RoHS exemptions exist or regulatory pressure is absent. Equivalent RoHS-compliant alternatives (RT0603DRD0782R5L) exist within the same Yageo RT series, requiring schematic and layout review to confirm functional parity before substitution.
What is the practical frequency response limit of the 9T06031A82R5DAHFT in precision measurement circuits, and how does parasitic inductance from the 0603 package affect performance above 10MHz?
The 9T06031A82R5DAHFT, as a thin-film resistor in 0603 form factor, exhibits parasitic series inductance of approximately 0.3–0.5nH, contributing impedance rise at RF frequencies. At 10MHz, this parasitic inductance adds roughly 0.02 ohms of reactive impedance, remaining negligible for most signal conditioning. However, at 100MHz and above, the 9T06031A82R5DAHFT's effective impedance becomes frequency-dependent, introducing phase shift and attenuation in wideband transimpedance stages. For high-speed photodiode amplifiers or RF measurement circuits, the 9T06031A82R5DAHFT is best limited to bias-network and reference-setting roles rather than signal-path feedback elements. In such cases, buried thin-film networks or discrete component arrays with minimized lead lengths become necessary alternatives.
How does the 9T06031A82R5DAHFT perform in automotive underhood and industrial temperature-cycling environments, given the -55°C to 155°C operating range?
The 9T06031A82R5DAHFT is rated to -55°C to 155°C, covering automotive ambient temperatures and industrial setpoints. However, automotive thermal cycling (typically -40°C to +125°C under real-world underhood conditions, with transient peaks to 155°C near power modules) subjects the 9T06031A82R5DAHFT to repeated expansion-contraction stress at solder joints. Thin-film resistors generally exhibit superior thermal-cycling durability compared to carbon-film alternatives due to lower internal stress, but the 0603 package geometry creates mechanical leverage that can propagate cracks in the solder interface after 500–1000 rapid cycles. Reliability testing data for the 9T06031A82R5DAHFT under AEC-Q200 conditions is not widely published; designs requiring automotive qualification should request qualification certificates from Yageo or conduct accelerated thermal-cycling qualification (MIL-STD-202H Test 107 or equivalent).
Can the 9T06031A82R5DAHFT be used as a precision current-sensing element in high-side sensing circuits, and what voltage drop and power dissipation trade-offs emerge?
The 9T06031A82R5DAHFT can function as a high-side current-sense resistor when paired with precision instrumentation amplifiers, provided the op-amp input range accommodates the resulting voltage offset. At 15mA load current, the 9T06031A82R5DAHFT develops approximately 1.24mV across its 82.5 ohm value, requiring instrumentation amplifier input-offset voltage specifications below 100µV to avoid signal-to-noise ratio degradation. The ±0.5% tolerance of the 9T06031A82R5DAHFT enables direct gain calibration without per-unit trimming. However, the ±100ppm/°C temperature coefficient introduces 0.12µV/°C drift per millivolt of sense voltage; in a 20°C operating swing, this generates approximately 30µV of additional noise, potentially exceeding low-noise amplifier performance budgets. For demanding applications, a separate precision reference resistor with tighter temperature tracking (matched pairs with 25ppm/°C coefficient) becomes necessary alongside the 9T06031A82R5DAHFT.
What are the cost and performance trade-offs when substituting the 9T06031A82R5DAHFT with 1% tolerance standard thin-film resistors in volume production?
Standard 1% thin-film 0603 resistors typically cost 60–70% less per unit than the 9T06031A82R5DAHFT, but introduce ±1% initial tolerance and often higher temperature coefficients (±200ppm/°C or greater). In gain-setting applications requiring <0.5% accuracy, the 9T06031A82R5DAHFT eliminates post-assembly trimming overhead. If a design originally specified ±0.5% accuracy to avoid trimming, substituting 1% resistors necessitates either: (a) implementing firmware-based calibration during manufacturing test, adding test-time cost and production complexity, or (b) accepting ±1% performance variation across units, which may violate system-level accuracy budgets. For high-volume productions (>100k units/year), the ±0.5% accuracy of the 9T06031A82R5DAHFT often justifies the component cost premium by eliminating trimming infrastructure; for low-volume or non-critical applications, 1% alternatives dominate the cost equation.
How should the 9T06031A82R5DAHFT be specified in transimpedance amplifier designs to ensure stable operation and minimize gain drift over the full operating temperature range?
The 9T06031A82R5DAHFT serves as the primary feedback element in transimpedance stages, directly setting the transimpedance gain. To minimize gain drift, the 9T06031A82R5DAHFT must be paired with an op-amp having input-offset voltage drift <5µV/°C and input bias-current temperature coefficient <0.5pA/°C. The ±100ppm/°C coefficient of the 9T06031A82R5DAHFT alone contributes ±82.5ppm gain variation across the full temperature range; combined with op-amp drift and parasitic input-stage effects, total gain drift typically reaches ±0.1–0.15% across -55°C to 155°C. Layout strategy requires placing the 9T06031A82R5DAHFT close to the op-amp summing node, minimizing parasitic capacitance and thermal gradients. For lowest-noise performance, a matched-pair approach (secondary precision resistor for gain programming, with thermal management to maintain <5°C temperature difference) improves repeatability but adds component cost. Datasheet verification of the selected op-amp's gain-tempco specifications is essential to confirm system-level accuracy.
What packaging and PCB assembly considerations apply to the 9T06031A82R5DAHFT, particularly regarding solder-reflow profile optimization and land-pattern design?
The 9T06031A82R5DAHFT in 0603 form factor (1.6mm × 0.8mm) is one of the smallest discrete resistor packages and imposes tight constraints on solder-reflow profiles. Thin-film resistors are more sensitive to thermal shock than carbon-film alternatives; rapid temperature ramps (>5°C/second) during lead-free reflow can cause internal stress and parametric drift. Yageo's recommended profile for the 9T06031A82R5DAHFT typically limits peak temperature to 260°C for 10–30 seconds, with ramp rates of 3–5°C/second to avoid mechanical stress on the resistor substrate and termination. Land-pattern design should follow IPC-A-610 guidelines with controlled pad spacing (typically 0.9–1.1mm for 0603 components); undersized pads risk solder bridging during assembly, while oversized pads promote voiding and solder-joint weakness. Thermal-cycling reliability of the 9T06031A82R5DAHFT improves with controlled thermal mass around the solder joints; adding 1mm2 of ground plane copper adjacent to the pads dissipates reflow heat more gradually and reduces solder-joint fatigue.
How does the 9T06031A82R5DAHFT perform in precision analog-to-digital converter input networks, and what are the impedance-matching requirements for accurate signal conditioning?
The 9T06031A82R5DAHFT is suitable for ADC input filtering and impedance-matching networks where the 82.5 ohm value provides moderate source impedance to standard 10–16-bit converters (typically 5–10kohm input impedance). In a simple RC anti-aliasing filter, pairing the 9T06031A82R5DAHFT with a matched capacitor (C = 1/(2πf·Z), where Z = 82.5 ohms) yields a corner frequency of approximately 1.9MHz, appropriate for audio and instrumentation bandwidths. The ±0.5% tolerance of the 9T06031A82R5DAHFT enables direct calculation of filter cutoff frequency without post-assembly tuning. However, if the ADC input stage exhibits significant settling time or charge injection, the 9T06031A82R5DAHFT's parasitic series inductance (0.3–0.5nH) introduces phase lag that can degrade transient response in multiplexed sampling schemes. For multi-channel ADC systems requiring <0.05% gain matching between channels, separate matched-pair resistor networks (rather than individual 9T06031A82R5DAHFT units) provide superior performance but at increased cost.

Parts with Similar Specifications

The three parts on the right have similar specifications to YAGEO 9T06031A82R5DAHFT

Product Attribute 9T06031A82R5CAHFT 9T06031A82R5DBHFT 9T06031A82R5BAHFT 9T06031A82R0DAHFT
Part Number 9T06031A82R5CAHFT 9T06031A82R5DBHFT 9T06031A82R5BAHFT 9T06031A82R0DAHFT
Manufacturer YAGEO YAGEO YAGEO YAGEO
Resistance - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Failure Rate - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Height - Seated (Max) - - - -
Temperature Coefficient - - - -
Power (Watts) - - - -
Composition - - - -
Size / Dimension - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Number of Terminations - - - -
Series - - - -
Tolerance - - - -
Features - - - Simultaneous Sampling

9T06031A82R5DAHFT Datasheet PDF

Download 9T06031A82R5DAHFT pdf datasheets and YAGEO documentation for 9T06031A82R5DAHFT - YAGEO.

Datasheets
Product Selection Guide.pdf

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Evaluation: 10 Articles

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    Sep 22, 2026

    Used for repair of an older automotive ECU. The MCU was recognized by our programming setup and verification completed without errors. The repaired board now starts and communicates normally.

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    Sep 16, 2026

    Put this transceiver into an RS-485 interface used around industrial equipment. Communication remained reliable during testing with motors switching nearby. Good result for the replacement board.

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  • Retr***UWorks
    Aug 31, 2026

    Needed the exact ST10F269Z2Q6 for servicing an older control unit. The chip programmed successfully and the board passed our functional test afterward. Much easier than redesigning around a newer MCU.

  • Andr***PCBLab
    Aug 28, 2026

    I needed this ADC for an older data acquisition board. Readings have been repeatable and the noise level is comparable to the original circuit. Happy with the purchase.

  • Leat***O'Keefe
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    one of my hobbies is skydiving. and when i'm skydiving this works great.

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9T06031A82R5DAHFT Image

9T06031A82R5DAHFT

YAGEO
98D-9T06031A82R5DAHFT

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