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HomeProductsResistorsChip Resistor - Surface MountAT0805DRE0723R2L
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AT0805DRE0723R2L - YAGEO

Manufacturer Part Number
AT0805DRE0723R2L
Manufacturer
Yageo
Allelco Part Number
98D-AT0805DRE0723R2L
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
45,866 pcs available, New & Original
Parts Description
RES SMD 23.2 OHM 0.5% 1/8W 0805
Package
0805
Data sheet
AT0805DRE0723R2.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 45866
  • Unit Price: $0.099
  • Subtotal: $0.00

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Specifications

AT0805DRE0723R2L Tech Specifications
YAGEO - AT0805DRE0723R2L technical specifications, attributes, parameters and parts with similar specifications to YAGEO - AT0805DRE0723R2L

Product Attribute Attribute Value
Manufacturer Yageo
Tolerance ±0.5%
Temperature Coefficient ±50ppm/°C
Supplier Device Package 0805
Size / Dimension 0.079" L x 0.049" W (2.00mm x 1.25mm)
Series AT
Resistance 23.2 Ohms
Ratings AEC-Q200
Power (Watts) 0.125W, 1/8W
Product Attribute Attribute Value
Package / Case 0805 (2012 Metric)
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 155°C
Number of Terminations 2
Height - Seated (Max) 0.024" (0.60mm)
Features Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant
Failure Rate -
Composition Thin Film

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8533.21.0030

Frequently Asked Questions(FAQ)

What makes the AT0805DRE0723R2L suitable for automotive applications compared to standard 0805 resistors?
The AT0805DRE0723R2L is certified to AEC-Q200, Yageo's automotive-grade qualification standard, which requires accelerated life testing, thermal cycling validation, and moisture resistance verification. Beyond this certification, the AT0805DRE0723R2L combines anti-sulfur coating with thin-film construction to withstand corrosive environments found in engine bays and underbody locations. The ±50ppm/°C temperature coefficient ensures the 23.2 ohm resistance remains stable across the -55°C to 155°C automotive operating range, maintaining within 0.5% tolerance even during thermal transients. Standard commercial 0805 resistors lack both the environmental coating and the temperature stability required for safety-critical automotive circuits.
How does the ±0.5% tolerance of the AT0805DRE0723R2L affect precision current sensing circuit design?
At 23.2 ohms, the ±0.5% tolerance on the AT0805DRE0723R2L translates to a resistance variation band of ±0.116 ohms (22.084–24.316 ohms). In current sensing applications using Ohm's law (V = I × R), this tolerance uncertainty directly propagates into measurement error. For a 1A sense current, voltage across the AT0805DRE0723R2L would range 22.084–24.316 mV instead of a nominal 23.2 mV, representing ±5.2% voltage uncertainty. To compensate, designers typically employ ratiometric calibration or adjust signal conditioning gain by selecting the AT0805DRE0723R2L in matched pairs from the same manufacturing batch. The thin-film construction of the AT0805DRE0723R2L provides superior tolerance stability compared to thick-film alternatives, reducing drift during thermal cycling and improving repeatability in production.
What is the maximum continuous power dissipation of the AT0805DRE0723R2L, and how does this affect PCB thermal layout?
The AT0805DRE0723R2L is rated at 0.125W (1/8W), which at 23.2 ohms corresponds to a maximum sustained current of approximately 73.5 mA. Continuous operation at full power rating produces internal heating; without adequate PCB heat spreading, junction temperature can exceed the 155°C upper limit. The AT0805DRE0723R2L in 0805 form factor provides limited thermal contact area (2.00 × 1.25 mm footprint), so copper pour connectivity and via-stitching to internal layers become critical. In battery-powered or automotive supply circuits operating at 3.3V or 5V, designers must verify actual power dissipation during peak current events. For example, a 100 mA pulse through the AT0805DRE0723R2L dissipates 0.232W instantaneously—exceeding the rated 0.125W—which is acceptable only for brief transients followed by cooling intervals.
How does the MSL-1 moisture sensitivity rating of the AT0805DRE0723R2L simplify supply chain and assembly logistics?
MSL-1 (Moisture Sensitivity Level 1) on the AT0805DRE0723R2L means unlimited floor-life exposure without desiccant storage requirements. Unlike MSL-2 or MSL-3 components that demand sealed desiccant bags and reflow-window tracking, the AT0805DRE0723R2L can remain in open-reel tape on the assembly floor indefinitely without baking before soldering. This reduces material handling overhead, eliminates pre-reflow oven cycles, and lowers the risk of moisture-induced solder voids or post-reflow delamination. For high-volume automotive or industrial manufacturers, the AT0805DRE0723R2L's MSL-1 status reduces non-conformance events and simplifies traceability documentation, as no moisture ingress history must be tracked across storage intervals.
Why is thin-film construction preferred over thick-film for the AT0805DRE0723R2L in precision analog and power-distribution circuits?
Thin-film resistors like the AT0805DRE0723R2L are manufactured by vacuum-depositing a resistive film onto ceramic substrates, yielding superior tolerance control (±0.5% versus ±1% or ±5% for thick-film) and significantly lower temperature coefficient (±50ppm/°C versus ±100–200ppm/°C). This precision enables the AT0805DRE0723R2L to maintain accurate 23.2 ohm performance across automotive temperature swings without trim calibration. In power-distribution applications (e.g., current-limit resistors for LED drivers or load-share networks), the AT0805DRE0723R2L's low TC ensures each parallel path carries proportional current without compensation networks. Thin-film construction also exhibits faster voltage settling and lower noise compared to thick-film, making the AT0805DRE0723R2L suitable for high-frequency switching circuits and analog signal chains where parasitic effects influence performance.
What derating factors should be applied when the AT0805DRE0723R2L operates continuously near the 155°C upper temperature limit?
Resistor power ratings are typically specified at 70°C ambient or 25°C reference. For the AT0805DRE0723R2L, operation at 155°C requires deration based on the component's thermal model. A conservative approach applies 50% power deration at the upper temperature extreme, reducing the AT0805DRE0723R2L's effective rating from 0.125W to approximately 0.0625W. At this reduced power, maximum sustainable current drops to roughly 52 mA across the 23.2 ohm resistance. In automotive underhood circuits, designers must account for ambient temperature rise, self-heating, and nearby heat sources. For the AT0805DRE0723R2L, failure to derate can accelerate resistor degradation, increase offset drift in precision circuits, and trigger premature end-of-life in safety-critical applications. Published automotive design guides recommend applying 40–50% deration at 150°C+ for thin-film resistors like the AT0805DRE0723R2L.
How does the anti-sulfur coating on the AT0805DRE0723R2L protect against automotive corrosive environments?
Sulfur-containing compounds in industrial atmospheres and vehicle exhaust can corrode unprotected resistor terminations and solder joints, increasing contact resistance over time. The AT0805DRE0723R2L incorporates an anti-sulfur protective coating—typically a nickel or palladium barrier layer—that prevents hydrogen sulfide and elemental sulfur from reacting with the termination metal. In accelerated corrosion testing (per AEC-Q200), the AT0805DRE0723R2L demonstrates negligible resistance drift after thousands of hours in sulfur-rich environments, whereas uncoated alternatives show contact resistance increases exceeding 10–20%. For automotive circuits operating in high-sulfur regions (industrial zones, coastal areas, or heavy-traffic corridors), the AT0805DRE0723R2L's anti-sulfur design directly translates into long-term reliability and reduced warranty returns related to intermittent high-resistance faults.
What are the practical differences between the AT0805DRE0723R2L and the RN732ATTD23R2D100 substitute when selecting for new designs?
Both the AT0805DRE0723R2L and the listed substitute RN732ATTD23R2D100 share the 0805 package, 23.2 ohm nominal value, ±0.5% tolerance, and thin-film composition. However, substitution requires verification of identical power ratings (0.125W), temperature coefficient (±50ppm/°C), and AEC-Q200 certification. The AT0805DRE0723R2L may differ in anti-sulfur coating formulation, manufacturing process node, or thermal characteristics from alternatives. For new automotive designs, the AT0805DRE0723R2L should be the primary selection; substitutes are acceptable only for legacy designs where supply constraints force qualification of alternatives. Cross-qualification of the AT0805DRE0723R2L against substitutes requires side-by-side testing in the target application circuit, especially in precision analog paths where small variations in temperature coefficient or noise floor propagate into system error.
How should the AT0805DRE0723R2L be applied in current-sense networks for automotive battery management systems?
In battery management systems (BMS), shunt resistors like the AT0805DRE0723R2L are placed in series with battery packs to measure discharge current by monitoring voltage drop. The 23.2 ohm value is typical for moderate-current packs (5–10A); at 10A, the AT0805DRE0723R2L generates 232 mV sense voltage, which can be directly digitized by 12-bit ADCs without pre-amplification. The ±0.5% tolerance of the AT0805DRE0723R2L ensures sense voltage repeats within ±1.16 mV across a population, minimizing calibration spread at assembly. The ±50ppm/°C temperature coefficient of the AT0805DRE0723R2L is critical in BMS; over a 100°C temperature excursion (–55°C to +45°C battery operating range), the 23.2 ohm resistance drifts by approximately ±0.232 ohms, introducing ±2.32 mV measurement error at 10A. Firmware compensation can correct this drift if the AT0805DRE0723R2L's temperature coefficient is characterized during production calibration.
What soldering and rework considerations apply to the AT0805DRE0723R2L in high-reliability automotive production?
The AT0805DRE0723R2L's 0805 form factor and MSL-1 rating simplify initial assembly; however, rework carries risks in thin-film resistor designs. Repeated reflow exposure can degrade the resistive film and increase leakage current, particularly if solder temperature overshoots specifications. For the AT0805DRE0723R2L, peak reflow temperature should not exceed 260°C, and the component should experience no more than two reflow cycles. Rework heating of the AT0805DRE0723R2L requires controlled atmosphere (nitrogen-rich) to prevent oxidation of the termination barrier layer. In automotive production, visual inspection post-solder on the AT0805DRE0723R2L should verify solder fillet coverage and continuity; electrical testing with resistance measurement at temperature extremes validates that the AT0805DRE0723R2L has not experienced latent damage. Design-for-testability practices often include access nodes across the AT0805DRE0723R2L for in-circuit testing, ensuring production quality before vehicle integration.
How does the AT0805DRE0723R2L compare to wire-wound resistors for high-current automotive applications?
Wire-wound resistors offer higher continuous power ratings (0.5–2W in small packages) but exhibit non-linear frequency response due to parasitic inductance, which limits suitability for high-frequency switching circuits. The AT0805DRE0723R2L, despite its 0.125W rating, provides superior high-frequency performance due to negligible inductance in the thin-film construction. In DC-biased current-sense applications (motor controllers, solenoid drivers), wire-wound alternatives may handle higher continuous current; however, the AT0805DRE0723R2L's lower TC and tolerance make it preferable when accurate current measurement is required. For parallel current-sharing networks in multi-phase automotive converters, the AT0805DRE0723R2L's ±0.5% tolerance ensures balanced phase currents without external trim networks, whereas wire-wound components with ±5–10% tolerance require matched-pair binning. The AT0805DRE0723R2L's compact 0805 footprint also enables higher component density, reducing PCB real estate in space-constrained underbody electronics.
What environmental stress screening procedures validate the AT0805DRE0723R2L for safety-critical automotive modules?
AEC-Q200 qualification of the AT0805DRE0723R2L includes thermal cycling (–55°C to +155°C, typically 500 cycles) to detect delamination or film cracking, humidity stress testing (85°C/85% RH for 500 hours) to verify anti-sulfur and moisture-resistant coatings, and salt-fog exposure to confirm corrosion resistance. For modules deployed in safety-critical functions (brake systems, steering control), additional customer-specific ESS may include vibration testing per MIL-STD-810 or IEC 60068, accelerated life testing at elevated temperature/humidity, and electrical parameter drift monitoring over extended periods. Incoming inspection of the AT0805DRE0723R2L should include 100% visual examination, parametric testing (resistance measurement and temperature coefficient verification at min/typ/max temperature points), and statistical process control monitoring of manufacturing variance. Many Tier-1 automotive suppliers audit YAGEO's production records for the AT0805DRE0723R2L to confirm batch-to-batch consistency and traceability compliance with automotive supply-chain standards.
What role does the ±50ppm/°C temperature coefficient of the AT0805DRE0723R2L play in precision feedback networks for automotive regulators?
In linear or switching regulators, the voltage divider feedback network sets output voltage via resistor ratios. If both resistors (including the AT0805DRE0723R2L) have identical temperature coefficients, their ratio remains constant despite temperature changes, preserving output voltage accuracy. However, if the AT0805DRE0723R2L is paired with a thick-film resistor exhibiting ±200ppm/°C, the mismatch in TC (150ppm/°C difference) causes feedback ratio drift. Over a 100°C temperature range, the AT0805DRE0723R2L's 23.2 ohm value drifts by approximately ±0.116 ohms, while a poorly matched divider resistor may drift by ±1 ohm, inducing output voltage error of 50–100 mV in a 3.3V supply. Automotive regulators operating from –40°C to +125°C underhood require matched TC resistor pairs; the AT0805DRE0723R2L's ±50ppm/°C ensures that paired thin-film designs maintain <1% output regulation across the full temperature range, meeting automotive powertrain controller supply specifications.

Parts with Similar Specifications

The three parts on the right have similar specifications to YAGEO AT0805DRE0723R2L

Product Attribute AT0805DRE07232KL AT0805DRE0723R7L AT0805DRE07237RL AT0805DRE0723K2L
Part Number AT0805DRE07232KL AT0805DRE0723R7L AT0805DRE07237RL AT0805DRE0723K2L
Manufacturer YAGEO YAGEO YAGEO YAGEO
Failure Rate - - - -
Composition - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Height - Seated (Max) - - - -
Series - - - -
Ratings - - - -
Power (Watts) - - - -
Tolerance - - - -
Features - - - Simultaneous Sampling
Temperature Coefficient - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Size / Dimension - - - -
Resistance - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Number of Terminations - - - -

AT0805DRE0723R2L Datasheet PDF

Download AT0805DRE0723R2L pdf datasheets and YAGEO documentation for AT0805DRE0723R2L - YAGEO.

Datasheets
AT Series, Automotive.pdf

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AT0805DRE0723R2L Image

AT0805DRE0723R2L

YAGEO
98D-AT0805DRE0723R2L

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