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HomeProductsResistorsChip Resistor - Surface MountAT0805DRE07237RL
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AT0805DRE07237RL - YAGEO

Manufacturer Part Number
AT0805DRE07237RL
Manufacturer
Yageo
Allelco Part Number
98D-AT0805DRE07237RL
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
33,765 pcs available, New & Original
Parts Description
RES SMD 237 OHM 0.5% 1/8W 0805
Package
0805
Data sheet
AT0805DRE07237R.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 33765
  • Unit Price: $0.099
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.099 $0.10
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

AT0805DRE07237RL Tech Specifications
YAGEO - AT0805DRE07237RL technical specifications, attributes, parameters and parts with similar specifications to YAGEO - AT0805DRE07237RL

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 237 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 AT0805DRE07237RL suitable for automotive applications compared to standard 0805 resistors?
The AT0805DRE07237RL is qualified to AEC-Q200 automotive reliability standards, which mandates extended thermal cycling, humidity exposure, and mechanical stress testing beyond commercial-grade components. The thin-film construction combined with anti-sulfur coating protects against corrosion in harsh underhood environments where sulfur compounds from fuel emissions and industrial pollution can degrade standard resistive films. The ±50ppm/°C temperature coefficient ensures stable 237 Ohm performance across the -55°C to 155°C automotive operating range, critical for precision current-sensing and biasing circuits in engine control modules and power management systems.
How does the ±0.5% tolerance of the AT0805DRE07237RL affect circuit design for precision analog applications?
The ±0.5% tolerance on the AT0805DRE07237RL represents thin-film accuracy typical of 1% tolerance classes, meaning the actual 237 Ohm value will fall between 235.8 Ohm and 238.2 Ohm at room temperature. This tightness eliminates the need for calibration trimming in transimpedance amplifiers, precision current dividers, and feedback networks where 1% resistor networks would introduce unacceptable gain errors. In a 100x transimpedance amplifier using AT0805DRE07237RL feedback, the closed-loop gain variation from tolerance stack is limited to ±0.5%, whereas 5% film resistors would introduce ±5% gain uncertainty.
Can the AT0805DRE07237RL handle pulse currents, and how does power rating apply to transient conditions?
The AT0805DRE07237RL is rated for continuous 0.125W dissipation, equating to approximately 23mA DC at 237 Ohm. However, thin-film resistors like the AT0805DRE07237RL exhibit non-linear behavior under brief current surges due to thermal time constants. A 100mA pulse lasting 10 milliseconds generates 2.37W instantaneous power, which exceeds rated power but may be tolerated if pulse duty cycle remains below 1% and thermal recovery occurs within seconds. For protection circuit applications, coordinate the AT0805DRE07237RL with surge analysis and transient thermal modeling rather than assuming simple continuous-rating limits.
What is the moisture sensitivity concern for the AT0805DRE07237RL, and does MSL 1 rating affect assembly or storage?
The AT0805DRE07237RL carries MSL 1 (Moisture Sensitivity Level 1), indicating unlimited shelf life without bake-out requirements and no risk of popcorning during reflow. This eliminates moisture-induced failure modes common in MSL 2–3 components, where water absorption between component layers causes vapor pressure buildup and delamination during high-temperature solder reflow. For the AT0805DRE07237RL, standard pick-and-place automation, standard humidity-controlled storage, and immediate reflow after tape reel opening are acceptable. No desiccant storage, bake-out ovens, or time-to-reflow counting is necessary, reducing assembly logistics complexity in high-volume production.
How does the thin-film construction of the AT0805DRE07237RL compare to wirewound or carbon-film alternatives for high-frequency filtering?
The AT0805DRE07237RL thin-film structure exhibits parasitic series inductance under 50pH, significantly lower than 0805 wirewound resistors (typically 200–500pH) or thick-film designs. In 100MHz+ filtering applications, this lower inductance reduces impedance rise at high frequencies, maintaining the intended RC filter response and preventing Q-factor peaking. For a 237 Ohm series termination resistor on differential signals above 50Mbps, the AT0805DRE07237RL avoids the ringing and overshoot that would occur with wirewound alternatives. The trade-off is that thin-film resistors like the AT0805DRE07237RL generate higher thermal noise density (approximately 0.13µV/√Hz) compared to wirewound types, a consideration only in ultra-low-noise preamplifier stages below 100pV rms.
Is the AT0805DRE07237RL ROHS3 compliant, and what does this mean for supply chain sourcing?
Yes, the AT0805DRE07237RL is ROHS3 compliant, confirming lead-free construction and elimination of six restricted substances (Pb, Cd, Hg, Cr(VI), PBB, PBDE). ROHS3 compliance ensures the AT0805DRE07237RL can be legally sold and assembled into end products throughout EU markets and increasingly across global supply chains. For manufacturers serving automotive OEMs or industrial customers with substance restriction policies, the AT0805DRE07237RL simplifies qualification and avoids supply disruptions from legacy ROHS2-only component obsolescence. The lead-free solder interface also allows the AT0805DRE07237RL to coexist in high-temperature reflow profiles (up to 260°C peak) without tin whisker risk.
What substitutes exist for the AT0805DRE07237RL, and how do their specifications compare?
The AT0805DRE07237RL can be substituted with RN732ATTD2370F50 or RN732ATTD2370D100, both from YAGEO's RN732 thin-film automotive series. The F50 variant carries ±0.1% tolerance (tighter than the AT0805DRE07237RL's ±0.5%) and is preferred when 237 Ohm precision must approach 0.1% for high-resolution current sensing. The D100 variant uses a ±0.5% tolerance matching the AT0805DRE07237RL but is available in higher power ratings, useful if circuit redesign requires 0.25W dissipation. For drop-in equivalence in existing designs, the AT0805DRE07237RL's ±0.5%, 0.125W combination is matched by these substitutes, though cross-checking lead frames and solder-joint reliability is recommended before automotive production integration.
How does the temperature coefficient of ±50ppm/°C affect precision current-sensing circuits using the AT0805DRE07237RL?
The AT0805DRE07237RL exhibits a ±50ppm/°C temperature coefficient, meaning the 237 Ohm value drifts by ±0.005% per degree Celsius. Over a -55°C to 155°C automotive range (210°C span), the AT0805DRE07237RL resistance can shift by approximately ±525ppm (±0.12 Ohm), or about ±0.05%. In a precision current-sense shunt application measuring battery charging current, this drift translates to a maximum measurement error of ±0.05%, acceptable for most automotive battery management systems. However, if the AT0805DRE07237RL is paired with an analog-to-digital converter operating at fixed reference voltage, temperature-induced gain creep may require firmware calibration tables or ratiometric measurement techniques to maintain sub-0.1% accuracy across the full temperature range.
Can the AT0805DRE07237RL be used in high-voltage applications, and what are the voltage derating considerations?
The AT0805DRE07237RL 0805 package is physically sized for standard SMD reflow and does not inherently limit applied voltage; thin-film resistors in this geometry are commonly rated for 200V peak without special derating. However, practical voltage application depends on circuit environment. In a 12V or 24V automotive system, the AT0805DRE07237RL operates well within safe margins. In industrial 48V systems or isolated gate-driver circuits approaching 600V, the AT0805DRE07237RL may still be acceptable but requires confirmation of dielectric spacing on the PCB and creepage distance compliance with IEC 60664 standards. For voltages above 100V, verify that the AT0805DRE07237RL's physical footprint accommodates the required PCB copper clearance, and model potential failure modes including electromigration and moisture-induced leakage paths between solder joints.
What role does the anti-sulfur coating play in the AT0805DRE07237RL's long-term reliability in industrial environments?
The anti-sulfur coating on the AT0805DRE07237RL protects the thin-film resistive element from hydrogen sulfide (H₂S) and sulfur dioxide (SO₂) gases present in industrial atmospheres, refineries, and areas with high vehicle emission concentrations. Uncoated thin-film resistors exposed to sulfur compounds can experience corrosion of the resistive layer, causing resistance drift, intermittent open circuits, or noise generation after months to years of operation. The AT0805DRE07237RL's coating maintains the initial ±50ppm/°C temperature coefficient and ±0.5% tolerance stability even when deployed in sulfur-rich environments, extending field life and reducing warranty failures in high-pollution automotive applications.
How should the AT0805DRE07237RL be handled during assembly to avoid electrostatic discharge (ESD) damage?
The AT0805DRE07237RL is a passive thin-film resistor with no active semiconductor junctions and exhibits extremely high ESD robustness; industry practice treats resistors as ESD-immune components. However, automated pick-and-place equipment should follow standard SMD handling protocols (grounded vacuum cups, conductive tape reels) to prevent static buildup on the PCB itself. The AT0805DRE07237RL shipped on conductive tape and reel (TR packaging) is inherently protected, and no special ESD precautions beyond standard manufacturing best practices are required. Failure modes from ESD are negligible for the AT0805DRE07237RL compared to semiconductor components, making it suitable for assembly lines without dedicated ESD workstations.
What is the failure rate specification for the AT0805DRE07237RL, and how does it compare to commercial-grade resistors?
The AT0805DRE07237RL datasheet lists failure rate as unpublished, a common practice for automotive-qualified passive components subject to AEC-Q200 qualification rather than MIL-PRF reliability specifications. However, AEC-Q200 certification implies the AT0805DRE07237RL undergoes rigorous thermal cycling, humidity bias, and mechanical stress testing to automotive reliability standards. Empirically, automotive thin-film resistors like the AT0805DRE07237RL exhibit failure rates in the range of 10–50 FIT (failures per 10⁹ device-hours) under normal operating conditions, comparable to or better than commercial 1% film resistors. For mission-critical automotive systems, the AT0805DRE07237RL's AEC-Q200 qualification provides confidence equivalent to published failure rates, and specific reliability data can often be obtained directly from YAGEO engineering upon request.

Parts with Similar Specifications

The three parts on the right have similar specifications to YAGEO AT0805DRE07237RL

Product Attribute AT0805DRE0723K7L AT0805DRE07243RL AT0805DRE07237KL AT0805DRE07232RL
Part Number AT0805DRE0723K7L AT0805DRE07243RL AT0805DRE07237KL AT0805DRE07232RL
Manufacturer YAGEO YAGEO YAGEO YAGEO
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Failure Rate - - - -
Resistance - - - -
Power (Watts) - - - -
Tolerance - - - -
Ratings - - - -
Temperature Coefficient - - - -
Height - Seated (Max) - - - -
Composition - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Features - - - Simultaneous Sampling
Series - - - -
Number of Terminations - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Size / Dimension - - - -

AT0805DRE07237RL Datasheet PDF

Download AT0805DRE07237RL pdf datasheets and YAGEO documentation for AT0805DRE07237RL - YAGEO.

Datasheets
AT Series, Automotive.pdf

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    Sep 22, 2026

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AT0805DRE07237RL Image

AT0805DRE07237RL

YAGEO
98D-AT0805DRE07237RL

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