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HomeProductsResistorsChip Resistor - Surface MountAT0805DRE07237KL
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AT0805DRE07237KL - YAGEO

Manufacturer Part Number
AT0805DRE07237KL
Manufacturer
Yageo
Allelco Part Number
98D-AT0805DRE07237KL
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
44,280 pcs available, New & Original
Parts Description
RES SMD 237K OHM 0.5% 1/8W 0805
Package
0805
Data sheet
AT0805DRE07237K.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 44280
  • 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

AT0805DRE07237KL Tech Specifications
YAGEO - AT0805DRE07237KL technical specifications, attributes, parameters and parts with similar specifications to YAGEO - AT0805DRE07237KL

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 kOhms
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 are the key differences between the AT0805DRE07237KL and its thin-film resistor alternatives like the RT0805DRE07237KL?
The AT0805DRE07237KL uses thin-film construction with anti-sulfur coating and AEC-Q200 automotive qualification, distinguishing it from thick-film alternatives. While both the AT0805DRE07237KL and RT0805DRE07237KL share the same 237 kOhm resistance and 0805 package, the AT series delivers ±50ppm/°C temperature coefficient stability compared to looser specifications in standard thick-film versions. The AT0805DRE07237KL's thin-film composition provides superior frequency response and lower parasitic inductance, making it preferable for precision analog circuits, sensor signal conditioning, and high-frequency divider networks where drift over temperature would compromise measurement accuracy.
Can the AT0805DRE07237KL handle automotive environmental stress without performance degradation?
The AT0805DRE07237KL is specifically designed for automotive applications through AEC-Q200 qualification, which validates performance across -55°C to 155°C operating range with controlled thermal cycling, humidity resistance (MSL Level 1), and moisture-resistant construction. The anti-sulfur coating on the AT0805DRE07237KL protects against corrosion in high-sulfur environments encountered in industrial and automotive settings. The ±0.5% tolerance and ±50ppm/°C temperature coefficient remain stable throughout the full automotive temperature range, ensuring voltage divider ratios, filter cutoff frequencies, and sensor gain remain within acceptable bounds during engine cold-start and thermal transient events.
How does the AT0805DRE07237KL's 0.125W power rating affect thermal management in compact PCB layouts?
The AT0805DRE07237KL's 0.125W (1/8W) rating in the compact 0805 (2.00mm × 1.25mm) package creates thermal density constraints. At maximum current through 237 kOhms—approximately 22.7mA—the AT0805DRE07237KL dissipates roughly 122mW, operating near 97% of rated power. This sustained dissipation requires adequate copper area and thermal vias to prevent localized PCB temperature rise above ambient by more than 30–50°C. In dense automotive control circuits, the AT0805DRE07237KL should be positioned away from other heat sources, and supply current paths should use minimum trace resistance to reduce parasitic heating.
Is the AT0805DRE07237KL compatible with reflow soldering in high-volume automotive manufacturing?
The AT0805DRE07237KL's Tape & Reel packaging and MSL Level 1 rating (unlimited floor life) make it fully compatible with automated pick-and-place and infrared or convection reflow processes. The thin-film composition of the AT0805DRE07237KL exhibits stable resistance during standard reflow profiles (peak temperature 260°C, 10–30 second duration). No special moisture baking is required before assembly of the AT0805DRE07237KL, reducing manufacturing complexity. The 0.60mm maximum seated height accommodates wave-soldering secondary operations if needed, and the AT0805DRE07237KL maintains AEC-Q200 thermal shock compliance through multiple reflow cycles.
How does the ±0.5% tolerance of the AT0805DRE07237KL compare to industry standards for high-precision analog circuits?
The AT0805DRE07237KL's ±0.5% tolerance represents thin-film precision commonly found in medical instrumentation and industrial measurement systems, considerably tighter than standard thick-film tolerances (±5–10%). For a 237 kOhm value, the AT0805DRE07237KL tolerance band spans ±1.185 kOhms, critical for precision voltage dividers, transimpedance amplifier feedback networks, and programmable gain circuits where matching accuracy directly impacts overall system precision. When paired with equally tight tolerance capacitors, the AT0805DRE07237KL enables first-pass filter frequency accuracy within ±1–2%, eliminating post-trim calibration loops in automotive sensor conditioning modules.
What thermal drift behavior should be expected from the AT0805DRE07237KL across automotive temperature extremes?
The AT0805DRE07237KL specifies ±50ppm/°C temperature coefficient, translating to maximum ±10ppm total resistance change across the -55°C to 155°C operating window (210°C span). For the AT0805DRE07237KL's 237 kOhm value, this represents worst-case drift of ±237Ω over full temperature range. In voltage divider applications, this drift produces output voltage shift of approximately ±0.1% at the divider node, acceptable for most automotive control feedback loops but marginal for precision thermocouple signal conditioning without software calibration. The AT0805DRE07237KL's thin-film resistive layer minimizes resistance-frequency interaction compared to thick-film alternatives, reducing high-frequency measurement errors in sensor signal paths.
Can the AT0805DRE07237KL be substituted with the RN732ATTD2373F50 in existing automotive designs?
Direct substitution between the AT0805DRE07237KL and RN732ATTD2373F50 requires careful validation of package footprint compatibility and power rating equivalence. While both are YAGEO thin-film automotive resistors in the 237 kOhm class, the RN732 series uses different package geometry and may have different moisture sensitivity ratings or temperature coefficient specifications not detailed in the AT0805DRE07237KL datasheet reference. The AT0805DRE07237KL's 0805 SMD form factor and AEC-Q200 qualification should be verified against the RN732 alternative's specifications before PCB layout changes; mechanical fit, reflow profile compatibility, and thermal performance may differ materially.
How does ROHS3 compliance affect material sourcing and long-term availability of the AT0805DRE07237KL?
The AT0805DRE07237KL's ROHS3 Compliant status confirms lead-free tin solder compatibility and absence of restricted substances in the thin-film resistive element and termination metals. This compliance ensures the AT0805DRE07237KL remains available through mainstream automotive supply chains and qualifies for both European and global markets without exemption documentation. REACH Unaffected status indicates the AT0805DRE07237KL contains no substances of very high concern requiring special handling or disclosure, reducing supply chain administrative burden and lowering long-term obsolescence risk compared to legacy resistor technologies.
What precautions are necessary when designing high-impedance sensor circuits with the AT0805DRE07237KL as a bias or load resistor?
At 237 kOhms, the AT0805DRE07237KL creates high-impedance nodes vulnerable to leakage current errors and electromagnetic interference coupling. In sensor signal chains, the AT0805DRE07237KL should be shielded with guard traces at sensor-amplifier input nodes to prevent capacitive coupling of switching noise from adjacent traces. Leakage current through the AT0805DRE07237KL can introduce measurement offset in transimpedance amplifier circuits; the thin-film construction of the AT0805DRE07237KL exhibits lower moisture absorption than thick-film types, reducing humidity-dependent leakage drift. PCB layout should minimize the AT0805DRE07237KL's pad-to-pad distance to ground planes to reduce antenna effects, particularly in automotive radio frequency environments where EMI rejection is critical.
How does the anti-sulfur feature of the AT0805DRE07237KL protect against reliability degradation in industrial automotive applications?
The anti-sulfur coating on the AT0805DRE07237KL prevents corrosion of termination metals and the thin-film resistive element when exposed to sulfurous gases (H₂S, SO₂) common in industrial engine compartments, smelting facilities, and geothermal drilling environments. Without anti-sulfur treatment, standard resistors degrade through sulfidation of nickel contacts and resistance drift exceeding ±10% over 1–2 years. The AT0805DRE07237KL's protective layer maintains contact resistance below 0.1Ω and preserves the specified ±0.5% tolerance and ±50ppm/°C temperature coefficient even in high-corrosion industrial settings, reducing field failure rates and warranty claims in long-lifecycle automotive and industrial control modules.
What is the effective series inductance of the AT0805DRE07237KL in high-frequency filtering applications, and how should layout minimize inductive parasitics?
The AT0805DRE07237KL's thin-film construction typically exhibits 0.3–0.8nH series lead inductance, lower than thick-film equivalents due to more compact termination geometry in the 0805 package. This inductance interacts with parasitic capacitance in the filter network; for a 237 kOhm resistor paired with a 100nF capacitor, the AT0805DRE07237KL's self-resonant frequency occurs near 5–8MHz, acceptable for automotive power supply ripple filtering but marginal for high-speed PWM switching noise rejection. Minimizing the AT0805DRE07237KL's PCB trace length to the capacitor and ground plane, using via stitching on termination pads, and placing the AT0805DRE07237KL directly above the ground plane layer reduces effective series inductance by 30–50%, extending usable filtering bandwidth to 15+ MHz.
In what automotive sensor conditioning circuits is the 237 kOhm value of the AT0805DRE07237KL most commonly applied?
The AT0805DRE07237KL's 237 kOhm value is widely used as a precision load resistor in ratiometric analog sensor interfaces, particularly for 4–20mA industrial transmitter signal conditioning and 0–5V temperature sensor linearization networks. In resistive bridge sensor circuits, the AT0805DRE07237KL serves as a gain-setting feedback resistor paired with a lower value input resistor (10–50 kΩ) to achieve stable 10–50V/V transimpedance gains. The AT0805DRE07237KL's tight ±0.5% tolerance and low temperature drift ensure that sensor gain remains stable across automotive thermal cycles, maintaining measurement accuracy within ±2–3% without software calibration in mass-production applications where per-unit calibration cost is prohibitive.

Parts with Similar Specifications

The three parts on the right have similar specifications to YAGEO AT0805DRE07237KL

Product Attribute AT0805DRE07243KL AT0805DRE0723K7L AT0805DRE07237RL AT0805DRE0723K2L
Part Number AT0805DRE07243KL AT0805DRE0723K7L AT0805DRE07237RL AT0805DRE0723K2L
Manufacturer YAGEO YAGEO YAGEO YAGEO
Series - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Composition - - - -
Number of Terminations - - - -
Power (Watts) - - - -
Temperature Coefficient - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Height - Seated (Max) - - - -
Ratings - - - -
Features - - - Simultaneous Sampling
Failure Rate - - - -
Tolerance - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Resistance - - - -
Size / Dimension - - - -

AT0805DRE07237KL Datasheet PDF

Download AT0805DRE07237KL pdf datasheets and YAGEO documentation for AT0805DRE07237KL - YAGEO.

Datasheets
AT Series, Automotive.pdf

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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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    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.

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2.00kg-3.00kg USD$50.00 - USD$100.00
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AT0805DRE07237KL Image

AT0805DRE07237KL

YAGEO
98D-AT0805DRE07237KL

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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