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Home Products Resistors Chip Resistor - Surface Mount~~AT0805BRD0782R5L~~

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AT0805BRD0782R5L - YAGEO

Manufacturer Part Number: AT0805BRD0782R5L

Manufacturer: Yageo

Allelco Part Number: 98D-AT0805BRD0782R5L

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 46,436 pcs available, New & Original

Parts Description: RES SMD 82.5 OHM 0.1% 1/8W 0805

Package: 0805

Data sheet: AT0805BRD0782R5.pdf

Datasheets
AT Series, Automotive.pdf

RoHs Status: ROHS3 Compliant

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Specifications

AT0805BRD0782R5L Tech Specifications
YAGEO - AT0805BRD0782R5L technical specifications, attributes, parameters and parts with similar specifications to YAGEO - AT0805BRD0782R5L

Product Attribute	Attribute Value
Manufacturer	Yageo
Tolerance	±0.1%
Temperature Coefficient	±25ppm/°C
Supplier Device Package	0805
Size / Dimension	0.079" L x 0.049" W (2.00mm x 1.25mm)
Series	AT
Resistance	82.5 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 AT0805BRD0782R5L suitable for automotive applications compared to standard thin-film resistors?: The AT0805BRD0782R5L is rated to AEC-Q200 automotive qualification standards, which requires extensive validation of reliability across temperature extremes, mechanical stress, and vibration exposure. Beyond this certification, the resistor incorporates anti-sulfur construction and moisture-resistant properties specifically designed to withstand corrosive automotive environments where hydrogen sulfide and salt spray can degrade standard thin-film surfaces. The ±0.1% tolerance and ±25ppm/°C temperature coefficient ensure stable circuit performance across the -55°C to 155°C operating range typical in underhood and cabin applications.

How does the ±0.1% tolerance of the AT0805BRD0782R5L affect precision analog circuits compared to ±1% or ±5% alternatives?: The AT0805BRD0782R5L's ±0.1% tolerance translates to a maximum deviation of ±0.0825 ohms from the nominal 82.5-ohm value across the entire production batch. In precision analog applications—such as transimpedance amplifiers, current-sense networks, or gain-setting resistor dividers—this tight tolerance eliminates the need for post-assembly trimming or calibration loops that would otherwise be required with ±1% resistors (±0.825 ohm variance). The combination of 0.1% tolerance with a ±25ppm/°C temperature coefficient means that even after a 100°C temperature swing, the AT0805BRD0782R5L exhibits only 0.25% additional drift, maintaining circuit accuracy in temperature-sensitive signal conditioning stages.

Can the AT0805BRD0782R5L replace standard 0805 film resistors in high-frequency signal routing without degradation?: Yes, the AT0805BRD0782R5L maintains performance in high-frequency environments typical of RF and mixed-signal designs. The 0805 package (2.00mm × 1.25mm) and thin-film construction minimize parasitic inductance compared to larger packages, and the resistor's anti-sulfur coating does not introduce lossy surface layers that would increase dielectric absorption at frequencies up to several hundred megahertz. However, the AT0805BRD0782R5L is not optimized for microwave applications; standard thin-film resistors in this class typically exhibit acceptable return loss and insertion phase only below 1 GHz. For circuits requiring impedance matching or distributed filtering above this range, specialized chip resistors with measured RF characteristics should be considered.

What is the practical thermal dissipation profile of the AT0805BRD0782R5L at its rated 1/8W power level?: The AT0805BRD0782R5L is rated for 0.125W continuous dissipation, which corresponds to a maximum current of approximately 39mA at 82.5 ohms (I = √(P/R) = √(0.125/82.5) ≈ 38.9mA). At this power level on a standard PCB with 2oz copper, the AT0805BRD0782R5L will exhibit a junction temperature rise of roughly 60–80°C above ambient, depending on board layout and thermal plane connectivity. In automotive engine bay designs where ambient temperatures reach 85°C, this can approach the component's 155°C maximum rating. For reliable margin, designs carrying sustained currents above 25mA through the AT0805BRD0782R5L should incorporate thermal vias or copper pours beneath the pad to distribute heat and maintain operating temperature at least 20°C below the absolute maximum.

How does the moisture sensitivity level (MSL) rating of the AT0805BRD0782R5L influence storage and assembly procedures?: The AT0805BRD0782R5L carries an MSL-1 rating, which designates unlimited shelf life without requiring desiccant storage or time-to-reflow tracking. This is a significant advantage in supply chain logistics and repair workflows. Unlike MSL-3 or MSL-4 components that mandate moisture bake-out after extended exposure to humid environments, the AT0805BRD0782R5L can be stored in standard laboratory conditions and opened without strict humidity controls. The MSL-1 classification reflects the resistor's robust construction and the effectiveness of its moisture-resistant coating; however, once the component is soldered, the solder joint integrity becomes the moisture barrier, so standard PCB conformal coating practices should still be followed if the end application is exposed to condensing humidity or immersion.

Why is the temperature coefficient of ±25ppm/°C specified as a range rather than a fixed value for the AT0805BRD0782R5L?: The ±25ppm/°C specification for the AT0805BRD0782R5L indicates that individual resistors within the production tolerance band may drift slightly differently with temperature; some may increase by up to 25ppm per degree Celsius while others may decrease by the same amount. This behavior is inherent to thin-film resistor manufacturing and reflects the microscopic thickness and composition variations in the resistive element. For circuit design, this means that if an 82.5-ohm AT0805BRD0782R5L is paired with another resistor in a ratio-critical application (such as a precision current mirror or filter component), the relative temperature drift between the two components determines overall accuracy. Selecting resistors from the same manufacturing batch or tape reel—as offered in the AT0805BRD0782R5L's TR (Tape & Reel) packaging—reduces this mismatch effect because both components experience similar process conditions.

Is the AT0805BRD0782R5L compatible with lead-free reflow profiles, and does the ROHS3 compliance guarantee assembly reliability?: The AT0805BRD0782R5L is ROHS3-compliant, indicating the absence of restricted substances (lead, cadmium, mercury, etc.) and compatibility with lead-free solder processing. However, ROHS3 compliance does not directly guarantee reflow reliability; instead, it constrains the materials to lead-free compositions. Lead-free reflow profiles operate at higher peak temperatures (typically 250–260°C) compared to lead-based profiles (220–230°C). The AT0805BRD0782R5L's thin-film construction and ceramic substrate are inherently resistant to these higher temperatures, and the resistor's rated operating range (-55°C to 155°C) leaves adequate thermal margin above peak reflow temperatures. In practice, automotive-grade components like the AT0805BRD0782R5L are validated through thermal cycling and moisture-resistance testing under lead-free conditions, so assembly reliability with standard lead-free flux and solder paste is well-established.

How does the AT0805BRD0782R5L compare to the RT0805BRD0782R5L listed as a substitute, and when would each be preferred?: The RT0805BRD0782R5L is mechanically and electrically equivalent to the AT0805BRD0782R5L—both are 82.5-ohm, ±0.1% thin-film resistors in 0805 packaging with AEC-Q200 rating. The primary distinction lies in manufacturer sourcing: the AT designation typically indicates YAGEO manufacturing, while RT may indicate Susumu or another authorized second-source producer. Functionally, performance in circuit design is indistinguishable. Selection between the AT0805BRD0782R5L and RT0805BRD0782R5L is driven by supply chain factors—availability, lead time, pricing, or supply agreement preferences. From a design perspective, both are acceptable for automotive and precision applications, and dual-sourcing both part numbers in bills of materials is common practice to mitigate supply risk for critical components.

What are the practical implications of the AT0805BRD0782R5L's anti-sulfur coating for long-term reliability in industrial environments?: The anti-sulfur coating on the AT0805BRD0782R5L protects the resistive element and solder joints from corrosion caused by hydrogen sulfide and mercaptan compounds found in industrial and coastal environments. Uncoated thin-film resistors exposed to these agents can experience rapid increase in resistance value and eventual open-circuit failure due to sulfidation of the metallic terminations and resistive film. Testing of AEC-Q200–rated components like the AT0805BRD0782R5L includes exposure to controlled hydrogen sulfide environments (per IPC-TM-650 methods), and compliance confirms that resistance drift remains within acceptable limits (typically <5% over 1000 hours of exposure). For outdoor, marine, or chemical processing applications where sulfur-containing atmospheres are present, the AT0805BRD0782R5L's anti-sulfur construction provides measurable extended service life compared to standard thin-film alternatives.

Why might an engineer choose the AT0805BRD0782R5L's 0.125W power rating instead of specifying a larger 0.25W or 0.5W resistor for the same nominal value?: Selecting the AT0805BRD0782R5L at 0.125W (1/8W) instead of a larger power rating offers several practical advantages. The 0805 form factor (2.00mm × 1.25mm) with lower power rating occupies minimal board real estate, reducing PCB layer count and area—critical constraints in space-limited automotive modules and medical devices. The AT0805BRD0782R5L's lower thermal mass also enables faster thermal transient response, beneficial in temperature-compensated circuits or fast signal pathways. However, this choice introduces a thermal design obligation: the circuit must be sized to keep sustained current below approximately 25–30mA to avoid approaching the AT0805BRD0782R5L's derating curve and reaching excessive junction temperatures. If the application requires continuous dissipation approaching the full 0.125W (implying currents near 39mA), thermal modeling and PCB-level heat management become mandatory design tasks.

Does the AT0805BRD0782R5L require any special handling or design considerations for high-vibration automotive applications?: The AT0805BRD0782R5L, qualified to AEC-Q200, has undergone mechanical stress and vibration validation testing, including drop impact and multi-axis random vibration exposure that simulates engine bay and chassis-mounted environments. These tests verify that the solder joint and resistive element remain mechanically stable under operational vibration (typically up to 10–15G random). In practical design, the AT0805BRD0782R5L requires standard PCB layout practices: adequate solder pad size (per IPC-7531), sufficient copper thermal mass at the pads, and avoidance of sharp PCB edges or mechanical stress concentrators near the component. In high-vibration zones (such as engine-mounted fuel injector driver circuits), some design teams employ underfill or conformal coating to further reduce solder fatigue risk, though this is optional for typical automotive modules.

How do the REACH and ECCN classifications of the AT0805BRD0782R5L affect international supply and export compliance?: The AT0805BRD0782R5L is classified as REACH Unaffected, indicating that the component and its constituent materials fall outside the scope of EU REACH chemical inventory and authorization requirements. This simplifies compliance documentation for European customers and eliminates the need for substance declaration tracking beyond standard material certifications. The ECCN (Export Control Classification Number) designation of EAR99 indicates the component is not subject to U.S. export licensing requirements for most end-use destinations, allowing the AT0805BRD0782R5L to be treated as a commodity item in export logistics. However, ECCN classification does not apply to embargoed countries or end-users under export restrictions, so customers must verify end-destination compliance through their export control processes. The HTSUS code (8533.21.0030) supports tariff classification for customs purposes and is used by freight forwarders and customs brokers during international shipment.

Parts with Similar Specifications

The three parts on the right have similar specifications to YAGEO AT0805BRD0782R5L

Product Attribute
Part Number	AT0805BRD0782RL	AT0805BRD07820RL	AT0805BRD0782K5L	AT0805BRD07825RL
Manufacturer	YAGEO	YAGEO	YAGEO	YAGEO
Resistance	-	-	-	-
Height - Seated (Max)	-	-	-	-
Number of Terminations	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Series	-	-	-	-
Features	-	-	-	Simultaneous Sampling
Power (Watts)	-	-	-	-
Size / Dimension	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Temperature Coefficient	-	-	-	-
Ratings	-	-	-	-
Supplier Device Package	-	196-NFBGA (12x12)	16-PDIP	64-VQFN (9x9)
Composition	-	-	-	-
Failure Rate	-	-	-	-
Tolerance	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C

AT0805BRD0782R5L Datasheet PDF

Download AT0805BRD0782R5L pdf datasheets and YAGEO documentation for AT0805BRD0782R5L - YAGEO.

Datasheets: AT Series, Automotive.pdf

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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.
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America	Brazil	7
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