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RK73H2ARTTD64R9F
KOA Speer Electronics, Inc.
ANTI SULFURATION PRECISION CHIP
5440 Pcs New Original In Stock
64.9 Ohms ±1% 0.25W, 1/4W Chip Resistor 0805 (2012 Metric) Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant Thick Film
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5.0 / 5.0
- (319 Ratings)
RK73H2ARTTD64R9F
Product Overview
9340309
DiGi Electronics Part Number
RK73H2ARTTD64R9F-DGManufacturer
KOA Speer Electronics, Inc.
RK73H2ARTTD64R9F
Description
ANTI SULFURATION PRECISION CHIPInventory
5440 Pcs New Original In Stock
64.9 Ohms ±1% 0.25W, 1/4W Chip Resistor 0805 (2012 Metric) Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant Thick Film
Quantity
Minimum 1
Minimum 1
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RK73H2ARTTD64R9F Technical Specifications
Category
Chip Resistor - Surface Mount
Packaging
Tape & Reel (TR)
Series
RK73-RT
Product Status
Active
Resistance
64.9 Ohms
Tolerance
±1%
Power (Watts)
0.25W, 1/4W
Composition
Thick Film
Features
Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant
Temperature Coefficient
±100ppm/°C
Operating Temperature
-55°C ~ 155°C
Package / Case
0805 (2012 Metric)
Supplier Device Package
0805
Ratings
AEC-Q200
Size / Dimension
0.079" L x 0.047" W (2.00mm x 1.20mm)
Height - Seated (Max)
0.024" (0.60mm)
Number of Terminations
2
Failure Rate
-
Base Product Number
RK73H2A
Datasheet & Documents
HTML Datasheet
RK73H2ARTTD64R9F-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8533.21.0030
Additional Information
Other Names
2019-RK73H2ARTTD64R9FTR
Standard Package
5,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
грудня 02, 2025
신속한 문제 해결과 기대 이상인 서비스에 감사드립니다.
грудня 02, 2025
Bei DiGi Electronics bekomme ich regelmäßig pünktlich meine Bestellung, und die Produktqualität ist immer auf einem hohen Niveau.
грудня 02, 2025
The after-sales support provides valuable assistance whenever needed.
грудня 02, 2025
Their customer service team is empathetic and efficient, ensuring my issues are resolved swiftly.
грудня 02, 2025
The wide assortment of products ensures I always find what I need.
грудня 02, 2025
Shopping here is enjoyable because of their honest and transparent pricing.
грудня 02, 2025
I was pleasantly surprised by how quickly my order was shipped; Di Digi Electronics truly prioritizes fast delivery.
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Frequently Asked Questions (FAQ)
Can the RK73H2ARTTD64R9F resistor be safely used in high-sulfur environments like industrial exhaust systems or battery compartments without degrading over time?
Yes, the RK73H2ARTTD64R9F is specifically designed with anti-sulfuration construction, making it suitable for harsh environments where sulfur-containing gases are present—such as near batteries, motors, or industrial exhaust. Unlike standard thick-film resistors that can fail due to silver sulfide formation on terminations, this component uses a sulfur-resistant electrode design that maintains stable resistance over time. For maximum reliability in such applications, ensure proper PCB sealing or conformal coating to complement the resistor’s inherent protection.
Is the RK73H2ARTTD64R9F a drop-in replacement for the Panasonic ERJ-6ENF64R9V in an automotive ECU design, and what risks should I evaluate before switching?
The RK73H2ARTTD64R9F is electrically compatible with the Panasonic ERJ-6ENF64R9V (64.9Ω ±1%, 0805, 1/4W) and shares similar AEC-Q200 qualification, making it a viable replacement. However, verify mechanical compatibility—especially solder joint reliability under thermal cycling—since electrode materials differ. The KOA part offers superior anti-sulfuration performance, which may improve long-term reliability in under-hood applications. Always conduct thermal shock testing (-55°C to 155°C) and high-humidity bias testing per AEC-Q200 to confirm performance parity in your specific layout and reflow profile.
What are the key reliability risks when using the RK73H2ARTTD64R9F in a moisture-prone environment like a vehicle door control module, and how can I mitigate them?
Although the RK73H2ARTTD64R9F is rated moisture-resistant and has an MSL 1 (unlimited floor life), prolonged exposure to condensation or high humidity—especially with temperature cycling—can still induce mechanical stress or ionic contamination under the component. To mitigate risk, avoid placing the resistor near board edges or high-stress zones, use a conformal coating (e.g., acrylic or silicone-based), and ensure adequate spacing from potential water paths. Additionally, validate long-term stability with 85°C/85% RH biased humidity testing for at least 1,000 hours to confirm no drift beyond ±1% tolerance.
Can I use the RK73H2ARTTD64R9F in a high-vibration automotive application like a transmission control unit, and what layout considerations are critical?
Yes, the RK73H2ARTTD64R9F is qualified to AEC-Q200, which includes mechanical shock and vibration testing, making it suitable for transmission or engine-mounted electronics. However, 0805 resistors are more susceptible to solder joint fatigue than larger packages under sustained vibration. To reduce risk, orient the resistor perpendicular to the primary axis of vibration, use a robust solder paste (e.g., SAC305 with adequate flux), and avoid placing it near board stiffeners or connectors that concentrate stress. Consider adding local strain relief with epoxy encapsulation if field failure data shows cracking in similar designs.
How does the temperature coefficient of the RK73H2ARTTD64R9F impact precision current sensing in a 12V automotive power distribution module, and is ±100ppm/°C sufficient for stable operation?
With a TCR of ±100ppm/°C, the RK73H2ARTTD64R9F introduces up to ±1.5Ω drift over its full operating range (-55°C to 155°C), which may be acceptable for general-purpose current sensing but could compromise accuracy in precision applications like battery management or fuse monitoring. For tighter control, pair it with a temperature-compensated circuit or calibration routine. If your system requires <±0.5% total resistance stability over temperature, consider upgrading to a metal foil resistor (e.g., Vishay Z201), though at higher cost and larger footprint. Always model worst-case TCR error in your signal chain to ensure it stays within ADC or comparator thresholds.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
RK73H2ARTTD64R9F CAD Models
KOA Speer Electronics, Inc. RK73H2ARTTD64R9F PCB symbols & footprints
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