AT0805FRE0718KL Equivalent & Substitute Parts

Part Overview

The AT0805FRE0718KL is an 18 kOhms ±1% thin film chip resistor in 0805 (2012 Metric) package manufactured by YAGEO. This component features anti-sulfur coating, automotive AEC-Q200 qualification, and moisture resistance, making it suitable for automotive and harsh environment applications. The part is currently active in production with 1,048 units in stock.

Substitute parts are identified when electrical specifications (resistance value, tolerance, power rating, temperature coefficient) and mechanical parameters (package, dimensions, terminations) remain within acceptable ranges for direct board-level replacement.

Substiute Parts

AT0805FRE0718KL

YAGEOIn Stock: 1135AT0805FRE0718KL Datasheet

Current PartRFQ

RT0805BRE0718KL

YAGEOIn Stock: 10471RT0805BRE0718KL Datasheet

MFR RecommendedRFQ

RT0805DRE0718KL

YAGEOIn Stock: 9618RT0805DRE0718KL Datasheet

MFR RecommendedRFQ

RT0805FRE0718KL

YAGEOIn Stock: 16106RT0805FRE0718KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT0805FRE0718KL is determined by the following criteria:

• Resistance Value: Must be 18 kOhms
• Package: Must be 0805 (2012 Metric)
• Power Rating: Must be 0.125W (1/8W) minimum
• Composition: Thin film technology
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature: -55°C to 155°C minimum
• Terminations: 2-terminal configuration
• Compliance: RoHS3 and REACH requirements

The three substitute parts listed below meet all these criteria. Tolerance variations (±0.1%, ±0.5%, ±1%) are acceptable substitutes when circuit design permits tighter or equivalent tolerance specifications. All substitutes are manufactured by YAGEO and maintain identical mechanical and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are active production components with ROHS3 compliance and REACH unaffected status, meeting the same regulatory requirements as the main part.

RT0805BRE0718KL offers ±0.1% tolerance, providing superior precision for applications requiring tighter resistance tolerances than the original ±1% specification.

RT0805DRE0718KL provides ±0.5% tolerance, representing a middle-ground option between standard and precision grades.

RT0805FRE0718KL matches the original ±1% tolerance specification exactly, offering direct functional equivalence with the highest available inventory (16,006 units).

Selection between these substitutes depends on circuit tolerance requirements. The main part AT0805FRE0718KL includes anti-sulfur coating and automotive AEC-Q200 qualification; substitute parts from the RT series do not list these features in their specifications.

Frequently Asked Questions (FAQ)

Q: Can RT0805BRE0718KL replace AT0805FRE0718KL in automotive applications?

A: Both parts share identical electrical specifications (18 kOhms, 0.125W, ±50ppm/°C, -55°C to 155°C), mechanical dimensions (0805 package), and compliance ratings (ROHS3, MSL 1). The RT0805BRE0718KL offers tighter tolerance (±0.1% vs ±1%). However, the main part specifies AEC-Q200 automotive qualification and anti-sulfur coating, which are not listed for the RT series substitute. Compatibility depends on whether these specific features are required by your application.

Q: What is the tolerance difference between these substitutes?

A: AT0805FRE0718KL and RT0805FRE0718KL both specify ±1% tolerance. RT0805DRE0718KL specifies ±0.5% tolerance. RT0805BRE0718KL specifies ±0.1% tolerance. Tighter tolerance parts can replace wider tolerance specifications without circuit impact, provided the design does not depend on the original tolerance band.

Q: Are all substitutes available in the same packaging format?

A: All four parts are supplied in Tape & Reel (TR) packaging and use the identical 0805 (2012 Metric) package. No PCB layout or assembly process modifications are required for substitution.

Q: What is the inventory advantage of using RT0805FRE0718KL?

A: RT0805FRE0718KL maintains 16,006 units in stock compared to 1,048 units for the main part AT0805FRE0718KL, providing significantly higher availability for high-volume production requirements.

Q: Can I use a substitute with tighter tolerance in place of the original part?

A: Yes. A component with tighter tolerance (lower percentage) can replace one with wider tolerance without affecting circuit function, provided the resistance value and all other electrical parameters remain identical. RT0805BRE0718KL (±0.1%) and RT0805DRE0718KL (±0.5%) are both tighter than the original ±1% specification.