AF2010JK-0791RL Equivalent & Substitute Parts

Part Overview

The AF2010JK-0791RL is a 91 Ohms ±5% 0.75W chip resistor in 2010 (5025 Metric) package manufactured by YAGEO. This thick film resistor features anti-sulfur coating and automotive AEC-Q200 qualification, designed for applications requiring robust performance in harsh environments. The part is currently active in production with 713 units in stock.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and operating parameters.

Substiute Parts

AF2010JK-0791RL

YAGEOIn Stock: 728AF2010JK-0791RL Datasheet

Current PartRFQ

AC2010FK-0791RL

YAGEOIn Stock: 9771AC2010FK-0791RL Datasheet

MFR RecommendedRFQ

RC2010FK-0791RL

YAGEOIn Stock: 6271RC2010FK-0791RL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AF2010JK-0791RL is determined by the following criteria:

• Identical resistance value: 91 Ohms
• Equal or superior tolerance: ±5% or better (±1% qualifies)
• Equal or greater power rating: 0.75W minimum
• Identical package: 2010 (5025 Metric)
• Matching operating temperature range: -55°C to 155°C
• Identical temperature coefficient: ±100ppm/°C
• Equivalent or superior automotive qualification: AEC-Q200
• Compliance with RoHS3 and MSL 1 requirements

The two substitute parts identified—AC2010FK-0791RL and RC2010FK-0791RL—meet all these criteria. Both are YAGEO thick film resistors with ±1% tolerance (superior to the ±5% specification), identical power rating, package, and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

AC2010FK-0791RL is the primary substitute for applications requiring automotive AEC-Q200 qualification. This part maintains full compliance with the original specification while offering improved tolerance (±1% versus ±5%), providing tighter resistance accuracy for precision circuits. Both the main part and this substitute carry identical thermal and environmental ratings.

RC2010FK-0791RL is a secondary substitute suitable for non-automotive applications or where AEC-Q200 certification is not required. This part meets all electrical and mechanical specifications but lacks the automotive qualification present in the original part. Selection of this substitute should be limited to applications where automotive-grade reliability is not a design requirement.

Frequently Asked Questions (FAQ)

Q: Can AC2010FK-0791RL be used as a direct replacement for AF2010JK-0791RL?

A: Yes. Both parts share identical resistance, power rating, package, operating temperature range, and temperature coefficient. AC2010FK-0791RL provides superior tolerance (±1% versus ±5%) and maintains AEC-Q200 automotive qualification. No circuit modifications are required.

Q: What is the difference between AC2010FK-0791RL and RC2010FK-0791RL?

A: The primary difference is automotive qualification. AC2010FK-0791RL carries AEC-Q200 certification; RC2010FK-0791RL does not. Both share identical electrical specifications and package dimensions. Selection depends on whether automotive-grade reliability is required for the application.

Q: Are all three parts mechanically interchangeable?

A: Yes. All three parts use the 2010 (5025 Metric) package with identical dimensions: 0.197" L × 0.098" W (5.00mm × 2.50mm) and maximum seated height of 0.026" (0.65mm). PCB footprints and assembly processes are identical.

Q: Does tolerance difference affect circuit performance?

A: The ±1% tolerance of the substitute parts provides tighter resistance accuracy compared to the ±5% tolerance of the main part. In applications sensitive to resistance variation, the substitute parts offer improved performance. In applications where ±5% tolerance is acceptable, both substitutes remain fully compatible.

Q: Are moisture sensitivity levels equivalent across all three parts?

A: Yes. All three parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage, handling, or assembly processes.