AF1210FR-0791RL Equivalent & Substitute Parts

Part Overview

The AF1210FR-0791RL is a 91 Ohms ±1% 0.5W thick film chip resistor in 1210 (3225 Metric) package manufactured by YAGEO. This component features anti-sulfur coating and automotive AEC-Q200 qualification, making it suitable for automotive and harsh environment applications. The part is currently in active production status with 991 pieces available in inventory.

Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

AF1210FR-0791RL

YAGEOIn Stock: 1052AF1210FR-0791RL Datasheet

Current PartRFQ

RMCF1210FT91R0

Stackpole Electronics IncIn Stock: 1051RMCF1210FT91R0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AF1210FR-0791RL is determined by the following critical parameters:

• Resistance value: 91 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.5W minimum
• Package type: 1210 (3225 Metric) form factor
• Temperature coefficient: ±100ppm/°C or better
• Operating temperature range: -55°C ~ 155°C minimum
• Automotive qualification: AEC-Q200 certification
• Composition: Thick film construction
• Moisture sensitivity: MSL 1 or better
• RoHS compliance: ROHS3 Compliant

The RMCF1210FT91R0 manufactured by Stackpole Electronics Inc meets all substitution criteria and is classified as a manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the AF1210FR-0791RL and RMCF1210FT91R0 are active production components with identical electrical specifications and AEC-Q200 automotive qualification. Selection between these parts should be based on:

• Availability and lead time requirements
• PCB layout constraints, as dimensional variations exist within the 1210 package tolerance range
• Supplier inventory status and supply chain considerations
• Established qualification history within your manufacturing process

Both components satisfy ROHS3 compliance and MSL 1 moisture sensitivity requirements for standard handling and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can RMCF1210FT91R0 be used as a direct replacement for AF1210FR-0791RL?

A: Yes. Both components share identical electrical specifications (91 Ohms ±1%, 0.5W), temperature characteristics (±100ppm/°C, -55°C ~ 155°C), AEC-Q200 automotive qualification, and thick film construction. Physical dimensions fall within acceptable 1210 package tolerances.

Q: What are the dimensional differences between these parts?

A: The AF1210FR-0791RL measures 3.10mm × 2.60mm × 0.60mm (max height), while the RMCF1210FT91R0 measures 3.20mm × 2.50mm × 0.70mm (max height). Both conform to 1210 (3225 Metric) package specifications. Verify PCB pad layout and clearance requirements for your specific application.

Q: Are both parts suitable for automotive applications?

A: Yes. Both components carry AEC-Q200 certification and operate across the -55°C ~ 155°C temperature range required for automotive environments.

Q: What is the significance of the anti-sulfur feature on the AF1210FR-0791RL?

A: The anti-sulfur coating on the YAGEO part provides enhanced protection against sulfur-containing atmospheric contaminants. The Stackpole equivalent does not specify this feature but maintains equivalent electrical performance and AEC-Q200 qualification.

Q: Are moisture sensitivity levels identical?

A: Yes. Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for standard handling, storage, and reflow processes.