AF1206FR-074M99L Equivalent & Substitute Parts

Part Overview

The AF1206FR-074M99L is a 4.99 MOhms ±1% 0.25W thick film chip resistor in 1206 (3216 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 active in production with 1117 pieces in stock. Substitute parts are identified to provide design flexibility, supply chain alternatives, and equivalent electrical performance across multiple manufacturers.

Substiute Parts

AF1206FR-074M99L

YAGEOIn Stock: 1214AF1206FR-074M99L Datasheet

Current PartRFQ

RC1206FR-074M99L

YAGEOIn Stock: 47167RC1206FR-074M99L Datasheet

MFR RecommendedRFQ

CRCW12064M99FKEA

Vishay DaleIn Stock: 8880CRCW12064M99FKEA Datasheet

MFR RecommendedRFQ

KTR18EZPF4994

Rohm SemiconductorIn Stock: 23349KTR18EZPF4994 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AF1206FR-074M99L are qualified based on the following criteria:

• Identical resistance value: 4.99 MOhms
• Identical tolerance: ±1%
• Identical power rating: 0.25W (1/4W)
• Identical package: 1206 (3216 Metric)
• Identical composition: Thick Film
• Identical temperature coefficient: ±100ppm/°C
• Identical operating temperature range: -55°C to 155°C
• Equivalent compliance: ROHS3 Compliant, MSL 1

All substitute parts meet these core electrical and mechanical parameters, ensuring direct functional equivalence in circuit applications. Differences in physical dimensions (length/height) and specific feature sets (anti-sulfur vs. moisture resistant vs. high voltage) do not affect electrical performance but may influence selection based on application-specific requirements.

Parameter Comparison

Engineering Selection Recommendations

All four parts are active products with ROHS3 compliance and MSL 1 rating, ensuring environmental and regulatory compatibility. Selection among these substitutes should be based on:

• AF1206FR-074M99L: Primary choice for applications requiring anti-sulfur coating in harsh automotive environments with AEC-Q200 qualification.
• RC1206FR-074M99L: Alternative YAGEO option with moisture-resistant characteristics and highest inventory availability (47064 pcs), suitable for general-purpose applications.
• CRCW12064M99FKEA: Vishay Dale alternative with AEC-Q200 rating, appropriate for automotive applications requiring established Vishay supply chain support.
• KTR18EZPF4994: Rohm Semiconductor option with high voltage capability and AEC-Q200 rating, suitable for applications with elevated voltage stress requirements.

All parts are electrically and mechanically interchangeable within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Can these parts be used interchangeably in the same circuit? A: Yes. All substitute parts share identical electrical specifications (4.99 MOhms, ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C) and package format (1206). They are direct functional equivalents.

Q: What is the difference between anti-sulfur and moisture-resistant features? A: Anti-sulfur coating (AF series) protects against sulfur contamination in harsh environments. Moisture-resistant (RC series) provides protection against moisture ingress. Both are protective features; selection depends on the specific environmental exposure of the application.

Q: Are there physical dimension differences between these parts? A: Minor variations exist. AF1206FR-074M99L and RC1206FR-074M99L are 0.122" L × 0.063" W with 0.026" max height. CRCW12064M99FKEA and KTR18EZPF4994 are 0.126" L × 0.063" W with 0.024" and 0.026" max heights respectively. These differences do not affect circuit performance or standard PCB footprint compatibility.

Q: Which part should I select for automotive applications? A: AF1206FR-074M99L, CRCW12064M99FKEA, and KTR18EZPF4994 all carry AEC-Q200 automotive qualification. RC1206FR-074M99L does not list AEC-Q200 rating. For automotive applications, use one of the three AEC-Q200 qualified alternatives.

Q: What does MSL 1 (Unlimited) mean? A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture control during storage or handling, making it suitable for standard manufacturing environments.