AF1210FR-07549RL Equivalent & Substitute Parts

Part Overview

The AF1210FR-07549RL is a 549 Ohm ±1% 0.5W thick film chip resistor in 1210 (3225 Metric) package manufactured by YAGEO. This component is rated for automotive applications under AEC-Q200 and features anti-sulfur construction. The part is currently in active production status with 760 pieces available in stock.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits component sourcing from alternative manufacturers while maintaining electrical and mechanical compatibility.

Substiute Parts

AF1210FR-07549RL

YAGEOIn Stock: 822AF1210FR-07549RL Datasheet

Current PartRFQ

ERJ-14NF5490U

Panasonic Electronic ComponentsIn Stock: 5491ERJ-14NF5490U Datasheet

MFR RecommendedRFQ

RMCF1210FT549R

Stackpole Electronics IncIn Stock: 5466RMCF1210FT549R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AF1210FR-07549RL is determined by strict equivalence across the following parameters:

• Resistance value: 549 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Package: 1210 (3225 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Automotive compliance: AEC-Q200 (exact match required)

All substitute parts listed meet these criteria and are therefore electrically and mechanically interchangeable with the primary part.

Parameter Comparison

Engineering Selection Recommendations

Both ERJ-14NF5490U and RMCF1210FT549R meet all electrical and mechanical requirements for direct substitution with AF1210FR-07549RL.

RMCF1210FT549R (Stackpole Electronics Inc) carries Active product status, indicating ongoing manufacturer support and continued availability for new designs. This part is suitable for both new development and production applications.

ERJ-14NF5490U (Panasonic Electronic Components) carries Not For New Designs status. While electrically and mechanically equivalent, this designation indicates the manufacturer does not recommend this part for new design implementations. This part may be considered for legacy system maintenance or when existing inventory constraints require its use.

All three parts maintain identical compliance certifications including AEC-Q200 automotive rating, ROHS3 compliance, and unlimited moisture sensitivity level rating.

Frequently Asked Questions (FAQ)

Q: Can ERJ-14NF5490U be used in new automotive designs? A: ERJ-14NF5490U carries Not For New Designs status from Panasonic. While electrically and mechanically equivalent to AF1210FR-07549RL, new designs should prioritize RMCF1210FT549R or AF1210FR-07549RL, both with Active product status.

Q: Are there dimensional differences between these parts? A: All three parts use the 1210 (3225 Metric) package. Minor dimensional variations exist: AF1210FR-07549RL measures 0.122" L x 0.102" W with 0.024" max height; ERJ-14NF5490U and RMCF1210FT549R measure 0.126" L x 0.098" W with 0.028" max height. These variations remain within standard 1210 package tolerances and do not affect PCB layout compatibility.

Q: Do all substitute parts meet automotive requirements? A: Yes. All three parts carry AEC-Q200 automotive qualification and operate across -55°C to 155°C temperature range with ±100ppm/°C temperature coefficient.

Q: What is the difference between AF1210FR-07549RL and RMCF1210FT549R? A: Both parts are electrically and mechanically identical with Active product status. The primary difference is manufacturer: YAGEO versus Stackpole Electronics Inc. Selection may be based on supply availability, lead time, or existing supplier relationships.

Q: Are these parts suitable for high-reliability applications? A: All three parts meet AEC-Q200 automotive qualification, ROHS3 compliance, and carry MSL 1 (Unlimited) moisture sensitivity rating, making them suitable for automotive and high-reliability applications within their specified operating parameters.