AF1206JR-074R3L Equivalent & Substitute Parts

Part Overview

The AF1206JR-074R3L is a 4.3 Ohm ±5% 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 907 pieces in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required, or when alternative tolerance grades or feature sets better match application requirements.

Substiute Parts

AF1206JR-074R3L

YAGEOIn Stock: 933AF1206JR-074R3L Datasheet

Current PartRFQ

AC1206FR-074R3L

YAGEOIn Stock: 1015AC1206FR-074R3L Datasheet

MFR RecommendedRFQ

RC1206FR-074R3L

YAGEOIn Stock: 160901RC1206FR-074R3L Datasheet

MFR RecommendedRFQ

RC1206JR-074R3L

YAGEOIn Stock: 19537RC1206JR-074R3L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AF1206JR-074R3L is determined by the following criteria:

Mandatory Matching Parameters:

• Resistance value: 4.3 Ohms
• Package type: 1206 (3216 Metric)
• Power rating: 0.25W (1/4W)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C to 155°C
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1

Allowable Variation:

• Tolerance: ±5% (main part) to ±1% (substitute parts) — tighter tolerance is acceptable
• Features: Anti-sulfur and/or moisture resistant coatings are interchangeable
• Automotive rating: AEC-Q200 qualification maintained across all substitutes

All identified substitute parts meet or exceed the electrical and mechanical specifications of the main part while maintaining full compatibility with the 1206 package footprint and thermal characteristics.

Parameter Comparison

Engineering Selection Recommendations

AC1206FR-074R3L — Select this substitute when tighter tolerance (±1%) is required and automotive AEC-Q200 qualification is mandatory. This part maintains full automotive compliance while offering improved tolerance performance.

RC1206FR-074R3L — Select this substitute when maximum inventory availability is critical. This part provides ±1% tolerance and moisture-resistant thick film composition. Note that AEC-Q200 automotive rating is not specified for this part number.

RC1206JR-074R3L — Select this substitute when tolerance matching the original specification (±5%) is acceptable and moisture-resistant coating is preferred. This part maintains the same tolerance grade as the main part. Note that AEC-Q200 automotive rating is not specified for this part number.

All substitute parts are ROHS3 compliant, MSL 1 rated, and maintain identical package footprint and thermal operating range.

Frequently Asked Questions (FAQ)

Q: Can AC1206FR-074R3L replace AF1206JR-074R3L in automotive applications? A: Yes. Both parts carry AEC-Q200 automotive qualification and maintain identical electrical and thermal specifications. AC1206FR-074R3L offers tighter tolerance (±1% vs ±5%).

Q: What is the difference between RC1206FR-074R3L and RC1206JR-074R3L? A: Both are YAGEO RC series resistors in 1206 package with 4.3 Ohm resistance. The primary difference is tolerance: RC1206FR-074R3L is ±1% while RC1206JR-074R3L is ±5%. Neither carries AEC-Q200 automotive rating.

Q: Are all substitute parts compatible with the same PCB footprint? A: Yes. All parts use the 1206 (3216 Metric) package with identical dimensions: 0.122" L × 0.063" W (3.10mm × 1.60mm) and maximum seated height of 0.026" (0.65mm).

Q: Can RC1206 series parts be used in place of AF1206 in automotive designs? A: Electrical and mechanical compatibility is maintained. However, RC1206 parts lack AEC-Q200 automotive qualification. Use only if automotive certification is not a design requirement.

Q: What does MSL 1 (Unlimited) mean for these parts? A: MSL 1 rating indicates unlimited shelf life without moisture baking requirements. These parts can be stored and handled without special moisture control procedures.