AC0805FR-07124RL Equivalent & Substitute Parts

Part Overview

The AC0805FR-07124RL is a 124 Ohms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) package manufactured by YAGEO. This automotive-grade component meets AEC-Q200 qualification and features moisture-resistant construction. The part is active in production with 1167 pieces currently in stock. Substitute parts are identified when equivalent electrical specifications, package dimensions, and compliance ratings are maintained across alternative manufacturers or product series.

Key Parameters

Parameter	Value
Resistance	124 Ohms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package	0805 (2012 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Automotive Rating	AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters: resistance value (124 Ohms), tolerance (±1%), package type (0805), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, REACH Unaffected, EAR99).

The substitute parts are grouped into two categories based on power rating:

Category 1: Direct Equivalents (0.125W / 1/8W) Parts maintaining identical power rating to the main component: RC0805FR-07124RL (YAGEO), ERJ-6ENF1240V (Panasonic).

Category 2: Higher Power Rating (0.5W / 1/2W) Parts with increased power dissipation capability while maintaining all other electrical and mechanical specifications: CRCW0805124RFKEAHP (Vishay Dale), RCS0805124RFKEA (Vishay Dale).

Category 3: Standard Automotive Grade (0.125W / 1/8W) CRCW0805124RFKEA (Vishay Dale) maintains the original power rating with automotive AEC-Q200 qualification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	AEC-Q200	Height Max (mm)	Inventory (Pcs)
AC0805FR-07124RL	YAGEO	124 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Yes	0.60	1,167
RC0805FR-07124RL	YAGEO	124 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	No	0.60	130,293
CRCW0805124RFKEA	Vishay Dale	124 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Yes	0.50	20,323
CRCW0805124RFKEAHP	Vishay Dale	124 Ω	±1%	0.5	0805	±100ppm/°C	-55 to 155°C	Yes	0.50	12,628
ERJ-6ENF1240V	Panasonic Electronic Components	124 Ω	±1%	0.125	0805	±100ppm/°C	-55 to 155°C	Yes	0.70	58,967
RCS0805124RFKEA	Vishay Dale	124 Ω	±1%	0.5	0805	±100ppm/°C	-55 to 155°C	Yes	0.50	1,115

Engineering Selection Recommendations

For Direct Replacement (Automotive Applications): CRCW0805124RFKEA and ERJ-6ENF1240V are qualified direct substitutes, both maintaining 0.125W power rating and AEC-Q200 automotive certification. CRCW0805124RFKEA offers the lowest profile (0.50mm height) and highest inventory availability among Vishay Dale products. ERJ-6ENF1240V provides the largest inventory pool (58,967 pieces) among all substitutes.

For Non-Automotive Applications: RC0805FR-07124RL (YAGEO) is electrically equivalent but lacks AEC-Q200 qualification. It offers the highest inventory availability (130,293 pieces) and identical package dimensions to the main part.

For Increased Power Dissipation: CRCW0805124RFKEAHP and RCS0805124RFKEA both provide 0.5W power rating while maintaining all other specifications and AEC-Q200 qualification. These are suitable when circuit design requires higher power handling in the same package footprint.

Compliance Verification: All substitute parts maintain ROHS3 compliance, REACH Unaffected status, and EAR99 classification matching the main component.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-07124RL replace AC0805FR-07124RL in automotive applications? A: RC0805FR-07124RL is electrically equivalent but does not carry AEC-Q200 automotive qualification. Use only in non-automotive circuits or where automotive certification is not required.

Q: What is the difference between 0.125W and 0.5W rated substitutes? A: The 0.5W rated parts (CRCW0805124RFKEAHP, RCS0805124RFKEA) can dissipate four times more power than the original 0.125W component. They maintain identical resistance, tolerance, package dimensions, and temperature characteristics. Use higher-rated parts only when circuit power dissipation exceeds 0.125W.

Q: Are all substitutes available in the same package? A: All substitutes use the 0805 (2012 Metric) package with identical length (2.00mm) and width (1.25mm). Height varies slightly: 0.50mm (Vishay Dale), 0.60mm (YAGEO AC/RC series), and 0.70mm (Panasonic ERJ-6EN). These height differences are within standard PCB assembly tolerances.

Q: Which substitute has the best availability? A: RC0805FR-07124RL (YAGEO) has the highest inventory at 130,293 pieces. For automotive-qualified alternatives, ERJ-6ENF1240V (Panasonic) offers 58,967 pieces in stock.

Q: Do all substitutes meet the same compliance standards? A: All listed substitutes are ROHS3 compliant, REACH Unaffected, and classified as EAR99. Automotive-qualified substitutes (CRCW0805124RFKEA, CRCW0805124RFKEAHP, ERJ-6ENF1240V, RCS0805124RFKEA) carry AEC-Q200 certification. The non-automotive option (RC0805FR-07124RL) does not include AEC-Q200 rating.

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