AC1206FR-07243RL Equivalent & Substitute Parts

Part Overview

The AC1206FR-07243RL is a 243 Ohms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by YAGEO. This component is rated for automotive applications under AEC-Q200 standard with moisture resistance and operates across -55°C to 155°C. The part is currently active in production with 889 pieces in stock. Substitute parts are necessary to address supply chain flexibility, alternative sourcing options, and design requirements that may benefit from different manufacturer certifications or availability levels.

Key Parameters

Parameter	Value
Resistance	243 Ohms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the AC1206FR-07243RL is determined by strict equivalence across the following parameters:

Resistance value: 243 Ohms
Tolerance: ±1%
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Composition: Thick Film
Temperature coefficient: ±100ppm/°C
Operating temperature range: -55°C ~ 155°C
Moisture Sensitivity Level: 1 (Unlimited)
RoHS compliance: ROHS3 Compliant

All identified substitute parts meet these core electrical and mechanical parameters. Variations in physical dimensions (length, width, height) within the 1206 package specification and differences in automotive certification (AEC-Q200) or product status do not disqualify substitution when the above parameters are matched.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op. Temp Range	AEC-Q200	Product Status	Inventory (Pcs)
AC1206FR-07243RL	YAGEO	243 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	889
RC1206FR-07243RL	YAGEO	243 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	No	Active	249027
RK73H2BTTD2430F	KOA Speer Electronics, Inc.	243 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	17362
CR1206-FX-2430ELF	Bourns Inc.	243 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	No	Active	25010
CRCW1206243RFKEA	Vishay Dale	243 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Active	10675
ERJ-8ENF2430V	Panasonic Electronic Components	243 Ω	±1%	0.25	1206	±100ppm/°C	-55°C ~ 155°C	Yes	Not For New Designs	169438

Engineering Selection Recommendations

All substitute parts listed maintain electrical and mechanical equivalence to the AC1206FR-07243RL. Selection should be based on the following criteria:

For Active Production Designs: RC1206FR-07243RL (YAGEO), RK73H2BTTD2430F (KOA Speer), CR1206-FX-2430ELF (Bourns), and CRCW1206243RFKEA (Vishay Dale) are all suitable alternatives with active product status and ROHS3 compliance.

For Automotive AEC-Q200 Applications: AC1206FR-07243RL, RK73H2BTTD2430F, CRCW1206243RFKEA, and ERJ-8ENF2430V carry AEC-Q200 certification. The ERJ-8ENF2430V is marked "Not For New Designs" and should be used only for legacy system support or maintenance applications.

For Supply Chain Optimization: RC1206FR-07243RL offers the highest inventory availability (249,027 pieces) among active parts, followed by CR1206-FX-2430ELF (25,010 pieces) and RK73H2BTTD2430F (17,362 pieces).

Frequently Asked Questions (FAQ)

Q: Can I substitute AC1206FR-07243RL with RC1206FR-07243RL? A: Yes. Both parts are manufactured by YAGEO and share identical electrical specifications (243 Ω, ±1%, 0.25W, 1206 package, ±100ppm/°C, -55°C to 155°C). The primary difference is that RC1206FR-07243RL does not carry AEC-Q200 automotive certification. For non-automotive applications, RC1206FR-07243RL is a direct substitute with significantly higher availability.

Q: Are all substitute parts physically compatible with the same PCB footprint? A: Yes. All substitute parts use the 1206 (3216 Metric) package. Minor variations in component height (0.024" to 0.030") fall within standard 1206 package tolerances and do not affect PCB assembly or functionality.

Q: Why is ERJ-8ENF2430V marked "Not For New Designs"? A: The ERJ-8ENF2430V is a legacy part from Panasonic. While it meets all electrical and mechanical specifications, it is no longer recommended for new product designs. This part should be reserved for maintenance, repair, or legacy system support only.

Q: What is the difference between AEC-Q200 and non-AEC-Q200 variants? A: AEC-Q200 certification indicates the component meets automotive industry reliability and quality standards. AC1206FR-07243RL, RK73H2BTTD2430F, CRCW1206243RFKEA, and ERJ-8ENF2430V carry this certification. For automotive applications, AEC-Q200 certified parts are required; for general industrial or consumer applications, non-certified variants are acceptable.

Q: Can I mix different manufacturers' parts in the same design? A: Yes. All substitute parts meet identical electrical specifications and package requirements. Mixing manufacturers is acceptable from an electrical standpoint. However, maintain consistent sourcing within production batches when possible to simplify supply chain management and documentation.

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