AF1206JR-0727RL Equivalent & Substitute Parts

Part Overview

The AF1206JR-0727RL is a 27 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 970 pieces in stock.

Substitute parts are necessary when the original part becomes unavailable, when design requirements demand tighter tolerance specifications, or when alternative manufacturers' components are preferred for supply chain diversification and cost optimization.

Key Parameters

Parameter	Value
Resistance	27 Ohms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Features	Anti-Sulfur, Automotive AEC-Q200
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Resistance Value: Must be 27 Ohms
Package Type: Must be 1206 (3216 Metric)
Composition: Must be Thick Film
Temperature Coefficient: Must be ±100ppm/°C
Operating Temperature Range: Must support -55°C to 155°C
Tolerance: ±5% or tighter (±1%) is acceptable
Power Rating: 0.25W or higher is acceptable
RoHS Compliance: ROHS3 Compliant preferred
Moisture Sensitivity: MSL 1 required

Substitute parts are grouped into two categories:

Category 1 - Direct Substitutes (±5% Tolerance): Parts with identical tolerance specification to the original AF1206JR-0727RL.

Category 2 - Enhanced Substitutes (±1% Tolerance): Parts with tighter tolerance, offering improved accuracy while maintaining all other critical parameters.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power	Package	Temp Coeff	Temp Range	Features	RoHS	Product Status
AF1206JR-0727RL	YAGEO	27Ω	±5%	0.25W	1206	±100ppm/°C	-55~155°C	Anti-Sulfur, AEC-Q200	ROHS3	Active
AC1206FR-0727RL	YAGEO	27Ω	±1%	0.25W	1206	±100ppm/°C	-55~155°C	AEC-Q200, Moisture Resistant	ROHS3	Active
RC1206FR-0727RL	YAGEO	27Ω	±1%	0.25W	1206	±100ppm/°C	-55~155°C	Moisture Resistant	ROHS3	Active
RC1206JR-0727RL	YAGEO	27Ω	±5%	0.25W	1206	±100ppm/°C	-55~155°C	Moisture Resistant	ROHS3	Active
CR1206-FX-27R0ELF	Bourns Inc.	27Ω	±1%	0.25W	1206	±100ppm/°C	-55~155°C	Moisture Resistant	ROHS3	Active
CRCW120627R0FKEA	Vishay Dale	27Ω	±1%	0.25W	1206	±100ppm/°C	-55~155°C	AEC-Q200	ROHS3	Active
CRCW120627R0FKEAHP	Vishay Dale	27Ω	±1%	0.75W	1206	±100ppm/°C	-55~155°C	AEC-Q200, Pulse Withstanding	ROHS3	Active
CRCW120627R0FKTA	Vishay Dale	27Ω	±1%	0.25W	1206	±100ppm/°C	-55~155°C	AEC-Q200	Non-compliant	Active
ERJ-8ENF27R0V	Panasonic	27Ω	±1%	0.25W	1206	±100ppm/°C	-55~155°C	AEC-Q200	ROHS3	Not For New Designs
ESR18EZPF27R0	Rohm Semiconductor	27Ω	±1%	0.5W	1206	±100ppm/°C	-55~155°C	AEC-Q200, Pulse Withstanding	ROHS3	Active

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs)

For applications requiring the original AF1206JR-0727RL specifications with ±5% tolerance, RC1206JR-0727RL from YAGEO is the direct equivalent. Both parts share identical electrical and mechanical parameters with ROHS3 compliance and active production status.

For applications where tighter tolerance improves circuit performance, AC1206FR-0727RL and RC1206FR-0727RL from YAGEO offer ±1% tolerance while maintaining all other critical parameters. Both are ROHS3 compliant and in active production.

Cross-Manufacturer Alternatives

CRCW120627R0FKEA from Vishay Dale provides ±1% tolerance with AEC-Q200 automotive qualification and ROHS3 compliance. This part is suitable for automotive applications requiring enhanced accuracy.

CR1206-FX-27R0ELF from Bourns Inc. offers ±1% tolerance with ROHS3 compliance and active production status, providing supply chain diversification.

ESR18EZPF27R0 from Rohm Semiconductor features 0.5W power rating with ±1% tolerance and pulse withstanding capability, suitable for applications requiring higher power dissipation margin.

Parts Not Recommended for New Designs

ERJ-8ENF27R0V from Panasonic is marked "Not For New Designs" and should be avoided in new circuit development despite meeting electrical specifications.

CRCW120627R0FKTA from Vishay Dale is RoHS non-compliant and should not be used in applications requiring RoHS compliance.

Frequently Asked Questions (FAQ)

Q: Can I use a ±1% tolerance part as a substitute for the ±5% AF1206JR-0727RL?

A: Yes. Tighter tolerance is a compatible substitution. A ±1% part will perform within the ±5% specification window while providing improved accuracy. This is a direct upgrade in terms of tolerance performance.

Q: Are all substitute parts in the same 1206 package footprint?

A: All listed substitutes use the 1206 (3216 Metric) package. However, physical dimensions vary slightly between manufacturers. Verify specific length, width, and height specifications if PCB layout tolerances are critical. Most variations are within 0.004" (0.1mm), which is acceptable for standard PCB designs.

Q: Which substitute part is best for automotive applications?

A: For automotive use, select parts with AEC-Q200 qualification: AC1206FR-0727RL, CRCW120627R0FKEA, CRCW120627R0FKEAHP, or ESR18EZPF27R0. All are ROHS3 compliant and rated for -55°C to 155°C operation.

Q: What is the difference between CRCW120627R0FKEA and CRCW120627R0FKEAHP?

A: Both are Vishay Dale parts with 27 Ohm resistance and ±1% tolerance. The primary difference is power rating: FKEA is 0.25W while FKEAHP is 0.75W with pulse withstanding capability. Select FKEAHP if the circuit requires higher power dissipation margin or pulse handling.

Q: Can I substitute ERJ-8ENF27R0V in existing designs?

A: ERJ-8ENF27R0V meets all electrical and mechanical specifications but is marked "Not For New Designs" by Panasonic. It may be used in existing production if supply is available, but alternative sources should be qualified for future designs.

Q: Is CRCW120627R0FKTA a valid substitute?

A: CRCW120627R0FKTA meets electrical specifications but is RoHS non-compliant. Use only in applications where RoHS compliance is not required. For RoHS-compliant designs, select CRCW120627R0FKEA instead.

Q: What is the moisture sensitivity level for all these parts?

A: All substitute parts have MSL 1 (Unlimited), matching the original AF1206JR-0727RL. This means no moisture bake-out is required before soldering, and shelf life is unlimited under normal storage conditions.

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