AA1206JR-073R3L Equivalent & Substitute Parts

Part Overview

The AA1206JR-073R3L is a 3.3 Ohm ±5% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by YAGEO. This component features anti-sulfur coating, automotive AEC-Q200 qualification, and moisture resistance, making it suitable for automotive and industrial applications requiring reliable performance across -55°C to 155°C operating temperature range. The part is currently active with 1,079 units in stock.

Equivalent and substitute parts are identified when they maintain identical electrical specifications (resistance value, tolerance, power rating) and mechanical compatibility (package size, termination count) while potentially offering different series designations, packaging formats, or enhanced features from alternative manufacturers.

Key Parameters

Parameter	Value
Resistance	3.3 Ohms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Package / Case	1206 (3216 Metric)
Composition	Thick Film
Temperature Coefficient	±200ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the AA1206JR-073R3L are grouped based on strict electrical and mechanical compatibility criteria:

Primary Substitution Criteria (Must Match):

Resistance value: 3.3 Ohms
Tolerance: ±5%
Power rating: 0.25W (1/4W)
Package: 1206 (3216 Metric)
Termination count: 2
Temperature coefficient: ±200ppm/°C
Operating temperature range: -55°C ~ 155°C
Composition: Thick Film
RoHS3 compliance
MSL rating: 1 (Unlimited)

Grouping Categories:

Group 1: YAGEO Series Variants – Same manufacturer, different series designations with identical electrical specifications and AEC-Q200 automotive qualification.

Group 2: Alternative Manufacturers (Vishay Dale, Rohm, Stackpole) – Different manufacturers maintaining identical core electrical parameters and automotive AEC-Q200 certification with minor dimensional variations within acceptable tolerances.

Group 3: Enhanced Power Rating Variants – Parts with identical resistance, tolerance, and package but higher power ratings (0.5W, 0.75W, 0.333W) for applications requiring additional thermal margin.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Resistance	Tolerance	Power (W)	Package	AEC-Q200	Packaging Format	Inventory (Pcs)
AA1206JR-073R3L	YAGEO	AA	3.3 Ω	±5%	0.25	1206	Yes	Tape & Reel	1,079
AC1206FR-073R3L	YAGEO	AC	3.3 Ω	±1%	0.25	1206	Yes	Tape & Reel	8,114
AC1206JR-073R3L	YAGEO	AC	3.3 Ω	±5%	0.25	1206	Yes	Tape & Reel	2,557
RC1206FR-073R3L	YAGEO	RC_L	3.3 Ω	±1%	0.25	1206	No	Cut Tape & Digi-Reel	353,911
RC1206JR-073R3L	YAGEO	RC_L	3.3 Ω	±5%	0.25	1206	No	Tape & Reel	48,146
SR1206JR-073R3L	YAGEO	SR	3.3 Ω	±5%	0.25	1206	Yes	Tape & Reel	10,614
CRCW12063R30JNEA	Vishay Dale	CRCW	3.3 Ω	±5%	0.25	1206	Yes	Tape & Reel	15,516
CRCW12063R30JNEAHP	Vishay Dale	CRCW-HP	3.3 Ω	±5%	0.75	1206	Yes	Tape & Reel	35,675
ESR18EZPJ3R3	Rohm Semiconductor	ESR	3.3 Ω	±5%	0.5	1206	Yes	Tape & Reel	26,805
RMCF1206JT3R30	Stackpole Electronics Inc	RMCF	3.3 Ω	±5%	0.25	1206	Yes	Tape & Reel	590,760
RPC1206JT3R30	Stackpole Electronics Inc	RPC	3.3 Ω	±5%	0.333	1206	Yes	Tape & Reel	56,161

Engineering Selection Recommendations

Direct Electrical Equivalents (Identical Specifications):

Parts maintaining 3.3 Ohm ±5% 0.25W specifications with AEC-Q200 automotive qualification are direct substitutes: AC1206JR-073R3L, SR1206JR-073R3L, CRCW12063R30JNEA, and RMCF1206JT3R30. These parts are suitable for one-to-one replacement in automotive and industrial applications.

Tighter Tolerance Alternatives:

AC1206FR-073R3L and RC1206FR-073R3L offer ±1% tolerance while maintaining identical power rating and package. These are suitable when circuit design requires improved tolerance performance without changing electrical load characteristics.

Higher Power Rating Options:

CRCW12063R30JNEAHP (0.75W), ESR18EZPJ3R3 (0.5W), and RPC1206JT3R30 (0.333W) maintain 3.3 Ohm ±5% specifications in 1206 package but with increased power dissipation capability. These are applicable when thermal margin or pulse withstanding requirements exceed 0.25W baseline.

Non-Automotive Variants:

RC1206FR-073R3L and RC1206JR-073R3L lack AEC-Q200 certification. These are suitable only for non-automotive applications where automotive qualification is not required.

Packaging Considerations:

RC1206FR-073R3L is supplied in Cut Tape & Digi-Reel format rather than standard Tape & Reel, affecting handling and assembly processes. All other substitutes use standard Tape & Reel packaging compatible with automated pick-and-place equipment.

Frequently Asked Questions (FAQ)

Q: Can AC1206FR-073R3L replace AA1206JR-073R3L in automotive applications?

A: AC1206FR-073R3L is electrically compatible with identical 3.3 Ohm resistance, 0.25W power rating, and 1206 package. It carries AEC-Q200 automotive qualification. The primary difference is tighter ±1% tolerance versus ±5%. This substitution is valid for automotive use.

Q: What is the difference between YAGEO AA, AC, RC, and SR series?

A: These represent different YAGEO product lines with identical electrical specifications for this part number. AA series includes anti-sulfur coating. AC series offers automotive AEC-Q200 qualification. RC_L series provides moisture resistance without automotive certification. SR series includes pulse withstanding capability with AEC-Q200 qualification. All maintain 3.3 Ohm ±5% 0.25W specifications in 1206 package.

Q: Can I use CRCW12063R30JNEAHP (0.75W) instead of AA1206JR-073R3L (0.25W)?

A: CRCW12063R30JNEAHP is mechanically and electrically compatible in terms of resistance value, tolerance, and package size. The higher 0.75W power rating provides additional thermal capability but does not affect circuit operation. This substitution is valid when increased power dissipation margin is beneficial or required.

Q: Are RC1206JR-073R3L and AA1206JR-073R3L interchangeable?

A: Both parts share identical 3.3 Ohm ±5% 0.25W specifications and 1206 package. RC1206JR-073R3L lacks AEC-Q200 automotive certification present in AA1206JR-073R3L. For non-automotive applications, they are interchangeable. For automotive use, AA1206JR-073R3L or AEC-Q200 certified alternatives are required.

Q: What packaging format differences exist among substitutes?

A: Most substitutes use standard Tape & Reel (TR) packaging for automated assembly. RC1206FR-073R3L uses Cut Tape (CT) & Digi-Reel format, requiring different handling procedures. Verify assembly equipment compatibility before selecting Cut Tape variants.

Q: Does tolerance selection affect circuit performance?

A: Tolerance determines resistor value accuracy. ±5% tolerance (AA1206JR-073R3L) allows 3.135 to 3.465 Ohm range. ±1% tolerance (AC1206FR-073R3L) allows 3.267 to 3.333 Ohm range. Select based on circuit design requirements for voltage dividers, biasing networks, or precision current limiting applications.

Q: Can I substitute a non-AEC-Q200 part in automotive applications?

A: AEC-Q200 certification indicates automotive-grade reliability testing and qualification. For automotive applications, use AEC-Q200 certified parts. Non-certified alternatives (RC series without AEC-Q200) are not suitable for automotive use regardless of electrical equivalence.

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