AF1206FR-07681RL Equivalent & Substitute Parts

Part Overview

The AF1206FR-07681RL is a 681 Ohm ±1% 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 692 pieces in stock. Substitute parts are necessary to address supply chain continuity, alternative sourcing options, or specific application requirements while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	681 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 to 155°C
Terminations	2
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the AF1206FR-07681RL is determined by strict equivalence across the following parameters:

Resistance value: 681 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 to 155°C
Termination count: 2
Moisture sensitivity level: 1 (Unlimited)

All listed substitute parts meet these core electrical and mechanical requirements. Variations in physical dimensions (length, width, height) within the 1206 package specification, packaging format (Tape & Reel vs. Cut Tape), and feature sets (anti-sulfur vs. moisture resistant) do not affect functional substitutability. Product status and compliance certifications are secondary considerations that may influence selection based on application requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff (ppm/°C)	Op. Temp Range (°C)	RoHS Status	MSL	Product Status
AF1206FR-07681RL	YAGEO	681 Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Active
AC1206FR-07681RL	YAGEO	681 Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Active
RC1206FR-07681RL	YAGEO	681 Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Active
CR1206-FX-6810ELF	Bourns Inc.	681 Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Active
CRCW1206681RFKEA	Vishay Dale	681 Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Active
CRCW1206681RFKTA	Vishay Dale	681 Ω	±1%	0.25	1206	±100	-55 to 155	RoHS non-compliant	1	Active
ERJ-8ENF6810V	Panasonic Electronic Components	681 Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Not For New Designs
RMCF1206FT681R	Stackpole Electronics Inc	681 Ω	±1%	0.25	1206	±100	-55 to 155	ROHS3	1	Active

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical compatibility with the AF1206FR-07681RL across the specified parameter set. Selection should be based on the following criteria:

For new designs and long-term production: AC1206FR-07681RL, RC1206FR-07681RL, CR1206-FX-6810ELF, CRCW1206681RFKEA, and RMCF1206FT681R are all active products with ROHS3 compliance and unlimited moisture sensitivity rating. These parts are suitable for automotive and industrial applications.

For RoHS compliance-critical applications: CRCW1206681RFKTA is marked as RoHS non-compliant and REACH affected. This part should not be selected for applications requiring full RoHS3 compliance.

For legacy or end-of-life designs: ERJ-8ENF6810V carries a "Not For New Designs" status. While electrically and mechanically equivalent, this part should only be used for sustaining production of existing designs where supply from active alternatives is unavailable.

For automotive applications: All parts except CRCW1206681RFKTA carry AEC-Q200 automotive qualification. Parts with explicit AEC-Q200 rating include the main part AF1206FR-07681RL, AC1206FR-07681RL, CRCW1206681RFKEA, CRCW1206681RFKTA, ERJ-8ENF6810V, and RMCF1206FT681R.

Frequently Asked Questions (FAQ)

Q: Can I substitute AF1206FR-07681RL with any of the listed parts without circuit redesign?

A: Yes. All listed substitute parts are electrically and mechanically equivalent within the 1206 package specification. They share identical resistance (681 Ω), tolerance (±1%), power rating (0.25W), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C to 155°C). No circuit redesign is required.

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

A: All three YAGEO series (AF, AC, RC) meet the core electrical and mechanical parameters for this 681 Ω 1206 resistor. The AF series features anti-sulfur coating, while AC and RC series feature moisture-resistant thick film composition. All are active products with ROHS3 compliance.

Q: Why is ERJ-8ENF6810V marked "Not For New Designs"?

A: This Panasonic part is electrically and mechanically equivalent but carries a "Not For New Designs" status, indicating it is in the end-of-life phase. It remains available for sustaining production of existing designs but should not be selected for new product development.

Q: Should I use CRCW1206681RFKTA if RoHS compliance is required?

A: No. CRCW1206681RFKTA is marked as RoHS non-compliant and REACH affected. For applications requiring RoHS3 compliance, select from AC1206FR-07681RL, RC1206FR-07681RL, CR1206-FX-6810ELF, CRCW1206681RFKEA, ERJ-8ENF6810V, or RMCF1206FT681R.

Q: Are there packaging format differences between these substitutes?

A: Yes. AF1206FR-07681RL, AC1206FR-07681RL, RC1206FR-07681RL, CR1206-FX-6810ELF, ERJ-8ENF6810V, and RMCF1206FT681R are supplied in Tape & Reel format. CRCW1206681RFKEA is supplied in Cut Tape & Digi-Reel format. Packaging format does not affect electrical or mechanical compatibility but may influence procurement and assembly processes.

Q: What is the significance of Moisture Sensitivity Level 1?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry MSL 1 rating, meaning they can be stored and handled without special moisture control measures, simplifying logistics and inventory management.

Q: Can I mix different manufacturers in the same production batch?

A: Yes. All substitute parts meet identical electrical and mechanical specifications. However, manufacturing process variations between suppliers may introduce minor differences in physical dimensions within the 1206 package tolerance. For applications with tight mechanical constraints, verify specific dimension data from each manufacturer's datasheet.

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