RN732ATTD6811B50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD6811B50 is a 6.81 kOhms ±0.1% thin film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.1W (1/10W) in 0805 (2012 Metric) package format. This component features moisture-resistant construction with a temperature coefficient of ±50ppm/°C and operates across -55°C to 155°C. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Key Parameters

Parameter	Value
Resistance	6.81 kOhms
Tolerance	±0.1%
Power Rating	0.1W (1/10W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±50ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RN732ATTD6811B50 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Resistance value: 6.81 kOhms
Tolerance: ±0.1%
Package / Case: 0805 (2012 Metric)
Composition: Thin Film
Operating Temperature Range: -55°C ~ 155°C minimum
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

Power rating may be equal to or greater than 0.1W (1/10W)
Temperature coefficient may be equal to or lower (tighter) than ±50ppm/°C
Additional features (automotive qualification, anti-sulfur treatment) do not preclude substitution

Substitute parts are grouped into two categories:

Direct Substitutes (Equal or Higher Power Rating): Parts with 0.125W (1/8W) or 0.2W (1/5W) power ratings that maintain all other critical parameters. These provide enhanced thermal margin while maintaining electrical equivalence.

Upgrade Substitutes (Enhanced Specifications): Parts with improved temperature coefficients, automotive certifications (AEC-Q200), or specialized features (anti-sulfur, current sense) that exceed baseline requirements while maintaining core electrical compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op Temp Range (°C)	Product Status	RoHS Status
RN732ATTD6811B50	KOA Speer Electronics	6.81 kΩ	±0.1%	0.1	±50	-55 ~ 155	Obsolete	ROHS3
RN73R2ATTD6811B50	KOA Speer Electronics	6.81 kΩ	±0.1%	0.125	±50	-55 ~ 155	Active	ROHS3
RT0805BRE076K81L	YAGEO	6.81 kΩ	±0.1%	0.125	±50	-55 ~ 155	Active	ROHS3
1676418-5	TE Connectivity Passive Product	6.81 kΩ	±0.1%	0.1	±10	-55 ~ 155	Active	Not applicable
AT0805BRD076K81L	YAGEO	6.81 kΩ	±0.1%	0.125	±25	-55 ~ 155	Active	ROHS3
CPF0805B6K81E1	TE Connectivity Passive Product	6.81 kΩ	±0.1%	0.1	±25	-55 ~ 155	Active	ROHS3
CRT0805-BY-6811ELF	Bourns Inc.	6.81 kΩ	±0.1%	0.125	±25	-55 ~ 155	Active	ROHS3
ERA-6AEB6811V	Panasonic Electronic Components	6.81 kΩ	±0.1%	0.125	±25	-55 ~ 155	Active	ROHS3
MCU08050D6811BP100	Vishay Beyschlag/Draloric/BC Components	6.81 kΩ	±0.1%	0.125	±25	-55 ~ 125	Active	ROHS3
MCU08050D6811BP500	Vishay Beyschlag/Draloric/BC Components	6.81 kΩ	±0.1%	0.125	±25	-55 ~ 125	Active	ROHS3
PAT0805E6811BST1	Vishay Dale Thin Film	6.81 kΩ	±0.1%	0.2	±25	-55 ~ 155	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Equivalent Electrical Performance):

Select RN73R2ATTD6811B50 (KOA Speer Electronics) or RT0805BRE076K81L (YAGEO) when direct substitution with identical power rating is not critical. Both parts maintain 6.81 kOhms ±0.1% resistance, 0805 package, and -55°C to 155°C operating range. RN73R2ATTD6811B50 adds automotive AEC-Q200 qualification; RT0805BRE076K81L provides active product status with established supply chain availability.

For Precision Applications (Improved Temperature Stability):

Select CPF0805B6K81E1 (TE Connectivity) or 1676418-5 (TE Connectivity) when tighter temperature coefficient performance is required. CPF0805B6K81E1 offers ±25ppm/°C with 0.1W rating matching original specifications. Part 1676418-5 provides superior ±10ppm/°C temperature coefficient at 0.1W, though RoHS status is not applicable.

For Automotive Applications (AEC-Q200 Qualified):

Select AT0805BRD076K81L (YAGEO), ERA-6AEB6811V (Panasonic), or PAT0805E6811BST1 (Vishay Dale) when automotive qualification is required. All three maintain 6.81 kOhms ±0.1%, 0805 package, and -55°C to 155°C range. AT0805BRD076K81L and ERA-6AEB6811V provide 0.125W rating; PAT0805E6811BST1 offers enhanced 0.2W (1/5W) power rating with anti-sulfur and moisture-resistant features.

For Current Sense Applications:

Select CRT0805-BY-6811ELF (Bourns Inc.) when current sensing functionality is required. This part maintains 6.81 kOhms ±0.1%, 0805 package, 0.125W rating, and -55°C to 155°C operating range with specialized current sense thin film construction.

For Extended Temperature Range (Full -55°C to 155°C):

Avoid MCU08050D6811BP100 and MCU08050D6811BP500 (Vishay) if full -55°C to 155°C operation is required; these parts are limited to -55°C to 125°C. Select alternatives with confirmed -55°C to 155°C rating for applications requiring full temperature range coverage.

Frequently Asked Questions (FAQ)

Q: Can RN732ATTD6811B50 be replaced with a 0.125W (1/8W) rated resistor?

A: Yes. The substitute parts RN73R2ATTD6811B50, RT0805BRE076K81L, AT0805BRD076K81L, CRT0805-BY-6811ELF, ERA-6AEB6811V, MCU08050D6811BP100, and MCU08050D6811BP500 all provide 0.125W power rating while maintaining 6.81 kOhms ±0.1% resistance and 0805 package compatibility. Higher power ratings provide thermal margin without affecting electrical performance.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes maintain all original specifications including power rating and temperature coefficient. Upgrade substitutes offer enhanced features such as improved temperature coefficient (±25ppm/°C or ±10ppm/°C versus ±50ppm/°C), automotive AEC-Q200 qualification, anti-sulfur treatment, or higher power ratings. All maintain core electrical compatibility (6.81 kOhms ±0.1%, 0805 package, -55°C to 155°C).

Q: Are all substitute parts ROHS3 compliant?

A: Most substitute parts are ROHS3 compliant. Exception: Part 1676418-5 (TE Connectivity) has RoHS status listed as "Not applicable." Verify RoHS compliance requirements for your specific application before selection.

Q: Can MCU08050D6811BP100 or MCU08050D6811BP500 be used in applications requiring -55°C to 155°C operation?

A: No. Both MCU series parts are limited to -55°C to 125°C operating temperature range. For applications requiring full -55°C to 155°C coverage, select alternative parts such as RN73R2ATTD6811B50, RT0805BRE076K81L, AT0805BRD076K81L, ERA-6AEB6811V, PAT0805E6811BST1, or CPF0805B6K81E1.

Q: What is the significance of temperature coefficient in resistor selection?

A: Temperature coefficient indicates resistance value drift across operating temperature range. The original RN732ATTD6811B50 has ±50ppm/°C. Substitute parts with ±25ppm/°C or ±10ppm/°C provide tighter tolerance stability across temperature extremes. Selection depends on circuit precision requirements; higher-stability parts (lower ppm/°C) are preferred for precision analog circuits.

Q: Are automotive AEC-Q200 qualified parts interchangeable with non-qualified parts?

A: Yes, for non-automotive applications. AEC-Q200 qualified parts (RN73R2ATTD6811B50, AT0805BRD076K81L, ERA-6AEB6811V, PAT0805E6811BST1) meet automotive reliability standards and can be used in general industrial and consumer applications. However, non-qualified parts should not be used in automotive applications requiring AEC-Q200 certification.

Q: What packaging formats are available for these 6.81 kOhms ±0.1% 0805 resistors?

A: All substitute parts use 0805 (2012 Metric) package format with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). Packaging options include Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel®. Height variations range from 0.022" to 0.026" (0.55mm to 0.65mm), which is within standard PCB assembly tolerances.

Q: Which substitute part offers the best overall compatibility with the original RN732ATTD6811B50?

A: RN73R2ATTD6811B50 (KOA Speer Electronics) provides the closest compatibility as a direct KOA Speer product from the same RN73 series family, with identical resistance, tolerance, package, and operating temperature range. It is active product status with automotive AEC-Q200 qualification and ROHS3 compliance. For multi-source alternatives, RT0805BRE076K81L (YAGEO) offers equivalent specifications with strong supply chain availability.

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