RN732ATTD1182B50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1182B50 is an 11.8 kOhms ±0.1% thin film chip resistor in 0805 (2012 Metric) package rated at 0.1W (1/10W) power dissipation. Manufactured by KOA Speer Electronics, Inc., 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 for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Resistance	11.8 kOhms
Tolerance	±0.1%
Power Rating	0.1W (1/10W)
Package	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±50ppm/°C
Operating Temperature Range	-55°C to 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RN732ATTD1182B50 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Resistance value: 11.8 kOhms
Tolerance: ±0.1%
Package: 0805 (2012 Metric)
Composition: Thin Film
Operating temperature range: -55°C to 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
Compliance certifications: May include additional certifications (AEC-Q200, Anti-Sulfur, Moisture Resistant)
Product status: Active parts are preferred over obsolete

Substitute parts are grouped into two categories: direct equivalents (matching power rating) and upgrades (higher power rating or improved specifications).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Temp Range (°C)	Status	RoHS
RN732ATTD1182B50	KOA Speer	11.8 kΩ	±0.1%	0.1	±50	-55 to 155	Obsolete	ROHS3
RN73R2ATTD1182B50	KOA Speer	11.8 kΩ	±0.1%	0.125	±50	-55 to 155	Active	ROHS3
RT0805BRE0711K8L	YAGEO	11.8 kΩ	±0.1%	0.125	±50	-55 to 155	Active	ROHS3
1-2176093-1	TE Connectivity	11.8 kΩ	±0.1%	0.25	±25	-55 to 155	Active	Non-compliant
1676164-5	TE Connectivity	11.8 kΩ	±0.1%	0.1	±10	-55 to 155	Active	N/A
AT0805BRD0711K8L	YAGEO	11.8 kΩ	±0.1%	0.125	±25	-55 to 155	Active	ROHS3
CPF0805B11K8E1	TE Connectivity	11.8 kΩ	±0.1%	0.1	±25	-55 to 155	Active	ROHS3
ERA-6AEB1182V	Panasonic	11.8 kΩ	±0.1%	0.125	±25	-55 to 155	Active	ROHS3
MCU08050D1182BP100	Vishay	11.8 kΩ	±0.1%	0.125	±25	-55 to 125	Active	ROHS3
MCU08050D1182BP500	Vishay	11.8 kΩ	±0.1%	0.125	±25	-55 to 125	Active	ROHS3
PAT0805E1182BST1	Vishay Dale	11.8 kΩ	±0.1%	0.2	±25	-55 to 155	Active	ROHS3

Engineering Selection Recommendations

Direct Equivalents (Recommended Primary Substitutes):

RN73R2ATTD1182B50, RT0805BRE0711K8L, AT0805BRD0711K8L, and ERA-6AEB1182V are direct functional equivalents with matching 11.8 kOhms resistance, ±0.1% tolerance, and 0805 package. All are active products with ROHS3 compliance. RN73R2ATTD1182B50 maintains KOA Speer manufacturing continuity with automotive AEC-Q200 qualification. RT0805BRE0711K8L and ERA-6AEB1182V provide alternative sourcing from YAGEO and Panasonic respectively. AT0805BRD0711K8L adds anti-sulfur and moisture-resistant features with AEC-Q200 qualification.

Upgraded Substitutes (Higher Power Rating):

1-2176093-1 and PAT0805E1182BST1 provide increased power dissipation (0.25W and 0.2W respectively) while maintaining all critical electrical parameters. These are suitable for applications requiring thermal margin. PAT0805E1182BST1 maintains full temperature range (-55°C to 155°C) and ROHS3 compliance with automotive AEC-Q200 qualification.

Precision Upgrades (Improved Temperature Coefficient):

CPF0805B11K8E1 and 1676164-5 offer tighter temperature coefficients (±25ppm/°C and ±10ppm/°C respectively) for applications requiring enhanced stability. Both maintain 11.8 kOhms resistance and ±0.1% tolerance in 0805 package.

Caution:

MCU08050D1182BP100 and MCU08050D1182BP500 have reduced maximum operating temperature (125°C vs. 155°C). Use only in applications where -55°C to 125°C range is acceptable. 1-2176093-1 is RoHS non-compliant; verify regulatory requirements before selection.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher power rating than the original RN732ATTD1182B50?

A: Yes. Higher power ratings (0.125W, 0.2W, 0.25W) are acceptable substitutes. The original 0.1W rating establishes a minimum requirement; higher ratings provide additional thermal margin without affecting electrical performance at the specified resistance and tolerance.

Q: What is the difference between direct equivalents and upgraded substitutes?

A: Direct equivalents match the original 0.1W power rating and are pin-for-pin compatible. Upgraded substitutes have higher power ratings or improved specifications (lower temperature coefficient, additional certifications). Both categories maintain the critical 11.8 kOhms ±0.1% specification and 0805 package.

Q: Are all substitute parts ROHS3 compliant?

A: Most are ROHS3 compliant. Exception: 1-2176093-1 is RoHS non-compliant. Verify compliance requirements for your application before selection.

Q: Can I substitute MCU08050D1182BP100 or MCU08050D1182BP500 if my circuit operates at 155°C?

A: No. These parts have a maximum operating temperature of 125°C. The original RN732ATTD1182B50 and most substitutes support -55°C to 155°C. Select alternatives with full temperature range for high-temperature applications.

Q: What does Moisture Sensitivity Level 1 (Unlimited) mean?

A: MSL 1 indicates unlimited shelf life without moisture baking requirements. All listed substitutes maintain MSL 1, ensuring equivalent handling and storage conditions.

Q: Are automotive-qualified parts (AEC-Q200) required for my application?

A: AEC-Q200 qualification is optional unless specified by design requirements. RN73R2ATTD1182B50, AT0805BRD0711K8L, ERA-6AEB1182V, and PAT0805E1182BST1 include AEC-Q200 certification for automotive applications.

Q: What is the difference between temperature coefficient values?

A: Temperature coefficient indicates resistance change per degree Celsius. The original ±50ppm/°C is acceptable for general applications. Tighter coefficients (±25ppm/°C, ±10ppm/°C) provide better stability across temperature extremes, beneficial for precision circuits.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message