RN732ATTD3923B50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3923B50 is a 392 kOhms ±0.1% thin film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.1W (1/10W) in 0805 (2012 Metric) surface mount package. This part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for new designs or production continuity.

Key Parameters

Parameter	Value
Resistance	392 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 ~ 155°C
Moisture Resistance	Yes
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the RN732ATTD3923B50 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 392 kOhms
Tolerance: ±0.1%
Package: 0805 (2012 Metric)
Composition: Thin Film
Operating temperature range: -55°C ~ 155°C minimum
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

Power rating: Equal to or greater than 0.1W
Temperature coefficient: ±50ppm/°C or better (lower values acceptable)
Moisture resistance: Acceptable if present
Automotive certification (AEC-Q200): Optional enhancement
Anti-sulfur feature: Optional enhancement

Substitute parts are grouped into two categories:

Direct Substitutes (Equal Power Rating): Parts rated at 0.1W or 0.125W that provide equivalent electrical performance without thermal derating.

Upgrade Substitutes (Higher Power Rating): Parts rated at 0.125W, 0.25W, or higher that provide enhanced thermal margin and are mechanically compatible within the 0805 package envelope.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Op Temp Range	Status	AEC-Q200
RN732ATTD3923B50	KOA Speer	392 kΩ	±0.1%	0.1	±50	-55 ~ 155°C	Obsolete	No
RN73R2ATTD3923B50	KOA Speer	392 kΩ	±0.1%	0.125	±50	-55 ~ 155°C	Active	Yes
RT0805BRE07392KL	YAGEO	392 kΩ	±0.1%	0.125	±50	-55 ~ 155°C	Active	No
5-2176094-0	TE Connectivity	392 kΩ	±0.1%	0.25	±25	-55 ~ 155°C	Active	No
AT0805BRD07392KL	YAGEO	392 kΩ	±0.1%	0.125	±25	-55 ~ 155°C	Active	Yes
CPF0805B392KE1	TE Connectivity	392 kΩ	±0.1%	0.1	±25	-55 ~ 155°C	Active	No
ERA-6AEB3923V	Panasonic	392 kΩ	±0.1%	0.125	±25	-55 ~ 155°C	Active	Yes
MCU08050D3923BP100	Vishay Beyschlag	392 kΩ	±0.1%	0.125	±25	-55 ~ 125°C	Active	No
PHP00805E3923BBT1	Vishay Dale	392 kΩ	±0.1%	0.63	±25	-55 ~ 155°C	Active	No
RG2012N-3923-B-T5	Susumu	392 kΩ	±0.1%	0.125	±10	-55 ~ 155°C	Active	Yes
RG2012P-3923-B-T5	Susumu	392 kΩ	±0.1%	0.125	±25	-55 ~ 155°C	Active	Yes

Engineering Selection Recommendations

For Direct Replacement (Equivalent Electrical Performance):

CPF0805B392KE1 (TE Connectivity Passive Product) is the primary equivalent for applications requiring identical 0.1W power rating. This part maintains the same electrical specifications while offering active product status and improved temperature coefficient (±25ppm/°C versus ±50ppm/°C). ROHS3 compliance and unlimited moisture sensitivity level ensure regulatory and environmental compatibility.

For Automotive Applications (AEC-Q200 Certified):

RN73R2ATTD3923B50 (KOA Speer Electronics) provides direct manufacturer continuity with automotive qualification. The 0.125W rating offers thermal margin while maintaining identical mechanical and electrical parameters. This part is recommended for automotive designs requiring supplier consistency.

ERA-6AEB3923V (Panasonic Electronic Components) offers AEC-Q200 certification with superior temperature coefficient (±25ppm/°C) and highest inventory availability (8976 units). Suitable for automotive and precision applications.

RG2012N-3923-B-T5 (Susumu) provides the lowest temperature coefficient (±10ppm/°C) among AEC-Q200 certified options, with anti-sulfur protection. Recommended for high-precision applications in automotive environments.

For Enhanced Thermal Performance:

5-2176094-0 (TE Connectivity Passive Product) offers 0.25W rating with improved temperature coefficient (±25ppm/°C). Recommended for applications with elevated ambient temperatures or higher power dissipation margins.

PHP00805E3923BBT1 (Vishay Dale Thin Film) provides maximum power rating (0.63W) with flame-proof and safety certifications. Note: RoHS non-compliant status restricts use to legacy or non-regulated applications.

For Standard Commercial Applications:

RT0805BRE07392KL (YAGEO) provides active status with 0.125W rating and high inventory (4338 units). Suitable for cost-sensitive applications without automotive requirements.

AT0805BRD07392KL (YAGEO) combines AEC-Q200 certification with anti-sulfur protection and improved temperature coefficient (±25ppm/°C). Recommended for applications requiring enhanced reliability without automotive mandate.

MCU08050D3923BP100 (Vishay Beyschlag) offers anti-sulfur protection and precision series classification. Operating temperature range limited to -55°C ~ 125°C; verify compatibility for applications requiring full -55°C ~ 155°C range.

Frequently Asked Questions (FAQ)

Q: Can RN732ATTD3923B50 be directly replaced with any active substitute?

A: Yes, multiple active substitutes maintain full electrical and mechanical compatibility. CPF0805B392KE1 provides identical 0.1W power rating. RN73R2ATTD3923B50, RT0805BRE07392KL, and ERA-6AEB3923V offer 0.125W rating with enhanced thermal margin. All maintain 392 kOhms ±0.1% resistance, 0805 package, and -55°C ~ 155°C operating range.

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

A: Direct substitutes (CPF0805B392KE1) match the original 0.1W power rating for applications with identical thermal requirements. Upgrade substitutes (RN73R2ATTD3923B50, 5-2176094-0, PHP00805E3923BBT1) provide higher power ratings (0.125W to 0.63W) for applications requiring thermal margin or operating in elevated temperature environments. All are mechanically compatible within the 0805 package.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed are ROHS3 compliant except PHP00805E3923BBT1, which is RoHS non-compliant. Verify regulatory requirements before selecting PHP00805E3923BBT1 for new designs or regulated applications.

Q: Which substitute is recommended for automotive applications?

A: RN73R2ATTD3923B50, ERA-6AEB3923V, RG2012N-3923-B-T5, and RG2012P-3923-B-T5 all carry AEC-Q200 certification. RG2012N-3923-B-T5 offers the lowest temperature coefficient (±10ppm/°C) for precision automotive circuits. RN73R2ATTD3923B50 provides direct KOA Speer manufacturer continuity.

Q: Does operating temperature range affect substitution?

A: MCU08050D3923BP100 has a limited operating range of -55°C ~ 125°C compared to the original -55°C ~ 155°C. Verify application maximum operating temperature before selection. All other substitutes support the full -55°C ~ 155°C range.

Q: What is the significance of temperature coefficient differences?

A: The original RN732ATTD3923B50 has ±50ppm/°C temperature coefficient. Substitute parts with ±25ppm/°C or ±10ppm/°C offer improved stability across temperature variations, reducing resistance drift in precision applications. Lower temperature coefficient is always acceptable as an upgrade parameter.

Q: Can I use PHP00805E3923BBT1 as a general replacement?

A: PHP00805E3923BBT1 is suitable only for applications requiring its specific features: flame-proof, moisture-resistant, and safety-rated construction. Its 0.63W power rating and RoHS non-compliance restrict use to legacy or specialized applications. For standard replacements, select from ROHS3-compliant alternatives.

Q: Which substitute offers the best inventory availability?

A: ERA-6AEB3923V (Panasonic) has the highest inventory at 8976 units. This part combines AEC-Q200 certification, active product status, and improved temperature coefficient (±25ppm/°C), making it suitable for both immediate procurement and long-term supply security.

Q: Are all substitutes available in Tape & Reel packaging?

A: Yes, all substitute parts listed are available in Tape & Reel (TR) packaging, suitable for automated assembly processes. Moisture Sensitivity Level is 1 (Unlimited) for all parts, eliminating special storage or handling requirements.

Q: What is the impact of switching from KOA Speer to another manufacturer?

A: All substitute manufacturers (YAGEO, TE Connectivity, Panasonic, Vishay, Susumu) produce thin film 0805 resistors meeting identical electrical specifications (392 kOhms ±0.1%). Switching manufacturers does not affect circuit performance when electrical parameters match. Verify supplier qualification and quality certifications for your application requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message