RN732ATTD4023B25 Equivalent & Substitute Parts

Part Overview

The RN732ATTD4023B25 is a 402 kOhms ±0.1% thin film chip resistor rated at 0.1W (1/10W) in 0805 (2012 Metric) surface mount package manufactured by KOA Speer Electronics, Inc. This part features moisture resistant construction with a temperature coefficient of ±25ppm/°C and operates across -55°C to 155°C. The RN732ATTD4023B25 is classified as obsolete product status. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications.

Key Parameters

Parameter	Value
Resistance	402 kOhms
Tolerance	±0.1%
Power Rating	0.1W (1/10W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±25ppm/°C
Operating Temperature Range	-55°C ~ 155°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the RN732ATTD4023B25 are grouped based on strict electrical and mechanical compatibility criteria. All substitute parts maintain the following core parameters:

Critical Matching Parameters:

Resistance value: 402 kOhms
Tolerance: ±0.1%
Package: 0805 (2012 Metric)
Composition: Thin Film
Temperature Coefficient: ±25ppm/°C
Operating Temperature Range: -55°C ~ 155°C
Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameter - Power Rating: Substitute parts are available with equal or higher power ratings (0.1W, 0.125W, or 0.25W). Higher power ratings are electrically compatible as they provide equal or superior thermal performance in the same package footprint.

Product Status Consideration: Direct substitutes maintain active product status, ensuring long-term availability. Upgrade options provide enhanced features or improved specifications while maintaining core electrical parameters.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	Features
RN732ATTD4023B25	KOA Speer Electronics	402 kOhms	±0.1%	0.1	±25	-55 ~ 155	Obsolete	Moisture Resistant
RN73R2ATTD4023B25	KOA Speer Electronics	402 kOhms	±0.1%	0.125	±25	-55 ~ 155	Active	Automotive AEC-Q200, Moisture Resistant
5-2176094-1	TE Connectivity Passive Product	402 kOhms	±0.1%	0.25	±25	-55 ~ 155	Active	Thin Film
CPF0805B402KE1	TE Connectivity Passive Product	402 kOhms	±0.1%	0.1	±25	-55 ~ 155	Active	Thin Film
CRT0805-BY-4023ELF	Bourns Inc.	402 kOhms	±0.1%	0.125	±25	-55 ~ 155	Active	Current Sense Thin Film
RNCF0805BKE402K	Stackpole Electronics Inc	402 kOhms	±0.1%	0.25	±25	-55 ~ 155	Active	Automotive AEC-Q200 Thin Film
RT0805BRD07402KL	YAGEO	402 kOhms	±0.1%	0.125	±25	-55 ~ 155	Active	Thin Film
TNPW0805402KBETY	Vishay Dale	402 kOhms	±0.1%	0.125	±25	-55 ~ 125	Active	Military Thin Film
7-1879357-1	TE Connectivity Passive Product	402 kOhms	±0.1%	0.1	±10	-55 ~ 155	Active	Thin Film (Upgrade)
AT0805BRD07402KL	YAGEO	402 kOhms	±0.1%	0.125	±25	-55 ~ 155	Active	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant (Upgrade)
ERA-6AEB4023V	Panasonic Electronic Components	402 kOhms	±0.1%	0.125	±25	-55 ~ 155	Active	Automotive AEC-Q200 Thin Film (Upgrade)

Engineering Selection Recommendations

Direct Substitutes (Equal or Higher Power Rating):

For applications requiring exact functional replacement with active product status, the following parts are suitable:

CPF0805B402KE1 (TE Connectivity): Maintains identical 0.1W power rating and operating temperature range. Active product status ensures availability. ROHS3 compliant.
RN73R2ATTD4023B25 (KOA Speer Electronics): Increases power rating to 0.125W while maintaining all electrical specifications. Includes automotive AEC-Q200 qualification and moisture resistant features. Active product status.
RT0805BRD07402KL (YAGEO): 0.125W power rating with active product status. Established supply chain availability with 14,637 units in stock.

Higher Power Rating Substitutes:

For applications where thermal margin is beneficial:

5-2176094-1 (TE Connectivity): 0.25W power rating provides increased thermal headroom. Active product status with high inventory (13,018 units).
RNCF0805BKE402K (Stackpole Electronics): 0.25W rating with automotive AEC-Q200 qualification. Active product status.

Upgrade Options with Enhanced Specifications:

7-1879357-1 (TE Connectivity): Improved temperature coefficient of ±10ppm/°C (versus ±25ppm/°C) while maintaining 0.1W rating. Active product status.
AT0805BRD07402KL (YAGEO): Adds anti-sulfur and moisture resistant features with automotive AEC-Q200 qualification. 0.125W rating. Active product status.
ERA-6AEB4023V (Panasonic): Automotive AEC-Q200 qualified with 0.125W rating. High inventory availability (14,504 units). Active product status.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. TNPW0805402KBETY is RoHS non-compliant and should be selected only when legacy military specifications are required.

Frequently Asked Questions (FAQ)

Q: Can I use a higher power rating resistor as a substitute?

A: Yes. A resistor with equal or higher power rating (0.125W or 0.25W) is electrically compatible with the original 0.1W specification. Higher power ratings provide equal or superior thermal performance in the same 0805 package footprint and do not affect circuit function.

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

A: Direct substitutes maintain all original electrical specifications with active product status. Upgrade options provide enhanced features such as improved temperature coefficient, automotive qualification, or anti-sulfur construction while maintaining core electrical parameters.

Q: Are all substitute parts ROHS3 compliant?

A: All recommended substitutes except TNPW0805402KBETY are ROHS3 compliant. TNPW0805402KBETY is RoHS non-compliant and carries military specifications. Verify compliance requirements for your application before selection.

Q: Does the 0805 package dimension remain consistent across all substitutes?

A: Yes. All substitute parts use the 0805 (2012 Metric) package with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). Height variations are minimal (0.022" to 0.026" seated height) and do not affect PCB layout compatibility.

Q: What is the temperature coefficient and why does it matter?

A: Temperature coefficient indicates resistance change per degree Celsius. The original part and most substitutes specify ±25ppm/°C. The upgrade option 7-1879357-1 offers ±10ppm/°C for applications requiring tighter tolerance stability across temperature ranges.

Q: Can I substitute TNPW0805402KBETY for general commercial applications?

A: TNPW0805402KBETY is specified for military applications and is RoHS non-compliant. It is not recommended for commercial or consumer applications. Select ROHS3 compliant alternatives for standard applications.

Q: Which substitute has the highest inventory availability?

A: ERA-6AEB4023V (Panasonic) has the highest inventory with 14,504 units in stock, followed by RT0805BRD07402KL (YAGEO) with 14,637 units. Both are active products with automotive AEC-Q200 qualification.

Q: Are automotive AEC-Q200 qualified parts necessary for my application?

A: Automotive AEC-Q200 qualification is required only for automotive or harsh environment applications. For standard industrial or consumer applications, non-qualified alternatives such as CPF0805B402KE1 or RT0805BRD07402KL are suitable.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message