Equivalent & Substitute Parts for RN732ATTD1153F25

Part Overview

The RN732ATTD1153F25 is a 115 kOhms ±1% thin film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.1W (1/10W) in 0805 (2012 Metric) package format. This part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. Substitute parts maintain the same resistance value, package size, and core electrical characteristics while offering variations in tolerance, power rating, and product status to accommodate different application requirements.

Key Parameters

Parameter	Value
Resistance	115 kOhms
Tolerance	±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
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the RN732ATTD1153F25 are classified based on the following substitution criteria:

Direct Substitutes (Same Electrical & Mechanical Specifications): Parts that maintain 115 kOhms resistance, ±1% tolerance, 0805 package, and thin film composition. These components are functionally equivalent with identical electrical performance characteristics.

Upgrade Substitutes (Enhanced Specifications): Parts that maintain 115 kOhms resistance and 0805 package but offer improved tolerance (±0.1% to ±0.25%), higher power ratings (0.125W to 0.25W), or enhanced features (automotive AEC-Q200 certification, anti-sulfur coating, current sense capability). These parts provide superior performance margins and are suitable for applications requiring tighter tolerance or higher reliability standards.

Key Parameters Determining Substitutability:

Resistance value: 115 kOhms (fixed)
Package format: 0805 (2012 Metric) (fixed)
Composition: Thin Film (fixed)
Temperature coefficient: ±25ppm/°C (fixed)
Operating temperature range: -55°C ~ 155°C (fixed)
Tolerance: ±1% or better (acceptable range)
Power rating: 0.1W or higher (acceptable range)
MSL rating: 1 (Unlimited) (fixed)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Composition	Temp Coeff (ppm/°C)	Operating Temp (°C)	Package	Product Status	RoHS
RN732ATTD1153F25	KOA Speer Electronics	115k	±1%	0.1	Thin Film	±25	-55 ~ 155	0805	Obsolete	ROHS3
RN73R2ATTD1153F25	KOA Speer Electronics	115k	±1%	0.125	Thin Film	±25	-55 ~ 155	0805	Active	ROHS3
RT0805FRD07115KL	YAGEO	115k	±1%	0.125	Thin Film	±25	-55 ~ 155	0805	Active	ROHS3
2176094-1	TE Connectivity Passive Product	115k	±0.1%	0.25	Thin Film	±25	-55 ~ 155	0805	Active	ROHS3
AT0805BRD07115KL	YAGEO	115k	±0.1%	0.125	Thin Film	±25	-55 ~ 155	0805	Active	ROHS3
AT0805CRD07115KL	YAGEO	115k	±0.25%	0.125	Thin Film	±25	-55 ~ 155	0805	Active	ROHS3
AT0805DRD07115KL	YAGEO	115k	±0.5%	0.125	Thin Film	±25	-55 ~ 155	0805	Active	ROHS3
CPF0805B115KE1	TE Connectivity Passive Product	115k	±0.1%	0.1	Thin Film	±25	-55 ~ 155	0805	Active	ROHS3
CRT0805-BY-1153ELF	Bourns Inc.	115k	±0.1%	0.125	Thin Film	±25	-55 ~ 155	0805	Active	ROHS3
CRT0805-FW-1153ELF	Bourns Inc.	115k	±1%	0.125	Thin Film	±10	-55 ~ 155	0805	Active	ROHS3
ERA-6AEB1153V	Panasonic Electronic Components	115k	±0.1%	0.125	Thin Film	±25	-55 ~ 155	0805	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Obsolete Part Mitigation):

RN73R2ATTD1153F25 (KOA Speer Electronics) and RT0805FRD07115KL (YAGEO) serve as primary direct substitutes. Both maintain ±1% tolerance and 0805 package compatibility. RN73R2ATTD1153F25 offers automotive AEC-Q200 certification and moisture resistance features. RT0805FRD07115KL provides equivalent electrical performance with active product status and established supply availability.

For Enhanced Tolerance Applications:

AT0805BRD07115KL, AT0805CRD07115KL, and AT0805DRD07115KL (YAGEO AT series) provide tolerance options of ±0.1%, ±0.25%, and ±0.5% respectively, all with automotive AEC-Q200 certification and anti-sulfur coating. These are suitable for precision circuit applications requiring tighter tolerance control.

For Matched Power Rating with Improved Tolerance:

CPF0805B115KE1 (TE Connectivity) maintains the original 0.1W power rating while offering ±0.1% tolerance. This part is optimal for applications where power dissipation constraints match the original specification but improved accuracy is required.

For Current Sense Applications:

CRT0805-BY-1153ELF and CRT0805-FW-1153ELF (Bourns Inc.) incorporate current sense functionality. CRT0805-BY-1153ELF provides ±0.1% tolerance at 0.125W, while CRT0805-FW-1153ELF maintains ±1% tolerance with ±10ppm/°C temperature coefficient.

For Highest Availability and Automotive Compliance:

ERA-6AEB1153V (Panasonic Electronic Components) offers the largest inventory (13,694 pcs), ±0.1% tolerance, and automotive AEC-Q200 certification. This part is recommended for high-volume production requiring reliable supply and automotive-grade reliability.

For Maximum Power Margin:

2176094-1 (TE Connectivity Passive Product) provides the highest power rating at 0.25W with ±0.1% tolerance, suitable for applications requiring additional thermal headroom or higher dissipation capacity.

All substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) rating, and -55°C ~ 155°C operating temperature range, ensuring compatibility with the original design constraints.

Frequently Asked Questions (FAQ)

Q1: Can RN73R2ATTD1153F25 be used as a direct replacement for RN732ATTD1153F25?

A: Yes. Both parts share identical resistance (115 kOhms), tolerance (±1%), package (0805), composition (thin film), and operating temperature range (-55°C ~ 155°C). RN73R2ATTD1153F25 has a higher power rating (0.125W vs. 0.1W) and includes automotive AEC-Q200 certification, making it a suitable upgrade substitute. The increased power rating provides additional thermal margin without affecting circuit performance.

Q2: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes maintain all electrical and mechanical specifications of the original part. Upgrade substitutes improve one or more parameters (tolerance, power rating, or certifications) while maintaining core compatibility. Upgrade substitutes are backward-compatible but offer enhanced performance characteristics.

Q3: Are all substitute parts available in the same package size?

A: Yes. All substitute parts listed are packaged in 0805 (2012 Metric) format with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). PCB layout modifications are not required for substitution.

Q4: Which substitute part has the tightest tolerance?

A: 2176094-1 (TE Connectivity Passive Product) and multiple YAGEO AT series parts (AT0805BRD07115KL, AT0805CRD07115KL) offer ±0.1% tolerance, the tightest available among the listed substitutes. CPF0805B115KE1 and ERA-6AEB1153V also provide ±0.1% tolerance.

Q5: Are automotive-grade substitutes available?

A: Yes. RN73R2ATTD1153F25, AT0805BRD07115KL, AT0805CRD07115KL, AT0805DRD07115KL, CRT0805-BY-1153ELF, and ERA-6AEB1153V all carry automotive AEC-Q200 certification, suitable for automotive and high-reliability applications.

Q6: What is the temperature coefficient difference between substitute parts?

A: Most substitute parts maintain ±25ppm/°C temperature coefficient matching the original specification. CRT0805-FW-1153ELF (Bourns Inc.) offers an improved ±10ppm/°C temperature coefficient, providing superior temperature stability for precision applications.

Q7: Can I use a higher power-rated substitute in a circuit designed for 0.1W?

A: Yes. Higher power-rated substitutes (0.125W, 0.25W) are backward-compatible with 0.1W designs. The resistor will operate at lower power dissipation than its rating, resulting in improved thermal performance and reliability. No circuit modifications are required.

Q8: Which substitute has the best supply availability?

A: ERA-6AEB1153V (Panasonic Electronic Components) has the highest inventory level at 13,694 pieces, followed by 2176094-1 (TE Connectivity) at 3,862 pieces. Both parts are in active production status with established supply chains.

Q9: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant, maintaining environmental and regulatory compliance equivalent to the original RN732ATTD1153F25.

Q10: What is MSL 1 (Unlimited) moisture sensitivity rating?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All listed parts maintain this rating, eliminating moisture-related procurement or storage constraints.

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