RN732ATTD3653F50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3653F50 is a 365 kOhms ±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 operating range of -55°C to 155°C. The part is currently classified as obsolete. Due to its obsolete status, equivalent and substitute parts with active product status are available to ensure design continuity and supply chain reliability.

Key Parameters

Parameter	Value
Resistance	365 kOhms
Tolerance	±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 (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the RN732ATTD3653F50 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Resistance value: 365 kOhms
Package / Case: 0805 (2012 Metric)
Composition: Thin Film
Temperature Coefficient: ±50ppm/°C
Operating Temperature Range: -55°C to 155°C minimum
Moisture Sensitivity Level: 1 (Unlimited)
RoHS Compliance: ROHS3 Compliant

Allowable Variations:

Tolerance: May be equal to or tighter than ±1% (±1%, ±0.5%, ±0.25%, ±0.1% are acceptable)
Power Rating: May be equal to or greater than 0.1W (0.125W, 0.25W, 0.26W are acceptable)
Product Status: Active status preferred over obsolete
Additional Features: Automotive AEC-Q200 certification and anti-sulfur properties are enhancements that do not prevent substitution

All substitute parts listed maintain identical resistance, package, and thermal characteristics while offering improved tolerance specifications and/or higher power ratings with active product availability.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Product Status	Features
RN732ATTD3653F50	KOA Speer	365 kΩ	±1%	0.1	±50	-55 ~ 155	Obsolete	Moisture Resistant
RN73R2ATTD3653F50	KOA Speer	365 kΩ	±1%	0.125	±50	-55 ~ 155	Active	Automotive AEC-Q200, Moisture Resistant
RT0805FRE07365KL	YAGEO	365 kΩ	±1%	0.125	±50	-55 ~ 155	Active	Thin Film
AT0805DRE07365KL	YAGEO	365 kΩ	±0.5%	0.125	±50	-55 ~ 155	Active	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant
RNCF0805BTC365K	Stackpole Electronics	365 kΩ	±0.1%	0.25	±50	-55 ~ 155	Active	Automotive AEC-Q200
RNCF0805DTC365K	Stackpole Electronics	365 kΩ	±0.5%	0.25	±50	-55 ~ 155	Active	Automotive AEC-Q200
RT0805BRE07365KL	YAGEO	365 kΩ	±0.1%	0.125	±50	-55 ~ 155	Active	Thin Film
RT0805CRE07365KL	YAGEO	365 kΩ	±0.25%	0.125	±50	-55 ~ 155	Active	Thin Film
RT0805DRE07365KL	YAGEO	365 kΩ	±0.5%	0.125	±50	-55 ~ 155	Active	Thin Film
RT0805FRD07365KL	YAGEO	365 kΩ	±1%	0.125	±25	-55 ~ 155	Active	Thin Film
TNPW0805365KFHEA	Vishay Dale	365 kΩ	±1%	0.26	±50	-55 ~ 175	Active	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant

Engineering Selection Recommendations

Direct Replacement (Same Tolerance, Higher Power Rating):

RN73R2ATTD3653F50 from KOA Speer Electronics is the primary direct replacement. It maintains the same ±1% tolerance and ±50ppm/°C temperature coefficient as the original part while offering increased power rating (0.125W vs. 0.1W) and active product status. This part includes Automotive AEC-Q200 certification and moisture-resistant construction, providing enhanced reliability for automotive and industrial applications.

Tolerance-Enhanced Substitutes (Tighter Tolerance, Higher Power Rating):

For applications requiring improved tolerance specifications, the following parts provide tighter tolerance with higher power ratings and active status:

RT0805BRE07365KL (YAGEO): ±0.1% tolerance, 0.125W power rating
RT0805CRE07365KL (YAGEO): ±0.25% tolerance, 0.125W power rating
RT0805DRE07365KL (YAGEO): ±0.5% tolerance, 0.125W power rating
AT0805DRE07365KL (YAGEO): ±0.5% tolerance, 0.125W power rating with Automotive AEC-Q200 and anti-sulfur features

High-Precision Substitutes (Highest Tolerance Specification):

RNCF0805BTC365K from Stackpole Electronics offers the tightest tolerance specification (±0.1%) with 0.25W power rating and Automotive AEC-Q200 certification. This part is suitable for precision analog circuits and automotive applications requiring superior tolerance performance.

Extended Temperature Range Option:

TNPW0805365KFHEA from Vishay Dale extends the operating temperature range to -55°C ~ 175°C (vs. -55°C ~ 155°C) while maintaining ±1% tolerance and ±50ppm/°C temperature coefficient. This part includes anti-sulfur and Automotive AEC-Q200 features with 0.26W power rating.

All substitute parts maintain ROHS3 compliance, MSL 1 (Unlimited) moisture sensitivity level, and 0805 (2012 Metric) package compatibility with the original RN732ATTD3653F50.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with tighter tolerance than the original ±1%?

A: Yes. Tighter tolerance specifications (±0.5%, ±0.25%, ±0.1%) are acceptable substitutes as they provide equal or superior performance. The circuit design margin accommodates the original ±1% specification, so tighter tolerances do not create compatibility issues.

Q: What is the impact of using a higher power-rated resistor?

A: Higher power ratings (0.125W, 0.25W, 0.26W vs. 0.1W) do not negatively affect circuit performance. The resistor will operate at lower temperature rise under the same current conditions, improving reliability and longevity. Physical dimensions remain identical within the 0805 package.

Q: Are all substitute parts compatible with the same PCB footprint?

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). Maximum seated height varies slightly (0.024" to 0.026"), which does not affect PCB assembly compatibility.

Q: What is the difference between parts with and without Automotive AEC-Q200 certification?

A: Automotive AEC-Q200 certification indicates the part meets automotive industry reliability and qualification standards. Parts with this certification are suitable for automotive applications and high-reliability industrial environments. Parts without this certification are suitable for general industrial and consumer applications.

Q: Can I substitute RT0805FRD07365KL which has ±25ppm/°C temperature coefficient instead of ±50ppm/°C?

A: Yes. The ±25ppm/°C temperature coefficient is superior to the original ±50ppm/°C specification. This provides better temperature stability and is a valid substitute. The lower temperature coefficient reduces resistance drift over the operating temperature range.

Q: Why is the original RN732ATTD3653F50 marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. Substitute parts with active status ensure continued availability and supply chain reliability for new designs and production runs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity level, matching the environmental compliance of the original part.

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