RN732ATTD5233F25 Equivalent & Substitute Parts

Part Overview

The RN732ATTD5233F25 is a 523 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 component is classified as obsolete product status. Due to its obsolete designation, equivalent and substitute parts with active product status are necessary to ensure design continuity, procurement availability, and long-term supply chain reliability. Substitute parts maintain the core electrical specifications while offering enhanced features, improved tolerances, or automotive-grade certifications.

Key Parameters

Parameter	Value
Resistance	523 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

Substitution logic for the RN732ATTD5233F25 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Resistance value: 523 kOhms (exact match required)
Package / Case: 0805 (2012 Metric) (exact match required)
Composition: Thin Film (exact match required)
Temperature Coefficient: ±25ppm/°C (exact match required)
Operating Temperature Range: -55°C ~ 155°C minimum (equal or extended range acceptable)
Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Flexible Parameters (Substitution Allowed):

Tolerance: ±1% or tighter (±0.5%, ±0.25%, ±0.1% acceptable as upgrades)
Power Rating: 0.1W or higher (0.125W, 0.63W acceptable as upgrades)
Features: Additional features (Automotive AEC-Q200, Anti-Sulfur, Moisture Resistant) acceptable
Product Status: Active status preferred over obsolete

Substitute parts are grouped into two categories: direct substitutes (matching tolerance and power rating) and upgrade substitutes (improved tolerance and/or power rating with enhanced features).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Package	Temp Coeff	Op Temp Range	Product Status	Features
RN732ATTD5233F25	KOA Speer	523 kΩ	±1%	0.1	0805	±25ppm/°C	-55~155°C	Obsolete	Moisture Resistant
RN73R2ATTD5233F25	KOA Speer	523 kΩ	±1%	0.125	0805	±25ppm/°C	-55~155°C	Active	Automotive AEC-Q200, Moisture Resistant
RT0805FRD07523KL	YAGEO	523 kΩ	±1%	0.125	0805	±25ppm/°C	-55~155°C	Active	—
AT0805BRD07523KL	YAGEO	523 kΩ	±0.1%	0.125	0805	±25ppm/°C	-55~155°C	Active	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant
AT0805CRD07523KL	YAGEO	523 kΩ	±0.25%	0.125	0805	±25ppm/°C	-55~155°C	Active	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant
AT0805DRD07523KL	YAGEO	523 kΩ	±0.5%	0.125	0805	±25ppm/°C	-55~155°C	Active	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant
CPF0805B523KE1	TE Connectivity	523 kΩ	±0.1%	0.1	0805	±25ppm/°C	-55~155°C	Active	—
ERA-6AEB5233V	Panasonic	523 kΩ	±0.1%	0.125	0805	±25ppm/°C	-55~155°C	Active	Automotive AEC-Q200
MCU08050D5233BP500	Vishay Beyschlag	523 kΩ	±0.1%	0.125	0805	±25ppm/°C	-55~125°C	Active	Anti-Sulfur
PHP00805E5233BBT1	Vishay Dale	523 kΩ	±0.1%	0.63	0805	±25ppm/°C	-55~155°C	Active	Flame Proof, Moisture Resistant, Safety
RG2012P-5233-B-T5	Susumu	523 kΩ	±0.1%	0.125	0805	±25ppm/°C	-55~155°C	Active	Anti-Sulfur, Automotive AEC-Q200

Engineering Selection Recommendations

Direct Substitutes (Tolerance ±1%, Active Status):

RN73R2ATTD5233F25 (KOA Speer) and RT0805FRD07523KL (YAGEO) are direct functional equivalents with active product status. Both maintain ±1% tolerance and provide higher power rating (0.125W vs. 0.1W). RN73R2ATTD5233F25 includes Automotive AEC-Q200 certification, suitable for automotive applications. RT0805FRD07523KL offers standard thin film construction without automotive qualification.

Upgrade Substitutes (Improved Tolerance, Active Status):

AT0805BRD07523KL, AT0805CRD07523KL, and AT0805DRD07523KL (YAGEO AT series) provide tighter tolerances (±0.1%, ±0.25%, ±0.5% respectively) with Automotive AEC-Q200 certification and Anti-Sulfur features. These are suitable for precision applications requiring enhanced reliability.

CPF0805B523KE1 (TE Connectivity) matches the original 0.1W power rating with ±0.1% tolerance and active status, providing precision performance in the same power class.

ERA-6AEB5233V (Panasonic) offers ±0.1% tolerance with Automotive AEC-Q200 certification and highest inventory availability (21,760 pcs). Suitable for automotive and precision applications.

MCU08050D5233BP500 (Vishay Beyschlag) provides ±0.1% tolerance with Anti-Sulfur feature and active status. Operating temperature range limited to -55°C ~ 125°C (vs. -55°C ~ 155°C original specification).

PHP00805E5233BBT1 (Vishay Dale) offers highest power rating (0.63W) with ±0.1% tolerance, Flame Proof and Safety features. RoHS non-compliant status requires verification for regulatory compliance.

RG2012P-5233-B-T5 (Susumu) provides ±0.1% tolerance with Automotive AEC-Q200 and Anti-Sulfur features, suitable for automotive precision applications.

Selection Criteria:

For direct replacement: RN73R2ATTD5233F25 or RT0805FRD07523KL
For automotive applications: ERA-6AEB5233V, RG2012P-5233-B-T5, or AT series (YAGEO)
For precision applications: CPF0805B523KE1, ERA-6AEB5233V, or MCU08050D5233BP500
For high-power applications: PHP00805E5233BBT1

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with tighter tolerance (±0.1%) in place of the original ±1% specification?

A: Yes. Tighter tolerance is a performance upgrade and maintains backward compatibility. The substitute will perform within the original ±1% specification while offering improved accuracy.

Q: Is the 0805 package dimension identical across all substitute parts?

A: Yes. All substitute parts use 0805 (2012 Metric) package with identical footprint dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). Height variations exist (0.020" to 0.033" seated height) but do not affect PCB placement compatibility.

Q: Can I use MCU08050D5233BP500 if my design requires -55°C ~ 155°C operating range?

A: No. MCU08050D5233BP500 is rated only to 125°C maximum. For full -55°C ~ 155°C range, select ERA-6AEB5233V, RG2012P-5233-B-T5, AT series (YAGEO), RN73R2ATTD5233F25, RT0805FRD07523KL, CPF0805B523KE1, or PHP00805E5233BBT1.

Q: What is the difference between Automotive AEC-Q200 certified and non-certified parts?

A: AEC-Q200 certification indicates the part meets automotive industry reliability and quality standards. Parts with this certification (RN73R2ATTD5233F25, AT series, ERA-6AEB5233V, RG2012P-5233-B-T5) are qualified for automotive applications. Non-certified parts are suitable for general industrial and consumer applications.

Q: Is PHP00805E5233BBT1 suitable for my application if RoHS compliance is required?

A: No. PHP00805E5233BBT1 is marked as RoHS non-compliant. For RoHS3 compliance, select any other substitute part listed, all of which are ROHS3 Compliant.

Q: Can I substitute a 0.125W (1/8W) rated part for the original 0.1W (1/10W) specification?

A: Yes. Higher power rating provides design margin and is a safe upgrade. The part will operate within the original power specification while offering additional thermal headroom.

Q: Which substitute offers the best inventory availability?

A: ERA-6AEB5233V (Panasonic) has the highest inventory with 21,760 pcs in stock, compared to 676-1,156 pcs for other substitutes.

Q: Are all substitute parts moisture resistant?

A: No. Moisture resistance is explicitly listed for RN732ATTD5233F25 (original), RN73R2ATTD5233F25, AT series (YAGEO), PHP00805E5233BBT1, and ERA-6AEB5233V. RT0805FRD07523KL, CPF0805B523KE1, MCU08050D5233BP500, and RG2012P-5233-B-T5 do not list moisture resistance as a feature.

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