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RN732ATTD3013F50 Equivalent & Substitute Parts
Part Overview
The RN732ATTD3013F50 is a 301 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. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 301 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 | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the RN732ATTD3013F50 is determined by the following critical parameters:
Mandatory Compatibility Parameters:
- Resistance value: 301 kOhms (exact match required)
- Package / Case: 0805 (2012 Metric) (physical and electrical compatibility)
- Composition: Thin Film (electrical performance characteristics)
- Operating temperature range: -55°C ~ 155°C (minimum requirement)
- Tolerance: ±1% or better (equal or tighter tolerance acceptable)
- Power rating: 0.1W or higher (equal or greater power dissipation capacity acceptable)
Compliance Parameters:
- RoHS3 Compliant (regulatory requirement)
- Moisture Sensitivity Level: 1 (Unlimited) (handling and storage compatibility)
Substitute parts are categorized as direct equivalents or upgrades based on tolerance and power rating improvements while maintaining all mandatory compatibility parameters.
Parameter Comparison
| Part Number | Manufacturer | Resistance | Tolerance | Power (W) | Package | Temp Coeff (ppm/°C) | Operating Temp (°C) | Product Status | Features |
|---|---|---|---|---|---|---|---|---|---|
| RN732ATTD3013F50 | KOA Speer | 301k | ±1% | 0.1 | 0805 | ±50 | -55 ~ 155 | Obsolete | Moisture Resistant |
| RN73R2ATTD3013F50 | KOA Speer | 301k | ±1% | 0.125 | 0805 | ±50 | -55 ~ 155 | Active | Automotive AEC-Q200, Moisture Resistant |
| RT0805FRE07301KL | YAGEO | 301k | ±1% | 0.125 | 0805 | ±50 | -55 ~ 155 | Active | Thin Film |
| AT0805DRE07301KL | YAGEO | 301k | ±0.5% | 0.125 | 0805 | ±50 | -55 ~ 155 | Active | Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant |
| RNCF0805BTC301K | Stackpole | 301k | ±0.1% | 0.25 | 0805 | ±50 | -55 ~ 155 | Active | Automotive AEC-Q200 |
| RNCF0805DTC301K | Stackpole | 301k | ±0.5% | 0.25 | 0805 | ±50 | -55 ~ 155 | Active | Automotive AEC-Q200 |
| RT0805BRE07301KL | YAGEO | 301k | ±0.1% | 0.125 | 0805 | ±50 | -55 ~ 155 | Active | Thin Film |
| RT0805CRE07301KL | YAGEO | 301k | ±0.25% | 0.125 | 0805 | ±50 | -55 ~ 155 | Active | Thin Film |
| RT0805DRE07301KL | YAGEO | 301k | ±0.5% | 0.125 | 0805 | ±50 | -55 ~ 155 | Active | Thin Film |
| RT0805FRD07301KL | YAGEO | 301k | ±1% | 0.125 | 0805 | ±25 | -55 ~ 155 | Active | Thin Film |
| TNPW0805301KFEEA | Vishay Dale | 301k | ±1% | 0.26 | 0805 | ±25 | -55 ~ 175 | Active | Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant |
Engineering Selection Recommendations
Direct Equivalent (Same Tolerance, Active Status):
RN73R2ATTD3013F50 (KOA Speer) and RT0805FRE07301KL (YAGEO) serve as direct functional equivalents to the obsolete RN732ATTD3013F50. Both maintain ±1% tolerance and 301 kOhms resistance in 0805 package. RN73R2ATTD3013F50 includes automotive AEC-Q200 qualification and increased power rating (0.125W vs. 0.1W). RT0805FRE07301KL offers equivalent specifications with active product status and higher inventory availability.
Upgrade Options (Improved Tolerance):
Parts with tighter tolerance specifications (±0.5%, ±0.25%, ±0.1%) provide enhanced precision for applications requiring stricter resistance accuracy. RT0805BRE07301KL (±0.1%), RT0805CRE07301KL (±0.25%), and RT0805DRE07301KL (±0.5%) from YAGEO maintain 0.125W power rating. RNCF0805BTC301K (±0.1%) and RNCF0805DTC301K (±0.5%) from Stackpole offer increased power rating (0.25W) with automotive AEC-Q200 certification.
Enhanced Performance Option:
TNPW0805301KFEEA (Vishay Dale) provides the highest power rating (0.26W), extended operating temperature range (-55°C to 175°C), improved temperature coefficient (±25ppm/°C), and automotive AEC-Q200 qualification with anti-sulfur and moisture-resistant features. This part is suitable for applications requiring enhanced thermal performance and environmental protection.
Automotive Applications:
For automotive or high-reliability applications, select parts with AEC-Q200 certification: RN73R2ATTD3013F50, AT0805DRE07301KL, RNCF0805BTC301K, RNCF0805DTC301K, or TNPW0805301KFEEA.
All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring regulatory and handling compatibility with the original specification.
Frequently Asked Questions (FAQ)
Q: Can I substitute RN732ATTD3013F50 with a part having different resistance value?
A: No. The resistance value must be exactly 301 kOhms. Substitution is limited to parts with identical resistance specifications.
Q: What is the minimum acceptable tolerance for substitution?
A: The original part specifies ±1% tolerance. Substitute parts with equal or tighter tolerance (±0.5%, ±0.25%, ±0.1%) are acceptable. Parts with looser tolerance are not suitable.
Q: Can I use a substitute part with lower power rating than 0.1W?
A: No. The substitute part must have equal or greater power rating. Using a lower-rated component may result in thermal stress and component failure.
Q: Is the 0805 package dimension critical for substitution?
A: Yes. The 0805 (2012 Metric) package dimension is mandatory for PCB compatibility. All substitute parts must use the identical package designation.
Q: What is the difference between the RN73R2ATTD3013F50 and the original RN732ATTD3013F50?
A: The RN73R2ATTD3013F50 is an active product with identical electrical specifications (301k, ±1%, 0805 package) but includes automotive AEC-Q200 qualification and slightly higher power rating (0.125W vs. 0.1W). The original part is obsolete.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the regulatory requirement of the original part.
Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?
A: MSL 1 indicates the component has unlimited shelf life and requires no special moisture-control handling during storage or assembly. All substitute parts maintain this specification.
Q: Which substitute part offers the best thermal performance?
A: TNPW0805301KFEEA provides the highest power rating (0.26W) and extended operating temperature range (-55°C to 175°C), making it suitable for applications with elevated thermal requirements.
Q: Can I mix different substitute parts in the same circuit board?
A: Yes, provided all parts meet the circuit's electrical requirements. However, for consistency and traceability, using a single substitute part number across identical circuit positions is recommended.
Q: What is the temperature coefficient, and why does it matter?
A: Temperature coefficient (ppm/°C) indicates how much the resistance changes per degree Celsius. The original part specifies ±50ppm/°C. Most substitutes maintain this specification; however, RT0805FRD07301KL and TNPW0805301KFEEA offer improved ±25ppm/°C, providing better stability across temperature variations.
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