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RN732ATTD4640F10 Equivalent & Substitute Parts
Part Overview
The RN732ATTD4640F10 is a 464 Ohm ±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 features moisture-resistant construction with a temperature coefficient of ±10ppm/°C and operates across the temperature range of -55°C to 155°C. The part is currently classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility while offering enhanced performance characteristics or improved availability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 464 Ohms |
| Tolerance | ±1% |
| Power Rating | 0.1W (1/10W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thin Film |
| Temperature Coefficient | ±10ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| Moisture Sensitivity Level | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution of the RN732ATTD4640F10 is determined by strict adherence to the following electrical and mechanical parameters:
Primary Compatibility Criteria:
- Resistance value: 464 Ohms (exact match required)
- Package format: 0805 (2012 Metric) (exact match required)
- Composition: Thin Film (exact match required)
- Operating temperature range: -55°C to 155°C minimum (equal or superior)
- Moisture Sensitivity Level: 1 (Unlimited) or equivalent
- RoHS3 Compliance: Required
Secondary Selection Parameters:
- Tolerance: ±1% or tighter (equal or superior)
- Power rating: 0.1W or higher (equal or superior)
- Temperature coefficient: ±10ppm/°C or tighter (equal or superior)
Substitute parts are categorized into two groups:
Direct Substitute: RN73R2ATTD4640F10 maintains identical resistance, tolerance, and package specifications while offering increased power rating (0.125W) and active product status with automotive AEC-Q200 qualification.
Upgrade Substitutes: Susumu RG series components (RG2012N and RG2012V variants) provide enhanced tolerance specifications (±0.05% to ±0.02%), increased power rating (0.125W), automotive AEC-Q200 qualification, and anti-sulfur construction, all within the same 0805 package footprint.
Parameter Comparison
| Parameter | RN732ATTD4640F10 (Main) | RN73R2ATTD4640F10 | RG2012N-4640-B-T5 | RG2012N-4640-D-T5 | RG2012N-4640-W-T1 | RG2012N-4640-W-T5 | RG2012V-4640-B-T5 | RG2012V-4640-D-T5 | RG2012V-4640-P-T1 | RG2012V-4640-W-T1 | RG2012V-4640-W-T5 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | KOA Speer | KOA Speer | Susumu | Susumu | Susumu | Susumu | Susumu | Susumu | Susumu | Susumu | Susumu |
| Resistance | 464 Ω | 464 Ω | 464 Ω | 464 Ω | 464 Ω | 464 Ω | 464 Ω | 464 Ω | 464 Ω | 464 Ω | 464 Ω |
| Tolerance | ±1% | ±1% | ±0.1% | ±0.5% | ±0.05% | ±0.05% | ±0.1% | ±0.5% | ±0.02% | ±0.05% | ±0.05% |
| Power Rating | 0.1W | 0.125W | 0.125W | 0.125W | 0.125W | 0.125W | 0.125W | 0.125W | 0.125W | 0.125W | 0.125W |
| Package | 0805 | 0805 | 0805 | 0805 | 0805 | 0805 | 0805 | 0805 | 0805 | 0805 | 0805 |
| Composition | Thin Film | Thin Film | Thin Film | Thin Film | Thin Film | Thin Film | Thin Film | Thin Film | Thin Film | Thin Film | Thin Film |
| Temperature Coefficient | ±10ppm/°C | ±10ppm/°C | ±10ppm/°C | ±10ppm/°C | ±10ppm/°C | ±10ppm/°C | ±5ppm/°C | ±5ppm/°C | ±5ppm/°C | ±5ppm/°C | ±5ppm/°C |
| Operating Temperature | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C | -55°C to 155°C |
| Size / Dimension | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.079" L x 0.049" W (2.00mm x 1.25mm) |
| Height - Seated (Max) | 0.024" (0.60mm) | 0.024" (0.60mm) | 0.020" (0.50mm) | 0.020" (0.50mm) | 0.020" (0.50mm) | 0.020" (0.50mm) | 0.020" (0.50mm) | 0.020" (0.50mm) | 0.020" (0.50mm) | 0.020" (0.50mm) | 0.020" (0.50mm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| AEC-Q200 Automotive | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Anti-Sulfur Feature | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Engineering Selection Recommendations
For Direct Replacement (Minimum Specification Match):
The RN73R2ATTD4640F10 serves as the primary direct substitute for the obsolete RN732ATTD4640F10. Both components maintain identical resistance (464 Ohms), tolerance (±1%), and package specifications (0805). The RN73R2ATTD4640F10 offers increased power rating (0.125W versus 0.1W), active product status, and automotive AEC-Q200 qualification, providing enhanced reliability and availability without requiring circuit redesign.
For Enhanced Performance Applications:
The Susumu RG2012 series provides upgrade substitution options with tighter tolerance specifications and improved temperature stability. Selection within this series depends on application requirements:
- RG2012N-4640-B-T5 and RG2012V-4640-B-T5: ±0.1% tolerance for precision analog circuits
- RG2012N-4640-D-T5 and RG2012V-4640-D-T5: ±0.5% tolerance for general-purpose applications
- RG2012N-4640-W-T1, RG2012N-4640-W-T5, RG2012V-4640-W-T1, RG2012V-4640-W-T5: ±0.05% tolerance for high-precision applications
- RG2012V-4640-P-T1: ±0.02% tolerance for ultra-precision measurement circuits
All Susumu RG series variants feature anti-sulfur construction, automotive AEC-Q200 qualification, and reduced temperature coefficient (±5ppm/°C versus ±10ppm/°C), providing superior long-term stability and environmental resistance.
Compliance Considerations:
All substitute parts maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and REACH unaffected status, ensuring regulatory compatibility with the original component specifications.
Frequently Asked Questions (FAQ)
Q: Can RN73R2ATTD4640F10 be used as a direct replacement for RN732ATTD4640F10?
A: Yes. Both components share identical resistance (464 Ohms), tolerance (±1%), and 0805 package format. The RN73R2ATTD4640F10 provides higher power rating (0.125W) and active product status, making it a suitable direct substitute without circuit modification.
Q: What is the primary difference between KOA Speer RN73R2ATTD4640F10 and Susumu RG2012 series?
A: The RN73R2ATTD4640F10 maintains the original ±1% tolerance specification. Susumu RG2012 variants offer tighter tolerances (±0.05% to ±0.02%), improved temperature coefficient (±5ppm/°C), and anti-sulfur construction. Selection depends on circuit precision requirements.
Q: Are all substitute parts compatible with the original 0805 package footprint?
A: Yes. All listed substitutes use the 0805 (2012 Metric) package format with identical length (0.079" / 2.00mm) and width (0.049" / 1.25mm). Susumu components have slightly reduced maximum seated height (0.020" / 0.50mm versus 0.024" / 0.60mm), which does not affect PCB assembly compatibility.
Q: Do the substitute parts meet automotive qualification requirements?
A: The RN73R2ATTD4640F10 and all Susumu RG2012 series components carry AEC-Q200 automotive qualification. The original RN732ATTD4640F10 does not include this certification.
Q: What tolerance specification should be selected for general-purpose circuit applications?
A: For general-purpose applications, RG2012N-4640-D-T5 (±0.5% tolerance) or RG2012V-4640-D-T5 provides adequate precision while maintaining cost efficiency. For precision analog circuits, RG2012N-4640-B-T5 or RG2012V-4640-B-T5 (±0.1% tolerance) is recommended.
Q: How does temperature coefficient affect component selection?
A: The original RN732ATTD4640F10 and RN73R2ATTD4640F10 feature ±10ppm/°C temperature coefficient. Susumu RG2012V series components offer superior ±5ppm/°C coefficient, reducing resistance drift across the -55°C to 155°C operating range. This improvement is beneficial for precision measurement and signal conditioning circuits.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute components maintain ROHS3 compliance, matching the original RN732ATTD4640F10 specification.
Q: What is the significance of anti-sulfur construction in Susumu RG2012 components?
A: Anti-sulfur construction protects against sulfur-induced corrosion in high-humidity or industrial environments. This feature enhances long-term reliability in applications exposed to atmospheric sulfur compounds or corrosive gases.
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