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RK73H1HTTC9313D Equivalent & Substitute Parts
Part Overview
The RK73H1HTTC9313D is a 931 kOhms ±0.5% chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 (0603 Metric) package. This component is classified as Automotive AEC-Q200 compliant with moisture-resistant thick film construction. The part is currently listed as Not For New Designs, indicating it has been superseded in the product line. Identification of equivalent substitute parts is necessary for ongoing support of existing designs, legacy system maintenance, and procurement continuity where this resistor value and specification set are required.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance Value | 931 kOhms |
| Tolerance | ±0.5% |
| Power Rating | 0.05W (1/20W) |
| Package / Case | 0201 (0603 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±200ppm/°C |
| Operating Temperature Range | -55°C ~ 155°C |
| Automotive Rating | AEC-Q200 |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the RK73H1HTTC9313D is determined by strict equivalence across the following critical parameters:
Mandatory Matching Parameters:
- Resistance value: 931 kOhms
- Tolerance: ±0.5%
- Power rating: 0.05W (1/20W)
- Package: 0201 (0603 Metric)
- Composition: Thick Film
- Temperature coefficient: ±200ppm/°C
- Operating temperature range: -55°C ~ 155°C
- Automotive compliance: AEC-Q200
- RoHS compliance: ROHS3
All substitute parts must maintain identical electrical and mechanical specifications across these parameters. Substitution is valid only when all listed criteria are met without deviation. The primary distinction between the main part and its substitute relates to product lifecycle status and feature set (moisture resistance designation).
Parameter Comparison
| Parameter | RK73H1HTTC9313D (Main Part) | RK73H1HTTCM9313D (Substitute) |
|---|---|---|
| Manufacturer | KOA Speer Electronics, Inc. | KOA Speer Electronics, Inc. |
| Resistance Value | 931 kOhms | 931 kOhms |
| Tolerance | ±0.5% | ±0.5% |
| Power Rating | 0.05W (1/20W) | 0.05W (1/20W) |
| Package / Case | 0201 (0603 Metric) | 0201 (0603 Metric) |
| Composition | Thick Film | Thick Film |
| Temperature Coefficient | ±200ppm/°C | ±200ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C |
| Automotive Rating | AEC-Q200 | AEC-Q200 |
| Size / Dimension | 0.024" L x 0.012" W (0.60mm x 0.30mm) | 0.024" L x 0.012" W (0.60mm x 0.30mm) |
| Height - Seated (Max) | 0.010" (0.26mm) | 0.010" (0.26mm) |
| Number of Terminations | 2 | 2 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| Product Status | Not For New Designs | Active |
Engineering Selection Recommendations
The RK73H1HTTCM9313D is the direct substitute for the RK73H1HTTC9313D. Both parts are manufactured by KOA Speer Electronics, Inc., and maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product lifecycle status: the original part is designated Not For New Designs, while the substitute is Active.
Selection of the RK73H1HTTCM9313D is appropriate for:
- Replacement in existing designs currently using RK73H1HTTC9313D
- Continuation of production runs requiring this specific resistor value and specification
- Applications requiring AEC-Q200 automotive compliance
- Designs operating within the -55°C ~ 155°C temperature range
- Systems requiring ROHS3 compliance and REACH unaffected status
Both parts carry identical certifications and regulatory compliance. The substitute part offers the advantage of Active product status, ensuring continued availability and manufacturing support.
Frequently Asked Questions (FAQ)
Q: Can RK73H1HTTCM9313D be used as a direct replacement for RK73H1HTTC9313D?
A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including resistance value (931 kOhms), tolerance (±0.5%), power rating (0.05W), package (0201), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), and AEC-Q200 automotive compliance. Direct substitution is valid without circuit modification.
Q: What is the difference between these two part numbers?
A: The RK73H1HTTCM9313D is the Active production equivalent of the RK73H1HTTC9313D. The original part is classified as Not For New Designs. Both parts share identical electrical specifications and physical dimensions. The substitute offers continued manufacturing support and availability.
Q: Are both parts suitable for automotive applications?
A: Yes. Both the RK73H1HTTC9313D and RK73H1HTTCM9313D are AEC-Q200 compliant, meeting automotive industry qualification standards. Both are rated for operation across -55°C ~ 155°C and are suitable for automotive circuit applications.
Q: Do these parts have the same package dimensions?
A: Yes. Both parts are packaged in 0201 (0603 Metric) format with identical dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB layout and assembly processes require no modification.
Q: Are there any compliance or regulatory differences?
A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8533.21.0030). Moisture Sensitivity Level is 1 (Unlimited) for both parts.
Q: Which part should be specified for new procurement?
A: The RK73H1HTTCM9313D should be specified for new procurement due to its Active product status. This ensures manufacturing continuity and long-term availability. The original part number is designated Not For New Designs.
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