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MAX5474EKA Digital Potentiometer Equivalent & Substitute Parts
Part Overview
The MAX5474EKA is a digital potentiometer IC manufactured by Analog Devices Inc./Maxim Integrated, categorized as a Data Acquisition component. This device features a 50kΩ resistance with 32 taps, linear taper, and Up/Down (U/D, CS) interface control. It operates across a supply voltage range of 2.7V to 5.25V and is housed in a SOT-23-8 surface mount package.
The MAX5474EKA is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance (Ohms) | 50k |
| Number of Taps | 32 |
| Number of Circuits | 1 |
| Taper | Linear |
| Interface | Up/Down (U/D, CS) |
| Memory Type | Non-Volatile |
| Voltage - Supply | 2.7V ~ 5.25V |
| Temperature Coefficient (Typ) | 35ppm/°C |
| Mounting Type | Surface Mount |
| Package / Case | SOT-23-8 |
| Operating Temperature | -40°C ~ 85°C |
| Resistance - Wiper (Ohms) (Typ) | 600 |
Substitute Part Grouping Explanation
Substitution of the MAX5474EKA is determined by strict equivalence across the following electrical and mechanical parameters:
- Resistance value: 50kΩ
- Number of taps: 32
- Number of circuits: 1
- Taper characteristic: Linear
- Control interface: Up/Down (U/D, CS)
- Memory type: Non-Volatile
- Supply voltage range: 2.7V ~ 5.25V
- Temperature coefficient: 35ppm/°C
- Package type: SOT-23-8
- Operating temperature range: -40°C ~ 85°C
- Wiper resistance: 600Ω (typical)
The MAX5474EKA+T is a direct substitute that maintains identical electrical specifications and mechanical compatibility. The primary distinction is packaging format: the substitute is supplied in Tape & Reel (TR) configuration, whereas the main part number does not specify a packaging format.
Parameter Comparison
| Parameter | MAX5474EKA | MAX5474EKA+T |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Resistance (Ohms) | 50k | 50k |
| Number of Taps | 32 | 32 |
| Number of Circuits | 1 | 1 |
| Taper | Linear | Linear |
| Interface | Up/Down (U/D, CS) | Up/Down (U/D, CS) |
| Memory Type | Non-Volatile | Non-Volatile |
| Voltage - Supply | 2.7V ~ 5.25V | 2.7V ~ 5.25V |
| Temperature Coefficient (Typ) | 35ppm/°C | 35ppm/°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | SOT-23-8 | SOT-23-8 |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Resistance - Wiper (Ohms) (Typ) | 600 | 600 |
| Product Status | Obsolete | Active |
| RoHS Status | RoHS non-compliant | ROHS3 Compliant |
| Packaging Format | Not specified | Tape & Reel (TR) |
Engineering Selection Recommendations
The MAX5474EKA+T is the direct functional equivalent of the MAX5474EKA. Both parts share identical electrical characteristics and mechanical specifications, ensuring pin-for-pin and functional compatibility.
The MAX5474EKA is classified as obsolete, whereas the MAX5474EKA+T maintains active product status. For new designs or ongoing production requiring this digital potentiometer specification, the MAX5474EKA+T is the appropriate selection.
The MAX5474EKA+T carries ROHS3 compliance certification, whereas the original MAX5474EKA is RoHS non-compliant. The substitute also carries REACH Unaffected status. These compliance improvements make the MAX5474EKA+T suitable for applications subject to environmental and regulatory requirements.
Frequently Asked Questions (FAQ)
Q: Can MAX5474EKA+T be used as a direct replacement for MAX5474EKA?
A: Yes. Both parts are electrically and mechanically identical. The MAX5474EKA+T is supplied in Tape & Reel packaging, whereas the MAX5474EKA packaging format is not specified. Both are compatible with the same circuit designs and PCB layouts.
Q: What is the difference between MAX5474EKA and MAX5474EKA+T?
A: The primary difference is packaging format. The MAX5474EKA+T is supplied in Tape & Reel (TR) configuration for automated assembly. Additionally, the MAX5474EKA+T is active product status with ROHS3 compliance, while the MAX5474EKA is obsolete and RoHS non-compliant.
Q: Are there any electrical specification differences between these parts?
A: No. Both parts maintain identical electrical specifications: 50kΩ resistance, 32 taps, linear taper, Up/Down (U/D, CS) interface, non-volatile memory, 2.7V to 5.25V supply voltage, 35ppm/°C temperature coefficient, SOT-23-8 package, -40°C to 85°C operating temperature, and 600Ω typical wiper resistance.
Q: Why is the MAX5474EKA obsolete?
A: The MAX5474EKA is classified as obsolete by the manufacturer. The MAX5474EKA+T represents the current active product offering with equivalent functionality and improved compliance status.
Q: What does the "+T" suffix indicate?
A: The "+T" suffix indicates Tape & Reel packaging format, which is standard for high-volume automated assembly operations.
Q: Is the SOT-23-8 package identical for both parts?
A: Yes. Both parts use the SOT-23-8 surface mount package with identical pin configuration and mechanical dimensions.
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