MCP4021-503E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP4021-503E/SN is a Microchip single-channel 50 kΩ non-volatile digital potentiometer with 64 positions, increment/decrement SPI-compatible interface, and 1.8 V to 5.5 V supply. In SOIC-8. From $1.10 in stock worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4021-503E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1745(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP4021-503E/SN?
- 50 kΩ end-to-end resistance with 64 programmable wiper positions
- Non-volatile memory retains wiper position through power cycles
- Increment/decrement control interface compatible with 1.8 V to 5.5 V logic
- Low quiescent current for battery-powered trims
- SOIC-8 footprint replacing mechanical potentiometers
- Operating temperature -40°C to 85°C for industrial environments
What is MCP4021-503E/SN used for?
The MCP4021-503E/SN replaces mechanical trimmers in audio volume, LCD contrast, and bias calibration circuits where digital control via a microcontroller is preferred. Its non-volatile wiper memory stores the last programmed 64-position setting across power cycles, removing the need for software re-initialization at startup. Compact SOIC-8 packaging suits space-constrained PCBs in consumer electronics and industrial calibration equipment.
What are the specifications of MCP4021-503E/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Additional Feature | NONVOLATILE MEMORY |
| Bandwidth-Nom | 0.2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 64 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.23 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5V |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.45mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Total Resistance-Nom | 50000Ω |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP4021-503E/SN datasheet?
MCP4021-503E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4021-503E/SN?
Compatible alternatives and drop-in replacements for MCP4021-503E/SN:
Frequently Asked Questions
How many discrete resistance steps does the MCP4021-503E/SN provide across its 50 kΩ range?
The device offers 64 wiper positions across the 50 kΩ end-to-end resistance, giving a step resolution of approximately 781 Ω per step, which is fine enough for audio volume and bias trim applications.
What happens to the programmed wiper position when power is removed from the MCP4021?
The non-volatile EEPROM inside the MCP4021 retains the last wiper position through unlimited power cycles without requiring a backup battery, so the device resumes at the stored 64-position setting on the next power-up.
In which supply-voltage environments can the MCP4021-503E/SN be used without a level shifter?
The MCP4021 operates with a supply from 1.8 V to 5.5 V, covering 1.8 V, 2.5 V, 3.3 V, and 5 V systems, so it interfaces directly to most modern microcontroller I/O without external level-shifting components.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1745 | $0.17 |
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