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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1745 | $0.17 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”