MCP4021-503E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock

Name: MCP4021-503E/SN
Brand: Microchip
SKU: MCP4021-503E/SN
Availability: InStock

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.

ACTIVEIntegrated CircuitVerified Jun 2026

Package / Visual Reference

MCP4021-503E/SNSmall Outline Packages

Quick Facts

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 Download

Official datasheet from Microchip

What are equivalent replacements for MCP4021-503E/SN?

Compatible alternatives and drop-in replacements for MCP4021-503E/SN:

MCP4021-503E/MSMicrochip Technology Inc

Low-cost, non-volatile, Digital Potentiometer

View Part →

Compare all alternatives & request quotes →

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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OriginChina (Authorized)

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MCP4021-503E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock

What are the key features of MCP4021-503E/SN?

What is MCP4021-503E/SN used for?

What are the specifications of MCP4021-503E/SN?

Compliance & Regulatory

Where can I find the MCP4021-503E/SN datasheet?

What are equivalent replacements for MCP4021-503E/SN?

Frequently Asked Questions

How many discrete resistance steps does the MCP4021-503E/SN provide across its 50 kΩ range?

What happens to the programmed wiper position when power is removed from the MCP4021?

In which supply-voltage environments can the MCP4021-503E/SN be used without a level shifter?

Related Guides

CSD87313DMS Synchronous Buck Power Stage Design Guide

STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection

C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC

STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security

Why Buy from FindMyChip

About Microchip

More from Microchip

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