MCP4018T-103E/LT Microchip Integrated Circuit (SOT23 (6-Pin)) In Stock
The MCP4018T-103E/LT is a single-channel, 128-position digital potentiometer from Microchip with a 10 kΩ end-to-end resistance, controlled via a 2-wire I2C-compatible serial interface, housed in a compact SOT-23 6-pin package, suitable for programmable gain, offset, and calibration applications.
- Manufacturer
- Microchip
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- MCP4018T-103E/LT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3761(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 MCP4018T-103E/LT?
- 128-position digital potentiometer with 10 kΩ end-to-end resistance
- 2-wire I2C-compatible serial interface for easy microcontroller integration
- Single-supply operation from 1.8 V to 5.5 V
- Ultra-compact SOT-23 6-pin package for space-constrained designs
- Non-volatile wiper position retention through power cycles
- 1 kHz bandwidth suitable for audio and signal conditioning
What is MCP4018T-103E/LT used for?
The MCP4018T-103E/LT is used in programmable gain amplifier circuits, sensor calibration, and LCD contrast adjustment in consumer electronics and industrial equipment. Its I2C interface allows microcontrollers to dynamically adjust resistance in feedback networks for DACs, voltage dividers, and filter tuning. The device is also popular in portable instruments and wearable designs due to its tiny SOT-23 package and low supply voltage down to 1.8 V.
What are the specifications of MCP4018T-103E/LT?
| Pbfree Code | Yes |
| Factory Lead Time | 4Weeks |
| YTEOL | 0 |
| Bandwidth-Nom | 1kHz |
| Control Interface | 2-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 128 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP6,.08 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5.5V |
| Supply Current-Max | 0.6mA |
| Surface Mount | YES |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Total Resistance-Nom | 10000Ω |
| ## MCP4018T-103E/LT Alternates Showing results | Image |
| Package | SOT23 (6-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP4018T-103E/LT datasheet?
MCP4018T-103E/LT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4018T-103E/LT?
Compatible alternatives and drop-in replacements for MCP4018T-103E/LT:
suggested
suggested
suggested
suggested
suggested
suggested
Frequently Asked Questions
How many resistance positions does the MCP4018T-103E/LT provide, and what is its end-to-end resistance value?
The MCP4018T-103E/LT offers 128 wiper positions across a 10 kΩ end-to-end resistance, giving each step approximately 78 Ω of resolution. This fine granularity is well suited for precision gain and offset trimming in analog signal chains operating from 1.8 V to 5.5 V.
Which serial interface does this digital potentiometer use, and how does that simplify firmware integration?
The device uses a 2-wire I2C-compatible serial interface running at up to 400 kHz, so it shares the bus with other I2C peripherals without additional GPIO lines. This minimizes pin count on the host microcontroller and simplifies firmware with standard I2C read and write transactions.
In what types of calibration or trimming circuits is the MCP4018T-103E/LT commonly used?
This digital potentiometer is commonly used in programmable gain amplifiers, sensor offset calibration, and ADC reference voltage trimming where resistor values must be adjusted in 128 steps over a 10 kΩ range. Its compact SOT-23 6-pin footprint allows integration into tight PCB layouts typical of handheld and IoT devices.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 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.
More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.7420 | $0.74 |
| 25+ | $0.5545 | $13.86 |
| 100+ | $0.5272 | $52.72 |
| 500+ | $0.3889 | $194.45 |
| 1000+ | $0.3825 | $382.50 |
| 3000+ | $0.3761 | $1128.30 |
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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit