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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for MCP4018T-103E/LT:
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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.
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| 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 |
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