MCP4018T-104E/LT Microchip Integrated Circuit (SOT23 (6-Pin)) In Stock
Microchip MCP4018T-104E/LT is a single-channel I2C digital potentiometer with 100 kΩ end-to-end resistance and 128 wiper positions, housed in a miniature 6-pin SOT-23 package. It operates from 2.7 V to 5.5 V and uses a 2-wire I2C serial interface with a 100 Hz nominal control bandwidth. Designed for compact LCD bias, sensor trimming, and portable device calibration circuits.
- Manufacturer
- Microchip
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- MCP4018T-104E/LT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5790(MOQ 100)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single-channel digital potentiometer with 100 kΩ resistance and 128 positions
- 2-wire I2C interface minimizing pin count to just 2 control lines
- 2.7 V to 5.5 V supply range for 3.3 V and 5 V system compatibility
- Ultra-compact 6-pin SOT-23 package for space-constrained PCB designs
- RoHS-compliant lead-free construction (JESD-609 e3)
Applications
MCP4018T-104E/LT is used in portable LCD display bias adjustment, sensor signal-level trimming, and battery-operated instrument calibration where minimal pin usage and small board footprint are critical. Its I2C interface allows daisy-chaining multiple digital potentiometers on a shared 2-wire bus, reducing GPIO consumption on host microcontrollers in multi-channel adjustment systems.
Specifications
| Pbfree Code | Yes |
| Factory Lead Time | 13Weeks |
| YTEOL | 0 |
| Bandwidth-Nom | 0.1kHz |
| 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 | 100000Ω |
| 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
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does MCP4018T-104E/LT provide, and what resistance step size does this give over 100 kΩ?
MCP4018T-104E/LT offers 128 wiper positions over a 100 kΩ end-to-end resistance, giving a step size of approximately 787 Ω per step. This resolution is adequate for coarse trimming and bias adjustment tasks, though for finer resolution over the same 100 kΩ range, a 256-position variant would halve the step size to about 390 Ω.
What interface does MCP4018T-104E/LT use, and can multiple units share the same I2C bus?
MCP4018T-104E/LT uses a 2-wire I2C serial interface with a fixed I2C address. Because the address is fixed, only one MCP4018T-104E/LT can reside on a given I2C bus at a time; designs requiring multiple independent digital pots should use MCP4017 or MCP4019 variants which offer 3 address pin selections, enabling up to 3 devices on the same 2-wire bus.
What supply voltage range does MCP4018T-104E/LT require, and is it compatible with 3.3 V microcontroller I2C lines?
The device operates from 2.7 V to 5.5 V, which fully covers 3.3 V and 5 V system rails. I2C SDA and SCL logic thresholds scale with VDD, so a 3.3 V MCU with standard open-drain I2C pull-ups can drive the bus directly without level shifters when both the MCU and MCP4018T-104E/LT share the same 3.3 V supply.
What procurement lead time should buyers plan for when ordering MCP4018T-104E/LT, and what is the package type?
Microchip lists a factory lead time of 13 weeks for MCP4018T-104E/LT, which is longer than many standard analog ICs. The part ships in a 6-pin SOT-23 package on tape-and-reel, and procurement teams should maintain safety stock of at least 4 to 6 weeks of usage to absorb supply variability during constrained periods.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $0.5790 | $57.90 |
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