MCP4017T-503E/LT Microchip Integrated Circuit (SOT23 (6-Pin)) In Stock
The MCP4017T-503E/LT is a single-channel I2C digital potentiometer with a 50 kΩ end-to-end resistance and 128-position resolution. It is controlled via a 2-wire I2C interface and housed in a space-saving 6-pin SC-70 package. Available from Microchip, priced competitively with in-stock availability and worldwide shipping.
- Manufacturer
- Microchip
- Package
- SOT23 (6-Pin)
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- MCP4017T-503E/LT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3685(MOQ 5)
- 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 MCP4017T-503E/LT?
- 128 wiper positions over a 50 kΩ resistance range provide fine-grained resistance steps of ~391 Ω per tap for precise gain and offset trimming
- I2C (2-wire) serial interface allows direct control from any microcontroller, eliminating mechanical trimmer adjustments in production calibration
- Ultra-compact SC-70-6 package measuring 1.25 mm × 2.0 mm minimizes PCB area usage in portable instrumentation and handheld devices
What is MCP4017T-503E/LT used for?
The MCP4017T-503E/LT is commonly used in gain-setting and offset-trimming circuits for op amps and instrumentation amplifiers where software-controlled calibration must replace mechanical trimmers. Its I2C interface allows a microcontroller to dynamically adjust signal levels in audio equalizers, LCD contrast controls, and sensor bias circuits during production testing or field calibration. The device also fits voltage reference trimming applications in data-acquisition modules where repeatable 50 kΩ resistance adjustment with 128-step resolution is required.
What are the specifications of MCP4017T-503E/LT?
| Pbfree Code | Yes |
| Factory Lead Time | 13Weeks |
| YTEOL | 0 |
| Bandwidth-Nom | 0.26kHz |
| 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 |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | 50000Ω |
| Package | SOT23 (6-Pin) |
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 MCP4017T-503E/LT datasheet?
MCP4017T-503E/LT Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4017T-503E/LT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many resistance steps does the MCP4017T-503E/LT provide and what is the resolution per step?
The MCP4017T-503E/LT offers 128 wiper positions across a 50 kΩ end-to-end resistance, giving a resolution of approximately 391 Ω per step—fine enough for trimming op amp gain with less than 1% error in most precision signal-conditioning applications.
How does the MCP4017T-503E/LT interface with a microcontroller, and what bus speed does it support?
The device uses a 2-wire I2C serial interface supporting standard-mode (100 kHz) and fast-mode (400 kHz) clock speeds, allowing any I2C-capable microcontroller to update the wiper position with a single-byte write command without dedicated SPI resources.
Why would an engineer choose the MCP4017T-503E/LT over a mechanical trimmer for production calibration of a 3.3 V sensor module?
A digital potentiometer replaces the manual trimmer adjustment step with a microcontroller-driven I2C write, enabling automated in-circuit calibration at production test. The 50 kΩ range and 128 steps give sufficient resolution for fine gain trimming, while the SC-70-6 package reduces BOM cost and eliminates the trimmer's mechanical wear-out risk over the product lifetime.
What supply voltage range does the MCP4017T-503E/LT support for 3.3 V and 5 V system designs?
The MCP4017T-503E/LT operates from 1.8 V to 5.5 V, covering both 3.3 V and 5 V logic families without level-shifting on the I2C lines—simplifying integration into mixed-voltage boards found in industrial sensors and consumer electronics.
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