MCP40D19T-104E/LT Microchip Integrated Circuit (SOT23 (5-Pin)) In Stock
Microchip MCP40D19T-104E/LT is a single-channel digital potentiometer with 100 kΩ end-to-end resistance and 128 linear positions controlled via I2C interface. It operates from a 2.7 V to 5.5 V supply in a compact 5-pin SC-70 package, making it ideal for portable and space-constrained designs requiring programmable analog adjustment.
- Manufacturer
- Microchip
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- MCP40D19T-104E/LT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3582(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
- Single-channel 100 kΩ digital potentiometer with 128 linear steps
- I2C (2-wire serial) interface for easy microcontroller integration
- Wide supply voltage range: 2.7 V to 5.5 V
- Ultra-compact 5-pin SC-70 package for space-constrained PCBs
- Volatile wiper position — no EEPROM wear, ideal for frequent updates
- Low power consumption for battery-powered portable applications
Applications
The MCP40D19T-104E/LT is widely used for programmable gain and offset adjustment in sensor signal conditioning circuits, LCD contrast tuning in portable devices, and audio volume control in consumer electronics. Its I2C interface and compact SC-70 package make it a convenient drop-in for microcontroller-based systems requiring digitally adjustable analog biasing without mechanical trimmers.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | SC70-5 |
| Factory Lead Time | 2Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.1kHz |
| Control Interface | 2-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 128 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP5/6,.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 |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.08mA |
| Supply Voltage-Nom | 2.7V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Total Resistance-Nom | 100000Ω |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many resistance steps does MCP40D19T-104E/LT provide, and what is the step resolution at 100 kΩ?
The MCP40D19T-104E/LT provides 128 linear wiper positions across a 100 kΩ end-to-end resistance, giving an approximate step resolution of 781 Ω per step, which is sufficient for fine analog trimming in sensor and gain-adjustment circuits.
Is MCP40D19T-104E/LT suitable for 5 V single-supply designs, or does it require a dual-supply rail?
The device operates from a single supply of 2.7 V to 5.5 V, covering both 3.3 V and 5 V systems without requiring a negative rail, making it directly compatible with the vast majority of microcontroller-based single-supply PCB designs.
What physical footprint does the SC-70 5-pin package demand on a PCB compared to SOIC-8 alternatives?
The 5-pin SC-70 package measures approximately 2.0 mm × 2.1 mm, significantly smaller than a standard SOIC-8 footprint at roughly 4.9 mm × 3.9 mm, making MCP40D19T-104E/LT the preferred choice when board space is under 5 mm².
Does MCP40D19T-104E/LT retain its wiper position after power is removed?
No. The MCP40D19T-104E/LT has a volatile wiper register, meaning the position resets to the factory default on each power-up. Designs that need non-volatile wiper retention should consider the MCP4551 with integrated EEPROM, which stores the last 128-step position through power cycles.
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