MCP4142-502E/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
The MCP4142-502E/P is a single-channel digital potentiometer with 5 kΩ end-to-end resistance, SPI-compatible increment/decrement interface, and 128-step resolution in a PDIP-8 package. It enables non-volatile resistance adjustment without mechanical contacts for reliable long-term operation. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4142-502E/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7620(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-step resolution digital potentiometer with 5 kΩ end-to-end resistance for precise, repeatable analog adjustment
- SPI-compatible increment/decrement control interface with 2 kHz bandwidth enables easy microcontroller integration
- Non-volatile wiper position storage retains settings through power cycles without external EEPROM
Applications
The MCP4142-502E/P suits audio volume control, LCD contrast adjustment, and sensor calibration circuits where mechanical potentiometers would wear out or occupy too much board space. Its SPI-based increment/decrement interface integrates cleanly with microcontrollers in industrial control panels and consumer electronics. The PDIP-8 package also makes it convenient for prototyping and through-hole production builds requiring digitally programmable resistance.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5V |
| Supply Current-Max | 1mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Total Resistance-Nom | 5000Ω |
| Package | Dual-In-Line Packages |
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
What is the end-to-end resistance and resolution of the MCP4142-502E/P digital potentiometer?
The MCP4142-502E/P provides a 5 kΩ end-to-end resistance with 128 wiper steps, giving approximately 39 Ω per step. This fine resolution supports precise analog adjustments in audio volume control, LCD contrast tuning, and sensor calibration, all controllable through the SPI-compatible increment/decrement interface without replacing hardware components.
Which microcontroller interface does MCP4142-502E/P use and what bandwidth does it support?
The MCP4142-502E/P uses an SPI-compatible 2-wire increment/decrement control interface with a nominal bandwidth of 2 kHz. This makes it straightforward to connect to any MCU with an SPI peripheral, enabling software-controlled resistance changes in real time for applications such as programmable gain amplifiers, tone controls, and closed-loop calibration loops.
When is the MCP4142-502E/P a better choice than a mechanical potentiometer for industrial designs?
The MCP4142-502E/P eliminates mechanical wear by using solid-state wiper contacts rated for millions of adjustment cycles, while its non-volatile memory retains the 128-step wiper position across power cycles. For industrial panel controls or sensor calibration fixtures operating across a wide temperature range, this reliability advantage outweighs the slightly higher unit cost versus a standard 5 kΩ mechanical trimmer.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.1600 | $1.16 |
| 100+ | $0.8700 | $87.00 |
| 1000+ | $0.8400 | $840.00 |
| 5000+ | $0.8300 | $4150.00 |
| 5040+ | $0.7640 | $3850.56 |
| 7500+ | $0.7620 | $5715.00 |
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