MCP4142-503E/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
The MCP4142-503E/P is a single-channel 50 kΩ digital potentiometer with 128-step resolution, controlled via an increment/decrement interface, and housed in an 8-pin DIP package. It provides non-volatile wiper position storage and a 0.2 kHz bandwidth, suitable for precision analog trimming and calibration in embedded designs.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4142-503E/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
- Single-channel 50 kΩ digital potentiometer with 128-step wiper resolution
- Increment/decrement control interface for simple up/down resistance adjustment
- Non-volatile memory retains wiper position after power cycling
- Bandwidth of 0.2 kHz suitable for DC and low-frequency analog trimming
- 8-pin PDIP package for easy through-hole prototyping and production assembly
- RoHS-compliant lead-free construction (JESD-609 Code e3)
Applications
MCP4142-503E/P is used in analog trimming, calibration, and gain adjustment circuits in industrial instrumentation, sensor conditioning, and audio equipment where a mechanically adjustable potentiometer is replaced with a digitally controlled equivalent. Its non-volatile wiper storage makes it ideal for set-and-forget calibration of sensor offsets or amplifier gains in field-deployed equipment. The increment/decrement interface allows a microcontroller to step the resistance up or down under firmware control without requiring a full SPI or I2C bus.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.2kHz |
| 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 | 50000Ω |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| 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
What end-to-end resistance and how many adjustment steps does MCP4142-503E/P provide?
MCP4142-503E/P has a 50 kΩ end-to-end resistance with 128 discrete wiper steps, giving a resolution of approximately 390 Ω per step. This 128-step resolution is adequate for most analog trimming and calibration applications where fine continuous adjustment is not needed but stable digital control is preferred over a mechanical potentiometer.
Does MCP4142-503E/P retain its wiper position when power is removed, and how is this useful in deployed equipment?
Yes. MCP4142-503E/P stores its wiper position in non-volatile memory, so the last programmed resistance value is restored automatically at power-up without requiring host microcontroller intervention. This is especially useful in field-calibrated sensors and amplifiers where the calibration offset must persist across power cycles.
How does the increment/decrement control interface of MCP4142-503E/P differ from SPI or I2C digital potentiometers?
MCP4142-503E/P uses a simple 2-wire increment/decrement interface instead of a full SPI or I2C bus. This minimizes the number of microcontroller pins required and simplifies firmware since only UP and DOWN pulse signals are needed to step the wiper through its 128 positions. SPI-based alternatives offer direct wiper address writing for faster positioning.
What is the lead time for MCP4142-503E/P, and is this part recommended for new designs given its YTEOL?
MCP4142-503E/P has a factory lead time of approximately 8 weeks from Microchip and carries a YTEOL of 9, indicating it remains in active production with no imminent end-of-life risk. Procurement teams can plan multi-year production schedules with reasonable confidence, though it is always advisable to confirm the current lifecycle status before committing to a design.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.1600 | $1.16 |
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