MCP4142-502E/SN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4142-502E/SN is a single-channel 5 kΩ digital potentiometer with SPI increment/decrement control interface in an SOIC-8 package. Provides 128 wiper positions, 2 kHz nominal bandwidth, and non-volatile wiper memory for reliable power-cycle retention. Available in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4142-502E/SN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7070(MOQ 1)
- 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 MCP4142-502E/SN?
- Single-channel 5 kΩ digital potentiometer with 128 wiper positions controlled via SPI increment/decrement commands for precise programmable resistance
- Non-volatile wiper position memory retains the last set resistance value through power cycles, eliminating re-initialization on startup
- 2 kHz nominal bandwidth in a compact SOIC-8 package suits audio gain, contrast, and bias adjustment applications with minimal board area
What is MCP4142-502E/SN used for?
MCP4142-502E/SN is used in audio equipment, display contrast controllers, and sensor signal conditioning circuits that require digitally adjustable resistance without mechanical potentiometers. Its increment/decrement SPI interface allows microcontrollers to fine-tune gain stages, bias voltages, and filter cutoff frequencies dynamically. The non-volatile wiper memory makes it especially valuable in industrial calibration systems and power supplies where resistance settings must persist across power cycles.
What are the specifications of MCP4142-502E/SN?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Total Resistance-Nom | 5000Ω |
| Package | Small Outline Packages |
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 | Mainland China, Thailand |
Where can I find the MCP4142-502E/SN datasheet?
MCP4142-502E/SN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4142-502E/SN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does MCP4142-502E/SN offer and what is the end-to-end resistance?
MCP4142-502E/SN provides 128 wiper positions across a 5 kΩ end-to-end resistance, giving approximately 39 Ω per step. This resolution is sufficient for fine-grained gain and bias trimming in audio amplifiers, sensor interfaces, and power management circuits.
Does MCP4142-502E/SN retain its wiper setting after power is removed?
Yes, MCP4142-502E/SN uses non-volatile memory to store the wiper position, so the 5 kΩ digital potentiometer restores its last programmed resistance value after power cycling without requiring the host microcontroller to reinitialize it. This simplifies firmware in industrial calibration and set-and-forget bias applications.
What SPI control scheme does MCP4142-502E/SN use compared to absolute-position digital potentiometers?
MCP4142-502E/SN uses an increment/decrement SPI control interface, meaning the host sends UP or DOWN commands to move the wiper one step at a time rather than writing an absolute 7-bit value. This suits knob-emulation or push-button controlled applications but requires step-counting firmware versus direct-register devices like MCP4162.
In which audio and display applications is MCP4142-502E/SN commonly deployed?
MCP4142-502E/SN is common in LCD contrast adjustment circuits, headphone volume controls, and programmable gain amplifiers where the 2 kHz bandwidth and 5 kΩ range are well-matched. Its SOIC-8 footprint and SPI interface also make it popular in portable medical devices and industrial HMI panels requiring software-driven trimming of 0 V to 5 V analog control signals.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.0700 | $1.07 |
| 100+ | $0.8100 | $81.00 |
| 1000+ | $0.7900 | $790.00 |
| 5000+ | $0.7140 | $3570.00 |
| 7500+ | $0.7120 | $5340.00 |
| 10000+ | $0.7070 | $7070.00 |
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