MCP4242-103E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP4242-103E/UN by Microchip is a dual-channel, 129-position, 10 kΩ digital potentiometer with SPI interface in a 10-pin MSOP package. It provides non-volatile wiper position storage and operates from 1.8 V to 5.5 V, enabling compact adjustable bias and gain control circuits. Available worldwide with fast shipping from authorized distributors.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4242-103E/UN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9370(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 MCP4242-103E/UN?
- Dual-channel 10 kΩ digital potentiometer with 129 wiper positions for fine 78 Ω step resolution
- Non-volatile wiper position storage in EEPROM retains settings through power cycles without host intervention
- Wide supply range from 1.8 V to 5.5 V enables use in battery-powered and mixed-voltage systems
What is MCP4242-103E/UN used for?
MCP4242-103E/UN is used in audio equipment for digitally controlled volume and tone adjustment, replacing mechanical potentiometers with SPI-programmable resistance in 10 kΩ increments. In precision industrial sensors, the dual-channel capability enables simultaneous offset and gain trimming of analog front-ends. The compact 10-pin MSOP footprint is ideal for space-constrained PCBs requiring two independent resistance channels on a single device.
What are the specifications of MCP4242-103E/UN?
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 6Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 1kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| 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 | 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 | 0.5mm |
| Terminal Position | DUAL |
| Total Resistance-Nom | 10000Ω |
| 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 | Thailand |
Where can I find the MCP4242-103E/UN datasheet?
MCP4242-103E/UN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4242-103E/UN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does the MCP4242-103E/UN support, and what resistance step does each position represent?
The MCP4242-103E/UN provides 129 wiper positions across a 10 kΩ end-to-end resistance, giving approximately 78 Ω per step. This resolution is fine enough for audio volume control and analog bias trimming applications where smooth adjustment without audible stepping is required, while the non-volatile EEPROM preserves the last wiper setting through power cycles.
What supply voltage range does MCP4242-103E/UN support, and how does that affect use in battery-operated designs?
The MCP4242-103E/UN operates from 1.8 V to 5.5 V, covering single-cell LiPo down to two AA alkaline battery levels. This wide range lets designers integrate the dual digital potentiometer into handheld instruments and IoT sensors without a dedicated 5 V rail, while the 10-pin MSOP package occupies minimal PCB area on compact board layouts.
How does the MCP4242-103E/UN dual-channel design reduce BOM cost compared to using two single-channel potentiometers?
Using MCP4242-103E/UN consolidates 2 independent 10 kΩ SPI digital potentiometers into one 10-pin MSOP device sharing a single SPI bus, reducing component count by at least 1 IC and saving approximately 30 mm² of PCB area versus two separate MSOP-8 packages. Both channels support up to 1 kHz bandwidth, suited for audio and low-frequency control loops.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.4000 | $1.40 |
| 100+ | $1.0600 | $106.00 |
| 1000+ | $1.0200 | $1020.00 |
| 5000+ | $0.9480 | $4740.00 |
| 7500+ | $0.9390 | $7042.50 |
| 10000+ | $0.9370 | $9370.00 |
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