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.
Related Guides
LM34966QPWPRQ1 Converter Selection and Procurement Guide
Select LM34966QPWPRQ1 and compare four power-management paths using topology, compatibility, qualification, and procurement checks.
Oct 27, 2026
ERJ-2RKF49R9X Design Guide for PCB Validation
Validate a 49.9 ohm resistor position with power calculations, termination topology, thermal checks, and controlled PCB measurements.
Oct 27, 2026
LM34966QPWPRQ1 Design Guide for SEPIC Power Supplies
Design an LM34966QPWPRQ1 SEPIC supply with practical current, voltage, magnetic, thermal, and validation checks.
Oct 26, 2026
NSI50350AST3G Selection Guide: Package, Current and Procurement Fit
Select NSI50350AST3G and screen four NSI alternatives by current, package, thermal limits, compliance evidence, and traceable supply.
Oct 26, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit