MCP4661-103E/ST Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP4661-103E/ST is a dual-channel 10 kΩ digital potentiometer with 257 wiper positions and I2C interface from Microchip, featuring non-volatile memory. It is ideal for precision calibration, gain control, and bias adjustment in compact TSSOP-14 form.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4661-103E/ST Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel 10 kΩ digital potentiometer with 257 wiper positions for fine resolution
- Non-volatile memory retains wiper position through power cycles without host intervention
- I2C control interface with increment/decrement commands for easy software integration
- TSSOP-14 package for space-constrained PCB designs
- RoHS compliant and REACH compliant for green manufacturing requirements
Applications
The MCP4661-103E/ST is well-suited for electronic systems requiring programmable resistance adjustment, such as LCD contrast control, audio volume tuning, and sensor calibration circuits. Its non-volatile memory makes it an excellent choice for factory calibration routines where settings must be retained after power-down without an external EEPROM. Industrial process control boards and communication equipment also leverage this dual-channel device for dynamic gain and offset trimming.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | TSSOP-14 |
| Reach Compliance Code | Compliant |
| Factory Lead Time | 7Weeks |
| YTEOL | 8 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 1kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| 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 | 5.5V |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.6mA |
| Supply Voltage-Nom | 2.7V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| 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 | Philippines, Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many wiper positions does the MCP4661-103E/ST support, and how does that affect resolution?
The MCP4661-103E/ST provides 257 wiper positions across a 10 kΩ end-to-end resistance, giving a step size of approximately 39 Ω per step. This fine resolution suits precision calibration tasks such as ADC reference trimming, sensor bridge balancing, and gain adjustment where coarse steps would introduce unacceptable error.
Does the MCP4661-103E/ST retain its wiper setting after power is removed, and how is this achieved?
Yes, the MCP4661-103E/ST includes integrated non-volatile memory that stores the wiper position for both channels when written, so the device restores the last programmed resistance after each power cycle. This eliminates the need for an external EEPROM or host microcontroller intervention at startup, saving at least 2 additional components in typical designs.
For a compact audio volume-control circuit, which package and interface of the MCP4661-103E/ST are most relevant?
The MCP4661-103E/ST comes in a TSSOP-14 package measuring roughly 5 mm × 4.4 mm, which fits tightly on space-constrained audio PCBs. Its I2C interface uses only 2 wires, leaving more GPIO pins free on the host MCU and simplifying routing compared to SPI alternatives that require 3 or 4 signal lines.
Related Guides
CL32B226KAJNNNE 22µF 25V MLCC Application Note: Bulk Decoupling and Bypass Design
Design guide for CL32B226KAJNNNE: DC-bias derating at 25V, 1210 flex-crack prevention, bulk-decoupling placement, and ripple/transient response for switching regulator rails.
Jun 14, 2026
CL05B104KO5NNNC High-Frequency Decoupling: PDN Design Guide for 0402 100nF MLCC
How to design a power distribution network with the CL05B104KO5NNNC 100nF 16V X7R 0402 MLCC: DC-bias derating, ESL, SRF, placement, and multi-tier PDN strategy.
Jun 14, 2026
AMC1202DWVR Reinforced Isolated Amplifier Selection Guide: AMC1202, AMC1302, AMC3302, AMC1311 Compared
How to choose the right TI AMCxxxx reinforced isolated amplifier for motor drives, BMS, and SiC inverters — covering input range, DC/DC integration, CMTI, and precision.
Jun 13, 2026
How to Choose a Capacitance-to-Digital Converter: AD774x Selection Guide
Compare the AD7745, AD7746, and AD7747 CDC ICs. Learn how to select the right Analog Devices capacitance-to-digital converter for your precision sensing design.
Jun 13, 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
PIC16LF88-I/SS
Small Outline Packages
Integrated Circuit
25AA02E48-I/SN
Small Outline Packages
Integrated Circuit
PIC18F1220-I/SO
Small Outline Packages
Integrated Circuit
MIC5319-1.8YD5-TR
SOT23 (5-Pin)
Integrated Circuit
dsPIC33FJ256GP710A-I/PT
Quad Flat Packages
Integrated Circuit
BM70BLES1FC2-0B03AA
Other
Integrated Circuit
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.”