MCP4632-503E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP4632-503E/UN is a dual-channel I2C digital potentiometer from Microchip, offering 128 steps and 50 kΩ end-to-end resistance in a 10-pin MSOP package. Available in stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4632-503E/UN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7930(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
- 128-step resolution providing fine-grained resistance control in 50 kΩ, 10 kΩ, and 5 kΩ variants
- 2-wire I2C serial interface simplifying firmware integration with any microcontroller in just 2 GPIO pins
- Dual independent wiper channels enabling simultaneous adjustment of 2 signal paths in a single device
- Compact 10-pin MSOP package minimizing PCB area for portable and embedded system designs
Applications
The MCP4632-503E/UN enables software-controlled gain and offset adjustment in op-amp feedback networks, audio volume control circuits, and programmable filter stages where mechanical potentiometers are impractical. Its dual-channel design allows independent control of two signal paths such as left and right audio channels or two separate sensor calibration trims simultaneously over I2C. Industrial process controllers, medical equipment, and automated test fixtures use this device to digitally program analog circuit parameters during runtime without physical intervention.
Specifications
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Additional Feature | THE RESISTOR ARRAY VALUES ARE 5000 OHM,10000 OHM, 50000 OHM |
| Bandwidth-Nom | 2kHz |
| Control Interface | 2-WIRE SERIAL |
| 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 |
| 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 | 3V |
| 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 |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Total Resistance-Nom | 100000Ω |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| 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
How many discrete resistance steps does the MCP4632-503E/UN provide, and what is the step size at 50 kΩ full-scale?
The MCP4632-503E/UN provides 128 steps over the full 50 kΩ end-to-end resistance, yielding a step size of approximately 390 Ω per increment. This resolution enables fine-grained gain or offset adjustment in analog circuits, supporting applications where 0.78% of full-scale trimming accuracy is sufficient.
What interface protocol does the MCP4632-503E/UN use, and how does this simplify embedded system integration?
The device uses a 2-wire I2C serial interface, requiring only SCL and SDA connections to any standard microcontroller I2C peripheral. The I2C bus supports multiple devices at speeds up to 400 kHz (fast mode), allowing the digital potentiometer to share the same bus with temperature sensors, EEPROM, and other peripherals without dedicating additional GPIO pins.
For an op-amp gain-control circuit, how does replacing a mechanical 50 kΩ potentiometer with the MCP4632-503E/UN improve system reliability?
Mechanical potentiometers have wear-out mechanisms typically rated for 10,000 to 100,000 cycles and are sensitive to vibration and humidity. The MCP4632-503E/UN has no moving parts, rated for over 1,000,000 wiper write cycles to non-volatile memory, and operates reliably across -40°C to +125°C, dramatically improving long-term reliability in industrial or automotive-adjacent designs.
Can the MCP4632-503E/UN retain its wiper position after power loss, and what is the significance of volatile versus non-volatile storage?
The MCP4632-503E/UN includes non-volatile EEPROM storage for the wiper position, retaining the last programmed resistance setting after power is removed. This means at power-up the circuit returns to its previously configured gain or offset without any microcontroller initialization, which is critical for systems that may restart unexpectedly and must resume normal operation within milliseconds of power restoration.
Related Guides
1206 100 uF MLCC Design Guide for Compact Bulk Decoupling
Design guidance for applying CL31A107MQHNNNE and related 1206 MLCCs in compact bulk decoupling networks.
Jul 3, 2026
0402 10 nF MLCC Design Guide for High-Speed Decoupling
Practical design guidance for using CL05B103KB5NNNC and related 0402 MLCCs in high-speed decoupling networks.
Jul 3, 2026
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2000 | $1.20 |
| 100+ | $0.8900 | $89.00 |
| 1000+ | $0.8700 | $870.00 |
| 5000+ | $0.8000 | $4000.00 |
| 7500+ | $0.7980 | $5985.00 |
| 10000+ | $0.7930 | $7930.00 |
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.”