MCP4231-503E/SL Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4231-503E/SL is a dual-channel 7-bit digital potentiometer with 128 steps and 50 kOhm end-to-end resistance, controlled via SPI increment/decrement interface. It stores wiper position in non-volatile memory and operates from 1.8 V to 5.5 V in a SOIC-14 package. Available in stock worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- MCP4231-503E/SL Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7980(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 MCP4231-503E/SL?
- Dual independent 50 kOhm channels with 128-step 7-bit resolution controlled via SPI, enabling independent gain, offset, or volume adjustment from a host microcontroller without mechanical potentiometers
- Non-volatile wiper position memory retains last programmed resistance setting across power cycles, eliminating initialization code and ensuring repeatable calibration in production-trimmed designs
- 1.8 V to 5.5 V wide supply range with low wiper resistance supports integration into 3.3 V and 5 V analog signal chains without adding significant series resistance error
What is MCP4231-503E/SL used for?
The MCP4231-503E/SL dual digital potentiometer is used for digitally adjustable gain stages, active filter tuning, and programmable bias current setting in industrial calibration equipment and automated test systems. Its non-volatile wiper memory makes it suitable for audio volume controls, LCD brightness adjustment, and sensor offset trimming that must retain settings after power-off without a host microcontroller reinitializing the device. The SPI increment/decrement interface enables integration with any microcontroller in 3.3 V or 5 V designs, including motor driver bias adjustment and DAC reference voltage scaling.
What are the specifications of MCP4231-503E/SL?
| Pbfree Code | Yes |
| Manufacturer Package Code | SOIC-14 |
| Factory Lead Time | 8Weeks |
| YTEOL | 9 |
| Bandwidth-Nom | 0.2kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.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 |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Total Resistance-Nom | 50000Ω |
| 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 MCP4231-503E/SL datasheet?
MCP4231-503E/SL Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4231-503E/SL?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many resistance steps does MCP4231-503E/SL provide and what is the step size for a 50 kOhm end-to-end resistance?
The MCP4231-503E/SL provides 128 steps with a nominal end-to-end resistance of 50 kOhm. Each step therefore represents approximately 390 Ohm of resistance change. In a voltage divider configuration with a 3.3 V reference, each step shifts the wiper output by roughly 25.8 mV, allowing fine-grained voltage programming across 128 discrete levels.
Does MCP4231-503E/SL retain its wiper position after power-off, and how does this benefit factory-calibrated products?
Yes, the device includes non-volatile memory that stores the wiper position across power cycles. In factory-calibrated sensor nodes or signal conditioning boards, this means the trimmed offset or gain setting is automatically restored at power-up without any microcontroller initialization sequence, reducing firmware complexity and eliminating the risk of shipping products with default (uncalibrated) resistance values.
What SPI interface does MCP4231-503E/SL use and how does it differ from SPI-addressable absolute-position digital pots?
The MCP4231-503E/SL uses an increment/decrement SPI control interface rather than an absolute-position write command. To set a specific wiper position, the host must either count steps from the known current position or reset to one end and increment to the target. This differs from absolute-register devices that accept a 7-bit target code in a single SPI transaction, adding a few microseconds of setup time per adjustment in dynamic systems.
What supply voltage does MCP4231-503E/SL support and what package does it come in for through-hole or SMD assembly?
The device operates from 1.8 V to 5.5 V, covering 3.3 V and 5 V system power rails. It is housed in a SOIC-14 package (JESD-30 code R-PDSO-G14) measuring 8.65 mm x 3.9 mm with 1.27 mm pitch, which is an SMD footprint suitable for reflow soldering and compatible with standard pick-and-place assembly in production volumes.
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+ | $1.2000 | $1.20 |
| 100+ | $0.8900 | $89.00 |
| 1000+ | $0.8700 | $870.00 |
| 5000+ | $0.8500 | $4250.00 |
| 5016+ | $0.8000 | $4012.80 |
| 7524+ | $0.7980 | $6004.15 |
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