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Microchip Technology MCP4131-502E/MS — Discrete Semiconductors
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RoHS Compliant · Lead-Free EIA-481 Standard
Microchip Technology / Discrete Semiconductors

Microchip MCP4131-502E/MS Digital Potentiometer, 5kOhm

MPN MCP4131-502E/MS
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Microchip MCP4131-502E/MS digital potentiometer, 5kOhm, linear taper, 129 taps, SPI interface, single channel, volatile memory, 8-MSOP package, -40°C to 125°C, ROHS3 compliant.

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[SPEC] Essential Parameters Snapshot Full Specifications (15)
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supply Voltage 1.8V ~ 5.5V

Full Technical Specifications

15 Parameters
MCP4131-502E/MS specifications
Parameter / AttributeSpecification / Value
Memory typeVolatile
MountingSurface Mount
Supply voltage1.8V ~ 5.5V
InterfaceSPI
Operating temperature-40°C ~ 125°C
TaperLinear
PackageTube
Tolerance±20%
ConfigurationPotentiometer
Number of taps129
Case8-TSSOP, 8-MSOP (0.118\", 3.00mm Width)
Resistance5k
Number of circuits1
Temperature coefficient150ppm/°C
Resistance - wiper (Ohms)75
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Technical Details & Description

5 kOhm single-channel digital pot with SPI control

The Microchip MCP4131-502E/MS is a single-channel digital potentiometer with a linear taper and a total end-to-end resistance of 5 kOhm. It provides 129 wiper tap positions controlled via an SPI interface.

The supply voltage range spans 1.8 V to 5.5 V, so the part runs directly from a 3.3 V or 5 V microcontroller rail without an extra regulator.

Package and footprint — 8-MSOP for compact board layouts

Housed in an 8-MSOP package (3.00 mm width), the MCP4131-502E/MS suits space-constrained designs.

Frequently asked questions

Is MCP4131-502E/MS compatible with a 3.3 V microcontroller?

Yes. The supply voltage range of 1.8 V to 5.5 V covers both 3.3 V and 5 V logic systems. The SPI interface operates at the same supply voltage, so a 3.3 V MCU can directly control the wiper position without level shifting.

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