{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MCP4151-503E/MF","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MCP4151-503E-MF","canonicalUrl":"https://icboms.com/microchip/MCP4151-503E-MF","factsUrl":"https://icboms.com/api/mcp/products/MCP4151-503E%2FMF","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology MCP4151-503E/MF, digital potentiometer, 50 kOhm resistance, 257 taps, SPI interface, linear taper, 8-VDFN exposed pad package, industrial temperature range -40°C to 125°C.","salesMarkdown":"## 50 kOhm digital pot with 257-tap resolution The MCP4151-503E/MF is a single-channel, 50 kOhm digital potentiometer with 257 wiper taps, controlled via an SPI interface. The linear taper and ±20% end-to-end tolerance define the voltage divider ratio accuracy — the 257 taps give a step size of roughly 195 Ohms per tap, sufficient for trimming or calibration loops where a mechanical trimmer is undesirable. ## Supply voltage and temperature grade Operating from 1.8V to 5.5V, this part bridges 3.3V and 5V logic rails without a level shifter — a common BOM simplification in mixed-voltage designs. The -40°C to 125°C industrial temperature range suits outdoor telecom, automotive cabin, and factory-floor enclosures where the ambient exceeds commercial limits. The wiper resistance is 75 Ohms typical, which adds a small series resistance that must be accounted for in the voltage-divider output impedance. The 150 ppm/°C temperature coefficient means the 50 kOhm value drifts about 7.5 Ohms per degree — negligible for most trimming applications but worth noting if the divider sets a precision reference. ## Active production, ROHS3, and 8-DFN package Microchip lists the MCP4151-503E/MF as Active with ROHS3 compliance. The 8-VDFN exposed pad package — supplier device package 8-DFN 3x3 mm — requires a thermal pad on the PCB for heat sinking; the exposed paddle must be soldered to a copper plane to keep junction temperature within limits at high wiper current.","metaTitle":"MCP4151-503E/MF Digital Potentiometer 50kOhm 257-Tap SPI -","metaDescription":"MCP4151-503E/MF digital pot: 50kOhm, 257 taps, SPI interface, ±20% tolerance, -40°C to 125°C, 8-DFN package. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"Taper":"Linear","Package":"Tube","Interface":"SPI","Tolerance":"±20%","Memory Type":"Volatile","Configuration":"Potentiometer","Mounting Type":"Surface Mount","Number of Taps":"257","Package / Case":"8-VDFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"1.8V ~ 5.5V","Resistance (Ohms)":"50k","Number of Circuits":"1","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"8-DFN (3x3)","Temperature Coefficient (Typ)":"150ppm/°C","Resistance - Wiper (Ohms) (Typ)":"75"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.21","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.21000","currency":"USD"},{"qty":25,"price":"$1.00720","currency":"USD"},{"qty":100,"price":"$0.93000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fd960289345abea462f036aa5ea3a17a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is MCP4151-503E/MF RoHS compliant?","answer":"Yes, the MCP4151-503E/MF is ROHS3 compliant."},{"question":"What is the taper of MCP4151-503E/MF?","answer":"The taper is Linear, meaning the wiper resistance changes uniformly with tap position."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MCP4151-503E-MF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MCP4151-503E-MF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T20:06:08.012Z","lastPublished":"2026-07-17T20:06:08.012Z","indexable":true}}