{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MCP4532T-503E/MS","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MCP4532T-503E-MS","canonicalUrl":"https://icboms.com/microchip/MCP4532T-503E-MS","factsUrl":"https://icboms.com/api/mcp/products/MCP4532T-503E%2FMS","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology MCP4532T-503E/MS digital potentiometer, 50 kΩ, 129 taps, I²C interface, linear taper, volatile memory, 8-MSOP package.","salesMarkdown":"## 50 kΩ, 129 taps — where the resolution matters The MCP4532T-503E/MS is a single-channel digital rheostat (two-terminal variable resistor) with a 50 kΩ end-to-end resistance and 129 wiper taps. That works out to about 390 Ω per step — fine enough for precision bias trimming or volume control where a 64-tap part would leave a noticeable gap between adjacent settings. The linear taper means the resistance changes uniformly with tap position; no pseudo-log curve baked in. If you need a log response for audio, you compensate in the host firmware or pick a different taper variant in the MCP45XX family. ## I²C bus with selectable address — stacking on the same two wires Communication runs over a standard I²C interface. The selectable-address feature lets you put multiple MCP4532 devices on the same bus without collision — each one gets a unique address via the address pin, so a single 2-wire bus can serve several trim pots or calibration points. The wiper resistance is 75 Ω typical — low enough that the voltage drop across the wiper is negligible in most signal-level circuits, but check it if you are switching currents above a few mA.","metaTitle":"MCP4532T-503E/MS 50kΩ 129-Tap I²C Digital Pot, MSOP-8","metaDescription":"Microchip MCP4532T-503E/MS digital potentiometer, 50kΩ, 129 taps, I²C, linear taper, -40 to +125°C, 8-MSOP. Active production, RoHS3. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Taper":"Linear","Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Selectable Address","Interface":"I²C","Tolerance":"±20%","Memory Type":"Volatile","Configuration":"Rheostat","Mounting Type":"Surface Mount","Number of Taps":"129","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","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-MSOP","Temperature Coefficient (Typ)":"150ppm/°C","Resistance - Wiper (Ohms) (Typ)":"75"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.89","priceTiers":[{"qty":1,"price":"$0.89000","currency":"USD"},{"qty":25,"price":"$0.74200","currency":"USD"},{"qty":100,"price":"$0.68900","currency":"USD"},{"qty":2500,"price":"$0.68900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/53a6dc171a391bd352593a49c9b87689.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MCP4532T-503E%2FMS/alternatives.json"},"ai":{"faq":[{"question":"Will MCP4532T-503E/MS drop into a board that was specified around MCP4014T-103E/OT without rewiring?","answer":"No — the two parts are not pin-compatible. The MCP4014T-103E/OT comes in a 5-pin SOT-23 package, while the MCP4532T-503E/MS is an 8-pin MSOP. The interface also differs: the MCP4014 uses an up/down control (U/D, CS), whereas the MCP4532 uses I²C. A board spin is required to swap between them."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MCP4532T-503E-MS","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MCP4532T-503E-MS when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}