{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"V30120CI-M3/P","brand":"Vishay","brandSlug":"vishay","productSlug":"V30120CI-M3-P","canonicalUrl":"https://icboms.com/vishay/V30120CI-M3-P","factsUrl":"https://icboms.com/api/mcp/products/V30120CI-M3%2FP","rawCanonicalId":null},"summary":{"shortDescription":"Vishay TMBS® Schottky rectifier, 1 Pair Common Cathode, 15A per diode, 120V Vr, 900mV Vf @ 15A, TO-220AB, Through Hole, Tube.","salesMarkdown":"## What the 15 A per diode rating means for your rail The V30120CI-M3/P: Each of the two common-cathode diodes is rated 15 A average rectified current (Io). In a center-tap full-wave configuration the pair shares the load, so the total DC output can reach 30 A before the junction hits thermal limits — but the TO-220AB package's thermal resistance to ambient is the real constraint. At 15 A per die the forward drop is 900 mV typ, so conduction loss per diode is 13.5 W; that needs a heatsink with a thermal path below about 3 °C/W to keep Tj under 150 °C in a 50 °C ambient. ## 120 V Vr and the leakage trade-off Reverse voltage rating is 120 V maximum. At that voltage reverse leakage is 500 µA — typical for a trench Schottky of this die size. That leakage doubles roughly every 10 °C rise above 25 °C, so at 125 °C junction the leakage approaches 32 mA per diode and adds ~4 W of standby loss. For a power supply that spends most of its life in light-load or standby, the leakage at high temperature can dominate the no-load input power budget. ## Common-cathode layout — one heatsink, two diodes The 1 Pair Common Cathode configuration shares the center tab (pin 2) as the common output. That means a single TO-220AB tab electrically connects both cathodes — heatsink isolation is mandatory unless the heatsink itself is the output rail. The anode pins (1 and 3) are the individual inputs. This package mates into a standard TO-220 footprint; the 2.54 mm pin pitch and 0.9 mm pin diameter match any through-hole PCB layout for a 30 A bus. ## RoHS3 — no exemptions to track ROHS3 Compliant means all six restricted substances are below the threshold — no phthalate or lead exemptions that would expire or require a PCN.","metaTitle":"Vishay V30120CI-M3/P Schottky, 15A 120V, TO-220AB","metaDescription":"Vishay V30120CI-M3/P TMBS® Schottky rectifier, 15A per diode, 120V Vr, TO-220AB, RoHS3. Active production — quoted to order.","metaKeywords":null},"attributes":{"series":"TMBS®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"TMBS®","Package":"Tube","Diode Type":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-220-3","lifecycle_stage":"eol_hot","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220AB","Current - Reverse Leakage @ Vr":"500 µA @ 120 V","Voltage - DC Reverse (Vr) (Max)":"120 V","Operating Temperature - Junction":"-40°C ~ 150°C","Voltage - Forward (Vf) (Max) @ If":"900 mV @ 15 A","Current - Average Rectified (Io) (per Diode)":"15A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.45","priceTiers":[{"qty":1,"price":"$1.45000","currency":"USD"},{"qty":10,"price":"$1.29600","currency":"USD"},{"qty":100,"price":"$1.01010","currency":"USD"},{"qty":500,"price":"$0.83440","currency":"USD"},{"qty":1000,"price":"$0.68360","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/444901a5f4f95e8e0b819e6d82fa9368.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/V30120CI-M3%2FP/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative in the Vishay TMBS® family?","answer":"Within the same TMBS® trench Schottky series, Vishay offers multiple voltage and current variants in the TO-220AB common-cathode package — for example a 45 V or 60 V version with lower Vf if the voltage margin allows, or a higher-current 20 A per diode variant if the thermal budget supports it. The pinout (common cathode on tab, anodes on pins 1 and 3) is identical across the family; the deciding factor is the reverse voltage margin and the forward drop trade-off at the target load current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/vishay/V30120CI-M3-P","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/vishay/V30120CI-M3-P 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}}