{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TIP127FP","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TIP127FP","canonicalUrl":"https://icboms.com/stmicroelectronics/TIP127FP","factsUrl":"https://icboms.com/api/mcp/products/TIP127FP","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics TIP127FP, PNP - Darlington transistor, 100 V Vceo, 5 A Ic, 2 W, TO-220-3 Full Pack, Through Hole, Tube.","salesMarkdown":"## PNP Darlington in an isolated TO-220FP tab The STMicroelectronics TIP127FP is a PNP Darlington power transistor in the TO-220 Full Pack (TO-220FP) package, where the tab is fully isolated from the die. This saves an insulating washer and mica pad in through-hole mounting, though the thermal path to a heatsink runs through the plastic body rather than a metal tab. The 100 V Vceo breakdown suits 48 V and 72 V DC bus rails common in industrial controls, motor drives, and solenoid drivers, with derating headroom for inductive flyback. The 5 A continuous collector rating is the DC limit; repetitive peak currents in a switching application should stay within the safe operating area. As a Darlington, the minimum DC current gain of 1000 at 3 A collector current and 3 V Vce means the base drive requirement is low — a microcontroller GPIO through a 1 kΩ resistor can typically saturate it. The trade-off is a saturation voltage of 4 V at 5 A, which drops about 20 W across the junction at full current — well above the 2 W package dissipation, so this part is used in switched loads with a low duty cycle or with a substantial heatsink on the TO-220FP face. The standard TO-220 TIP127 (non-FP) is a common cross-shop candidate, but the Full Pack's isolated tab is a mechanical difference — the TO-220 version needs an insulator, which changes the assembly BOM and thermal resistance.","metaTitle":"STMicroelectronics TIP127FP PNP Darlington Transistor, 100 V","metaDescription":"PNP Darlington transistor in TO-220 Full Pack, 100 V Vceo, 5 A Ic, 2 W. Datasheet-specified 1000 min hFE at 3 A.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Tube","Power - Max":"2 W","Mounting Type":"Through Hole","Package / Case":"TO-220-3 Full Pack","Product Status":"Obsolete","Transistor Type":"PNP - Darlington","lifecycle_stage":"eol_hot","Base Product Number":"TIP127","Operating Temperature":"150°C (TJ)","Frequency - Transition":"-","Supplier Device Package":"TO-220FP","Vce Saturation (Max) @ Ib, Ic":"4V @ 20mA, 5A","Current - Collector (Ic) (Max)":"5 A","Current - Collector Cutoff (Max)":"500µA","DC Current Gain (hFE) (Min) @ Ic, Vce":"1000 @ 3A, 3V","Voltage - Collector Emitter Breakdown (Max)":"100 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/548c392dd3e786d191d50504fb962597.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TIP127FP/alternatives.json"},"ai":{"faq":[{"question":"What is the equivalent of TIP127FP?","answer":"The standard TO-220 TIP127 (non-FP) is the closest functional equivalent, sharing the same 100 V, 5 A Darlington die. The key difference is the package: the TIP127FP has an isolated tab (no insulator needed), while the TIP127 requires a mica washer or thermal pad for heatsink mounting. Verify the mechanical fit before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TIP127FP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TIP127FP when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}