component
MMUN2232LT1G
Public Made by Adomby adom
onsemi Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+39@@ -0,0 +1,39 @@+# MMUN2232LT1G++**onsemi** · Digital Transistors · SOT-23++MMUN2232LT1G from onsemi, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | BASE | input | Base is the input of the bias-resistor transistor, with a 4.7 kΩ series base resistor (R1); input forward voltage VIN(fwd) is limited to 30 Vdc and input reverse voltage VIN(rev) to 10 Vdc. |+| 2 | EMITTER | power_in | Emitter is the ground reference of the device, tied to the internal 4.7 kΩ base-emitter resistor (R2), and is labeled GROUND on the datasheet pin diagram. |+| 3 | COLLECTOR | output | Collector is the output of the transistor, rated for a collector-emitter voltage VCEO of 50 Vdc and a continuous collector current IC of 100 mAdc. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOT-23 |+| Category | Transistors/Thyristors |+| Pins | 3 |++## CAD (KiCad official)++- Symbol: `MMUN2232LT1G`+- Footprint: `Package_TO_SOT_SMD:SOT-23`+- 3D model: SOT-23 (KiCad packages3D, STEP)+- 3D model files: `mmun2232lt1g-etched.step` / `mmun2232lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmun2232lt1g.step` / `mmun2232lt1g.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588884207338180608) (13 pp, sha256 `829670ed312faf9c`, retrieved 2026-10-09, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/mmun2232lt1g-datasheet.pdf)
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The use of a BRT can reduce both system cost and board space.)+/Title (DTC143E - Digital Transistors \(BRT\) R1 = 4.7 kOhms, R2 = 4.7 kOhms)+>>+endobj+2 0 obj+<<+/Type /Pages+/Kids [6 0 R 7 0 R 8 0 R 9 0 R 10 0 R 11 0 R 12 0 R 13 0 R 14 0 R 15 0 R+16 0 R 17 0 R 18 0 R]+/Count 13+>>+endobj+3 0 obj+<<+/Length 4254+/Subtype /XML+/Type /Metadata+>>+stream +<?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>+<x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.6-c017 91.164464, 2020/06/15-10:20:05 ">+ <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">+ <rdf:Description rdf:about=""+ xmlns:pdf="http://ns.adobe.com/pdf/1.3/"+ xmlns:xmp="http://ns.adobe.com/xap/1.0/"+ xmlns:dc="http://purl.org/dc/elements/1.1/"+ xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/"+ xmlns:illustrator="http://ns.adobe.com/illustrator/1.0/">+ <pdf:Producer>Acrobat Distiller 9.0.0 (Windows)</pdf:Producer>+ <xmp:CreatorTool>BroadVision, Inc.</xmp:CreatorTool>+ <xmp:ModifyDate>2020-09-01T09:32:28+02:00</xmp:ModifyDate>+ <xmp:CreateDate>2016-10-31T01:32:08-07:00</xmp:CreateDate>+ <xmp:MetadataDate>2020-09-01T09:32:28+02:00</xmp:MetadataDate>+ <dc:format>application/pdf</dc:format>+ <dc:title>+ <rdf:Alt>+ <rdf:li xml:lang="x-default">DTC143E - Digital Transistors (BRT) R1 = 4.7 kOhms, R2 = 4.7 kOhms</rdf:li>+ </rdf:Alt>+ </dc:title>+ <dc:creator>+ <rdf:Seq>+ <rdf:li>ON Semiconductor</rdf:li>+ </rdf:Seq>+ </dc:creator>+ <dc:description>+ <rdf:Alt>+ <rdf:li xml:lang="x-default">This series of digital transistors is designed to replace a single device and its external resistor bias network. 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