component
MMUN5311DW
Public Made by Adomby adom
YFW Digital Transistors, SOT-363. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownMMUN5311DW
YFW · Digital Transistors · SOT-363
MMUN5311DW from YFW, in a SOT-363. 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 | E2 | passive | Emitter of Q2 (NPN), shown in the schematic connected to the base through R2 (10 k for MMUN5311DW). |
| 2 | B2 | input | Base of Q2 (NPN), entering through series resistor R1 (10 k for MMUN5311DW). |
| 3 | C1 | passive | Collector of Q1 (PNP), shown at the bottom of the schematic; Q1 Vceo and Vcbo are rated 50 V and Ic 100 mA. |
| 4 | E1 | passive | Emitter of Q1 (PNP), shown at the top of the schematic, connected to the base through R2 (10 k). |
| 5 | B1 | input | Base of Q1 (PNP), entering through series resistor R1 (10 k for MMUN5311DW). |
| 6 | C2 | passive | Collector of Q2 (NPN), shown at the top of the schematic; Vceo and Vcbo are rated 50 V and Ic 100 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | YFW |
| Package | SOT-363 |
| Category | Transistors/Thyristors |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
MMUN5311DW - Footprint:
Package_TO_SOT_SMD:SOT-363_SC-70-6 - 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files:
mmun5311dw-etched.step/mmun5311dw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmun5311dw.step/mmun5311dw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: YFW datasheet (7 pp, sha256
db6d54177423bfe1, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-opus-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).