component
MMUN2211LT1G
Public Unreviewedby Ray
onsemi Digital Transistors, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMMUN2211LT1G
onsemi · Digital Transistors · SOT-23
MMUN2211LT1G from onsemi, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | BASE | input | Input (base) pin. Drives the internal 10 kΩ series base resistor R1; the far end of R1 goes to the transistor base and to the 10 kΩ base-emitter resistor R2. Input forward voltage rating VIN(fwd) = 40 V; input reverse voltage rating VIN(rev) = 10 V. Input-on threshold Vi(on) ≥ 2.5 V (typ 1.8 V). |
| 2 | EMITTER | passive | Emitter (ground) pin of the internal NPN transistor. Also the return for the internal base-emitter resistor R2 (10 kΩ). Typically tied to circuit ground in low-side switch use. |
| 3 | COLLECTOR | output | Collector (output) pin of the internal NPN transistor. VCBO = 50 V, VCEO = 50 V, IC(continuous) = 100 mA. VCE(sat) ≤ 0.25 V at IC = 10 mA / IB = 0.3 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | SOT-23 |
| Category | Transistors/Thyristors |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
MMUN2211LT1GMMUN2211LT1GSMMUN2211LT1GMMUN2211LT3GMMUN2211LT1GSMMUN2211LT3GMMUN2211T1GMMUN2211LT1GSMUN2211T1GMMUN2211T3GMMUN2211LT1GSMUN2211T3GMMUN2211LT1GMUN5211T1GMMUN2211LT1GSMUN5211T1GMMUN2211LT1GSMUN5211T3GMMUN2211LT1GDTC114EET1GMMUN2211LT1GSDTC114EET1GMMUN2211LT1GDTC114EM3T5GMMUN2211LT1GNSBC114EF3T5G
CAD (KiCad official)
- Symbol:
MMUN2211LT1G - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (12 pp, sha256
98dd26b4237d3a4b, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).