component
UMG3N
Public Made by Adomby adom
Changjing Digital Transistors, SOT-353. Pinout cross-checked by two models against the datasheet, 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
markdownUMG3N
Changjing · Digital Transistors · SOT-353
UMG3N from Changjing, in a SOT-353. 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 | B1 | input | Base of transistor 1 (NPN, DTC143T) through built-in 4.7 kΩ input resistor R1 (3.29-6.11 kΩ); VEBO max 5 V. |
| 2 | E | passive | Common emitter of both transistors (the schematic shows the two emitters joined at this pin); IC max 100 mA per transistor. |
| 3 | B2 | input | Base of transistor 2 (NPN, DTC143T) through built-in 4.7 kΩ input resistor R1 (3.29-6.11 kΩ); VEBO max 5 V. |
| 4 | C2 | passive | Collector of transistor 2; VCEO 50 V max, VCBO 50 V max, IC 100 mA max continuous. |
| 5 | C1 | passive | Collector of transistor 1; VCEO 50 V max, VCBO 50 V max, IC 100 mA max continuous. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-353 |
| Category | Transistors/Thyristors |
| Pins | 5 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input resistor | R1 | 3.29 | 4.7 | 6.11 | KΩ | 1 | |
| DC current gain | hFE | 100 | 600 | VCE=5V,IC=1mA | 1 | ||
| Collector-emitter saturation voltage | VCE(sat) | 0.3 | V | IC=5mA,IB=0.25mA | 1 | ||
| Collector-base breakdown voltage | V(BR)CBO | 50 | V | IC=50μA,IE=0 | 1 | ||
| Collector-emitter breakdown voltage | V(BR)CEO | 50 | V | IC=1mA,IB=0 | 1 | ||
| Emitter-base breakdown voltage | V(BR)EBO | 5 | V | IE=50μA,IC=0 | 1 | ||
| Collector cut-off current | ICBO | 0.5 | μA | VCB=50V,IE=0 | 1 | ||
| Emitter cut-off current | IEBO | 0.5 | μA | VEB=4V,IC=0 | 1 | ||
| Transition frequency | fT | 250 | MHz | VCE=10V,IE=-5mA, f=100MHz | 1 | ||
| Collector-base voltage | VCBO | 50 | V | 1 | |||
| Collector-emitter voltage | VCEO | 50 | V | 1 | |||
| Emitter-base voltage | VEBO | 5 | V | 1 | |||
| Collector current, continuous | IC | 100 | mA | 1 | |||
| Collector dissipation | PC | 150 | mW | 1 | |||
| Operation junction and storage temperature range | TJ,Tstg | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
UMG3N - Footprint:
Package_TO_SOT_SMD:SOT-353_SC-70-5 - 3D model: SOT-353 (KiCad packages3D, STEP)
- 3D model files:
umg3n-etched.step/umg3n-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);umg3n.step/umg3n.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (4 pp, sha256
acd9a9a171fb204b, retrieved 2026-10-17, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+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).