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Contents

README

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UMX1N

Changjing · Bipolar (BJT) · SOT-363

UMX1N from Changjing, 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 E1 passive Emitter of transistor Tr1 (NPN); VEBO max 7 V, IC max 150 mA per the datasheet ratings.
2 B1 passive Base of transistor Tr1 (NPN); VCBO 60 V, VEBO 7 V maximum.
3 C2 passive Collector of transistor Tr2 (NPN); VCEO 50 V, VCBO 60 V, IC 150 mA maximum.
4 E2 passive Emitter of transistor Tr2 (NPN); VEBO max 7 V, IC max 150 mA per the datasheet ratings.
5 B2 passive Base of transistor Tr2 (NPN); VCBO 60 V, VEBO 7 V maximum.
6 C1 passive Collector of transistor Tr1 (NPN); VCEO 50 V, VCBO 60 V, IC 150 mA maximum.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-363
Category Transistors/Thyristors
Pins 6

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Collector-base breakdown voltage V(BR)CBO 60 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 7 V IE=50μA,IC=0 1
Collector cut-off current ICBO 0.1 μA VCB=60V,IE=0 1
Emitter cut-off current IEBO 0.1 μA VEB=7V,IC=0 1
DC current gain hFE 120 560 VCE=6V,IC=1mA 1
Collector-emitter saturation voltage VCE(sat) 0.4 V IC=50mA,IB=5mA 1
Transition frequency fT 180 MHz VCE=12V,IC=2mA,f=100MHz 1
Collector output capacitance Cob 2 3.5 pF VCB=12V,IE=0,f=1MHz 1
Collector-Emitter Voltage VCEO 50 V Ta=25℃ 1
Collector-Base Voltage VCBO 60 V Ta=25℃ 1
Emitter-Base Voltage VEBO 7 V Ta=25℃ 1
Collector Current - Continuous IC 150 mA Ta=25℃ 1
Collector Power Dissipation PC 150 mW Ta=25℃ 1
Junction Temperature TJ 150 ℃ Ta=25℃ 1
Storage Temperature Tstg -55 150 ℃ Ta=25℃ 1

CAD (KiCad official)

  • Symbol: UMX1N
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: umx1n-etched.step / umx1n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); umx1n.step / umx1n.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Changjing datasheet (3 pp, sha256 b123ee9b0f09433a, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-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).

Datasheet PDF