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EMB9

Public Made by Adom

by adom

Changjing Digital Transistors, SOT-563. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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EMB9

Changjing · Digital Transistors · SOT-563

EMB9 from Changjing, in a SOT-563. 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 PNP digital transistor Tr1 (DTA114Y with built-in R1/R2); Vi -40 to +6 V, VCC max -50 V.
2 B1 input Input (base via built-in resistor R1, 7 to 13 kΩ) of Tr1; input voltage range -40 to +6 V, Vi(on) max -1.4 V.
3 C2 passive Collector (output) of PNP digital transistor Tr2; output current max -100 mA, VCC max -50 V.
4 E2 passive Emitter of PNP digital transistor Tr2 (DTA114Y with built-in R1/R2); the two transistor elements are independent.
5 B2 input Input (base via built-in resistor R1, 7 to 13 kΩ) of Tr2; input voltage range -40 to +6 V, Vi(on) max -1.4 V.
6 C1 passive Collector (output) of PNP digital transistor Tr1; output current max -100 mA, VCC max -50 V.

Key specifications

Parameter Value
Manufacturer Changjing
Package SOT-563
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
Input turn-on voltage Vi(on) -1.4 V VO=-0.3V, IO=-1mA 1
Input cut-off voltage Vi(off) -0.3 V VCC=-5V, IO=-100µA 1
Output voltage VO(on) -0.3 V IO=-5mA, Ii=-0.25 mA 1
Input cut-off current Ii -0.88 mA Vi =-5V 1
Output cut-off current IO(off) -0.5 µA VCC=-50V, Vi=0 1
DC current gain Gi 68 VO =-5V, IO=-5mA 1
Input resistance R1 7 13 KΩ 1
Resistance ratio R2/R1 3.7 5.7 1
Supply voltage VCC -50 V 1
Output current IC(MAX) -100 mA 1
Input voltage Vi -40 6 V 1
Power dissipation PD 150 mW 1
Operation junction and storage temperature range TJ,Tstg -55 150 ℃ 1
Transition frequency fT 250 MHz VO =-10V, IO=5mA, f =100MHz 1

CAD (KiCad official)

  • Symbol: EMB9
  • Footprint: Package_TO_SOT_SMD:SOT-563
  • 3D model: SOT-563 (KiCad packages3D, STEP)
  • 3D model files: emb9-etched.step / emb9-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); emb9.step / emb9.glb are the bare package body.

Provenance

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

  • Datasheet: Changjing datasheet (3 pp, sha256 78a725cc0e61f030, 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