component
EMH1
Public Made by Adomby adom
Changjing Digital Transistors, SOT-563. 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
markdownEMH1
Changjing · Digital Transistors · SOT-563
EMH1 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 | power_in | Emitter (GND) of the first built-in-resistor NPN transistor Tr1, per the SOT-563 pin diagram. |
| 2 | IN1 | input | Input (base through built-in R1 22kΩ typ, R2/R1 ratio 1) of Tr1, with VI(off) min 0.5V and VI(on) max 3V and VIN rated -10 to 40V. |
| 3 | OUT2 | output | Collector output of the second transistor Tr2, rated IO 30mA and VCC 50V max. |
| 4 | E2 | power_in | Emitter (GND) of the second built-in-resistor NPN transistor Tr2, per the SOT-563 pin diagram. |
| 5 | IN2 | input | Input (base through built-in R1 22kΩ typ, R2/R1 ratio 1) of Tr2, with VI(off) min 0.5V and VI(on) max 3V and VIN rated -10 to 40V. |
| 6 | OUT1 | output | Collector output of the first transistor Tr1, rated IO 30mA and VCC 50V max. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Changjing |
| Package | SOT-563 |
| Category | Triode/MOS Tube/Transistor |
| 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 voltage (off) | VI(off) | 0.5 | V | VCC=5V, IO=100μA | 1 | ||
| Input voltage (on) | VI(on) | 3 | V | VO=0.2V, IO=5mA | 1 | ||
| Output voltage | VO(on) | 0.1 | 0.3 | V | IO/II=10mA/0.5mA | 1 | |
| Input current | II | 0.36 | mA | VI=5V | 1 | ||
| Output current | IO(off) | 0.5 | μA | VCC=50V, VI=0 | 1 | ||
| DC current gain | GI | 56 | VO=5V, IO=5mA | 1 | |||
| Input resistance | R1 | 15.4 | 22 | 28.6 | KΩ | 1 | |
| Resistance ratio | R2/R1 | 0.8 | 1 | 1.2 | 1 | ||
| Transition frequency | fT | 250 | MHz | VCE=10V, IE=-5mA, f=100MHz | 1 | ||
| Supply voltage | VCC | 50 | V | Ta=25℃ | 1 | ||
| Input voltage | VIN | -10 | 40 | V | Ta=25℃ | 1 | |
| Output current | IO | 30 | mA | Ta=25℃ | 1 | ||
| Output current | IC(MAX) | 100 | mA | Ta=25℃ | 1 | ||
| Power dissipation | PD | 150 | mW | Ta=25℃ | 1 | ||
| Operation junction and storage temperature range | TJ, Tstg | -55 | 150 | ℃ | 1 |
CAD (KiCad official)
- Symbol:
EMH1 - Footprint:
Package_TO_SOT_SMD:SOT-563 - 3D model: SOT-563 (KiCad packages3D, STEP)
- 3D model files:
emh1-etched.step/emh1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);emh1.step/emh1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Changjing datasheet (3 pp, sha256
02ee4a916a49e22d, retrieved 2026-10-22, 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).