component
SEC113ZU
Public Made by Adomby adom
SINO IC Digital Transistors, SOT-323. 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
markdownSEC113ZU
SINO IC · Digital Transistors · SOT-323
SEC113ZU from SINO IC, in a SOT-323. 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 | IN | input | Input (base) through built-in R1 of 1 kΩ typ (0.7 to 1.3 kΩ); input voltage range -5 to +10 V, VI(on) max 3 V and VI(off) min 0.3 V. |
| 2 | GND | power_in | Ground (0 V reference), the emitter of the built-in NPN transistor, to which R2 is also connected. |
| 3 | OUT | output | Output (collector) of the built-in NPN transistor, rated 50 V supply (VCC) and 100 mA output current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SINO IC |
| Package | SOT-323 |
| Category | Transistors/Thyristors |
| Pins | 3 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage | VCC | 50 | V | 1 | |||
| Input voltage | VIN | -5 | 10 | V | 1 | ||
| Output current | IC(MAX) | 100 | mA | 1 | |||
| Power dissipation | PD | 200 | mW | 1 | |||
| Junction temperature | TJ | 150 | ℃ | 1 | |||
| Storage temperature | Tstg | -55 | 150 | ℃ | 1 | ||
| Input voltage (off) | VI(off) | 0.3 | V | VCC=5V, IO=100υA | 1 | ||
| Input voltage (on) | VI(on) | 3 | V | VO=0.3V, IO=20mA | 1 | ||
| Output voltage (on) | VO(on) | 0.1 | 0.3 | V | IO/II=10mA/0.5mA | 2 | |
| Input current | I | 7.2 | mA | VI=5V | 2 | ||
| Output current (off) | IO(off) | 0.5 | μA | VCC=50V, VI=0V | 2 | ||
| DC current gain | GI | 33 | - | VO=5V, IO=5mA | 2 | ||
| Input resistance | R1 | 0.7 | 1 | 1.3 | KΩ | 2 | |
| Resistance ratio | R2/R1 | 8 | 10 | 12 | - | 2 | |
| Transition frequency | fT | 250 | MHz | VCE=10V, IE=−5mA, f=100MHz | 2 | ||
| Thermal Resistance, Junction-to-Ambient (Note 2) | RθJA | 625 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
SEC113ZU - Footprint:
Package_TO_SOT_SMD:SOT-323_SC-70 - 3D model: SOT-323 (KiCad packages3D, STEP)
- 3D model files:
sec113zu-etched.step/sec113zu-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sec113zu.step/sec113zu.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SINO IC datasheet (4 pp, sha256
22ebf72176432243, 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).