component
1SS193
Public Made by Adomby adom
UMW Switching Diodes, SOT-23. 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
markdown1SS193
UMW · Switching Diodes · SOT-23
1SS193 from UMW, in a SOT-23. 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 | A | passive | Anode of the single switching diode (symbol shows current flowing from pin 1 to pin 3), with 80 V DC blocking voltage, 85 V non-repetitive peak reverse voltage and 300 mA forward continuous current. |
| 2 | NC | unconnected | Not connected; pin 2 is drawn as an open, unconnected terminal in the package schematic. |
| 3 | K | passive | Cathode of the single switching diode (symbol shows the diode bar toward pin 3), with 80 V DC blocking voltage and 100 mA average rectified output current. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOT-23 |
| Category | Diodes |
| 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 |
|---|---|---|---|---|---|---|---|
| Reverse breakdown voltage | V(BR) | 80 | V | IR=100μA | 1 | ||
| Forward voltage | VF1 | 0.61 | V | IF=1mA | 1 | ||
| Forward voltage | VF2 | 0.74 | V | IF=10mA | 1 | ||
| Forward voltage | VF3 | 0.92 | 1.2 | V | IF=100mA | 1 | |
| Reverse current | IR1 | 0.1 | uA | VR=30V | 1 | ||
| Reverse current | IR2 | 0.5 | uA | VR=80V | 1 | ||
| Capacitance between terminals | CT | 1 | 3 | PF | VR=0V,f=1MHz | 1 | |
| Reverse recovery time | trr | 1.6 | 4 | nS | IF=IR=10mA,Irr=0.1×IR | 1 | |
| Non-Repetitive Peak Reverse Voltage | VRM | 85 | V | @Ta=25℃ | 1 | ||
| DC Blocking Voltage | VR | 80 | V | @Ta=25℃ | 1 | ||
| Forward Continuous Current | IFM | 300 | mA | @Ta=25℃ | 1 | ||
| Average Rectified Output Current | IO | 100 | mA | @Ta=25℃ | 1 | ||
| Non-Repetitive Peak Forward Surge Current | IFSM | 2 | A | @t=8.3ms, @Ta=25℃ | 1 | ||
| Power Dissipation | PD | 150 | mW | @Ta=25℃ | 1 | ||
| Junction Temperature | TJ | 150 | ℃ | @Ta=25℃ | 1 | ||
| Storage Temperature Range | TSTG | -55 | 150 | ℃ | 1 | ||
| Thermal Resistance from Junction to Ambient | RθJA | 833 | ℃/W | 1 |
CAD (KiCad official)
- Symbol:
1SS193 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
1ss193-etched.step/1ss193-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1ss193.step/1ss193.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (3 pp, sha256
6e324ed6ffeadcc7, 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).