component
1SS398
Public Made by Adomby adom
TOSHIBA Pre-ordered Products, TO-236-3(SOT-23-3). 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
markdown1SS398
TOSHIBA · Pre-ordered Products · TO-236-3(SOT-23-3)
1SS398 from TOSHIBA, in a TO-236-3(SOT-23-3). 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 | ANODE1 | passive | Anode of diode 1 in the dual series-connected pair; the pair is rated VR = 400 V and IO = 100 mA per unit. |
| 2 | CATHODE2 | passive | Cathode of diode 2 in the dual pair; the pair is rated VR = 400 V and IO = 100 mA per unit. |
| 3 | CATHODE1, ANODE2 | passive | Common node joining the cathode of diode 1 and the anode of diode 2 (series connection); the pair is rated VR = 400 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| Package | TO-236-3(SOT-23-3) |
| Category | Solders / Accessories / Batteries |
| 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 |
|---|---|---|---|---|---|---|---|
| Forward voltage | VF (2) | 1 | 1.3 | V | IF = 100 mA | 1 | |
| Reverse current | IR (1) | 0.05 | μA | VR = 300 V | 1 | ||
| Reverse current | IR (2) | 0.1 | μA | VR = 400 V | 1 | ||
| Total capacitance | CT | 2.5 | 5 | pF | VR = 0 V, f = 1 MHz | 1 | |
| Maximum (peak) reverse voltage | VRM | 420 | V | 1 | |||
| Reverse voltage | VR | 400 | V | 1 | |||
| Maximum (peak) forward current | IFM | 300 | mA | *: Unit rating. Total rating = unit rating × 0.7 | 1 | ||
| Average forward current | IO | 100 | mA | *: Unit rating. Total rating = unit rating × 0.7 | 1 | ||
| Surge current | IFSM | 2 | A | 10 ms; *: Unit rating. Total rating = unit rating × 0.7 | 1 | ||
| Power dissipation | PD | 150 | mW | Note 2 (ordering part number other than LF(T) suffix) | 1 | ||
| Junction temperature | Tj | 125 | °C | Note 2 (ordering part number other than LF(T) suffix) | 1 | ||
| Storage temperature range | Tstg | -55 | 125 | °C | Note 2 (ordering part number other than LF(T) suffix) | 1 |
CAD (KiCad official)
- Symbol:
1SS398 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
- 3D model files:
1ss398-etched.step/1ss398-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);1ss398.step/1ss398.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOSHIBA datasheet (4 pp, sha256
f2ae7d60610d242c, retrieved 2026-10-31, tier: manufacturer) - 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).