component
RN1405
Public Made by Adomby adom
TOSHIBA Digital Transistors, TO-236-3(SOT-23-3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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RN1405
TOSHIBA · Digital Transistors · TO-236-3(SOT-23-3)
RN1405 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 | B | input | Base input of the NPN transistor with built-in bias resistors (R1 = 2.2 kΩ in series, R2 = 47 kΩ base-emitter for RN1405); VEBO max 5 V. |
| 2 | E | passive | Emitter of the NPN transistor, normally connected to ground in switching/inverter circuits. |
| 3 | C | passive | Collector of the NPN transistor; VCEO max 50 V, IC max 100 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| Package | TO-236-3(SOT-23-3) |
| 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 |
|---|---|---|---|---|---|---|---|
| Input resistor R1 (built-in bias resistor) | R1 | 1.54 | 2.2 | 2.86 | kΩ | 4 | |
| Resistor ratio R1/R2 | R1/R2 | 0.0421 | 0.0468 | 0.0515 | 4 | ||
| Collector cut-off current | ICBO | 100 | nA | VCB = 50 V, IE = 0 mA | 4 | ||
| Collector cut-off current | ICEO | 500 | nA | VCE = 50 V, IB = 0 mA | 4 | ||
| Collector-emitter saturation voltage | VCE(sat) | 0.1 | 0.3 | V | IC = 5 mA, IB = 0.25 mA | 4 | |
| Collector-base voltage | VCBO | 50 | V | 3 | |||
| Collector current | IC | 100 | mA | 3 | |||
| Collector power dissipation | PC | 200 | mW | 3 | |||
| Junction temperature | Tj | 150 | °C | 3 | |||
| Storage temperature | Tstg | -55 | 150 | °C | 3 |
CAD (KiCad official)
- Symbol:
RN1405 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
- 3D model files:
rn1405-etched.step/rn1405-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);rn1405.step/rn1405.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TOSHIBA datasheet (11 pp, sha256
6acb19feab63e3a2, retrieved 2026-10-15, 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).
# RN1405
**TOSHIBA** · Digital Transistors · TO-236-3(SOT-23-3)
RN1405 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 | B | input | Base input of the NPN transistor with built-in bias resistors (R1 = 2.2 kΩ in series, R2 = 47 kΩ base-emitter for RN1405); VEBO max 5 V. |
| 2 | E | passive | Emitter of the NPN transistor, normally connected to ground in switching/inverter circuits. |
| 3 | C | passive | Collector of the NPN transistor; VCEO max 50 V, IC max 100 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TOSHIBA |
| Package | TO-236-3(SOT-23-3) |
| 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 |
|---|---|---|---|---|---|---|---|
| Input resistor R1 (built-in bias resistor) | R1 | 1.54 | 2.2 | 2.86 | kΩ | | 4 |
| Resistor ratio R1/R2 | R1/R2 | 0.0421 | 0.0468 | 0.0515 | | | 4 |
| Collector cut-off current | ICBO | | | 100 | nA | VCB = 50 V, IE = 0 mA | 4 |
| Collector cut-off current | ICEO | | | 500 | nA | VCE = 50 V, IB = 0 mA | 4 |
| Collector-emitter saturation voltage | VCE(sat) | | 0.1 | 0.3 | V | IC = 5 mA, IB = 0.25 mA | 4 |
| Collector-base voltage | VCBO | | | 50 | V | | 3 |
| Collector current | IC | | | 100 | mA | | 3 |
| Collector power dissipation | PC | | | 200 | mW | | 3 |
| Junction temperature | Tj | | | 150 | °C | | 3 |
| Storage temperature | Tstg | -55 | | 150 | °C | | 3 |
## CAD (KiCad official)
- Symbol: `RN1405`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
- 3D model files: `rn1405-etched.step` / `rn1405-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rn1405.step` / `rn1405.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [TOSHIBA datasheet](docs/rn1405-datasheet.pdf) (11 pp, sha256 `6acb19feab63e3a2`, retrieved 2026-10-15, tier: manufacturer)
- **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](docs/rn1405-datasheet.pdf)