component
DTA115EKAT146
Public Made by Adomby adom
ROHM Semicon Bipolar Transistors - BJT, TO-236-3(SOT-23-3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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DTA115EKAT146
ROHM Semicon · Bipolar Transistors - BJT · TO-236-3(SOT-23-3)
DTA115EKAT146 from ROHM Semicon, 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 | GND (EMITTER) | power_in | Ground (+) / emitter terminal of the built-in PNP transistor; R2 (100kΩ) is connected between base and this pin. |
| 2 | IN (BASE) | input | Input/base terminal connected through built-in R1 = 100kΩ; VI(off) max -0.5V, VI(on) min -3.0V, input voltage range -40 to 10V. |
| 3 | OUT (COLLECTOR) | output | Output/collector terminal with IO max -20mA (IC(MAX) -100mA) and VCC max -50V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | TO-236-3(SOT-23-3) |
| Category | Triode/MOS Tube/Transistor |
| 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 | Ta = 25°C | 2 | ||
| Input voltage | VIN | -40 | 10 | V | Ta = 25°C | 2 | |
| Output current | IO | -20 | mA | Ta = 25°C | 2 | ||
| Collector current | IC(MAX) | -100 | mA | Ta = 25°C; characteristics of built-in transistor | 2 | ||
| Power dissipation DTA115EKA | PD | 200 | mW | Ta = 25°C; each terminal mounted on a reference land | 2 | ||
| Junction temperature | Tj | 150 | ℃ | Ta = 25°C | 2 | ||
| Range of storage temperature | Tstg | -55 | 150 | ℃ | Ta = 25°C | 2 | |
| Input voltage (off) | VI(off) | -0.5 | V | VCC = -5V, IO = -100μA | 2 | ||
| Input voltage (on) | VI(on) | -3 | V | VO = -0.3V, IO = -1mA | 2 | ||
| Output voltage | VO(on) | -100 | -300 | mV | IO = -5mA, II = -0.25mA | 2 | |
| Input current | II | -150 | μA | VI = -5V | 2 | ||
| Output current (off) | IO(off) | -500 | nA | VCC = -50V, VI = 0V | 2 | ||
| DC current gain | GI | 82 | - | VO = -5V, IO = -5mA | 2 | ||
| Input resistance | R1 | 70 | 100 | 130 | kΩ | 2 | |
| Resistance ratio | R2/R1 | 0.8 | 1 | 1.2 | - | 2 | |
| Transition frequency | fT | 250 | MHz | VCE = -10V, IE = 5mA, f = 100MHz; characteristics of built-in transistor | 2 |
CAD (KiCad official)
- Symbol:
DTA115EKAT146 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
- 3D model files:
dta115ekat146-etched.step/dta115ekat146-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);dta115ekat146.step/dta115ekat146.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ROHM Semicon datasheet (12 pp, sha256
ee3621ee0c79145e, retrieved 2026-10-22, 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).
# DTA115EKAT146
**ROHM Semicon** · Bipolar Transistors - BJT · TO-236-3(SOT-23-3)
DTA115EKAT146 from ROHM Semicon, 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 | GND (EMITTER) | power_in | Ground (+) / emitter terminal of the built-in PNP transistor; R2 (100kΩ) is connected between base and this pin. |
| 2 | IN (BASE) | input | Input/base terminal connected through built-in R1 = 100kΩ; VI(off) max -0.5V, VI(on) min -3.0V, input voltage range -40 to 10V. |
| 3 | OUT (COLLECTOR) | output | Output/collector terminal with IO max -20mA (IC(MAX) -100mA) and VCC max -50V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ROHM Semicon |
| Package | TO-236-3(SOT-23-3) |
| Category | Triode/MOS Tube/Transistor |
| 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 | Ta = 25°C | 2 |
| Input voltage | VIN | -40 | | 10 | V | Ta = 25°C | 2 |
| Output current | IO | | | -20 | mA | Ta = 25°C | 2 |
| Collector current | IC(MAX) | | | -100 | mA | Ta = 25°C; characteristics of built-in transistor | 2 |
| Power dissipation DTA115EKA | PD | | | 200 | mW | Ta = 25°C; each terminal mounted on a reference land | 2 |
| Junction temperature | Tj | | | 150 | ℃ | Ta = 25°C | 2 |
| Range of storage temperature | Tstg | -55 | | 150 | ℃ | Ta = 25°C | 2 |
| Input voltage (off) | VI(off) | | | -0.5 | V | VCC = -5V, IO = -100μA | 2 |
| Input voltage (on) | VI(on) | -3 | | | V | VO = -0.3V, IO = -1mA | 2 |
| Output voltage | VO(on) | | -100 | -300 | mV | IO = -5mA, II = -0.25mA | 2 |
| Input current | II | | | -150 | μA | VI = -5V | 2 |
| Output current (off) | IO(off) | | | -500 | nA | VCC = -50V, VI = 0V | 2 |
| DC current gain | GI | 82 | | | - | VO = -5V, IO = -5mA | 2 |
| Input resistance | R1 | 70 | 100 | 130 | kΩ | | 2 |
| Resistance ratio | R2/R1 | 0.8 | 1 | 1.2 | - | | 2 |
| Transition frequency | fT | | 250 | | MHz | VCE = -10V, IE = 5mA, f = 100MHz; characteristics of built-in transistor | 2 |
## CAD (KiCad official)
- Symbol: `DTA115EKAT146`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: TO-236-3(SOT-23-3) (KiCad packages3D, STEP)
- 3D model files: `dta115ekat146-etched.step` / `dta115ekat146-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `dta115ekat146.step` / `dta115ekat146.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [ROHM Semicon datasheet](docs/dta115ekat146-datasheet.pdf) (12 pp, sha256 `ee3621ee0c79145e`, retrieved 2026-10-22, 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/dta115ekat146-datasheet.pdf)