# ZXTD2090E6TA

**Diodes Incorporated** · Bipolar (BJT) · SOT-26

ZXTD2090E6TA from Diodes Incorporated, in a SOT-26. 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 | E1 | passive | Emitter of transistor Q1 (NPN), pin 1 marked by the dot on the top-view pin-out. |
| 2 | B1 | input | Base of transistor Q1; base current IB is rated 200 mA maximum and VEBO is 7 V. |
| 3 | C2 | passive | Collector of transistor Q2; VCEO is 50 V, continuous IC is 1 A and peak pulse ICM is 2 A. |
| 4 | E2 | passive | Emitter of transistor Q2 (NPN). |
| 5 | B2 | input | Base of transistor Q2; base current IB is rated 200 mA maximum and VEBO is 7 V. |
| 6 | C1 | passive | Collector of transistor Q1; VCEO is 50 V, continuous IC is 1 A and peak pulse ICM is 2 A. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOT-26 |
| Category | Transistors/Thyristors |
| Pins | 6 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Collector-Base Voltage | VCBO |  |  | 50 | V | @TA = +25°C | 2 |
| Collector-Emitter Voltage | VCEO |  |  | 50 | V | @TA = +25°C | 2 |
| Emitter-Base Voltage | VEBO |  |  | 7 | V | @TA = +25°C | 2 |
| Continuous Collector Current | IC |  |  | 1 | A | @TA = +25°C | 2 |
| Peak Pulse Current | ICM |  |  | 2 | A | @TA = +25°C | 2 |
| Base Current | IB |  |  | 200 | mA | @TA = +25°C | 2 |
| Operating and Storage Temperature Range | TJ, TSTG | -55 |  | 150 | °C |  | 2 |
| Collector-Base Breakdown Voltage | BVCBO | 50 |  |  | V | IC = 100µA | 4 |
| Collector-Emitter Breakdown Voltage | BVCEO | 50 |  |  | V | IC = 10mA | 4 |
| Emitter-Base Breakdown Voltage | BVEBO | 7 |  |  | V | IE = 100µA | 4 |
| Collector-Base Cut-Off Current | ICBO |  |  | 10 | nA | VCB = 40V | 4 |
| Collector-Emitter Cut-Off Current | ICES |  |  | 10 | nA | VCES = 40V | 4 |
| Emitter Cut-Off Current | IEBO |  |  | 10 | nA | VEB = 5.6V | 4 |
| DC Current Gain (min) | hFE | 200 |  |  |  | IC = 10mA, VCE = 2V | 4 |
| DC Current Gain (min) | hFE | 300 |  |  |  | IC = 100mA, VCE = 2V | 4 |
| DC Current Gain (min) | hFE | 75 |  |  |  | IC = 1A, VCE = 2V | 4 |
| DC Current Gain (min) | hFE | 20 |  |  |  | IC = 1.5A, VCE = 2V | 4 |
| DC Current Gain (max) | hFE |  |  | 420 |  | IC = 10mA, VCE = 2V | 4 |
| DC Current Gain (max) | hFE |  |  | 450 |  | IC = 100mA, VCE = 2V | 4 |
| DC Current Gain (max) | hFE |  |  | 350 |  | IC = 500mA, VCE = 2V | 4 |
| DC Current Gain (max) | hFE |  |  | 130 |  | IC = 1A, VCE = 2V | 4 |
| DC Current Gain (max) | hFE |  |  | 60 |  | IC = 1.5A, VCE = 2V | 4 |
| Collector-Emitter Saturation Voltage (min) | VCE(sat) | 24 |  |  | mV | IC = 100mA, IB = 10mA | 4 |
| Collector-Emitter Saturation Voltage (min) | VCE(sat) | 60 |  |  | mV | IC = 250mA, IB = 10mA | 4 |
| Collector-Emitter Saturation Voltage (min) | VCE(sat) | 120 |  |  | mV | IC = 500mA, IB = 10mA | 4 |
| Collector-Emitter Saturation Voltage (min) | VCE(sat) | 160 |  |  | mV | IC = 1A, IB = 50mA | 4 |
| Collector-Emitter Saturation Voltage (max) | VCE(sat) |  |  | 35 | mV | IC = 100mA, IB = 10mA | 4 |
| Collector-Emitter Saturation Voltage (max) | VCE(sat) |  |  | 80 | mV | IC = 250mA, IB = 10mA | 4 |
| Collector-Emitter Saturation Voltage (max) | VCE(sat) |  |  | 200 | mV | IC = 500mA, IB = 10mA | 4 |
| Collector-Emitter Saturation Voltage (max) | VCE(sat) |  |  | 270 | mV | IC = 1A, IB = 50mA | 4 |
| Base-Emitter Saturation Voltage | VBE(sat) |  | 940 | 1100 | mV | IC = 1A, IB = 50mA | 4 |
| Base-Emitter Turn-On Voltage | VBE(on) |  | 850 | 1100 | mV | IC = 1A, VCE = 2V | 4 |
| Thermal Resistance, Junction to Ambient | RJA |  | 179 |  | °C/W | Notes 5 & 9 | 2 |
| Thermal Resistance, Junction to Ambient | RJA |  | 139 |  | °C/W | Notes 6 & 9 | 2 |
| Thermal Resistance, Junction to Ambient | RJA |  | 113 |  | °C/W | Notes 6 & 10 | 2 |
| Thermal Resistance, Junction to Ambient | RJA |  | 73 |  | °C/W | Notes 8 & 9 | 2 |
| Thermal Resistance, Junction to Lead | RJL |  | 95.5 |  | °C/W | Note 11 | 2 |
| Power Dissipation | PD |  | 0.7 |  | W | Notes 5 & 9 | 2 |
| Power Dissipation | PD |  | 0.9 |  | W | Notes 6 & 9 | 2 |
| Power Dissipation | PD |  | 1.1 |  | W | Notes 6 & 10 | 2 |
| Power Dissipation | PD |  | 1.7 |  | W | Notes 8 & 9 | 2 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | tin |  Terminals: Finish, Matte Tin Plated Leads, Solderable per MIL-STD-202, Method 208 | 1 |

## CAD (KiCad official)

- Symbol: `ZXTD2090E6TA`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-26 (KiCad packages3D, STEP)
- 3D model files: `zxtd2090e6ta-etched.step` / `zxtd2090e6ta-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `zxtd2090e6ta.step` / `zxtd2090e6ta.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Diodes Incorporated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602725994931232768) (7 pp, sha256 `43245e29cb3c1867`, retrieved 2026-10-17, tier: lcsc)
- **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/zxtd2090e6ta-datasheet.pdf)