# GR2803LSS24ARCQ

**GR** · Darlington Transistor Arrays · SSOP-24

GR2803LSS24ARCQ from GR, in a SSOP-24. 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 | NC | unconnected | No Connect pin, not connected internally per the datasheet pin table. |
| 2 | NC | unconnected | No Connect pin, not connected internally per the datasheet pin table. |
| 3 | NC | unconnected | No Connect pin, not connected internally per the datasheet pin table. |
| 4 | 1B | input | Channel 1 Darlington base input; the built-in 2.7kΩ series base resistor allows direct operation from TTL or 5V CMOS devices. |
| 5 | 2B | input | Channel 2 Darlington base input; the built-in 2.7kΩ series base resistor allows direct operation from TTL or 5V CMOS devices. |
| 6 | 3B | input | Channel 3 Darlington base input; the built-in 2.7kΩ series base resistor allows direct operation from TTL or 5V CMOS devices. |
| 7 | 4B | input | Channel 4 Darlington base input; the built-in 2.7kΩ series base resistor allows direct operation from TTL or 5V CMOS devices. |
| 8 | 5B | input | Channel 5 Darlington base input; the built-in 2.7kΩ series base resistor allows direct operation from TTL or 5V CMOS devices. |
| 9 | 6B | input | Channel 6 Darlington base input; the built-in 2.7kΩ series base resistor allows direct operation from TTL or 5V CMOS devices. |
| 10 | 7B | input | Channel 7 Darlington base input; the built-in 2.7kΩ series base resistor allows direct operation from TTL or 5V CMOS devices. |
| 11 | 8B | input | Channel 8 Darlington base input; the built-in 2.7kΩ series base resistor allows direct operation from TTL or 5V CMOS devices. |
| 12 | GND/E | power_in | Common emitter shared by all channels, typically tied to ground. |
| 13 | COM | bidirectional | Common cathode node for flyback diodes, required for inductive loads. |
| 14 | 8C | output | Channel 8 Darlington collector output, rated for 500 mA collector current. |
| 15 | 7C | output | Channel 7 Darlington collector output, rated for 500 mA collector current. |
| 16 | 6C | output | Channel 6 Darlington collector output, rated for 500 mA collector current. |
| 17 | 5C | output | Channel 5 Darlington collector output, rated for 500 mA collector current. |
| 18 | 4C | output | Channel 4 Darlington collector output, rated for 500 mA collector current. |
| 19 | 3C | output | Channel 3 Darlington collector output, rated for 500 mA collector current. |
| 20 | 2C | output | Channel 2 Darlington collector output, rated for 500 mA collector current. |
| 21 | 1C | output | Channel 1 Darlington collector output, rated for 500 mA collector current. |
| 22 | NC | unconnected | No Connect pin, not connected internally per the datasheet pin table. |
| 23 | NC | unconnected | No Connect pin, not connected internally per the datasheet pin table. |
| 24 | NC | unconnected | No Connect pin, not connected internally per the datasheet pin table. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | GR |
| Package | SSOP-24 |
| Category | Transistors/Thyristors |
| Pins | 24 |

## 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 Cutoff Current | ICEX |  | 0 | 10 | uA | VCE=20V,II= 0 | 5 |
| Off-state input current | II(off) | 50 | 80 |  | uA | IC = 500 uA | 5 |
| Input Current | II(on) |  | 0.9 | 1.3 | mA | VI=3.85V | 5 |
| On-state Input Voltage | VI(on) |  | 1.9 | 2.4 | V | VCE=2V,IC = 200 mA | 5 |
| On-state Input Voltage | VI(on) |  | 2.1 | 2.7 | V | VCE=2V,IC = 250 mA | 5 |
| On-state Input Voltage | VI(on) |  | 2.6 | 3 | V | VCE=2V,IC = 300 mA | 5 |
| Collector-Emitter Saturation Voltage | VCE(sat) |  | 1 | 1.2 | V | II=250uA,IC = 100 mA | 5 |
| Collector-Emitter Saturation Voltage | VCE(sat) |  | 1.3 | 1.5 | V | II=350uA,IC = 200 mA | 5 |
| Collector-Emitter Saturation Voltage | VCE(sat) |  | 2.1 | 2.3 | V | II=500uA,IC = 350 mA | 5 |
| Clamp Diode Reverse Current | IR |  | 0 | 15 | uA | VR=20V | 5 |
| Clamp Diode Forward Voltage | VF |  | 1.3 | 2 | V | IF= 350 mA | 5 |
| Collector-Emitter Voltage | VCE |  |  | 25 | V |  | 4 |
| Input Voltage Range, All Inputs | VI |  |  | 15 | V |  | 4 |
| Peak Collector Current |  |  |  | 500 | mA |  | 4 |
| Power Dissipation | PD |  |  | 500 | mW |  | 4 |
| Junction Temperature | TJ |  |  | 125 | ℃ |  | 4 |
| Operating Temperature | TOP | -40 |  | 85 | ℃ |  | 4 |

## CAD (KiCad official)

- Symbol: `GR2803LSS24ARCQ`
- Footprint: `Package_SO:SSOP-24_5.3x8.2mm_P0.65mm`
- 3D model: SSOP-24 (KiCad packages3D, STEP)
- 3D model files: `gr2803lss24arcq-etched.step` / `gr2803lss24arcq-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gr2803lss24arcq.step` / `gr2803lss24arcq.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [GR datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603388389844664320) (12 pp, sha256 `22c944a1db8c70e9`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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/gr2803lss24arcq-datasheet.pdf)