# RS8904XC5

**Jiangsu RUNIC Tech** · Comparators · SC70-5

RS8904XC5 from Jiangsu RUNIC Tech, in a SC70-5. 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 | OUT | output | Push-pull comparator output that swings rail to rail and can source up to 46 mA and sink up to 40 mA at a 5 V supply. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | IN+ | input | Non-inverting comparator input; input common-mode range extends 0.1 V beyond the supply rails (VCM from (V-)-0.1 V to (V+)+0.1 V), and input pins are diode-clamped to the rails with input currents limited to 10 mA when swinging more than 0.3 V beyond them. |
| 4 | IN- | input | Inverting comparator input; input pins are diode-clamped to the supply rails and signals exceeding 0.3 V beyond the rails should be current-limited to 10 mA or less. |
| 5 | VCC | power_in | Positive (highest) power supply pin; single-supply operating range is 2.7 V to 5.5 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Jiangsu RUNIC Tech |
| Package | SC70-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |

## 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 (single-supply) | Vs | 2.7 |  | 5.5 | V | Single-supply; over operating free-air temperature range | 6 |
| Supply voltage (dual-supply) | Vs | 1.35 |  | 2.75 | V | Dual-supply (printed as ±1.35 / ±2.75); Vs=(V+)-(V-); over operating free-air temperature range | 6 |
| Supply voltage |  |  |  | 7 | V | Over operating free-air temperature range | 6 |
| Input pin voltage (IN+, IN-) |  | -0.3 |  | 0.3 | V | Relative to (VCC); over operating free-air temperature range | 6 |
| Signal output pin voltage |  | -0.3 |  | 0.3 | V | Relative to (VCC); over operating free-air temperature range | 6 |
| Signal input pin current (IN+, IN-) |  | -10 |  | 10 | mA | Over operating free-air temperature range | 6 |
| Signal output pin current |  | -100 |  | 100 | mA | Over operating free-air temperature range | 6 |
| Operating range, TA | TA | -40 |  | 125 | °C |  | 6 |
| Junction temperature, TJ | TJ | -40 |  | 150 | °C |  | 6 |
| Storage temperature, Tstg | Tstg | -65 |  | 150 | °C |  | 6 |
| Input offset voltage | Vos | -20 | 3 | 20 | mV | TA = 25°C, VCC=2.7V; VCM =VCC/2 (typ printed as ±3) | 8 |
| Input offset voltage drift | ΔVos/ΔT | -2 |  | 2 | µV/°C | VCC=2.7V; TA = -40°C to 125°C (printed as ±2) | 8 |
| Input offset voltage | Vos | -20 | 3 | 20 | mV | TA = 25°C, VCC=5V; VCM=VCC/2 (typ printed as ±3) | 9 |
| Input offset voltage drift | ΔVos/ΔT | -2 |  | 2 | µV/°C | VCC=5V; TA = -40°C to 125°C (printed as ±2) | 9 |
| Junction-to-ambient thermal resistance (SOT353 / SC70-5) | RϴJA |  | 214.7 |  | °C/W |  | 7 |
| Junction-to-case (top) thermal resistance (SOT353 / SC70-5) | RϴJC(top) |  | 127.1 |  | °C/W |  | 7 |
| Junction-to-board thermal resistance (SOT353 / SC70-5) | RϴJB |  | 60 |  | °C/W |  | 7 |
| Junction-to-top characterization parameter (SOT353 / SC70-5) | ѰJT |  | 33.4 |  | °C/W |  | 7 |
| Junction-to-board characterization parameter (SOT353 / SC70-5) | ѰJB |  | 59.8 |  | °C/W |  | 7 |

## CAD (KiCad official)

- Symbol: `RS8904XC5`
- Footprint: `Package_TO_SOT_SMD:SOT-353_SC-70-5`
- 3D model: SC70-5 (KiCad packages3D, STEP)
- 3D model files: `rs8904xc5-etched.step` / `rs8904xc5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `rs8904xc5.step` / `rs8904xc5.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Jiangsu RUNIC Tech datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8602895649415176192) (21 pp, sha256 `95a4f05288dc1869`, retrieved 2026-10-17, 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/rs8904xc5-datasheet.pdf)