component
LM331S5
Public Made by Adomby adom
TECH PUBLIC Comparators, SOT23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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LM331S5
TECH PUBLIC · Comparators · SOT23-5
LM331S5 from TECH PUBLIC, in a SOT23-5. 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 | IN- | input | Inverting comparator input per the pin diagram, with common-mode range to ground level and an upper limit of VCC - 1.5V, and should not go more than 0.3V below ground. |
| 2 | GND | power_in | Ground (negative supply) pin; split-supply operation of ±1V to ±18V is also stated. |
| 3 | IN+ | input | Non-inverting comparator input per the pin diagram, with common-mode range to ground level and an upper limit of VCC - 1.5V, and should not go more than 0.3V below ground. |
| 4 | OUT | output | Comparator output that sinks 6.0mA min (16mA typ) with 400mV max saturation voltage at 4mA sink, requires a pull-up resistor, and is compatible with DTL, ECL, TTL, MOS and CMOS logic levels. |
| 5 | VCC | power_in | Positive supply pin with a single-supply range of 2V to 36V and supply current of 0.4mA typ at 5V (1.0mA max). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
LM331S5 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT23-5 (KiCad packages3D, STEP)
- 3D model files:
lm331s5-etched.step/lm331s5-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm331s5.step/lm331s5.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: TECH PUBLIC datasheet (4 pp, sha256
5337b2eb66214cea, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(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).
# LM331S5
**TECH PUBLIC** · Comparators · SOT23-5
LM331S5 from TECH PUBLIC, in a SOT23-5. 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 | IN- | input | Inverting comparator input per the pin diagram, with common-mode range to ground level and an upper limit of VCC - 1.5V, and should not go more than 0.3V below ground. |
| 2 | GND | power_in | Ground (negative supply) pin; split-supply operation of ±1V to ±18V is also stated. |
| 3 | IN+ | input | Non-inverting comparator input per the pin diagram, with common-mode range to ground level and an upper limit of VCC - 1.5V, and should not go more than 0.3V below ground. |
| 4 | OUT | output | Comparator output that sinks 6.0mA min (16mA typ) with 400mV max saturation voltage at 4mA sink, requires a pull-up resistor, and is compatible with DTL, ECL, TTL, MOS and CMOS logic levels. |
| 5 | VCC | power_in | Positive supply pin with a single-supply range of 2V to 36V and supply current of 0.4mA typ at 5V (1.0mA max). |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |
## CAD (KiCad official)
- Symbol: `LM331S5`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT23-5 (KiCad packages3D, STEP)
- 3D model files: `lm331s5-etched.step` / `lm331s5-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm331s5.step` / `lm331s5.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [TECH PUBLIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603009897055875072) (4 pp, sha256 `5337b2eb66214cea`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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/lm331s5-datasheet.pdf)