component
LM2903BYDT
Public Made by Adomby adom
STMicroelectronics Comparators, SO-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLM2903BYDT
STMicroelectronics · Comparators · SO-8
LM2903BYDT from STMicroelectronics, in a SO-8. 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 | OUT1 | output | Output of comparator 1, which saturates low at 250 mV typ. (Iout = 4 mA) and is compatible with TTL, DTL, ECL, MOS and CMOS logic; the output short-circuit current is approximately 30 mA with infinite short-circuit duration. |
| 2 | IN1- | input | Inverting input of comparator 1; the input common-mode range includes the negative rail (Vcc- to Vcc+ - 1.5 V at 25 °C) and the low input voltage must not be less than -0.3 V. |
| 3 | IN1+ | input | Non-inverting input of comparator 1; the input voltage is limited to -0.3 V to 40 V (absolute maximum) and the input current to 10 mA. |
| 4 | VCC- | power_in | Negative supply rail, 0 V in the specified test conditions and the ground reference for single-supply operation; dual supplies of ±1 V to ±18 V are also possible. |
| 5 | IN2+ | input | Non-inverting input of comparator 2; the input voltage is limited to -0.3 V to 40 V (absolute maximum) and the input current to 10 mA. |
| 6 | IN2- | input | Inverting input of comparator 2; the input common-mode range includes the negative rail (Vcc- to Vcc+ - 1.5 V at 25 °C) and the low input voltage must not be less than -0.3 V. |
| 7 | OUT2 | output | Output of comparator 2, which saturates low at 250 mV typ. (Iout = 4 mA) and is compatible with TTL, DTL, ECL, MOS and CMOS logic; the output short-circuit current is approximately 30 mA with infinite short-circuit duration. |
| 8 | VCC+ | power_in | Positive supply rail, operating range 2 V to 36 V (absolute maximum 40 V for the B-grade device). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | SO-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
LM2903BYDT - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
lm2903bydt-etched.step/lm2903bydt-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm2903bydt.step/lm2903bydt.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (20 pp, sha256
bfa6780025a30e66, retrieved 2026-10-08, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).