component
LM339A-SR
Public Made by Adomby adom
3PEAK Comparators, SOIC-14. Pinout reviewed by a person against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownLM339A-SR
3PEAK · Comparators · SOIC-14
LM339A-SR from 3PEAK, in a SOIC-14. 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_A | output | Open-drain output of comparator A; pulls low when −IN > +IN, VOL ≤ 400 mV at IOL = 4 mA (25 °C), leakage IOH ≤ 200 nA at VOH = 5 V. |
| 2 | OUT_B | output | Open-drain output of comparator B; same electrical characteristics as OUT_A. |
| 3 | V+ | power_in | Positive power supply, 2.5 V to 36 V single-supply or ±1.25 V to ±18 V split-supply; bypass with 0.1 µF ceramic capacitor placed within 2 mm of pin. |
| 4 | +IN_B | input | Non-inverting input of comparator B; common-mode range 0 V to V+−1.5 V (25 °C), input bias current 4 nA typ, protected by 1 kΩ series ESD diode network. |
| 5 | -IN_B | input | Inverting input of comparator B; same voltage range and bias current as +IN_B. |
| 6 | -IN_A | input | Inverting input of comparator A; common-mode range 0 V to V+−1.5 V (25 °C), input bias current 4 nA typ. |
| 7 | +IN_A | input | Non-inverting input of comparator A; same voltage range and bias current as −IN_A. |
| 8 | +IN_C | input | Non-inverting input of comparator C; common-mode range 0 V to V+−1.5 V (25 °C), input bias current 4 nA typ. |
| 9 | -IN_C | input | Inverting input of comparator C; same voltage range and bias current as +IN_C. |
| 10 | -IN_D | input | Inverting input of comparator D; common-mode range 0 V to V+−1.5 V (25 °C), input bias current 4 nA typ. |
| 11 | +IN_D | input | Non-inverting input of comparator D; same voltage range and bias current as −IN_D. |
| 12 | V- | power_in | Negative power supply / GND; normally tied to ground, must maintain 2.5 V to 36 V between V+ and V−; bypass with 0.1 µF if not at ground. |
| 13 | OUT_D | output | Open-drain output of comparator D; VOL ≤ 400 mV at IOL = 4 mA (25 °C), leakage IOH ≤ 200 nA at VOH = 5 V. |
| 14 | OUT_C | output | Open-drain output of comparator C; same electrical characteristics as OUT_D. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | 3PEAK |
| Package | SOIC-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
LM339A-SR - Footprint:
Package_SO:SOIC-14_3.9x8.7mm_P1.27mm - 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files:
lm339a-sr-etched.step/lm339a-sr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm339a-sr.step/lm339a-sr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: 3PEAK datasheet (14 pp, sha256
d7e89d5ed96db1e0, retrieved 2026-09-29, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).