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LM331A-S5TR

Public Made by Adom

by adom

3PEAK Comparators, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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LM331A-S5TR

3PEAK · Comparators · SOT-23-5

LM331A-S5TR from 3PEAK, in a SOT-23-5. 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 Open-collector comparator output that can be wire-ANDed with other open-collector outputs, with low-level output current of 10 mA at VOL = 1.5 V and absolute maximum output current of ±20 mA.
2 V- power_in Negative supply, ground in single-supply operation, with total supply V+ − V− from 2.5 V to 36 V (42 V absolute maximum).
3 -In input Inverting comparator input with common-mode range from 0 V to VCC − 1.5 V (VCC − 2 V over temperature) and input current limited to ±20 mA absolute maximum.
4 +In input Non-inverting comparator input with common-mode range from 0 V to VCC − 1.5 V (VCC − 2 V over temperature) and input current limited to ±20 mA absolute maximum.
5 V+ power_in Positive supply from 2.5 V to 36 V relative to V− (42 V absolute maximum), bypassed with a 0.01 μF to 0.1 μF capacitor within 2 mm.

Key specifications

Parameter Value
Manufacturer 3PEAK
Package SOT-23-5
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 (VCC) VCC 2.5 36 V TA = −40°C to 125°C 6
Input Offset Voltage VOS -6 0.6 6 mV VCC = 5 V to 30 V, VCM = 0V, VO = 1.4 V, TA = −40°C to 125°C 6
Input Bias Current IB 0.1 1 nA VDM = 0 V, VCM = 0 V 6
Input Bias Current IB 1 10 nA VDM = 0 V, VCM = 0 V, TA = −40°C to 125°C 6
Input Offset Current IOS 0.1 1 nA VDM = 0 V, VCM = 0 V 6
Input Offset Current IOS 1 10 nA VDM = 0 V, VCM = 0 V, TA = −40°C to 125°C 6
Common-mode Input Voltage Range VCM 0 V 6
Large-signal Differential Voltage Amplification AVD 50 V/mV VCC = 15 V, VO = 1.4 V to 11.4 V, RL ≥ 15 kΩ to VCC 6
High-level Output Current IOH 25 200 nA VOH = 5 V, VID = 1 V 6
Low-level Output Voltage VOL 250 400 mV IOL = 4 mA, VID = −1 V 6
Low-level Output Voltage VOL 500 mV IOL = 4 mA, VID = −1 V, TA = −40°C to 125°C 6
Quiescent Current per Comparator IQ 150 300 μA VCC = 5 V 6
Supply Voltage (V+ − V−) 42 V 5
Input Current (+IN, −IN) -20 20 mA 5
Output Current (OUT) -20 20 mA 5
Current at Supply Pins -60 60 mA 5
Maximum Junction Temperature (TJ) TJ 150 °C 5
Operating Temperature Range (TA) TA -40 125 °C 5
Storage Temperature Range (TSTG) TSTG -65 150 °C 5
Lead Temperature (Soldering) TL 260 °C 10 sec soldering 5
Junction-to-ambient Thermal Resistance (θJA) θJA 250 °C/W SOT23-5 package 5
Junction-to-case Thermal Resistance (θJC) θJC 81 °C/W SOT23-5 package 5

CAD (KiCad official)

  • Symbol: LM331A-S5TR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: lm331a-s5tr-etched.step / lm331a-s5tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lm331a-s5tr.step / lm331a-s5tr.glb are the bare package body.

Provenance

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

  • Datasheet: 3PEAK datasheet (17 pp, sha256 77353c031a972890, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+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