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RS331XF-Q1

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

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RS331XF-Q1

Jiangsu RUNIC Tech · Comparators · SOT-23-5

RS331XF-Q1 from Jiangsu RUNIC Tech, 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 +IN input Noninverting input; input signals that swing more than 0.3V beyond the supply rails should be current-limited to ±10mA or less.
2 V- power_in Negative (lowest) power supply; the supply is specified as VS = (V+) - (V-) from 1.8V to 5.5V single-supply.
3 -IN input Inverting input; input signals that swing more than 0.3V beyond the supply rails should be current-limited to ±10mA or less.
4 OUT output Open-drain output that requires an external pull-up resistor; output signals that swing more than 0.3V beyond the supply rails should be current-limited to ±55mA or less.
5 V+ power_in Positive (highest) power supply; the supply is specified as VS = (V+) - (V-) from 1.8V to 5.5V single-supply.

Key specifications

Parameter Value
Manufacturer Jiangsu RUNIC Tech
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, single-supply VS 1.8 5.5 V Single-supply 7
Supply voltage, dual-supply VS 0.9 2.75 V Dual-supply, printed as ±0.9 to ±2.75 7
Supply voltage VS 7 V VS=(V+)-(V-) 7
Signal input pin current -10 10 mA Signal input pin (IN+, IN-) 7
Signal output pin current -55 55 mA Signal output pin, swinging more than 0.3V beyond supply rails 7
Output short-circuit duration 10 s Short-circuit to V- or V+ 7
Operating temperature range TA -40 125 °C Operating range, free-air 7
Junction temperature TJ -40 150 °C Junction 7
Storage temperature Tstg -65 150 °C Storage 7
Package thermal impedance θJA 230 °C/W SOT23-5, JESD-51 7
Supply voltage operating range VS 1.8 5.5 V VS=5.0V table; 25°C 8
Quiescent current per channel (RS331-Q1) IQ 60 190 μA VS=5.0V; 25°C 8
Quiescent current per channel (RS331-Q1) IQ 240 μA VS=5.0V; Full 8
Power-supply rejection ratio PSRR 75 dB VS=1.8V to 5.5V; 25°C 8
Input offset voltage VOS -4.5 0.6 4.5 mV VCM=Vs/2; VS=5.0V; 25°C 8
Input offset voltage VOS -5 5 mV VCM=Vs/2; VS=5.0V; Full 8
Input offset voltage drift ΔVos/ΔT 0.5 μV/°C VCM=Vs/2; VS=5.0V; Full 8
Input bias current IB 10 pA VS=5.0V; 25°C 8
Input offset current IOS 10 pA VS=5.0V; 25°C 8
Common-mode rejection ratio CMRR 65 dB VS=5.0V; VCM=-0.1 to 5.6V; 25°C 8
Saturation voltage VSAT 150 350 mV VS=5.0V; IO=4mA; 25°C 8
Saturation voltage VSAT 400 mV VS=5.0V; IO=4mA; Full 8
Output pull-up voltage range VOH 5.5 V VS=5.0V; 25°C 8
Output current (sinking) IO 30 35 mA VS=5.0V; VO=2.5V; 25°C 8
Output current (sinking) IO 20 mA VS=5.0V; VO=2.5V; Full 8
Output leakage current ILEAK 0.01 80 nA VS=5.0V; 25°C 8
Output leakage current ILEAK 100 nA VS=5.0V; Full 8
Propagation delay H to L TPHL 220 ns VS=5.0V; RPU=5.1KΩ, Overdrive=10mV; 25°C 8
Propagation delay H to L TPHL 120 ns VS=5.0V; RPU=5.1KΩ, Overdrive=100mV; 25°C 8
Propagation delay L to H TPLH 550 ns VS=5.0V; RPU=5.1KΩ, Overdrive=10mV; 25°C 8
Propagation delay L to H TPLH 320 ns VS=5.0V; RPU=5.1KΩ, Overdrive=100mV; 25°C 8
Fall time TF 20 ns VS=5.0V; RPU=5.1KΩ, Overdrive=100mV, 10% to 90%; 25°C 8
Quiescent current per channel (RS331-Q1) IQ 45 150 μA VS=1.8V; 25°C 9
Quiescent current per channel (RS331-Q1) IQ 180 μA VS=1.8V; Full 9
Input offset voltage VOS -4.5 0.6 4.5 mV VCM=Vs/2; VS=1.8V; 25°C 9
Input offset voltage VOS -5 5 mV VCM=Vs/2; VS=1.8V; Full 9
Input offset voltage drift ΔVos/ΔT 0.5 μV/°C VCM=Vs/2; VS=1.8V; Full 9
Input bias current IB 10 pA VS=1.8V; 25°C 9
Input offset current IOS 10 pA VS=1.8V; 25°C 9
Common-mode rejection ratio CMRR 60 dB VS=1.8V; VCM=-0.1 to 1.9V; 25°C 9
Saturation voltage VSAT 150 450 mV VS=1.8V; IO=2mA; 25°C 9
Saturation voltage VSAT 500 mV VS=1.8V; IO=2mA; Full 9
Output pull-up voltage range VOH 5.5 V VS=1.8V; 25°C 9
Output current (sinking) IO 4 5 mA VS=1.8V; VO=0.9V; 25°C 9
Output current (sinking) IO 3 mA VS=1.8V; VO=0.9V; Full 9
Output leakage current ILEAK 0.01 80 nA VS=1.8V; 25°C 9
Output leakage current ILEAK 100 nA VS=1.8V; Full 9
Propagation delay H to L TPHL 300 ns VS=1.8V; RPU=5.1KΩ, Overdrive=10mV; 25°C 9
Propagation delay H to L TPHL 200 ns VS=1.8V; RPU=5.1KΩ, Overdrive=100mV; 25°C 9
Propagation delay L to H TPLH 500 ns VS=1.8V; RPU=5.1KΩ, Overdrive=10mV; 25°C 9
Propagation delay L to H TPLH 280 ns VS=1.8V; RPU=5.1KΩ, Overdrive=100mV; 25°C 9
Fall time TF 60 ns VS=1.8V; RPU=5.1KΩ, Overdrive=100mV, 10% to 90%; 25°C 9

CAD (KiCad official)

  • Symbol: RS331XF-Q1
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: rs331xf-q1-etched.step / rs331xf-q1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); rs331xf-q1.step / rs331xf-q1.glb are the bare package body.

Provenance

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

  • Datasheet: Jiangsu RUNIC Tech datasheet (26 pp, sha256 35ee16a6defeb2ef, retrieved 2026-10-28, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), 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