component

MC33161DG

Public Made by Adom

by adom

onsemi Monitors & Reset Circuits, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MC33161DG

onsemi · Monitors & Reset Circuits · SOIC-8

MC33161DG from onsemi, in a SOIC-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 Vref power_in Pinned-out 2.54 V reference output with current limit protection.
2 Input 1 input Comparator channel 1 input, with a voltage range of -1.0 to +40 V.
3 Input 2 input Comparator channel 2 input, with a voltage range of -1.0 to +40 V.
4 GND power_in Ground.
5 Output 2 output Open collector output of channel 2, which can sink up to 20 mA maximum and withstand 40 V.
6 Output 1 output Open collector output of channel 1, which can sink up to 20 mA maximum and withstand 40 V.
7 Mode Select input Mode Select input that programs each comparator channel as inverting or noninverting.
8 VCC power_in Positive power supply input, with a 40 V maximum rating and a minimum of 2.0 V for positive voltage sensing or 4.0 V for negative voltage sensing.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category Power Management ICs
Pins 8

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Threshold Voltage, Vin Increasing Vth 1.245 1.27 1.295 V TA = 25°C 3
Threshold Voltage, Vin Increasing Vth 1.235 1.295 V TA = Tmin to Tmax 3
Threshold Voltage Variation Vth 7 15 mV VCC = 2.0 V to 40 V 3
Threshold Hysteresis, Vin Decreasing VH 15 25 35 mV 3
Threshold Difference /Vth1 − Vth2/ VD 1 15 mV 3
Reference to Threshold Difference VRTD 1.2 1.27 1.32 V (Vref − Vin1), (Vref − Vin2) 3
Input Bias Current IIB 40 200 nA Vin = 1.0 V 3
Input Bias Current IIB 85 400 nA Vin = 1.5 V 3
Mode Select Threshold Voltage Channel 2 Vth(CH 2) 0.3 0.63 0.9 V Figure 6 3
Output Sink Saturation Voltage VOL 0.05 0.3 V ISink = 2.0 mA 3
Output Sink Saturation Voltage VOL 0.22 0.6 V ISink = 10 mA 3
Output Sink Saturation Voltage VOL 0.02 0.2 V ISink = 0.25 mA, VCC = 1.0 V 3
Off-State Leakage Current IOH 0 1 µA VOH = 40 V 3
Reference Output Voltage Vref 2.48 2.54 2.6 V IO = 0 mA, TA = 25°C 3
Reference Load Regulation Regload 0.6 15 mV IO = 0 mA to 2.0 mA 3
Reference Line Regulation Regline 5 15 mV VCC = 4.0 V to 40 V 3
Reference Total Output Variation over Line, Load, and Temperature Vref 2.45 2.6 V 3
Reference Short Circuit Current ISC 8.5 30 mA 3
Power Supply Current ICC 450 700 µA VMode, Vin1, Vin2 = GND; VCC = 5.0 V 3
Power Supply Current ICC 560 900 µA VMode, Vin1, Vin2 = GND; VCC = 40 V 3
Operating Voltage Range (Positive Sensing) VCC 2 40 V Positive Sensing 3
Operating Voltage Range (Negative Sensing) VCC 4 40 V Negative Sensing 3
Power Supply Input Voltage VCC 40 V 2
Comparator Input Voltage Range Vin -1 40 V 2
Comparator Output Sink Current ISink 20 mA Pins 5 and 6 2
Comparator Output Voltage Vout 40 V 2
Maximum Power Dissipation, D Suffix (Case 751) PD 450 mW TA = 70°C 2
Thermal Resistance, Junction-to-Air, D Suffix (Case 751) RθJA 178 °C/W 2
Operating Junction Temperature TJ 150 °C 2
Operating Ambient Temperature (MC33161) TA -40 105 °C MC33161 2
Storage Temperature Range Tstg -55 150 °C 2

CAD (KiCad official)

  • Symbol: MC33161DG
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: mc33161dg-etched.step / mc33161dg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc33161dg.step / mc33161dg.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (20 pp, sha256 82db0ec60b82acaa, retrieved 2026-10-22, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-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).

Datasheet PDF