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MD6127C37

Public Made by Adom

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Shanghai Mingda Microelectronics Monitors & Reset Circuits, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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MD6127C37

Shanghai Mingda Microelectronics · Monitors & Reset Circuits · SOT-23-5L

MD6127C37 from Shanghai Mingda Microelectronics, in a SOT-23-5L. 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 DS input Delay time switching pin; must be fixed at low or high level, high level shortens the delay (VSH min 1.0 V, VSL max 0.3 V at VDD=6.0 V).
2 VSS power_in Ground pin.
3 NC unconnected No connection.
4 VOUT output Voltage detection output (NMOS open-drain or CMOS push-pull depending on variant); goes low when VDD falls below detection voltage and returns high after the 200 ms typical delay.
5 VDD power_in Detection voltage input and supply pin, operating range 1 V to 12 V, absolute maximum 15 V.

Key specifications

Parameter Value
Manufacturer Shanghai Mingda Microelectronics
Package SOT-23-5L
Category Power Supply Chip
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
Detection voltage -VDET 0.98 1 1.02 x -VDET(S) -VDET(S) = 3.7 V set value; Ta=25℃ 4
Hysteresis width VHYS 30 60 100 mV 4
Operating voltage VDD 1 12 V 4
Supply current Iss 1.2 5 μA VDD=4.5V, MD6127C27~39 4
N-channel output current IOUT 0.75 1.5 mA VOUT=0.5 V, VDD=1.2 V, MD6127C22~60 4
N-channel output current IOUT 3 6 mA VOUT=0.5 V, VDD=2.4 V, MD6127C27~60 4
P-channel output current (CMOS) IOUT 1 2 mA VDD-VOUT=0.5 V, VDD=4.8 V, MD6127C22~39 4
Detection voltage temperature coefficient Δ(-VDET)/ΔTa·(-VDET) 120 360 ppm/℃ Ta=-40°C~+85°C; printed ±120 typ, ±360 max 4
Delay time 1 Td1 130 200 290 ms VDD=-VDET+1 V, DS pin low 4
Delay time 2 Td2 110 220 330 μs VDD=-VDET+1 V, DS pin high 4
DS input voltage high VSH 1 V DS pin, VDD=6.0 V 4
DS input voltage low VSL 0.3 V DS pin, VDD=6.0 V 4
Supply voltage VDD-VSS 15 V Ta=25℃ 3
Output voltage (CMOS output) VOUT -0.3 0.3 V VSS-0.3 to VDD+0.3; Ta=25℃ (min relative to VSS, max relative to VDD) 3
Output current IOUT 50 mA Ta=25℃ 3
Power dissipation SOT23-5L PD 250 mW Ta=25℃ 3
Operating ambient temperature Topr -40 85 ℃ 3
Storage temperature Tstg -40 125 ℃ 3

CAD (KiCad official)

  • Symbol: MD6127C37
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5L (KiCad packages3D, STEP)
  • 3D model files: md6127c37-etched.step / md6127c37-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); md6127c37.step / md6127c37.glb are the bare package body.

Provenance

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

  • Datasheet: Shanghai Mingda Microelectronics datasheet (10 pp, sha256 1fab5f41f402e070, retrieved 2026-10-23, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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