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MD6127C37
Public Made by Adomby adom
Shanghai Mingda Microelectronics Monitors & Reset Circuits, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMD6127C37
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md6127c37.step/md6127c37.glbare 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, primaryclaude-sonnet-5-5(text), consensusclaude-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).