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MD6127C39
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Shanghai Mingda Microelectronics Supervisor And Reset ICs, SOT-23-5L. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MD6127C39
Shanghai Mingda Microelectronics · Supervisor And Reset ICs · SOT-23-5L
MD6127C39 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 ON/OFF switching input that must be fixed at either a low or a high level; a high level shortens the delay time. |
| 2 | VSS | power_in | Ground pin for the detector, referenced for the VDD-VSS absolute maximum rating of 15 V. |
| 3 | NC | unconnected | No connection. |
| 4 | VOUT | output | Voltage detection output; NMOS open-drain or CMOS push-pull depending on the variant, with a 50 mA maximum output current. |
| 5 | VDD | power_in | Detection voltage input and supply pin, operating from 1 V to 12 V and rated to 15 V absolute maximum versus VSS. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-23-5L |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating voltage | VDD | 1 | 12 | V | 4 | ||
| Hysteresis width | VHYS | 30 | 60 | 100 | mV | 4 | |
| Supply current | Iss | 1.2 | 5 | μA | VDD=4.5V, MD6127C27~39 | 4 | |
| Output current, N-channel output transistor | IOUT | 3 | 6 | mA | VOUT=0.5 V, VDD=2.4 V, MD6127C27~60 | 4 | |
| Output current, N-channel output transistor | IOUT | 0.75 | 1.5 | mA | VOUT=0.5 V, VDD=1.2 V, MD6127C22~60 | 4 | |
| Output current, P-channel output transistor (CMOS output products only) | IOUT | 1 | 2 | mA | VDD-VOUT=0.5 V, VDD=4.8 V, MD6127C22~39 | 4 | |
| Leakage current (N-channel open-drain products only) | ILEAK | 0.1 | μA | N-channel output transistor, VDD=10V, VOUT=10V | 4 | ||
| Delay time 1 | Td1 | 130 | 200 | 290 | ms | VDD=−VDET+1 V, DS 端子低电平 | 4 |
| Input voltage high (DS terminal) | VSH | 1 | V | DS 端子, VDD=6.0 V | 4 | ||
| Input voltage low (DS terminal) | VSL | 0.3 | V | DS 端子, VDD=6.0 V | 4 | ||
| Delay time 2 | Td2 | 110 | 220 | 330 | μs | VDD=−VDET+1 V, DS 端子高电平 | 4 |
| Detection voltage temperature coefficient | △(-VDET)/△Ta | -360 | 120 | 360 | ppm/℃ | Ta=−40°C ∼ +85°C | 4 |
| Supply voltage (VDD-VSS) | VDD, VSS | 15 | V | Ta=25℃ unless noted | 3 | ||
| Output voltage, NMOS open-drain output | VOUT | -0.3 | 15 | V | Relative to VSS (VSS -0.3 ～ VSS+15) | 3 | |
| Output voltage, CMOS output | VOUT | -0.3 | V | Relative to VSS; upper limit printed as VDD+0.3 V (VSS -0.3 ～ VDD+0.3) | 3 | ||
| Output current | IOUT | 50 | mA | 3 | |||
| Allowable power dissipation (SOT23-5L) | PD | 250 | mW | SOT23-5L | 3 | ||
| Operating ambient temperature range | Topr | -40 | 85 | ℃ | 3 | ||
| Storage ambient temperature range | Tstg | -40 | 125 | ℃ | 3 | ||
| Detection voltage (setting value) | -VDET(S) | 3.9 | V | 2 |
CAD (KiCad official)
- Symbol:
MD6127C39 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files:
md6127c39-etched.step/md6127c39-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);md6127c39.step/md6127c39.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 2026-10-20, 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-haiku-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).
# MD6127C39
**Shanghai Mingda Microelectronics** · Supervisor And Reset ICs · SOT-23-5L
MD6127C39 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 ON/OFF switching input that must be fixed at either a low or a high level; a high level shortens the delay time. |
| 2 | VSS | power_in | Ground pin for the detector, referenced for the VDD-VSS absolute maximum rating of 15 V. |
| 3 | NC | unconnected | No connection. |
| 4 | VOUT | output | Voltage detection output; NMOS open-drain or CMOS push-pull depending on the variant, with a 50 mA maximum output current. |
| 5 | VDD | power_in | Detection voltage input and supply pin, operating from 1 V to 12 V and rated to 15 V absolute maximum versus VSS. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shanghai Mingda Microelectronics |
| Package | SOT-23-5L |
| Category | Power Management (PMIC) |
| 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 |
|---|---|---|---|---|---|---|---|
| Operating voltage | VDD | 1 | | 12 | V | | 4 |
| Hysteresis width | VHYS | 30 | 60 | 100 | mV | | 4 |
| Supply current | Iss | | 1.2 | 5 | μA | VDD=4.5V, MD6127C27~39 | 4 |
| Output current, N-channel output transistor | IOUT | 3 | 6 | | mA | VOUT=0.5 V, VDD=2.4 V, MD6127C27~60 | 4 |
| Output current, N-channel output transistor | IOUT | 0.75 | 1.5 | | mA | VOUT=0.5 V, VDD=1.2 V, MD6127C22~60 | 4 |
| Output current, P-channel output transistor (CMOS output products only) | IOUT | 1 | 2 | | mA | VDD-VOUT=0.5 V, VDD=4.8 V, MD6127C22~39 | 4 |
| Leakage current (N-channel open-drain products only) | ILEAK | | | 0.1 | μA | N-channel output transistor, VDD=10V, VOUT=10V | 4 |
| Delay time 1 | Td1 | 130 | 200 | 290 | ms | VDD=−VDET+1 V, DS 端子低电平 | 4 |
| Input voltage high (DS terminal) | VSH | 1 | | | V | DS 端子, VDD=6.0 V | 4 |
| Input voltage low (DS terminal) | VSL | | | 0.3 | V | DS 端子, VDD=6.0 V | 4 |
| Delay time 2 | Td2 | 110 | 220 | 330 | μs | VDD=−VDET+1 V, DS 端子高电平 | 4 |
| Detection voltage temperature coefficient | △(-VDET)/△Ta | -360 | 120 | 360 | ppm/℃ | Ta=−40°C ∼ +85°C | 4 |
| Supply voltage (VDD-VSS) | VDD, VSS | | | 15 | V | Ta=25℃ unless noted | 3 |
| Output voltage, NMOS open-drain output | VOUT | -0.3 | | 15 | V | Relative to VSS (VSS -0.3 ～ VSS+15) | 3 |
| Output voltage, CMOS output | VOUT | -0.3 | | | V | Relative to VSS; upper limit printed as VDD+0.3 V (VSS -0.3 ～ VDD+0.3) | 3 |
| Output current | IOUT | | | 50 | mA | | 3 |
| Allowable power dissipation (SOT23-5L) | PD | | | 250 | mW | SOT23-5L | 3 |
| Operating ambient temperature range | Topr | -40 | | 85 | ℃ | | 3 |
| Storage ambient temperature range | Tstg | -40 | | 125 | ℃ | | 3 |
| Detection voltage (setting value) | -VDET(S) | | 3.9 | | V | | 2 |
## CAD (KiCad official)
- Symbol: `MD6127C39`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5L (KiCad packages3D, STEP)
- 3D model files: `md6127c39-etched.step` / `md6127c39-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `md6127c39.step` / `md6127c39.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Shanghai Mingda Microelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590225588129861632) (10 pp, sha256 `1fab5f41f402e070`, retrieved 2026-10-20, 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-haiku-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](docs/md6127c39-datasheet.pdf)