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HT7039-1
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UMW Monitors & Reset Circuits, SOT-89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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HT7039-1
UMW · Monitors & Reset Circuits · SOT-89-3
HT7039-1 from UMW, in a SOT-89-3. 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 | OUT | output | Chip output; the output voltage is limited to GND-0.3V to VDD+0.3V and the output sink current IOL is 2mA minimum at VOUT=0.2V (page 4 spec table). |
| 2 | VDD | power_in | Chip input supply; the operating voltage range is 1.5V to 12V and the absolute maximum input voltage is 15V. |
| 3 | GND | power_in | Chip ground reference; all voltage limits, including the output voltage range GND-0.3V to VDD+0.3V, are referenced to this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOT-89-3 |
| Category | Power Management ICs |
| Pins | 3 |
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 | 3.783 | 3.9 | 4.017 | V | TA=25°C | 6 |
| Operating voltage | VDD | 1.5 | 12 | V | 6 | ||
| Temperature coefficient of detection voltage | ΔVDET/TA | -0.9 | 0.9 | mV/°C | 0°C≤TA≤70°C | 6 | |
| Input voltage | VDD | 15 | V | 3 | |||
| Maximum power dissipation | PD | 400 | mW | 3 | |||
| Operating temperature range | Tw | -40 | 85 | °C | 3 | ||
| Storage temperature range | Tc | -50 | 125 | °C | 3 | ||
| Soldering temperature | Th | 260 | °C | 10s | 3 |
CAD (KiCad official)
- Symbol:
HT7039-1 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
ht7039-1-etched.step/ht7039-1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ht7039-1.step/ht7039-1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UMW datasheet (12 pp, sha256
ca4a5b03cf717e3e, retrieved 2026-10-26, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed (audit)), 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).
# HT7039-1
**UMW** · Monitors & Reset Circuits · SOT-89-3
HT7039-1 from UMW, in a SOT-89-3. 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 | OUT | output | Chip output; the output voltage is limited to GND-0.3V to VDD+0.3V and the output sink current IOL is 2mA minimum at VOUT=0.2V (page 4 spec table). |
| 2 | VDD | power_in | Chip input supply; the operating voltage range is 1.5V to 12V and the absolute maximum input voltage is 15V. |
| 3 | GND | power_in | Chip ground reference; all voltage limits, including the output voltage range GND-0.3V to VDD+0.3V, are referenced to this pin. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UMW |
| Package | SOT-89-3 |
| Category | Power Management ICs |
| Pins | 3 |
## 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 | 3.783 | 3.9 | 4.017 | V | TA=25°C | 6 |
| Operating voltage | VDD | 1.5 | | 12 | V | | 6 |
| Temperature coefficient of detection voltage | ΔVDET/TA | -0.9 | | 0.9 | mV/°C | 0°C≤TA≤70°C | 6 |
| Input voltage | VDD | | | 15 | V | | 3 |
| Maximum power dissipation | PD | | | 400 | mW | | 3 |
| Operating temperature range | Tw | -40 | | 85 | °C | | 3 |
| Storage temperature range | Tc | -50 | | 125 | °C | | 3 |
| Soldering temperature | Th | | | 260 | °C | 10s | 3 |
## CAD (KiCad official)
- Symbol: `HT7039-1`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files: `ht7039-1-etched.step` / `ht7039-1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ht7039-1.step` / `ht7039-1.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [UMW datasheet](docs/ht7039-1-datasheet.pdf) (12 pp, sha256 `ca4a5b03cf717e3e`, retrieved 2026-10-26, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed (audit)), 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/ht7039-1-datasheet.pdf)