component
MMUN2235
Public Made by Adomby adom
WPMtek(Wei Pan Microelectronics) Digital Transistors, SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MMUN2235
WPMtek(Wei Pan Microelectronics) · Digital Transistors · SOT-23
MMUN2235 from WPMtek(Wei Pan Microelectronics), in a SOT-23. 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 | Base | input | Base (input) of the NPN bias-resistor transistor, connected through R1 (2.2 kΩ for MMUN2235) with R2 (47 kΩ) to the emitter. |
| 2 | Emitter | passive | Emitter (common) of the NPN bias-resistor transistor, the ground-side reference for the circuit. |
| 3 | Collector | passive | Collector (output) of the NPN bias-resistor transistor, rated VCEO 50 V and IC 100 mA maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WPMtek(Wei Pan Microelectronics) |
| Package | SOT-23 |
| Category | Triode/MOS Tube/Transistor |
| 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 |
|---|---|---|---|---|---|---|---|
| Collector Base Voltage | VCBO | 50 | V | Ta = 25 °C | 1 | ||
| Collector Emitter Voltage | VCEO | 50 | V | Ta = 25 °C | 1 | ||
| Collector Current | IC | 100 | mA | Ta = 25 °C | 1 | ||
| Total Power Dissipation | Ptot | 200 | mW | Ta = 25 °C | 1 | ||
| Junction Temperature | Tj | 150 | °C | Ta = 25 °C | 1 | ||
| Storage Temperature Range | TS | -55 | 150 | °C | Ta = 25 °C | 1 | |
| DC Current Gain | hFE | 80 | VCE = 10 V, IC = 5 mA | 2 | |||
| Collector Base Cutoff Current | ICBO | 100 | nA | VCB = 50 V | 2 | ||
| Collector Emitter Cutoff Current | ICEO | 500 | nA | VCE = 50 V | 2 | ||
| Emitter Base Cutoff Current | IEBO | 0.2 | mA | VEB = 6 V | 2 | ||
| Collector Base Breakdown Voltage | V(BR)CBO | 50 | V | IC = 10 A | 2 | ||
| Collector Emitter Breakdown Voltage | V(BR)CEO | 50 | V | IC = 2 mA | 2 | ||
| Collector Emitter Saturation Voltage | VCEsat | 0.25 | V | IC = 10 mA, IB = 1 mA | 2 | ||
| Output Voltage (on) | VOL | 0.2 | V | VCC = 5 V, VB = 2.5 V, RL = 1 K | 3 | ||
| Resistor Ratio | R1/R2 | 0.038 | 0.056 | 3 |
CAD (KiCad official)
- Symbol:
MMUN2235 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files:
mmun2235-etched.step/mmun2235-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mmun2235.step/mmun2235.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WPMtek(Wei Pan Microelectronics) datasheet (10 pp, sha256
2ecbf6b62cf562b7, retrieved 2026-10-31, tier: lcsc) - 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).
# MMUN2235
**WPMtek(Wei Pan Microelectronics)** · Digital Transistors · SOT-23
MMUN2235 from WPMtek(Wei Pan Microelectronics), in a SOT-23. 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 | Base | input | Base (input) of the NPN bias-resistor transistor, connected through R1 (2.2 kΩ for MMUN2235) with R2 (47 kΩ) to the emitter. |
| 2 | Emitter | passive | Emitter (common) of the NPN bias-resistor transistor, the ground-side reference for the circuit. |
| 3 | Collector | passive | Collector (output) of the NPN bias-resistor transistor, rated VCEO 50 V and IC 100 mA maximum. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WPMtek(Wei Pan Microelectronics) |
| Package | SOT-23 |
| Category | Triode/MOS Tube/Transistor |
| 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 |
|---|---|---|---|---|---|---|---|
| Collector Base Voltage | VCBO | | | 50 | V | Ta = 25 °C | 1 |
| Collector Emitter Voltage | VCEO | | | 50 | V | Ta = 25 °C | 1 |
| Collector Current | IC | | | 100 | mA | Ta = 25 °C | 1 |
| Total Power Dissipation | Ptot | | | 200 | mW | Ta = 25 °C | 1 |
| Junction Temperature | Tj | | | 150 | °C | Ta = 25 °C | 1 |
| Storage Temperature Range | TS | -55 | | 150 | °C | Ta = 25 °C | 1 |
| DC Current Gain | hFE | 80 | | | | VCE = 10 V, IC = 5 mA | 2 |
| Collector Base Cutoff Current | ICBO | | | 100 | nA | VCB = 50 V | 2 |
| Collector Emitter Cutoff Current | ICEO | | | 500 | nA | VCE = 50 V | 2 |
| Emitter Base Cutoff Current | IEBO | | | 0.2 | mA | VEB = 6 V | 2 |
| Collector Base Breakdown Voltage | V(BR)CBO | 50 | | | V | IC = 10 A | 2 |
| Collector Emitter Breakdown Voltage | V(BR)CEO | 50 | | | V | IC = 2 mA | 2 |
| Collector Emitter Saturation Voltage | VCEsat | | | 0.25 | V | IC = 10 mA, IB = 1 mA | 2 |
| Output Voltage (on) | VOL | | | 0.2 | V | VCC = 5 V, VB = 2.5 V, RL = 1 K | 3 |
| Resistor Ratio | R1/R2 | 0.038 | | 0.056 | | | 3 |
## CAD (KiCad official)
- Symbol: `MMUN2235`
- Footprint: `Package_TO_SOT_SMD:SOT-23`
- 3D model: SOT-23 (KiCad packages3D, STEP)
- 3D model files: `mmun2235-etched.step` / `mmun2235-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `mmun2235.step` / `mmun2235.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [WPMtek(Wei Pan Microelectronics) datasheet](docs/mmun2235-datasheet.pdf) (10 pp, sha256 `2ecbf6b62cf562b7`, retrieved 2026-10-31, tier: lcsc)
- **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](docs/mmun2235-datasheet.pdf)