component
AT4N28-CUH-D
Public Made by Adomby adom
AOTE Transistor, Photovoltaic Output Optoisolators, DIP-6. 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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Contents
README
markdownAT4N28-CUH-D
AOTE · Transistor, Photovoltaic Output Optoisolators · DIP-6
AT4N28-CUH-D from AOTE, in a DIP-6. 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 | Anode | passive | Anode of the input infrared LED; forward current IF is 5 to 15 mA recommended, 50 mA absolute maximum. |
| 2 | Cathode | passive | Cathode of the input infrared LED; reverse voltage must not exceed 6 V. |
| 3 | NC | unconnected | No internal connection. |
| 4 | Emitter | passive | Emitter of the output phototransistor; emitter-collector voltage VECO is 7 V maximum. |
| 5 | Collector | passive | Collector of the output phototransistor; VCEO is 30 V absolute maximum and collector current IC is 100 mA maximum. |
| 6 | Base | passive | Base of the output phototransistor; collector-base voltage VCBO is 70 V maximum. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | AOTE |
| Package | DIP-6 |
| Category | Optoisolators |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Forward Voltage | VF | 1.2 | 1.5 | V | IF =10mA | 4 | |
| Reverse Current | IR | 10 | uA | VR =3V | 4 | ||
| Collector Dark Current | ICEO | 50 | nA | VCE=10V | 4 | ||
| Collector-Base Breakdown Voltage | BVCBO | 70 | V | IB =0.1mA, IF =0 | 4 | ||
| Collector-Emitter Breakdown Voltage | BVCEO | 30 | V | IC =0.1mA, IF =0 | 4 | ||
| Emitter-Collector Breakdown Voltage | BVECO | 7 | V | IE =0.01mA, IF =0 | 4 | ||
| Current Transfer Ratio (4N27, 28) | CTR | 10 | % | IF=10mA, VCE=10V | 4 | ||
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.3 | V | IF=50mA, IC =2mA | 4 | ||
| Isolation Capacitance | CISO | 1 | 2.5 | pF | V=0, F=1MHz | 4 | |
| Forward Current | IF | 50 | mA | Ta=25℃ | 3 | ||
| Peak Forward Current | IFP | 1000 | mA | 1us, pulse | 3 | ||
| Reverse Voltage | VR | 6 | V | Ta=25℃ | 3 | ||
| Input Power Dissipation | PD | 70 | mW | Ta=25℃ | 3 | ||
| Collector Power Dissipation | PC | 300 | mW | Ta=25℃ | 3 | ||
| Collector Current | IC | 100 | mA | Ta=25℃ | 3 | ||
| Collector-Base Voltage | VCBO | 70 | V | Ta=25℃ | 3 | ||
| Collector-Emitter Voltage | VCEO | 30 | V | Ta=25℃ | 3 | ||
| Emitter-Collector Voltage | VECO | 7 | V | Ta=25℃ | 3 | ||
| Isolation Voltage | Viso | 5000 | Vrms | Ta=25℃ | 3 | ||
| Operating Temperature | Topr | -55 | 110 | ℃ | 3 | ||
| Storage Temperature | Tstg | -55 | 125 | ℃ | 3 | ||
| Soldering Temperature | Tsol | 260 | ℃ | 3 | |||
| Forward Current (recommended) | IF | 5 | 15 | mA | 3 | ||
| Collector-Emitter Voltage (recommended) | VCEO | 5 | 70 | V | 3 | ||
| Collector Current (recommended) | IC | 5 | 75 | mA | 3 | ||
| Terminal Capacitance | Ct | 50 | pF | V=0, F=1KHz | 4 | ||
| Rise Time | Tr | 4 | µs | VCE=10V, IC =2mA, RL =100Ω | 4 | ||
| Fall Time | Tf | 3 | µs | VCE=10V, IC =2mA, RL =100Ω | 4 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | Copper | ③ 框架类型 Lead Frame（Cu: 铜框架 Copper） | 8 |
CAD (KiCad official)
- Symbol:
AT4N28-CUH-D - Footprint:
Package_DIP:DIP-6_W7.62mm - 3D model: DIP-6 (KiCad packages3D, STEP)
- 3D model files:
at4n28-cuh-d-etched.step/at4n28-cuh-d-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);at4n28-cuh-d.step/at4n28-cuh-d.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: AOTE datasheet (12 pp, sha256
39e9c8c142f6056a, retrieved 2026-10-24, 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+vision), consensusclaude-opus-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).