component
SL3H7C
Public Made by Adomby adom
Slkor(SLKORMICRO Elec.) Optocouplers - Phototransistor Output, SSOP-4. 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
markdownSL3H7C
Slkor(SLKORMICRO Elec.) · Optocouplers - Phototransistor Output · SSOP-4
SL3H7C from Slkor(SLKORMICRO Elec.), in a SSOP-4. 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 | input | LED anode of the input GaAs infrared emitting diode; forward current IF max 50 mA (1000 mA peak at 1 us pulse), VF typ 1.2 V at IF=20 mA. |
| 2 | Cathode | passive | LED cathode of the input infrared diode, returned to the input-side ground (GND1); reverse voltage VR max 6 V. |
| 3 | Emitter | passive | Phototransistor emitter, connected to the output-side GND; emitter-collector voltage VECO max 7 V. |
| 4 | Collector | passive | Phototransistor collector, pulled to VCC through a load resistor; VCEO max 80 V and collector current IC max 50 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Slkor(SLKORMICRO Elec.) |
| Package | SSOP-4 |
| Category | Optocoupler/LED/Digital Tube/Photoelectric Device |
| Pins | 4 |
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 Current | IF | 50 | mA | 2 | |||
| Peak forward current (1us, pulse) | IFP | 1000 | mA | 1us, pulse | 2 | ||
| Reverse Voltage | VR | 6 | V | 2 | |||
| Power Dissipation | PD | 70 | mW | 2 | |||
| Collector Power Dissipation | PC | 150 | mW | 2 | |||
| Collector Current | IC | 50 | mA | 2 | |||
| Collector-Emitter Voltage | VCEO | 80 | V | 2 | |||
| Emitter-Collector Voltage | VECO | 7 | V | 2 | |||
| Total Power Dissipation | Ptot | 200 | mW | 2 | |||
| Isolation Voltage | Viso | 3750 | Vrms | 2 | |||
| Operating Temperature | Topr | -55 | 110 | ℃ | 2 | ||
| Storage Temperature | Tstg | -55 | 125 | ℃ | 2 | ||
| Soldering Temperature | Tsol | 260 | ℃ | 2 | |||
| Forward Voltage | VF | 1.2 | 1.4 | V | IF=20mA | 3 | |
| Reverse Current | IR | 10 | µA | VR=4V | 3 | ||
| Terminal Capacitance | Ct | 30 | 250 | pF | V=0, F=1KHz | 3 | |
| Collector Dark Current | ICEO | 100 | nA | VCE=20V, IF=0 | 3 | ||
| Collector-Emitter Breakdown Voltage | BVCEO | 80 | V | IC=0.1mA, IF=0 | 3 | ||
| Emitter-Collector Voltage | BVECO | 7 | V | IE=0.01mA, IF=0 | 3 | ||
| Current Transfer Ratio | CTR | 80 | 600 | % | IF=5mA, VCE=5V | 3 | |
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.1 | 0.2 | V | IF=10mA, IC=1mA | 3 | |
| Isolation capacitance | CISO | 0.3 | 1 | pF | V=0, F=1MHz | 3 | |
| Rise Time | Tr | 3 | 18 | µs | VCE=2V, IC=2mA, RL=100Ω | 3 | |
| Fall Time | Tf | 2 | 18 | µs | VCE=2V, IC=2mA, RL=100Ω | 3 | |
| Power dissipation derating factor (above Ta = 90°C) | PDD | 2 | mW/°C | above Ta = 90°C | 2 |
CAD (KiCad official)
- Symbol:
SL3H7C - Footprint:
Package_SO:SSOP-4_4.4x2.6mm_P1.27mm - 3D model: SSOP-4, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.75 mm nominal SSOP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files:
sl3h7c-etched.step/sl3h7c-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sl3h7c.step/sl3h7c.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Slkor(SLKORMICRO Elec.) datasheet (7 pp, sha256
15be8667e9e8c8a4, retrieved 2026-10-22, 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).