component
EL3H7
Public Made by Adomby adom
Everlight Elec Transistor, Photovoltaic Output Optoisolators, 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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Contents
README
markdownEL3H7
Everlight Elec · Transistor, Photovoltaic Output Optoisolators · SSOP-4
EL3H7 from Everlight 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 | passive | Infrared emitting diode anode; the datasheet gives a forward current limit of 50 mA (IF), a peak forward current of 1 A (1 µs pulse), and a reverse voltage of 6 V, and states the device is not designed for reverse operation. |
| 2 | Cathode | passive | Infrared emitting diode cathode; the datasheet states the device is not designed for reverse operation, with reverse voltage (VR) of 6 V rated only for the reverse-current test condition. |
| 3 | Emitter | passive | Phototransistor emitter; the emitter-collector voltage is rated at 7 V (VECO) with a minimum emitter-collector breakdown voltage of 7 V at IE = 0.1 mA. |
| 4 | Collector | passive | Phototransistor collector; the collector-emitter voltage is rated at 80 V (VCEO) and the collector current at 50 mA (IC). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Everlight Elec |
| Package | SSOP-4 |
| Category | Optoisolators |
| 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 |
|---|---|---|---|---|---|---|---|
| Current transfer ratio (rank EL3H7, no rank letter) | CTR | 50 | 600 | % | IF = 5mA, VCE = 5V | 3 | |
| Forward voltage | VF | 1.2 | 1.4 | V | IF = 20mA | 3 | |
| Reverse current | IR | 10 | µA | VR = 4V | 3 | ||
| Input capacitance | Cin | 30 | 250 | pF | V = 0, f = 1kHz | 3 | |
| Collector-Emitter dark current | ICEO | 100 | nA | VCE = 20V, IF = 0mA | 3 | ||
| Collector-Emitter breakdown voltage | BVCEO | 80 | V | IC = 0.1mA | 3 | ||
| Emitter-Collector breakdown voltage | BVECO | 7 | V | IE = 0.1mA | 3 | ||
| Collector-Emitter saturation voltage | VCE(sat) | 0.1 | 0.2 | V | IF = 10mA, IC = 1mA | 3 | |
| Floating capacitance | CIO | 0.3 | 1 | pF | VIO = 0, f = 1MHz | 3 | |
| Rise time | tr | 5 | 18 | µs | VCE = 2V, IC = 2mA, RL = 100Ω | 3 | |
| Fall time | tf | 3 | 18 | µs | VCE = 2V, IC = 2mA, RL = 100Ω | 3 | |
| Forward current | IF | 50 | mA | 2 | |||
| Peak forward current | IFP | 1 | A | 1 µs pulse | 2 | ||
| Reverse voltage | VR | 6 | V | 2 | |||
| Power dissipation (input) | PD | 70 | mW | Derating 2.0 mW/°C above Ta = 90°C | 2 | ||
| Power dissipation (output) | PC | 150 | mW | Derating 3.1 mW/°C above Ta = 70°C | 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 | AC for 1 minute, R.H. 40~60%; pins 1-2 shorted, pins 3-4 shorted | 2 | ||
| Operating temperature | TOPR | -55 | 110 | °C | 2 | ||
| Storage temperature | TSTG | -55 | 125 | °C | 2 | ||
| Soldering temperature | TSOL | 260 | °C | For 10 seconds | 2 |
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 |
|---|---|---|---|---|
| housing | PC | 1.1 (A) Maximum Body Case Temperature Profile for evaluation of Reflow Profile Note: Reference: IPC/JEDEC J-STD-020D | 12 |
CAD (KiCad official)
- Symbol:
EL3H7 - 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:
el3h7-etched.step/el3h7-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);el3h7.step/el3h7.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Everlight Elec datasheet (14 pp, sha256
cd70a6fc67be1569, retrieved 2026-10-17, tier: lcsc) - 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).