

Overview
The ILQ1 is a transistor, Photovoltaic Output Optoisolator made by Vishay Intertechnology in a DIP-16 package with 16 pins. -40℃~+100℃ 1.25V 1.4us 1.9us 20% 250mW 300% 4 5.3kV 50V 50mA 60mA 6V Phototransistor DIP-16 Transistor, Photovoltaic Output Optoisolators ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:ILQ1, from EasyEDA) and its footprint (Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C5334332). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
14- Current Transfer Ratio (CTR) Maximum/Saturation Value
- 300%
- Current Transfer Ratio (CTR) Minimum
- 20%
- Fall time
- 1.4us
- Forward Current(If)
- 60mA
- Isolation Voltage(Vrms)
- 5.3kV
- Load Voltage
- 50V
- Number of Outputs
- 4
- Operating Temperature
- -40℃~+100℃
- Output Current
- 50mA
- Output Type
- Phototransistor
- Reverse Voltage
- 6V
- Rise time
- 1.9us
- Total Power Dissipation(Pd)
- 250mW
- Voltage - Forward(Vf)
- 1.25V
Order codes
1- ILQ1LCSC C5334332
Pinout
16| Pin | Name | Type |
|---|---|---|
| 1 | Anode | Unspecified |
| 2 | Cathode | Unspecified |
| 3 | Cathode | Unspecified |
| 4 | Anode | Unspecified |
| 5 | Anode | Unspecified |
| 6 | Cathode | Unspecified |
| 7 | Cathode | Unspecified |
| 8 | Anode | Unspecified |
| 9 | Emitter | Unspecified |
| 10 | Collector | Unspecified |
| 11 | Collector | Unspecified |
| 12 | Emitter | Unspecified |
| 13 | Emitter | Unspecified |
| 14 | Collector | Unspecified |
| 15 | Collector | Unspecified |
| 16 | Emitter | Unspecified |
Open-source boards using it
All 1- 2 layers34.6 × 38 mm

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<iframe src="https://pcbkit.io/embed/parts/vishay/ILQ1" title="ILQ1 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/vishay/ILQ1.jpg" alt="ILQ1" width="1200" height="900">[](https://pcbkit.io/parts/vishay/ILQ1)Questions
Is there a KiCad symbol and footprint for the ILQ1?
Yes. The symbol is EasyEDA_Cloud:ILQ1 and the footprint Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ILQ1?
DIP-16, with 16 pins. Its footprint is drawn on this page.
Where is the ILQ1 datasheet?
Vishay Intertechnology publishes it: the Datasheet link on this page opens it.
Where can I order the ILQ1?
JLCPCB lists it as part C5334332, with 0 in stock; the sellers' links on this page open their listings.
What can replace the ILQ1?
Parts like it in the library: the TLP521-4(GB,F) by Toshiba, the ACPL-844-000E by Broadcom Limited, the ILQ615-2 by Vishay Intertechnology and the ILQ621 by Vishay Intertechnology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ILQ1?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8TLP521-4(GB,F)
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