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Description
OPTEK TECHNOLOGY OPB825 Transmissive Photo Interrupter, Phototransistor, Through Hole, 4.06 mm, 50 mA, 2 VThe OPB825 series Slotted Optical Switch that consists of an infrared emitting diode and a NPN silicon phototransistor mounted in a low cost black plastic housing on opposite sides of a wide slot. OPB825 has no mounting tabs and is intended for direct insertion into PCBoards or dual in line sockets. OPB825A has one mounting tab on the phototransistor side, while OPB825B has mounting tabs on both sides (two tabs). Phototransistor switching takes place
The OPB825 series Slotted Optical Switch that consists of an infrared emitting diode and a NPN silicon phototransistor mounted in a low-cost black plastic housing on opposite sides of a wide slot. OPB825 has no mounting tabs and is intended for direct insertion into PCBoards or dual-in-line sockets. OPB825A has one mounting tab on the phototransistor side, while OPB825B has mounting tabs on both sides (two tabs). Phototransistor switching takes place whenever an opaque object passes through the slot.
- Non-contact switching
- Fast switching speed
- 0.160" (4.06mm) wide slot
- 0.300" (7.62mm) Lead spacing
Applications
Automation & Process Control, Safety, Industrial
Product details
| Gap Width | 4.06mm |
| Forward Voltage | 1.6V |
| Sensor Output | Phototransistor |
| Sensor Mounting | Through Hole |
| Forward Current If | 50mA |
| Automotive Qualification Standard | - |
| Product Range | OPB825 Series |
| Aperture Width | - |
| Reverse Voltage Vr | 2V |
Other details
| Brand | OPTEK TECHNOLOGY |
| Part Number | OPB825 |
| Quantity | Each |
| Technical Data Sheet EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 4
Good quality and soft, but not for everybody.
Color: White, Size: Queen, Color: White, Size: Queen
These pillows are super comfortable if you like thick, firm ones. I absolutely loved them, they feel high-quality and supportive, but they are very thick, and after a while, I started getting some neck pain.
That said, over time they do soften up a bit and start to mold better to your body, which helps. I’d definitely recommend them for anyone who likes big, firm pillows, but they’re probably not the best choice for people who prefer something softer or lower.
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Reviewed in the United States on October 15, 2025
★★★★★ 5
Soft & support
Color: White, Size: Queen
These pillows are perfect! I was looking for a cushy, lower profile pillow for side sleeping. So soft, supportive and comfortable! I could not believe the high quality at such an affordable price! They are queen size, so I need to purchase new longer pillow cases.
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Reviewed in the United States on March 16, 2026
★★★★★ 5
viewstar - Juego de 2 almohadas
Color: White, Size: Queen, Color: White, Size: Queen
Muy buenas y cómodas solo la tengo hace 2 días ojalá no se desinflan como otras que yo he comprado , pero si son comodisimas si en un mes se mantienen igual pienso comprar 2 mas
They are very good and comfortable. I’ve only had them for two days—I really hope they don't go flat like others I've bought—but they truly are extremely comfortable. If they stay just like this after a month, I plan to buy two more.
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Reviewed in the United States on May 17, 2026
★★★★★ 3
Odd, but nice pillows...
Color: White, Size: Queen
These pillows are nice, but strange for me. ..I purchased 2 in queen-size. They are slightly longer than I prefer but doable..and have an odd soft yet firm texture. When you lay the head down ..it sinks into the pillow, but each side comes up. So you have these big sort of firm soft, fluffy pillow ends on each side of your face. If you're a side sleeper, you will automatically try to punch one of the ends down a bit, for the most part, that will be useless. So you will probably end up trying to angle it a bit so that you end up sort of sleeping on the corner sections. (This was for the queen size, for me. The standard may be better.) Also, there really no cool side. If you flip it..it might feel cool for about 2 seconds, but that's it. They are very nice pillows, but I just know I will be ordering something else in the future.
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Comfy, soft, helps me sleep without pain.
Color: White, Size: Queen
These pillows are very comfy. Lately, I'd been waking up with pinched nerves in my neck and shoulders so I decided to try new pillows. I've been using these pillows for a couple of days now and I no longer have any pinched nerves. They're so comfortable to rest my head on. If I had to make one constructive criticism, its that I wish they were thicker. I know its just personal preference but I like my head to be elevated more.. however, using 2 of these pillows does the trick! Also, they come packaged really well... vacuum sealed and in a box (which is good because they sat out in the rain for 7 hours).. and they didnt have a strange odor to them. For the price, they are great.
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Reviewed in the United States on April 17, 2026
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