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Description
HFD4-4.5Subminiature Signal Relay, Form 2C, VCoil= 4. 5V DC, IMax Switching= 2A , RCoil= 145, PCB, in Vertical Case Overview Features Specification Model HFD4 4,5V Brand Hongfa Contact Form Form 2C Size Category Submini Size 10x6. 5x5. 4mm Termination PCB Coil Rated Voltage 4. 5V AC DC Voltage DC Max. Switching Current 2A Electrical Rating 2A 30VDC Coil Power 140mW Power Coil Resistance 145 Isolation Voltage 1KV Contact Material AgNi + Au plated Pin Layout
Subminiature Signal Relay, Form 2C, VCoil= 4.5V DC, IMax Switching= 2A , RCoil= 145Ω, PCB, in Vertical Case
Overview
Features
Specification
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| Model | HFD4-4,5V |
| Brand | Hongfa |
| Contact Form | Form 2C |
| Size Category | Submini |
| Size | 10x6.5x5.4mm |
| Termination | PCB |
| Coil Rated Voltage | 4.5V |
| AC/DC Voltage | DC |
| Max. Switching Current | 2A |
| Electrical Rating | 2A 30VDC |
| Coil Power | 140mW Power |
| Coil Resistance | 145Ω |
| Isolation Voltage | 1KV |
| Contact Material | AgNi + Au plated |
| Pin Layout | DIL |
| No. of Pins | 8 Pin(s) |
| No. of Poles | 2 Pole(s) |
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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
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.0 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 1
If you love your dog…don’t buy this.
Color: Orange
We have a nonaggressive English cocker. She opened the ball every time she played with it. And yes, we are closing it as hard as we can. I do not recommend this toy for any dog! This is a dangerous toy for a dog that is not supervised.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
★★★★★ 4
Keeps your dog busy
Color: Blue
Good toy to keep your dog busy. Make sure you check it periodically to ensure it stays together.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
★★★★★ 5
dog ball
Color: Blue
This ball is perfect for keeping my dog active and entertained. It's made of strong, durable material, ideal for games of fetch. It doesn't break easily and is light enough for him to carry in his mouth without any problem.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
★★★★★ 2
Fun but not for rough play.
Color: Orange
The ball contented our “golden” Jaxson for about 15 minutes. He then thought it was a regular ball and it’s just a little delicate for a big dog. I just wrote it off as a loss. Great idea but should be more durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
★★★★★ 5
Long lasting charge!
Color: Orange
My 50 pound goldendoodle absolutely loves this ball. It keeps a charge for a long time. It turns off
When it’s not being used and we play with it every day.!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
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