SKU: 9573658149

Cudy Single Mode 1.25G LC Bi-Directional SFP 20km

Sale price$125.55 Regular price$139.50
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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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Description

Cudy Single Mode 1.25G LC Bi-Directional SFP 20kmCudy's CD SFP SMB is your answer for efficient and cost effective single mode fibre deployments! These bi directional modules redefine connectivity standards with a powerful design optimised for 1. 25 Gbps transmission over distances of up to 20km. The CD SFP SMB modules are sold as a pair and feature a smart SFP package with LC connectors, ensuring cross vendor compatibility. What distinguishes them is their novel application of bi directional

Cudy's CD-SFP-SMB is your answer for efficient and cost-effective single-mode fibre deployments! These bi-directional modules redefine connectivity standards with a powerful design optimised for 1.25 Gbps transmission over distances of up to 20km.

The CD-SFP-SMB modules are sold as a pair and feature a smart SFP package with LC connectors, ensuring cross-vendor compatibility. What distinguishes them is their novel application of bi-directional technology, which enables duplex transmission on a single fibre by utilising two distinct wavelengths for TX and RX on the same optical strand. This not only improves performance but also significantly lowers installation costs.

Choose between the SM100GSB-20A with a 1310nm FP laser and a 1550nm PIN photodetector or the SM100GSB-20B with a 1550nm DFB laser and a 1310nm PIN photodetector to meet your specific requirements.

These modules provide dependable performance because they are powered by a single +3.3V power supply and have an LVPECL-compatible data input/output interface. The CD-SFP-SMB provides a strong and secure connection thanks to its low EMI and excellent ESD protection. These modules prioritise environmental sustainability while adhering to RoHS and SFF8472 standards.

FEATURES:

  • SFP package with LC connector
  • SM100GSB-20A: 1310nm FP Laser and 1550nm PIN photodetector
  • SM100GSB-20B: 1550nm DFB Laser and 1310nm PIN photodetector
  • Up to 20 km transmission on SMF
  • +3.3V single power supply
  • LVPECL-compatible data input/output interface
  • Low EMI and excellent ESD protection
  • Compatible with RoHS
  • Compatible with SFF8472

SPECIFICATIONS:

  • Ethernet Channel Speed_ 1.25 GB/s
  • Fibre Channel Speed_ 1.06 Gb/s
  • Form Factor_ SFP (BiDi)
  • Mode: Single Mode
  • Supported Distance_ 20km
  • Wavelength: 1310nm / 1550nm
  • Optical Eye Diagram_ IEEE 802.3z and ANSI Fibre Channel Compatible
  • Input Differential Impendence (Min) (Max): 90, 110 Ohm
  • Data Input Swing Differential (Min) (Max): 500, 2400 mV
  • Output differential impendence (Typ): 100 Ohm
  • Data Input Swing Differential (Min) (Max): 370, 2000 mV
  • Supply Voltage (Min) (Max): 3.15, 3.45 V
  • Operating Case Temperature (Min) (Max): 0, 70 ℃
  • Voltage: 3-15 ~ 3.45 V
  • Bias Current_ 10 ~ 80 mA
  • Tx Power_ -9 ~ -3 dBm
  • Rx Power_ -26~-3 dBm

WHAT’S IN THE BOX_

  • Cudy 1.25Gbps BIDI SFP Optical Transceiver 20Km DDM x1
  • Installation Guide x1
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 9573658149

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4.6 ★★★★★
Based on 19 reviews
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AliciaP1821
Lexington, US
★★★★★ 5
Perfect Fit for My Tesla!
Size: Upgrade - For Model Y Juniper/Model Y/Model 3
I’ve tried a few phone mounts for my Tesla, but this one stands out. It attaches securely without any wobbling, and the magnet is strong enough to hold my phone even on bumpy roads. The sleek design blends in well with the car’s interior, making it look like it was built for it. Installation was super easy—took just a few seconds. The charging feature works great too, so I don’t have to fumble with cables while driving. If you’re looking for a reliable, stylish phone mount for your Tesla, this one is definitely worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2025
J
Verified Purchase
Jaimin Patel
San Leandro, US
★★★★★ 5
Good mount for iPhone in Tesla
Size: Upgrade - For Model Y Juniper/Model Y/Model 3
Easy to use mount. Helped provide additional visibility while driving. Sticks really really strong to the surface. Also have an option of ac vent mount instead of sticking it on dash or back of screen. Strong durable material not plastic.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2025
G
Verified Purchase
Gabriel
Natrona Heights, US
★★★★★ 5
Versatile quality product.
Size: Upgrade - For Model Y Juniper/Model Y/Model 3, Size: Upgrade - For Model Y Juniper/Model Y/Model 3
The beauty of this phone holder in my Tesla Y is that it can be moved from corner to corner based on needs without worry of sticky glue issues… current setting is lower right corner and happy with things so far. Will absolutely update if my feelings change but so far I’m stoked with the purchase. Also the discount didn’t hurt either $$
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Reviewed in the United States on July 29, 2025
D
Verified Purchase
diane gammons
Natrona Heights, US
★★★★★ 5
Almost perfect
Style: Screen+Charger
Solid mount. I’ve tried other ones but they don’t sit as nicely as this one. It also has a lot of adjustments to allow for using it any way you need it to so it is very versatile. The magnet strength is really good and holds my phone really well. Sometimes it feels too strong which I guess is a good thing. The charging works well but I wish the cable was a little longer
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Reviewed in the United States on April 21, 2026
J
Verified Purchase
Jin
Battle Creek, US
★★★★★ 5
Great Phone Mount
Style: Screen+Charger
Works great! It’s been a fantastic upgrade for my car. The installation was quick and seamless, and it fits perfectly with the Tesla interior. The wireless charging stays fast and stable. I highly recommend it.
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Reviewed in the United States on May 13, 2026

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