SKU: 40027033501

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

Sale price$98.10 Regular price$109.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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: 40027033501

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 1713 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Marissa
Port Orchard, US
★★★★★ 5
FINALLY!!! Ordering more!
Size: 6, Color: Lapis Sights
Finally! Normal jeans for my little! Not stretchy not skinny not “jeggings,” normal, jean material that FIT HER PERFECT!!! She is 5, taller than most her age and solid so I have to buy her in tops and outfits usually 6/7. Although she's tall, these sizes in pants are to large for her waist. I ordered a 6 in these and could not be happier!! They perfectly fit her waist, hug her bottom just right, and sit right at the bottom of her foot. I will order more!! I have different styles coming from Levi, I hope those fit just as well. Will update with pics
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2026
J
Verified Purchase
Julie Fraley
Fort Morgan, US
★★★★★ 5
Levi girls jeans
Size: 6, Color: Lapis Awe
Great fit. Have bought multiple.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
K
Verified Purchase
Kindle Customer
Pawtucket, US
★★★★★ 5
Jeanw
Size: 12, Color: Lapis Awe
Nice jeans, just wish I bought larger size. Daughter growing like weed, lol
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
J
Verified Purchase
joshua suber
Waukegan, US
★★★★★ 5
Worth purchasing
Size: 16, Color: Legacy
Great quality. Very satisfied how they looked on my daughter. True to size. They looked very nive ok my daughter. Good material.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 3, 2025
M
Verified Purchase
Mrs. Hamilton
Pawtucket, US
★★★★★ 4
Good fit
Size: 12, Color: Lapis Sights
Fit to size. The waist has adjustable band which is good for a growing child. Would buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2025

recommand products