• 25g SFP28 Dac 1m Passive Direct Attach Cable
  • 25g SFP28 Dac 1m Passive Direct Attach Cable
  • 25g SFP28 Dac 1m Passive Direct Attach Cable
  • 25g SFP28 Dac 1m Passive Direct Attach Cable
  • 25g SFP28 Dac 1m Passive Direct Attach Cable
  • 25g SFP28 Dac 1m Passive Direct Attach Cable

25g SFP28 Dac 1m Passive Direct Attach Cable

Application: Local Communication Cable
Conductor Material: Copper
Cover Material: PVC
Material Shape: Round Wire
Conductor Type: Stranded
Certification: CE, RoHS, CCC, UL
Samples:
US$ 38/Piece 1 Piece(Min.Order)
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Customization:
Diamond Member Since 2022

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  • Overview
  • Product Description
  • Product Parameters
  • Factory picture
  • Certifications
  • Company Profile
  • Our Advantages
  • FAQ
Overview

Basic Info.

Model NO.
SFP28-25G-CU1M
Brand
Kolorapus
Length
Optional
Customization
Support
Transport Package
Carton
Trademark
Kolorapus
Origin
China
HS Code
741300000

Product Description

Product Description

General Description

SFP28 Direct Attach Cables are compliant with SFF-8432 and SFF-8402 specifications. Various choices of wire gauge are available from 30 to 26 AWG with various choices of cable length (up to 5m).

Features

  • Up to 25.78125 Gbps data rate
  • Up to 5 meter transmission
  • Hot-pluggable SFP 20PIN footprint
  • Improved Pluggable Form Factor(IPF)
compliant for enhanced EMI/EMC performance
  • Compatible to SFP28 MSA
  • Compatible to SFF-8402 and SFF-8432
  • Temperature Range: 0~ 70 °C
  • RoHS Compatible
 Benefits
  • Cost-effective copper solution
  • Lowest total system power solution
  • Lowest total system EMI solution
  • Optimized design for Signal Integrity
 Applications
  • 25G Ethernet
 Product Description
  • The SFP28 passive cable assemblies are high performance, cost effective I/O solutions for 25G Ethernet. SFP28 copper cables allow hardware manufactures to achieve high port density, configurability and utilization at a very low cost and reduced power budget
Product Parameters

High Speed Characteristics

Parameter Symbol Min Typical Max Unit Note
Differential Impedance TDR 90 100 110 Ω  
Insertion loss SDD21 -22.48     dB At 12.8906 GHz
Differential Return Loss SDD11
SDD22
    See 1 dB At 0.05 to 4.1 GHz
    See 2 dB At 4.1 to 19 GHz
Common-mode to common-mode output return loss SCC11
SCC22
    -2 dB At 0.2 to 19 GHz
Differential to common-mode
return loss
SCD11
SCD22
    See 3 dB At 0.01 to 12.89 GHz
    See 4 At 12.89 to 19 GHz
Differential to common Mode
Conversion Loss
SCD21-IL     -10 dB At 0.01 to 12.89 GHz
    See 5 At 12.89 to 15.7 GHz
    -6.3 At 15.7 to 19 GHz
Notes:
  1. Reflection Coefficient given by equation SDD11(dB) < -16.5 + 2 × SQRT(f ), with f in GHz
  2. Reflection Coefficient given by equation SDD11(dB) < -10.66 + 14 × log10(f/5.5), with f in GHz
  3. Reflection Coefficient given by equation SCD11(dB) < -22 + (20/25.78)*f, with f in GHz
  4. Reflection Coefficient given by equation SCD11(dB) < -15 + (6/25.78)*f, with f in GHz
  5. Reflection Coefficient given by equation SCD21(dB) < -27 + (29/22)*f, with f in GHz
 

Pin Descriptions

SFP28 Pin Function Definition
 
Pin Logic Symbol Name/Description Notes
1   VeeT Transmitter Ground  
2 LV-TTL-O TX_Fault N/A 1
3 LV-TTL-I TX_DIS Transmitter Disable 2
4 LV-TTL-I/O SDA Tow Wire Serial Data  
5 LV-TTL-I SCL Tow Wire Serial Clock  
6   MOD_DEF0 Module present, connect to VeeT  
7 LV-TTL-I RS0 N/A 1
8 LV-TTL-O LOS LOS of Signal 2
9 LV-TTL-I RS1 N/A 1
10   VeeR Reciever Ground  
11   VeeR Reciever Ground  
12 CML-O RD- Reciever Data Inverted  
13 CML-O RD+ Reciever Data Non-Inverted  
14   VeeR Reciever Ground  
15   VccR Reciever Supply 3.3V  
16   VccT Transmitter Supply 3.3V  
17   VeeT Transmitter Ground  
  18 CML-I TD+   Transmitter Data Non-Inverted  
  19 CML_I TD-   Transmitter Data Inverted  
  20   VeeT   Transmitter Ground  
1. Signals not supported in SFP+ Copper pulled-downto VeeT with 30K ohms resistor  
2. Passive cable assemblies do not support LOS and TX_DIS  

 

 

25g SFP28 Dac 1m Passive Direct Attach Cable25g SFP28 Dac 1m Passive Direct Attach Cable

Length (m) Cable AWG
1 30
2 30
3 30/26
4 26
5 26

Regulatory Compliance

Feature Test Method Performance
Electrostatic Discharge (ESD) to the Electrical Pins
MIL-STD-883C Method 3015.7

Class 1(>2000 Volts)
Electromagnetic Interference(EMI) FCC Class B Compliant with Standards
CENELEC EN55022 Class B
CISPR22 ITE Class B

RF Immunity(RFI)

IEC61000-4-3
Typically Show no Measurable Effect from a 10V/m Field Swept from 80 to 1000MHz
RoHS Compliance RoHS Directive 2011/65/EU and it's Amendment Directives (EU) 2015/863 RoHS (EU)2015/863 compliant
REACH Compliance REACH  Regulation (EC) No 1907/2006 REACH (EC) No 1907/2006 compliant

 

Factory picture
25g SFP28 Dac 1m Passive Direct Attach Cable
25g SFP28 Dac 1m Passive Direct Attach Cable
25g SFP28 Dac 1m Passive Direct Attach Cable
25g SFP28 Dac 1m Passive Direct Attach Cable
25g SFP28 Dac 1m Passive Direct Attach Cable
25g SFP28 Dac 1m Passive Direct Attach Cable
25g SFP28 Dac 1m Passive Direct Attach Cable
25g SFP28 Dac 1m Passive Direct Attach Cable

 

Certifications
25g SFP28 Dac 1m Passive Direct Attach Cable
25g SFP28 Dac 1m Passive Direct Attach Cable
25g SFP28 Dac 1m Passive Direct Attach Cable
25g SFP28 Dac 1m Passive Direct Attach Cable

 

Company Profile

Kolorapus is a factory direct supplier specializing in the research and development of wires and cables and supporting equipment. Cables, flexible towline cables, elevator flat cables, various special cables and related accessories, such as modules, panels, distribution frames, jumpers, pigtails, couplers, photoelectric converters, cabinets, bridges, etc., products It has passed CCC, ROHS, CE and other certifications, and provided a tripartite test report issued by the national authoritative testing and certification center. The product performance fully complies with domestic and foreign and industry-related standards.

The company's management system has passed GB/T19001-2016/ISO9001:2015 quality management system certification, GB/T24001-2016/ISO14001:2015 environmental management system certification and GB/T45001-2020/ISO45001:2018 occupational health and safety management system certification. 

Our Advantages

1. With more than 20 years of industry experience,is professional in this domain.
2. The product category is complete,can meet the different needs of different customers.
3. The price is competitive in the market,can help customers save a lot of cost.
4. The quality is good, and the production process is strictly controlled.
5. Customer first, constant pursuit of innovation and excellence
6. Has a strong production capacity,is able to meet the large supply demand.
7. Have a good pre-sales and after-sales service to give customers a good shopping experience.

FAQ

1. What Kind Of Services Can We Enjoy Buy From Kolorapus.Co.Ltd.?
Arrange the shipping and delivery asap.
Inspect the quality carefully of your goods.
Good packaged avoid the damage of goods during shipping.
Make documents for you to do custom clearance,packing list and commercial invoice

2. Can We Get The Sample Order?
We welcome sample test and quality check.
Some products that are relatively small in size can be sent by express.
We need to charge the double sample fee, and don't worry the sample fee will refund you in your next further bulk order.

3. How Can You Guarantee The Quality Of The Products?
We have always placed great emphasis on quality control to make sure that excellent quality level is maintained.furthermore, every order will be checked out to guarantee the quantity and quality.

4. Which Logistics You Sent And How Long Can We Get The Goods?
It's up to your order quantities,we accept sea transportation and air transportation.

5. What Kinds Of Certificates Do You Have?
We have passed the inspection of GB,CE,UL,ROHS,3C etc,and Comprehensively guarantee the quality of the products.

6. Which Payment Method Do You Accept?
We accept T/T,Paypal and so on, any one method that we can negociate.

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