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Product Details:
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| Product: | 25G SFP28 DAC | Data Rata: | 25Gbps |
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| Cable: | Passive Twinax Copper | Wire Gauge: | 30AWG/16AWG |
| Length: | 0.5M-5M | Warranty: | 3-year |
| Keywords: | Direct Attach Copper Twinax Cable | ||
| Highlight: | DAC Direct Attach Cable,SFP28 Direct Attach Cable,25g dac cable |
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Hot-pluggable SFP28 25GBASE Passive Direct Attach Copper Twinax Copper Cable Low insertion loss
Description
This high speed,cost-effective Direct Attach Cables are designed for use in 25Gigabit Ethernet links.
They are electrically compliant with the SFF-8431, and the mechanical SFP28 plug is compatible with SFF-8432.
SFP28 Copper twinax cables are suitable for very short distances and offer a highly cost-effective way to connect within racks and across adjacent racks .
Gigaopto offers passive SFP28 twinax cables in lengths of 0.5~3meters by 30AWG and 4~5meters by 26AWG.
Each SFP28 connector comprises an EEPROM providing product information which can be read by the host system.
Every SFP28 Passive Direct Attach Copper Cable has been programmed, uniquely serialized, and data-traffic and application tested to ensure it is 100% compliant and functional.
Functional Specification
| Product Name | SFP28 DAC | Max Data Rate | 25.78125Gbps |
| Passive or Active | Passive | Cable Length | 0.5-Meter to 5-Meter |
| Connector Type | SFP28 to SFP28 | Cable impedance | 100 Ω ( typ.) |
| Minimum Bend Radius | 35mm | Wire Gauge | 26/30AWG |
| Cable type | Twinax Copper | Power supply | 3.3V |
| Jacket Material | PVC (OFNR) | Operating Temperature | 0 to 70°C (32 to 158°F) |
| Power Consumption | ≤0.1W | OEM/ODM | Supported |
| Digital Diagnostic Monitoring | N/A | Warranty | 3-Year |
| Protocols | IEEE 802.3, SFP28 MSA, SFF-8402, Infiniband, EIA 364-1000 | ||
| Application | 25G Ethernet, Data Center, 5G Wireless | ||
Ordering Information
| Part Number | Description | Wire Gauge | Minimum Bend Radius |
| GD-SFP28-0P5M | 25G SFP28 to SFP28 DAC Cable 0.5-meter, Passive, | 30AWG | 25mm |
| GD-SFP28-1M | 25G SFP28 to SFP28 DAC Cable 1-meter, Passive, | 30AWG | 25mm |
| GD-SFP28-1P5M | 25G SFP28 to SFP28 DAC Cable 1.5-meter, Passive, | 30AWG | 25mm |
| GD-SFP28-2M | 25G SFP28 to SFP28 DAC Cable 2-meter, Passive, | 30AWG | 25mm |
| GD-SFP28-2P5M | 25G SFP28 to SFP28 DAC Cable 2.5-meter, Passive, | 30AWG | 25mm |
| GD-SFP28-3M | 25G SFP28 to SFP28 DAC Cable 3-meter, Passive, | 30AWG | 25mm |
| GD-SFP28-4M | 25G SFP28 to SFP28 DAC Cable 4-meter, Passive, | 26AWG | 30mm |
| GD-SFP28-5M | 25G SFP28 to SFP28 DAC Cable 5-meter, Passive, | 26AWG | 30mm |
| Note | Cable length could be customized to any length as required. Please feel free to contact us. | ||
Features
Applications of 25G SFP28 Direct Attach Cable
Electrical Characteristics
| Parameter | Symbol | Unit | Min | Typ | Max | Notes |
| Supply Voltage | VCC | V | 3.14 | 3.46 | ||
| Supply Current | ICC | A | 0.31 | |||
| Power Consumption | Pc | W | 1 | |||
| Transmitter | ||||||
| Signaling rate per lane | Gbps | 25.78125 | ||||
| Input Differential Impedance | RIN | Ω | 100 | |||
| Differential data input swing | VIN | mVp-p | 180 | 700 | ||
| Transmit Disable Voltage | VD | V | 2 | Vcc | ||
| Transmit Enable Voltage | VEN | V | Vee | Vee+ 0.8 | ||
| Receiver | ||||||
| Differential data output swing | VOUT | mVp-p | 300 | 850 | ||
| Data output rise time, fall time | tr | ps | 28 | |||
| LOS Fault | VLOS fault | V | 2 | VccHOST | ||
| LOS Normal | VLOS normal | V | Vee | Vee+0.8 | ||
| Power Supply Noise Tolerance | VccT/VccR | mVpp | Per SFF-8431 Rev 4.1 | |||
| IIC communication | ||||||
| IIC Clock frequency | - | KHZ | 100 | 400 | ||
Compatibility
Each Gigaopto’s optical transceiver/AOC/DAC is tested in the host device to verify interoperability, and we promise 100% full compatibility on the specified device with a 3-year warranty. For this 25G SFP28 to SFP28 DAC Cables, please refer to the P/N correspondence table ( for example in 1-Meter length). If you are interested in knowing more compatibility, you are always welcome to contact us.
| Corresponding Compatible Brand/Part Number | |||
| Brand | Part Number | Brand | Part Number |
| Gigaopto | GD-SFP28-1M | Arista | CAB-S-S-25G-1M |
| Cisco | SFP-H25G-CU1M | Juniper | JNP-SFP-25G-DAC-1M |
| Dell | 470-ACEX | Mellanox | MCP2M00-A001 |
FAQ:
1.Can I have different compatibility for each end of the 25G SFP28 to SFP28 Direct Attach Cables?
Yes, supported. we offer customized dual compatibility solutions for Direct Attach Copper Cables so that you can choose compatibility for each end separately. All you need is to list out the requested Compatible Brands.
2.What kind of support customers can get from Gigaopto on OEM/ODM?
As for customized direct attach cables, we offer usual customization options such as compatibility, cable length, cable color, operating temperature, label pattern, label colors, etc. Any inquiries for customization is welcome.
Contact Person: Ophelia Feng
Tel: +86 15882203619
