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DAC (Direct Attach Cable)/

100G QSFP28 TO 4SFP28 DIRECT ATTACH CABLE

Up to 25.78Gbps data rate per channel

Up to 5m transmission

Hot-pluggable QSFP+ 38 PIN footprint

Compatible to SFF-8665

Compliant with IEEE 802.3bj

Single 3.3V power supply

Temperature Range: 0~ 70 °C

RoHS compliant

  • Product Detail
  • Applications
  • Pin Descriptions
  • Mechanical Dimensions

QSFP28 Direct Attach Cables are compliant with the SFF-8665 specifications. 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).

Mechanical SpecificationsOrdering Information

ParameterMinimumTypicalMaximumUnit
Cable Diameter (26AWG)0.220Inches
Bend Radius (26AWG)1.102Inches
Cable Diameter (28AWG)0.185Inches
Bend Radius (28AWG)0.925Inches
Cable Diameter (30 AWG)0.181Inches
Bend Radius (30 AWG)0.906Inches
Within Pair Skew100ps/10m
Cable Insertion Loss15.43dB/5m
Bulk Cable Time Delay5.2ns/m
Bulk Cable Impedance95100105Ohms
Insertion Force40N
Withdrawal Force30N
Retention Force90N
Durability50 Cycles
  • Low EMI radiation switches, servers and routers
  • Data center networks
  • Storage area networks
  • High performance computing
  • Telecommunication and wireless infrastructure
  • Medical diagnostics and networking
  • Test and measurement equipment
  • Recommended Operation Condition of 100G QSFP28 TO 4SFP28 Direct Attach Cable

    ParameterSymbolMinMaxUnit
    Operating Case TemperatureTopc070degC
    Storage TemperatureTst-4085degC
    Relative Humidity (non-condensation)RS3560%
    Supply VoltageVCC33.1353.465V
    Voltage on LVTTL InputVilvttl-0.3VCC3  +0.2V
    Power Supply CurrentICC315mA
    Total Power ConsumptionPd0.05W

    Notes: Stress or conditions exceed the above range may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not applied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

The connector is compatible with the SFF-8432 and SFF-8665 specification.

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