25G SFP28 ACC Cables – www.philisun.com https://www.philisun.com Optical transceivers support <strong>10G to 800G</strong> high-speed transmission Sat, 09 May 2026 02:59:40 +0000 en-US hourly 1 https://www.philisun.com/wp-content/uploads/2025/10/philisun斐立飒-logo彩色方形-1-100x100.png 25G SFP28 ACC Cables – www.philisun.com https://www.philisun.com 32 32 25G SFP28 to SFP28 Active Direct Attach Copper Twinax Cable (ACC) https://www.philisun.com/products/25g-sfp28-acc/ Sat, 09 May 2026 02:49:21 +0000 https://www.philisun.com/?post_type=product&p=9059 Compliant with IEEE 802.3, SFP28 MSA, SFF-8402 standard
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25G SFP28 to SFP28 Active Direct Attach Copper Twinax Cable (ACC)最先出现在www.philisun.com。

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SPECIFICATIONS
Cable End Connector ASFP28Cable End Connector BSFP28
Jumper TypeDirect-AttachData Rate25G
Aggregate Bit Rate25.78125GbpsLane Bit Rate25.78125Gbps
Number of Channels1Single Channel Rate25G
Minimum Bend Radius5X Cable OD -Single, 10X Cable OD - RepeatedFactory BrandPHILISUN
Attenuation26AWG:10dB/8.5m maximum
28AWG:10dB/7m maximum
30AWG:8.4dB/5.5m maximum		Bit Error Rate≤10-12
ShieldBraid/FoilWire AWG26AWG/28AWG/30AWG
Cable TypeActive TwinaxCable OD30AWG: 4.5mm
28AWG: 4.8mm
26AWG: 5.6mm
Cable Colour/MaterialBlack PVC(OFNR)Cable Length Selection1-9 meter
ProtocolsSFF-8402/IEEE802.3/SFF 8472/SFP28 MSAApplication Scenarios25 Gigabit Ethernet (25GbE)
Supply Voltage3.3VPower Dissipation<0.5W
Operating Temperature0 to 70℃ (32 to 158℉)Storage Temperature-40 to 85℃ (-40 to 185℉)

 

PRODUCT PRESENTATION
The PHILISUN 25G SFP28 to SFP28 Active Twinax Cable is designed for 25G Ethernet applications. It complies with IEEE 802.3 and SFP28 MSA standards. Each SFP28 connector integrates an EEPROM that stores product information readable by the host system.
These cables are ideal for very short‑reach links, offering a cost‑effective solution for 25G connections within and between adjacent racks, connecting to 25G SFP28 ports on switches and routers.

 

DAC SERIES PRODUCTS

 

PRODUCTION & TESTING EQUIPMENT

 

PERFORMANCE PARAMETER
Absolute Maximum Ratings
Parameter Unit Min. Typical Max. Notes
Storage Temperature ℃ -40 – 85 –
Operating Relative Humidity % – – 85 –
Power Supply Working Voltage V -0.5 – 3.63 –

 

Recommended Operating Conditions
Parameter Unit Min. Typical Max. Notes
Operating Case Temperature ℃ 0 – 70 –
Power Supply Working Voltage V 3.135 3.135 3.135 –
Bit Rate Gbps – 25.78125 – –

 

Electrical Characteristics
Parameter Unit Min. Typical Max. Notes
Differential Impedance Ω 90 100 110 1
Differential Insertion Loss SDD21 –   -22.48d B Min. @ 12.89GHz –
Intra- Pair Skew ps/m – – 15 2
NEXT dB – – -35 –
COM dB 4 – – –
Dielectric Withstand Voltage VDC 300 – – 3
Insulation Resistance MΩ 10 – – 4
Low Level Contact Resistance Milliohms – – 70 5
Note:
1. Test condition: Rise time of 25ps (20 % – 80 %), cable termination.
2. 10MHz≤f ≤ 19GHz.
3. EIA-364-20: Apply a voltage of 300 VDC for  1 minutebetween adjacent terminals, and between adjacent terminals and ground.
4. EIA364-21: AC 300V  1 minute.
5. EIA-364-23: Apply a maximum voltage of 20mV, and a current of 100 mA.

 

Performance Specification
All performance is defined over the recommended operating environment unless otherwise specified.
1. Cable
Parameter Typical
Wire Gauge AWG30/AWG28/AWG26
Impedance 100±5Ω
Construction Twin-Axial
Jacket Type PVC
  Bend Radius 5X Cable OD -Single,  10X Cable OD – Repeated
2. Plug
Parameter Typical
Backshell Material Nickel- Plated Zinc Diecast
Contact Material PCB with Gold- Plated Pads
Latch Positive Latching w/Pull Tab
Insertion Force 18N Max.
Withdrawal Force 12.5N Max.
Retention Force 90N Min.
Durability 50 Cycles Min.

 

PIN Function Definitions

 

Transceiver Pin Descriptions
Pin No. Symbol Level/ Logic Description
1 VeeT – Module Transmitter Ground
2 Tx_Fault LVTTL-O Module Transmitter Fault Indication
3 Tx_DIS LVTTL-I Transmitter Disable, Active High Disable Transmitter Output
4 SDA LVTTL-I 2-Wire Serial Interface Data Line
5 SCL LVTTL-I/O 2-Wire Serial Interface Clock
6 MOD_ABS LVTTL-O Module Absent, Connected to Ground in The Module
7 RS0 – Rate Select0,Optionally Controls SFP28 Module Receiver
8 RX_LOS LVTTL-O Loss of Receiver Signal Indication
9 RS1 – Rate Select 1, Optionally Controls SFP28 Module Transmitter
10 VeeR – Module Receiver Ground
11 VeeR – Module Receiver Ground
12 RD- CML-O Receiver Inverted Data Output
13 RD+ CML-O Receiver Non-Inverted Data Output
14 VeeR – Module Receiver Ground
15 VccR – Module Receiver 3.3V Supply
16 VccT – Module Transmitter 3.3V Supply
17 VeeT – Module Transmitter Ground
18 TD+ CML-I Transmitter Non-Inverted Data Input
19 TD- CML-I Transmitter Inverted Data Input
20 VeeT – Module Transmitter Ground

 

Recommended Wiring Diagram

 

PRODUCT CERTIFICATION

 

COMPATIBLE BRANDS
CONFIGURATION INFORMATION
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25G SFP28 to SFP28 Active Direct Attach Copper Twinax Cable (ACC)最先出现在www.philisun.com。

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