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25GBase SFP28 To SFP28 DAC Direct Attach Cable 3m SFP-H25G-CU3M Compatible

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25GBase SFP28 To SFP28 DAC Direct Attach Cable 3m SFP-H25G-CU3M Compatible

Country/Region	china
City & Province	shenzhen
Categories	Chargers

Product Details

25GBase SFP28 To SFP28 DAC Direct Attach Cable 3m SFP-H25G-CU3M Compatible

Cisco SFP-H25G-CU3M Compatible 25GBase SFP28 to SFP28 Direct Attach Cable 3m

This is a Cisco SFP-H25G-CU3M compatible 25GBase-CU SFP28 to SFP28 direct attach cable that operates over passive copper with a maximum reach of 3.0m (9.8ft). Our SFP28 DAC cables offer precision external cable assembly solutions. They meet the ever increasing demand for higher channel density with high-level signal integrity in high performance computing, top-of-rack switching, and network storage deployments.

Features

1. Data rate from 1 Gbps to 28 Gbps
2. 360° shielding for superior EMI/EMC performance
3. Proprietary high-speed PCB termination technology to minimize impedance discontinuity and cross talk
4. Patented back shell and positive latching mechanism for easy engagement and disengagement
5. Overmolded cable termination for increased mechanical robustness
6. Dust covers included for all plugs

High Speed Characteristics

Parameter	Symbol	Min	Typ	Max	Units	Notes
Differential Impedance	RIN,P-P	90	100	110	Ω
Insertion loss	SDD21	8		22.48	dB	At 12.8906 GHz
Differential Return Loss	SDD11	12.45		See 1	dB	At 0.05 to 4.1 GHz
Differential Return Loss	SDD22	3.12		See 2	dB	At 4.1 to 19 GHz
Common-mode to common-mode output return loss	SCC11	2			dB	At 0.2 to 19 GHz
Common-mode to common-mode output return loss	SCC22	2			dB	At 0.2 to 19 GHz
Differential to common-mode return loss	SCD11	12		See 3	dB	At 0.01 to 12.89 GHz
Differential to common-mode return loss	SCD22	10.58		See 4	dB	At 12.89 to 19 GHz
Differential to common Mode Conversion Loss	SCD21-IL	10				At 0.01 to 12.89 GHz
				See 5	dB	At 12.89 to 15.7 GHz
		6.3				At 15.7 to 19 GHz
Channel Operating Margin	COM	3			dB

Notes:

Reflection Coefficient given by equation SDD11(dB) < 16.5 - 2 × SQRT(f ), with f in GHz
Reflection Coefficient given by equation SDD11(dB) < 10.66 - 14 × log10(f/5.5), with f in GHz
Reflection Coefficient given by equation SCD11(dB) < 22 - (20/25.78)*f, with f in GHz
Reflection Coefficient given by equation SCD11(dB) < 15 - (6/25.78)*f, with f in GHz
Reflection Coefficient given by equation SCD21(dB) < 27 - (29/22)*f, with f in GHz

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 6/6	RoHS 6/6 compliant

Application

25G Ethernet
Data center cabling infrastructure

Description

Our DAC cables extremely low-insertion loss due to the unique foam skin, gas-injected dielectric technology as well as extreme control of balanced/unbalanced (Mode conversion). The technology offers ease of cable management and smaller packaging densities. The cable assemblies employ new, innovative PCB technology designed specifically to deliver signal integrity performance. The cables regulate cross talk and launch conditions between wire and PCB termination to optimize return loss and prevent or minimize “ringing” effects. Please contact us for more details.

Details

• Compliant with SFF-8402 and SFF-8432
• Compatible to SFP+ MSA SFF-8431
• Lowest total system EMI solution
• Single 3.3V power supply
• RoHS Compliant and Lead-Free