25G Passive SFP28 TO SFP28 Direct Attach Cable

SKU 7217050 Categories Fiber Optic Transceivers, DAC

Up to 25.78125Gbps per channel bandwidth;
Compliant to SFP + MSA and SFF-8432 compliant
Support 25GBASE-SR4/EDR application
Enhanced EMI / EMC performance
Compliant with the IEEE 802.3bj standard and Infiniband EDR specifications
Support serial ID function through EEPROM
30AWG to 26AWG cable available
Commercial Temperature range 0°C to 70°C
RoHS Compliant Part

Zion Code and Description

Zion Code	Zion Description
7217050	25G Passive SFP28 TO SFP28 Direct Attach Cable

Applications

100GBASE-SR4 100G Ethernet Links; InfiniBand QDR applications
Servers, switches, storage and host card adap

Description

The 7217050 25G SFP28 direct attach cables is a low-cost, high-efficiency high-speed interconnection solution with a single channel maximum transmission rate of up to 25Gbps. It is suitable for stacking and connection of short-distance switch equipment.

Main product parameters

Connector Type	SFP28 to SFP28	Vendor Name	Zion Communication
Max Data Rate	25Gbps	Wire AWG	26AWG – 30AWG
Max Cable Distance 1	5m	Cable Type	Passive Twinax
Power Supply	3.3V	Operating Temp.	0°C to 70°C (32°F to 158°F)

Outline Drawing

Zion Communication’s Hot DAC types

Zion Code		Zion Description
7217010		100G Passive QSFP28 TO QSFP28 Direct Attach Cable
7217020		100G Passive QSFP28 TO 4×SFP28 Direct Attach Cable
7217030		40G Passive QSFP+ TO QSFP+ Direct Attach Cable
7217040		40G Passive QSFP+ TO 4×SFP+ Direct Attach Cable
7217050		25G Passive SFP28 TO SFP28 Direct Attach Cable
7217060		10G Passive SFP+ TO SFP+ Direct Attach Cable

Electrical Performance

1. Signal Integrity

Item		Requiement	Test Condition
Diffrential Impedance	Cable Impedance	105±5 Ω	Rise time of 25ps (20 % – 80 %).
	Paddle Card Impedance	100±10 Ω
	Cable termination impedance	100±15 Ω
[Differential (Input/Output)Return loss SDD11/SDD22]		Return_loss(f)≥ Where f is the frequency in GHz Return loss(f) is the return loss at frequency f	10MHz≤f ≤19GHz
[Differential to common-mode (Input/Output)Return loss SCD11/SCD22]		Return_loss(f)≥ Where f is the frequency in GHz Return_loss(f) is the Differential to common-mode return loss at frequency f	10MHz≤f ≤19GHz
[Common-mode to Common-mode (Input/Output)Return loss SCC11/SCC22]		Return_loss(f)≥2dB 0.2≤f≤19 Where f is the frequency in GHz Return_loss(f) is the common-mode to common-mode return loss at frequency f	10MHz≤f ≤19GHz
[Insertion Loss Deviation]		-0.176f – 0.7 ≤ ILD ≤ 0.176 f + 0.7	50MHz≤f ≤19GHz
Differential to common-mode Conversion Loss-Differential Insertion Loss(SCD21-SDD21)		Conversion _loss(f) – IL(f)≥ Where f is the frequency in GHz Conversion_loss(f ) is the cable assembly differential to common-mode conversion loss IL(f) is the cable assembly insertion loss	10MHz≤f ≤19GHz
[MDNEXT(multiple disturber near-end crosstalk)]		≥35dB @12.89GHz	10MHz≤f ≤19GHz
[Intra Skew]		15ps/m,	10MHz≤f ≤19GHz

2. Differential InsertionLoss Max. For TPa to TPb Excluding Test fixture

AWG	Length	1.25GHz	2.5GHz	5.0GHz	7.0GHz	10GHz	12.89GHz
30 AWG	Max. 1m	4.5dB	5.4dB	6.3dB	7.5dB	8.5dB	10.5dB
30/28 AWG	Max. 3m	7.5dB	9.5dB	12.2dB	14.8dB	18.0dB	21.5dB
26 AWG	Max. 3m	5.7dB	7.2dB	9.9dB	11.9dB	14.1dB	16.5dB
26/25 AWG	Max. 5m	7.8dB	10.0dB	13.5dB	16.0dB	19.0dB	22.0dB

3. Environment Performance

Item	Requiement	Test Condition
Operating Temp. Range	-20°C to +75°C	Cable operating temperature range.
Storage Temp.Range (in packed condition)	-40°C to +80°C	Cable storage temperature range in packed condition.
Thermal Cycling Non-Powered	No evidence of physical damage	EIA-364-32D, Method A, -25 to 90C, 100 cycles, 15 min. dwells
Salt Spraying	48 hours salt spraying after shell corrosive area less than 5％.	EIA-364-26
Mixed Flowing Gas	Pass electrical tests per 3.1 after stressing. (For connector only)	EIA-364-35 Class II,14 days.
Temp. Life	No evidence of physical damage	EIA-364-17C w/ RH, Damp heat 90℃ at 85% RH for 500 hours then return to ambient
Cable Cold Bend	4H,No evidence of physical damage	Condition: -20℃±2℃, mandrel diameter is 6 times the cable diameter.

4. Mechanical and Physical Characteristics

Item	Requiement	Test Condition
Vibration	Pass electrical tests per 3.1 after stressing.	Clamp & vibrate per EIA-364-28E,TC-VII, test condition letter – D, 15 minutes in X, Y & Z axis.
Twist	No evidence of physical damage	Twist cable 180° (±90° from nominal position) for 100 cycles at 30 cycles per minute with a 0.5kg load applied to the cable jacket.Clamp position: 300mm
Cable Flex	No evidence of physical damage	Flex cable 180° for 20 cycles (±90° from nominal position) at 12 cycles per minute with a 1.0kg load applied to the cable jacket. Flex in the boot area 90º in each direction from vertical. Per EIA-364-41C
Cable Plug Retention in Cage	90N Min. No evidence of physical damage	Force to be applied axially with no damage to cage. Per SFF 8661 Rev 2.1 Pull on cable jacket approximately 1 ft behind cable plug. No functional damage to cable plug below 90N. Per SFF-8432 Rev 5.0
Cable Retention in Plug	90N Min. No evidence of physical damage	Cable plug is fixtured with the bulk cable hanging vertically. A 90N axial load is applied (gradually) to the cable jacket and held for 1 minute. Per EIA-364-38B
Mechanical Shock	Pass electrical tests Per 3.1 after stressing.	Clamp and shock per EIA-364-27B, TC-G, 3 times in 6 directions, 100g, 6ms.
Cable Plug Insertion	40N Max.(QSFP28)	Per SFF8661 Rev 2.1
Cable plug Extraction	30N Max. (QSFP28)	Place axial load on de-latch to de-latch plug. Per SFF8661 Rev 2.1
Durability	50 cycles,No evidence of physical damage	EIA-364-09, perform plug &unplug cycles:Plug and receptacle mate rate: 250times/hour. 50times for QSFP28/SFP28 module (CONNECTOR TO PCB)

5. Wiring Diagram

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25G Passive SFP28 TO SFP28 Direct Attach Cable

Zion Code and Description

Applications

Description

Main product parameters

Outline Drawing

Zion Communication’s Hot DAC types

Electrical Performance

1. Signal Integrity

2. Differential InsertionLoss Max. For TPa to TPb Excluding Test fixture

3. Environment Performance

4. Mechanical and Physical Characteristics

5. Wiring Diagram

Download

Email us, Call us, Meeting online with us!

Tell us about your purchasing plans!

Products

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Optical fiber systems & Copper cabling infrastructure products | High quality and excellent service at reasonable prices.

25G Passive SFP28 TO SFP28 Direct Attach Cable

Zion Code and Description

Applications

Description

Main product parameters

Outline Drawing

Zion Communication’s Hot DAC types

Download

Email us, Call us, Meeting online with us!

Tell us about your purchasing plans!

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