FEATURES AND SPECIFICATIONS

SPECIFICATIONS

SFP Cage Assemblies

Multi-Port Stacked with

SlimStack™ Connectors

79527

These SFP Multi-Port Stacked Cage Assemblies from

Molex provide a simplified one-piece solution to meet

customer requirements for high-density SFP module

spacing. Available products support up to 4.25Gbps

data rates with power-filtering circuitry. Standard

versions feature an elastomeric gasket that reduces

insertion force into the I/O panel while ensuring a

reliable EMI seal. These assemblies feature the Molex

Board-to-Board SlimStack connector to maintain signal

transmission speeds and minimize costs. Circuit

components have been designed into the assemblies to

optimize electrical performance.

The product offering consists of standard and

customized assemblies, tailored to suit customers'

applications:

utilize two 1-by-4 SFP cages (series 73927) installed

belly-to-belly using one spacer board. The interface to

the host board is achieved with a 0.635mm (.025”)

SlimStack connector.

Styles include an original SFP-chassis style or a version

compliant with the ATCA* (Advanced Telecom

Computing Architecture) standard, the difference

specified by the height of the interface connector. The

ATCA version uses a 7.00mm (.276”) height while the

standard version uses a 10.00mm (.394”) height

connector.

of SFP cages, along with the addition of power filtering

components on the spacer board, customized

mechanical outlines or the options of pre-installed

LEDs and light pipes.

Reference Information

Packaging: Box

Mates With: 73929 Copper Patch Cable,

74720 HSSDC2 Copper Pluggable Module and

industry-standard optical SFP modules

Used With: 0.635mm (.025”) SlimStack Connector Plug

on host PCB

Designed In: Millimeters

Electrical - SFP Connector (74441)

Voltage: 30V

Current: 0.5A

Contact Resistance: 10m max.

Dielectric Withstanding Voltage: 300VAC

Insulation Resistance: 100M min.

Electrical - 0.635mm (.025”) SlimStack

Receptacle

Voltage: 100V

Current: 0.5A

Contact Resistance: 40m max.

Dielectric Withstanding Voltage: 250V AC

Insulation Resistance: 1000M

min.

Mechanical

SFP Connector contact retention to Housing:

4.4N (1.0 lb)

Mating Force: 22N (5.0 lb)

Unmating Force: 8.8N (2.0 lb)

Normal Force: 0.8N (80g)

Durability: 200 cycles

Physical - SFP Connector (74441)

Housing: High-temperature thermoplastic

Contact: Copper Alloy

Plating: Contact Area - 0.38µm min. Gold

Solder Tail Area - Gold flash or 2.54µm Tin/Lead

Underplating - 2.54µm Nickel

Physical - 0.635mm (.025”) SlimStack

Receptacle

Housing: White Glass Filled LCP, UL 94V-0

Contact: Copper Alloy

Plating: Gold over Nickel

Operating Temperature: -55 to +85°C

Physical - Multi-Port Stacked SFP Cage

(79527)

Housing: Nickel-Silver alloy

PCB Thickness: 3.00mm (.118”) min. for single-sided

PCB, 3.81mm (.150”) min. for double-sided PCB

Operating Temperature: -55 to +85° C

Features and Benefits

I

Single-piece board-to-board assembly provides easy

installation and facilitates ordering and

inventorying of components

I

High-speed electrical performance tested to 2.5Gbps

and 4.25Gbps supports high-speed networking and

data exchange equipment

I

Individual electrical customization provides added

board components for power filtering, enhanced

electrical performance and added LEDs and

lightpipes

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Mechanical customization allows board size to fit

customer dimensions and shape and reduces lead

time for modification and design changes

Customized and Standard Small Form-factor Pluggable (SFP) Multi-Port Stacked Cage Assemblies

with SlimStack Connectors Provide One-Piece Convenience and Superior Electrical Performance

Custom SFP Multi-Port Stacked Assembly

Host PCB Side Up with SlimStack Connector

SFP Multi-Port Stacked Assembly

Standard Form Factor Chassis