1934026-1 datasheet(24/32 Pages) MACOM

24 / 32 page

Catalog 3-1773445-8

Dimensions are in millimeters

Dimensions are shown for

USA: 1-800-522-6752

South America: 55-11-2103-6000

Revised 6-07

and inches unless otherwise

reference purposes only.

Canada: 1-905-470-4425

Hong Kong: 852-2735-1628

specified. Values in brackets

Specifications subject

Mexico: 01-800-733-8926

Japan: 81-44-844-8013

www.tycoelectronics.com

are U.S. equivalents.

to change.

C. America: 52-55-1106-0803

UK: 44-8706-080-208

Product Compliant to xTCA or AdvancedMC Specifications (Continued)

Solutions for AdvancedTCA, AdvancedTCA 300,

MicroTCA, and AdvancedMC Standards

AdvancedMC, AdvancedTCA,

AdvancedTCA 300, MicroTCA and

PICMG are trademarks of PICMG-PCI

Industrial Computer Manufacturers

Group Incorporated.

Note: Part Numbers are RoHS

compliant.

The new Tyco Electronics Low Profile DDR2

connector is designed for the main memory

requirements on the AdvancedTCA carrier

boards. Developed for use with a new

VLP (Very Low Profile) module from Micron

Technology, this connector meets the

AdvancedTCA height limitations on the

carrier board.

In addition, this connector offers a new

ejector design that allows airflow to reach

the memory module DRAMs for effective

cooling.

Low Profile DDR2 Connector for AdvancedTCA Standards

FEATURES

• Accepts new Micron Technology

VLP (Very Low Profile) DDR2

memory

module

designed

specifically for the AdvancedTCA

carrier board

• Special designed ejectors that

allow airflow to reach memory

module

DRAMs

for

efficient

cooling

• Low module seating plane allows

for increased module space for

module components in a VLP

form factor

• Utilizes proven Tyco Electronics

DDR2 contact design for reliable

interface to the memory module

• Available in 3 solder tail lengths

and

contact

interface

plating

options

Part Number 1888669-1

1.30 ± 0.05

[.051 ± .002]

140.90

[5.547]

Max.

73.00

[2.874]

2.87 ± 0.25

[.113 ± .010]

For 1.60 [.063]

Thk. PCB

3.38 ± 0.25

[.133 ± .010]

For 2.36 [.093]

Thk. PCB

4.20 ± 0.25

[.165 ± .010]

For 3.18 [.125]

Thk. PCB

Ref.

65.00

[2.559]

Ref.

0.36

[.014]

Ref.

4.00

[.157]

Ref.

Card Slot

7.54

[.297]

Main Body

5.54

[.218]

Extractor Tower

Key

1.90

[.075]

21.00

[.827]

8.15

[.321]

2 Plcs.

Max.

2 Plcs.

Max.

3 Plcs.

21.00

[.821]

Max.

2 Plcs.

14.50

[.571]

Min.

2 Plcs.

5.00

[.197]

Min.

2 Plcs.

10.00

[.394]

Min.

2 Plcs.

0.30

[.012]

Min.

3 Plcs.

3.55

[.140]

Max.

Key Height

2.95

[.116]

Max. PCB To

Card Slot Floor

9.00

[.354]

Max.

Latch Open

6.85

[.270]

Max. Component Height in

Extractor Shadow Area

Retention

Barb

4.00

[.157]

2.50

[.098]

Min.

3 Plcs.

0.20

[.008]

Ref.

+ 0.05

– 0.08

+ .002

– .003

1.45

[.057

]

CL of Alignment Key

CL of Connector

142.00

[5.591]

Max.

PCB Footprint

145.00

[5.709]

Max.

Latch Closed

165.00

[6.496]

Max.

Open Latch

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