Ka-Ro electronics GmbH Aachen
Germany
Ka-Ro electronics GmbH
Pascalstr. 22, D-52076 Aachen, Germany
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4 Mechanical

4.1 TX module outline

ModuleLWAB
TX25

 

67.6mm


26mm


1.4mm1.3mm
TX271.8mm1.0mm
TX281.8mm1.1mm
TX481.8mm1.1mm
TX511.8mm1.1mm
TX5331mm

1.8mm1.3mm
TX62.0mm1.1mm

 

 

4.2 SO-DIMM connector

For detailed information on socket dimensions and recommended PCB layout refer to the manufacturer datasheets. Be sure to use DDR SO-DIMM type sockets with 2,5V keying.

 

Part numberSocket heightOverall mounting heightUnderside spaceSupplier
1565691-14,0mm4,5mm0,5mmTyco Electronics
AS0A426-E4SN-7FFoxconn
SODIMM200S52T255,2mm5,7mm1,7mmadmatec
AS0A426-E2SN-7FFoxconn
1473005-1Tyco Electronics
AS0A426-B6SN-7F6,5mm7,0mm3,0mmFoxconn
1717468-3Tyco Electronics
AS0A426-B8SN-7F8,0mm8,5mm4,5mmFoxconn
SODIMM200S92T259,2mm9,7mm5,7mmadmatec
AS0A426-EASN-7FFoxconn

Tabelle 1: SO-DIMM part numbers and suppliers

 

Typical DDR SO-DIMM Socket specifications

  • Duarbility: 25 Cycles
  • Voltage Rating: 25V
  • Current Rating: 0.5A (Tyco Electronics 1473005-1)
  • Contact Resistance: 50mΩ max.
  • Dielectric Withstanding Voltage: 250V AC/1 min.
  • Insulation Resistance: 100 MΩ
  • Operating Temperature: -40℃ to +85℃

4.3 DIMM Connector PCB Layout example

The position of the TX module mounting holes depend on the used DIMM socket. The following example applies to a Tyco socket 1473005-1.

4.4 TX Fastener Kit

A fastener kit provides secure mounting of modules plugged into the SO-DIMM socket. An additional thread locker is recommended to hold the screws in during vibration.
KA-RO Part numberDescription

Quantity

TX00-ZV02

(Fastener Kit / 10 sets)

Self Reating Screw Spacer for M2,0

Length 3,0mm

Outside Diameter 4,00m

www.ettinger.de part. no. 07.51.403

20
Nut M2,020
Screw M2,0 x 8mm20

 

 

4.5 TX Heatsink Kit (17 K/W)

The TX Heatsink Kit provides also a secure mounting of a module.

Ka-Ro p/nItemDescription

Quantity
TX00-ZV06

Heatsink

Fischer Elektronik GmbH

customised SK 473, 27mm x 68mm x 6mm

1
Spacer

Self Retaining Screw Spacer

for M2,0, Length 3,0 mm,

Outside Diameter 4,00 mm

www.ettinger.de p/n

07.51.403

2

Screw Spacer for M2,0

Length 2,0 mm,

Outside Diameter 4,00 mm

www.ettinger.de p/n

05.81.020

2
Thermal gap filler

Fischer Elektronik GmbH

heat conductive gel foil GEL 10

20mm x 20mm
ScrewScrew M2,0 x 10mm2

 

4.5.1 Standard extruded heatsink – SK 473 – length 68mm

 

 

 

 

 

4.5.2 Heat conductive gel foil - GEL 10

Fischer Elektronik GEL 10 datasheet:

version

standard

materialGEL foil
material thickness1 mm
tolerance0.2
thermal conductivity1.5 W/m*K
volume resistivity> 1*106 MΩ/m
Rth1.02 °C in 2/W
hardness range< 49 Shore 00
temperature range-60°C ... +200°C
extensibility100%
dielectric constant

5.8 [50 Hz]

5.6 [1 KHz]

5.5 [1 MHz]

dielectric loss factor   

0.048 [50 Hz]

0.015 [1 KHz]

0.003 [1 MHz]

dielectric strength14 kV/mm (AC)
tightness2.6 g/cm3
class of flammibilityUL 94 V-0
type of deliveryon both sides covered with protective foil material

4.6 TX Heatsink Kit (7 K/W)

The TX Heatsink Kit provides also a secure mounting of the module.

 

Ka-Ro p/nItemDescription

Quantity
TX00-ZV07

Heatsink

Fischer Elektronik GmbH

customised SK 560, 27mm x 68mm x 14mm

1
Spacer

Self Retaining Screw Spacer

for M2,0, Length 3,0 mm,

Outside Diameter 4,00 mm

www.ettinger.de

p/n 07.51.403

4
Thermal gap filler

Fischer Elektronik GmbH,

heat conductive gel foil GEL 27 S 25

57mm x 15mm
ScrewScrew M2,0 x 12mm2

 

 

4.6.1 Standard extruded heatsink – SK 560 – length 68mm

4.6.2 Heat conductive gel foil – GEL 27 S 25

Fischer Elektronik GEL 27 S 25 datasheet:

material thickness2.5 mm
thermal conductivity2.7 W/m*K
volume resistivity2*107 MΩ/m
Rth0.94 °C in 2/W
hardness range45 Shore 00
temperature range-60°C ... +200°C
extensibility45%
dielectric strength15 kV/mm
tightness3 g/cm3
class of flammibilityUL 94 V-0
type of deliveryon both sides covered with protective foil material

 

 

 

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