5. Mechanical

5.1. TX module outline

Module L W A B
TX25 67.6mm 26mm 1.4mm 1.3mm
TX27 1.8mm 1.0mm
TX28 1.8mm 1.1mm
TX48 1.8mm 1.1mm
TX51 1.8mm 1.1mm
TXUL 1.8mm 1.1mm
TX8M 1.8mm 1.1mm
TX53 31mm 1.8mm 1.3mm
TX6 2.0mm 1.1mm
TX8X 2.0mm 1.1mm
../_images/tx_module_outline1.png
../_images/tx_module_outline2.png

5.2. 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 number Socket height Overall mounting height Underside space Supplier
1565691-1 4.0mm 4.5mm 0.5mm Tyco Electronics
AS0A426-E4SN-7F Foxconn
SODIMM200S52T25 5.2mm 5.7mm 1.7mm admatec
AS0A426-E2SN-7F Foxconn
1473005-1 Tyco Electronics
AS0A426-B6SN-7F 6.5mm 7.0mm 3.0mm Foxconn
1717468-3 Tyco Electronics
AS0A426-B8SN-7F 8.0mm 8.5mm 4.5mm Foxconn
SODIMM200S92T25 9.2mm 9.7mm 5.7mm admatec
AS0A426-EASN-7F Foxconn

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℃

5.3. DIMM Connector PCB Layout example

../_images/dimm_connector1.png

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

../_images/dimm_connector2.png

5.4. 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 Number Description Image Quantity

TX00-ZV02

(Fastener Kit / 10 sets)

Self Retaining Screw Spacer for M2,0 Length 3,0 mm, Outside Diameter 4,00 mm www.ettinger.de part. no. 07.51.403
../_images/tx_fastener_kit_tabelle.png
20
Nut M2,0   20
Screw M2,0 x 8mm   20
../_images/tx_fastener_kit.png

5.5. TX Heatsink Kit (17 K/W)

Ka-Ro p/n Item Description Image 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
../_images/tx_fastener_kit_tabelle.png
2
Screw Spacer for M2,0 Length 2,0 mm, Outside Diameter 4,00 mm www.ettinger.de p/n 05.81.020
../_images/tx_fastener_kit_tabelle.png
2
Thermal gap filler Fischer Elektronik GmbH, heat conductive gel foil GEL 10   20mm x 20mm
Screw Screw M2,0 x 10mm   2
../_images/tx_heatsink_kit_17k.png

5.5.1. Standard extruded heatsink – SK 473 – length 68mm

../_images/standard_extruded_heatsink_sk473_1.png
../_images/standard_extruded_heatsink_sk473_2.png

5.5.2. Heat conductive gel foil – GEL 10

Fischer Elektronik GEL 10 datasheet
version standard
material GEL foil
material thickness 1 mm
tolerance 0.2
thermal conductivity 1.5 W/m·K
volume resistivity >1·106 MΩ/m
Rth 1.02 °C in2/W
hardness range < 49 Shore 00
temperature range -60 °C … +200 °C
extensibility 100 %
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 strength 14 kV/mm (AC)
tightness 2.6 g/cm3
class of flammibility UL 94 V-0
type of delivery on both sides covered with protective foil material

5.6. TX Heatsink Kit (7 K/W)

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

Ka-Ro p/n Item Description Image 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
../_images/tx_fastener_kit_tabelle.png
4
Thermal gap filler Fischer Elektronik GmbH, heat conductive gel foil GEL 27 S 25   57mm x 15mm
Screw Screw M2,0 x 12mm   2
../_images/tx_heatsink_kit_7k.png

5.6.1. Standard extruded heatsink – SK 560 – length 68mm

../_images/standard_extruded_heatsink_sk560_1.png
../_images/standard_extruded_heatsink_sk560_2.png

5.6.2. Heat conductive gel foil – GEL 27 S 25

Fischer Elektronik GEL 27 S 25 datasheet
material thickness 2.5 mm
thermal conductivity 2.7 W/m·K
volume resistivity 2·107 MΩ/m
Rth 0.94 °C in2/W
hardness range 45 Shore 00
temperature range -60 °C … +200 °C
extensibility 45 %
dielectric strength 15 kV/mm
tightness 3 g/cm3
class of flammibility UL 94 V-0
type of delivery on both sides covered with protective foil material