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www.us-tech.com
Tech-Etch Offers Low-Profile Board Shielding
Plymouth, MA — Tech-Etch Slim - Shield is a low-profile, two-piece, board-level shielding line with shield heights as low as 0.06 in. (1.5 mm). Shields have a dimpled cover that
any configuration. A configurable PDF sales drawing for low-profile, board-level shields can be down- loaded from the company’s website. Tech-Etch also offers economi-
February, 2018
TT Electronics Introduces Heat Sink for Power Resistors
Perry, OH — TT Electronics has introduced its WMHP-HS heat sink, specifically designed to optimize the thermal performance of its WMHP series power resistors. Providing a combination of high surface area, excellent cooling performance, com- pact dimensions, and light weight, the PCB mounting heat sink is a good choice for power supplies, power ampli- fiers, motor drives, and inrush current control appli- cations that require resistors operating in the 20 to 100W range. The WMHP-HS heat
Low-profile PCB shields.
snaps into etched holes on the fence. The photo-etching process provides complete design freedom and fast delivery. Standard dimple tooling offers variable dimple location with excellent cover retention at low cost. There is no tooling cost for stan-
dard two-piece designs, as well as no additional cost for holes and slots for heat dissipation, logos and part num- bers. An optional flange for added rigidity is available on larger fence designs. Multi-cavity designs are achieved by incorporating internal fences that enable multiple compo- nents to be shielded with the same part. Mounting pins are offered in
cal, standard one-piece designs with depth-etched bend lines for easy hand forming, as well as standard two-piece designs that utilize a spring-finger attachment between fence and cover. Custom designs offer nearly unlimited possibilities for materials and shapes. The com- pany’s product engineers can help develop the best design for any spe-
cific application. Contact: Tech-Etch, Inc., 45
Aldrin Road, Plymouth, MA 02360 % 508-747-0300 E-mail: sales@tech-
etch.com Web:
www.tech-etch.com See at ATX/MD&M West, Booth 1383
The material matters in material handling
sink is aimed at designers using TO-220 or TO-247 power resistors in compact power electronic assemblies in the industrial and medical markets. Factors driving demand are the growth in dis- tributed power management and motion control in industrial and automated systems, as well as the pressure to reduce size and weight, while increasing cooling effectiveness and product reliability. Extruded from 6063-T5 alu-
minum, the WMHP-HS heat sink’s compact footprint of 1.7 x 1 in. (42 x 25 mm) minimizes the use of valu- able PCB area, and its low thermal resistance keeps assemblies cool. Reducing overall product weight and assembly time, the heat sink uses two solderable tinned brass pins
instead of fixings to secure it. It has a black anodized finish, and has an optimized profile with ridged fins for high surface area and low mass. A TO-220 package resistor may
be fitted to either side of the heat sink as the thermal performance is
WMHP-HS series heat sink and power resistors.
the same for both mounting surfaces. Two packages may be fitted, one on each side, provided that the total power dissipated does not exceed the rating of either. A TO-247 package can be fitted to the wider of the two
mounting surfaces. Contact: TT Electronics, 3700
Lane Road, Perry, OH 44081 % 440-352-8961
E-mail:
sales@ttelectronicsamericas.com Web:
www.ttelectronics.com
See at ATX/MD&M West, Booth 2462
See at ATX / MD&M West, Booth 2060
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