User's Manual

Viewsonic Tweety RF Remote
Rev 2.9A November 05, 2001
Universal Electronics Inc. Confidential
Page 48 of 63
Impact:
Izod Impact @ 73°F 3.1-7.5 ft-lb/in (170-400 J/m)
Izod Impact @ -40°F 1.2-2.6 ft-lb/in (65-140 J/m)
Flame Class Rating:
UL94HB 0.0579-0.0630 in. (1.47-1.6mm)
7.2.3 Texture
Texture shall be Mold-Tech MT-11010 or UEI engineering approved
equivalent as follows:
UEI SPEC. HONG KONG CHINA SIN OR MEXICO
KOREA
(MOLD-TECH) (YICK SANG) (HON NGAI) (PHILIPS)
(KYUNG SUNG)
MT-11010 D-428 MK-111 9-410-UN-D249
K-112G
7.2.4 Color
The Pantone Matching System (PMS) will be used as the general UEI color standard. Refer to the
“Pantone Color Formula Guide 1000” for specific color selection and color coordination.
7.3 Keypad with Polydome
For further detailed information, see the UEI Keypad Design Guideline Manual
(Spec. # 0004).
7.3.1 Material
The keypad is usually molded from compression molded silicon rubber. The
recommended material shall be 50 to 60 shore A hardness, which provides good tactile
feel and long life.
Physical
Specific Gravity @ 25C 1.1-1.4
Durometer (Shore A) 55 ± 5
Tensile Strength 55 - 75 kg/cm
2
Compression Set % 11 - 22
Insulation Breakdown 26 kV/mm
Flame Class Rating
UL94HB
The Polydome assembly is a die cut Polyethylene terephthalate (PET) sheets. It contains
0.05mm main dome sheet, adhesive, and 0.1mm spacer. The travel and tactile feed back
are provided by the main dome sheet.
7.3.2 Tactile Feel
The switch should operate smoothly throughout its entire travel with good tactile feedback.