The following abbreviations or symbols are used in the column headings in the individual Recognitions:
Abbreviation Term
Cond Width Conductor Width
DS Double or single sided
Max Area Diam Maximum Area Diameter
Max Oper Temp Maximum Operating Temperature
Min Minimum
Min Edge Minimum Edge Conductor Width
SS Single sided
Secs Seconds
Sold Lts Soldering Limits
Cond Thk Conductor Thickness
Flame Class ANSI/UL 94 Flammability Classification
Dir. Sup. Direct Support of Current-carrying Parts
CTI Comparative Tracking Index
A triangle symbol is marked on those products within a given type designation that comply with direct support of current-carrying parts performance level requirements of ANSI/UL 796. "All" is used to indicate that all base materials under that type designation comply with direct support of current-carrying parts performance level requirements of ANSI/UL 796.
The CTI PLC rating of a printed wiring board may be marked on the board or a CTI rating may be assigned to a type designation.
RELATED PRODUCTS
See the following:
Plastics (QMFZ2)
Polymeric Materials - Filament-wound Tubing, Industrial Laminates, Vulcanized Fiber, and Materials for Use in Fabricating Recognized Printed Wiring Boards (QMTS2)
Coatings for Use on Recognized Printed Wiring Boards (QMJU2)
Wiring, Printed - Flexible Material Constructions (ZPXK2)
REQUIREMENTS
The basic standard used to investigate products in this category is ANSI/UL 796, "Printed-Wiring Boards," and ANSI/UL 796F, "Flexible Materials Interconnect Constructions."
UL MARKING
Printed wiring boards Recognized under UL's Component Recognition Program are identified by significant markings consisting of the Recognized company's identification, the factory identification (if the printed wiring board is produced at more than one location), and the Recognized type designation that correspond with the marking specified in UL's published records. Only those components that actually bear the "Marking" shown in the individual Recognitions should be considered as being covered under the Component Recognition Program.
The Listing or Classification Mark of UL is not authorized for use on, or in connection with, Recognized Components.
(一) FR-4,FR-4.1,FR-5单面板及双面板认证申请
(二) cem-1,cem-3单面板及双面板申请
(三) FR-1,FR-3单面板及双面板申请
(四) FR-4多层板申请
(五) 单面铝基板仅燃烧认证和全认证申请
(六) 双面铝基板仅燃烧认证和全认证申请
(七) 多层铝基板仅燃烧认证和全认证申请
(八) 铜基板 单面,双面,多层 仅燃烧认证和全认证申请
(九) 柔性线路板(软板)仅燃烧认证和全认证申请
(十) 软硬结合板仅燃烧认证和全认证申请
(十一) 线路板基材认证申请
(十二) 线路板油墨认证申请
(十三) 覆盖膜,电磁膜,屏蔽膜认证申请
(十四) 已有UL,增加CUL认证申请
(十五) 其他认证申请
(十六) XPC板材 22f板材 HB板材 V0板材
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