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參數(shù)資料
| 型號(hào)： | P3203ACMC |
| 英文描述： | solid state crowbar devices |
| 中文描述： | 固態(tài)撬棍設(shè)備 |
| 文件頁(yè)數(shù)： | 140/212頁(yè) |
| 文件大?。?/td> | 1877K |
| 代理商： | P3203ACMC |
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UL 60950 3rd Edition (formerly UL 1950, 3rd edition)
http://www.teccor.com
+1 972-580-7777
4 - 16
2002 Teccor Electronics
SIDACtor
Data Book and Design Guide
UL 60950 3rd Edition
(formerly UL 1950, 3rd edition)
After the divestiture of the AT&T/Bell system, the National Electric Code (NEC)
implemented Article 800-4, which mandates that “all equipment intended for connection to
the public telephone network be listed for that purpose” in order to ensure electrical safety.
A manufacturer can meet this requirement by listing their product with Underwriters
Laboratories under UL 60950 (based on IEC 60950, 3rd edition).
NEC requires all telecommunication wiring that enters a building to pass through a primary
protector, which is designed to limit AC transients in excess of 600 V rms. These transients
are due to the fact that telephone lines run in close proximity to AC power lines. Most
telecommunication equipment uses a secondary overvoltage protector such as the
SIDACtor
device. The secondary devices typically limit transients in excess of 350 V rms.
Therefore, a potentially dangerous condition exists because of the voltage threshold
difference of the primary protector and the secondary protector. To minimize this danger,
compliance with UL 60950 overvoltage tests is required.
UL 60950 covers equipment with a rated voltage (primary power voltage) not exceeding
600 V and equipment designed to be installed in accordance with NEC NFPA 70. This
standard does not apply to air-conditioning equipment, fire detection equipment, power
supply systems, or transformers.
The effective date of UL 60950 allows new products submitted through April 1, 2003 to be
evaluated using the requirements of either UL 60950 or UL 1950, 3rd edition. After April 1,
2003, all new product submittals must be evaluated using only UL 60950.
Products certified by UL to requirements of UL 1459 prior to April 1, 2000 may continue to
be certified without further reinvestigation until April 1, 2005, provided no significant
changes or revisions are made to the products. Products certified by UL to requirements of
UL 1950 3rd edition prior to April 1, 2003 may continue to be certified without further
reinvestigation until April 1, 2005.
In order to have the UL Mark applied after April 1, 2005, all products, including those
previously certified by UL, must comply with UL 60950.
UL 69050 is intended to prevent injury or harm due to electrical shock, energy hazards, fire,
heat hazards, mechanical hazards, radiation hazards, and chemical hazards.
It defines three classes of equipment:
Class 1 — protection achieved by basic insulation
Class 2 — protection achieved by double or reinforced insulation
Class 3 — protection relying upon supply from SELV circuits (voltages up to 40 V peak
or 60 V dc)
UL 60950 also defines five categories of insulation:
Functional
Basic
Supplementary
Reinforced
Double
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| P3203U | solid state crowbar devices |
| P3203Z | solid state crowbar devices |
| P3206U | solid state crowbar devices |
| P3403A | solid state crowbar devices |
| P3403ACMC | solid state crowbar devices |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P3203ACMCL | 功能描述:硅對(duì)稱(chēng)二端開(kāi)關(guān)元件 3Chp 270V 500A RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）: 保持電流（Ih 最大值）:50 mA 開(kāi)啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA |
| P3203ACMCLXX | 制造商:LITTELFUSE 制造商全稱(chēng):Littelfuse 功能描述:Balanced MC Series Modified TO-220 are low capacitance SIDACtor? devices |
| P3203ACRP | 功能描述:硅對(duì)稱(chēng)二端開(kāi)關(guān)元件 3Chp 270V 500A RoHS:否 制造商:Bourns 轉(zhuǎn)折電流 VBO:40 V 最大轉(zhuǎn)折電流 IBO:800 mA 不重復(fù)通態(tài)電流: 額定重復(fù)關(guān)閉狀態(tài)電壓 VDRM:25 V 關(guān)閉狀態(tài)漏泄電流（在 VDRM IDRM 下）: 保持電流（Ih 最大值）:50 mA 開(kāi)啟狀態(tài)電壓:5 V 關(guān)閉狀態(tài)電容 CO:120 pF 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DO-214AA |
| P3203R-1W1B | 制造商:ostby barton ect div. 功能描述: |
| P3203U | 制造商:TECCOR 制造商全稱(chēng):TECCOR 功能描述:solid state crowbar devices |
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