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參數(shù)資料
| 型號(hào)： | WPSCDS-058ETF |
| 元件分類： | 浪涌電流限制器 |
| 英文描述： | 77 V, SILICON SURGE PROTECTOR, DO-214AA |
| 封裝： | LEAD FREE, PLASTIC, SMB, 2 PIN |
| 文件頁(yè)數(shù)： | 10/14頁(yè) |
| 文件大?。?/td> | 320K |
| 代理商： | WPSCDS-058ETF |
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THYRISTORS
World Products Inc. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.com
Rev. 1.7 (3-30-05)
Protection Products Catalog | 171
Application Notes
Features
Protects by Limiting voltages and shunting surge currents away from sensitive circuits.
Designed for telecommunications applications such as line cards, modems, PBX, FAX, LAN,
VHDSL.
Helps meet standards such as GR1089, ITU K.20, IEC950, UL1459&50, FCC part 68.
Low capacitance, High surge (C, D, E rating available), precise voltage limiting, Long life.
Selection Guide
Follow these steps to select the proper Thyristor surge protector for your application:
1. Dene the operating parameters for the circuit:
Ambient operating temperature range
Maximum telephone line operating current (highest battery and shortest copper loop)
Maximum operating voltage: (Maximum DC bias + peak ringing voltage)
Maximum surge current
System voltage damage threshold
2. Select device with an off-state voltage rating (VDRM) above the maximum operating voltage at the
minimum operating temperature
3. Select surge current ratings (I
PPS and ITSM) > those which the application must withstand
4. Verify that the minimum holding current of the device at the maximum ambient temperature is
above the maximum dc current of the system
5. Verify that the maximum breakover voltage of the device is below the system damage threshold.
6. Verify that the circuit’s ambient operating temperatures are within the device’s operating
temperature range.
7. Verify that the device’s dimensions t the application’s space considerations.
8. Independently evaluate and test the suitability and performance of the device in the application
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