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MMBD717WS

按此還有更多 0.2A Schottky Barrier Rectifier Diode

PDF File 0.2A MMBD717WS SOD-323 (20V)

SINLOON 蕭特基二極管 MMBD717WS  SOD-323 (20V 0.2A )
0.2A SURFACE MOUNT SCHOTTKY BARRIER DIODE
FEATURE: MECHANICAL CHARACTERISTICS:
Fast Switching Case: SOD-323 Molded Plastic
Low Turn-on Voltage Marking: Body top
Very small SMD package Polarity: Cathode Band.
Designed for Surface Mount Application Weight: 0.004 Grams (approx)
PN Junction Guard Ring for Transient and ESD Protection. Terminals: Plated leads solderable per MIL-STD-202, Method 208.
Plastic Material - UL Recognition Flammability Classification 94V-0 Lead Free for RoHS Lead free version and "LF" suffix to part number.
Maximum Ratings ans Electrical Characteristics Single Diode @TA=25 unless otherwise specified
Characteristics Symbol BAS70WS Unit
Peak Repetitive Reverse Voltage VRRM 20 V
Working Peak Reverse Voltage VRWM
DC Blocking Voltage VR
Forward Continuous Current (Note1) IF 200 mA
Forward Surge Current   @t<1.0s IFSM 600 mA
Power Dissipation (Note1) Pd 200 mW
Typical Thermal Resistance, Junction to Ambient Air (Note1) RθJA 625 /W
Operating and Storage Temperature Range TJ, TSTG -55+125
Note1: Device on fiberglass substrate. Return to Schottky Diode First Page
Refer SOD-323 standard mounting conditions.
 
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Newsflash

功率因數調整 (PFC)
-
  • 何謂 PFC?
  • Power Factor Correction (PFC)
-

功率因素調整二極體之應用介紹

功率因素調整(PFC)Power Factor Correction,用來表示電子産品對於電力的利用效率,是指有效功率除與總耗電量的比值,其原理主要是調整交流電輸入電流之波形,盡可能與直流電電壓波形盡可能一致,其計算出來的功率因素值越高(趨近於1),代表其電源利用率越大,電能轉換效率也越好。 一般電子設備沒有功率因素校正(Power Factor Correction, PFC)時其PF值約只有0.5

目前市面上有PFC的電源產品有兩種,一種為被動式(Passive)PFC,另外一種為主動式(Active)PFC.其中主動式PFC提高電力轉換效率,降低設備所傳導之電流損耗,比被動式更高效率,降低視在功率,讓電力的消耗更少,響應環保。電子3C產品逐漸多採用主動式PFC的元件設計使產品更輕薄短小高效率以符合市場趨勢

Power Factor