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SR845

SR845

  • 厂商:

    CHENG-YI

  • 封装:

  • 描述:

    SR845 - MINIATURE SCHOTTKY BARRIER RECTIFIER - CHENG-YI ELECTRONIC CO., LTD.

  • 详情介绍
  • 数据手册
  • 价格&库存
SR845 数据手册
SR820 thru SR860 SK820 thru SK860 MINIATURE SCHOTTKY BARRIER RECTIFIER CHENG- YI ELECTRONIC VOLTAGE RANGE 20 TO 80 Volts CURRENT 8.0 Amperes TO-220AC FEATURES Low switching noise Low forward voltage drop Low thermal resistance High current capability High surge capability High reliability MECHANICAL DATA Case: TO-220A molded plastic Epoxy: UL 94V-0 rate flame retardant Lead: MIL-STD-202 method 208 guaranteed Mounting position: Any MAXIMUM RATINGS ( At TA=25 C unless otherwise noted) 0 Symbol Ratings Maximum Recurrent Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Rectified Current .375" (9.5mm) lead length Peak Forward Surge Current, 8.3 ms single half sine-wave superimposed on rated load (JEDEC method) Typical Thermal Resistance (Note 1) Typical Junction Capacitance (Note 3) Operating Temperature Range Storage and Operating Temperature Range 0 SR820 SK820 20 14 20 SR830 SK830 30 21 30 SR835 SK835 35 25 35 SR840 SK840 40 28 40 8.0 SR845 SK845 45 32 45 SR850 SK850 50 35 50 SR860 SK860 60 42 60 UNITS UNITS Volts Volts Volts Amps Symbol VRRM VRMS VDC IO IFSM R JC 150 2.5 700 -65 to +125 -65 to +150 450 -65 to +150 Amps 0 C/W pF 0 CJ TJ TSTG Symbol VF IR C C 0 ELECTRICAL CHARACTERISTICS ( At TA=25 C unless otherwise noted) Characteristics Maximum Instantaneous Forward Voltage at 8.0A DC 0 Maximum Average Reverse Cruuent @TA=25 C at Rated DC Blocking Voltage @TA=1000C SK820 SK830 Sk835 .65 SK840 SK845 SK850 .75 SK860 UNITS Volts mAmps mAmps 1.0 30 Notes : 1. Thermal Resistance Junction to Case. 2. Suffix "R" for Reverse Polarity 3. Measured at 1MHz and applied reserse voltage of 4.0 Volts. SR820 thru SR860 SK820 thru SK860 MINIATURE SCHOTTKY BARRIER RECTIFIER CHENG- YI ELECTRONIC RATING AND CHARACTERISTICS CURVES SR820 THRU SR860 SK820 THRU SK860 Fig.1 - TYPICAL FORWARD CURRENT DERATING CURVE AVERAGE FORWARD CURRENT AMPERES 10 8 6 Fig.2 - TYPICAL REVERSE CHARACTERISTICS 10 0 TC=150C INSTANTANEOUS REVERSE CURRENT, (mA) 8 SK 50~ 880 SK 820 SK 4 2 0 0 50 1.0 =1 TC 2 5C 0 K8 ~S 40 100 = TC 75 0 C 150 .1 = TC 25 0 LEAD TEMPERATURE, 0C C Fig.3 - MAXIMUM NON-REPETITIVE FORWARD PEAK FORWARD SURGE CURRENT, (A) .01 SURGE CURRENT 175 150 125 100 75 50 25 1 10 100 8.3ms Single Half Sine Wave JEDEC Method SK820~SK840 SK850~SK880 .001 20 40 60 80 100 120 PERCENT OF RATED PEAK REVERSE VOLTAGE, (%) Fig.4 - TYPICAL INSTANTANEOUS FORWARD CHARACTERISTICS INSTANTANEOUS FORWARD CURRENT, (A) 50 NUMBER OF CYCLES AT 60 Hz SK820~SK840 10 Fig.5 - TYPICAL JUNCTION CAPACIT ANCE JUNCTION CAPACITANCE, (pF) 4000 2000 1000 800 600 400 SK820~SK840 SK850~SK880 1.0 200 100 .1 SK850~SK880 TJ=250C Pulse Width-300 s 1% DUTY CYCLE .1 .1 .2 .3 .4 .5 .6 .7 .8 .9 1.0 1.0 10 100 INSTANTANEOUS FORWARD VOLT AGE, (V) REVERSE VOLTAGE(V)
SR845
1. 物料型号: - 型号包括SR820至SR860和SK820至SK860。

2. 器件简介: - 这是一系列小型肖特基势垒整流器,具有低开关噪声、低正向电压降、低热阻、高电流能力、高浪涌能力和高可靠性等特点。

3. 引脚分配: - 封装为TO-220A,塑封,环氧树脂材料,UL 94V-0级阻燃,引线符合MIL-STD-202方法208保证,可任意位置安装。

4. 参数特性: - 电压范围20至80伏特,电流8.0安培。 - 最大重复峰值反向电压(VRRM)从20伏特至60伏特不等。 - 最大RMS电压(VRMS)从14伏特至42伏特不等。 - 最大DC阻断电压(Voc)与VRRM相同。 - 最大平均正向整流电流为8.0安培(对于0.375"(9.5mm)引线长度)。 - 峰值正向浪涌电流(IFSM)对于SK835为150安培。 - 典型热阻(ROJC)对于SK840为2.5°C/W。 - 典型结电容(CJ)对于SK830为700pF,对于SK845为450pF。 - 工作温度范围(TJ)对于SR系列为-65至+125°C,对于SK系列为-65至+150°C。 - 存储和工作温度范围(TSTG)对于所有型号为-65至+150°C。

5. 功能详解: - 这些整流器能够在高电流下工作,同时保持低噪声和低电压降,适用于需要高可靠性和高浪涌电流的应用。

6. 应用信息: - 适用于高电流和高可靠性要求的电源整流应用。

7. 封装信息: - 封装类型为TO-220A,塑封,环氧树脂材料,UL 94V-0级阻燃。
SR845 价格&库存

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