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参数资料
| 型号： | JAN1N4564R |
| 厂商： | Microsemi Corporation |
| 元件分类： | 参考电压二极管 |
| 英文描述： | Low Current Operation at 250??A???Low Reverse Leakage,Low Noise Zener Diode(250??A?·￥?????μ?μ?????°????????????μ?μ?????????a?￡°???é???o3?o???????) |
| 中文描述： | 在250μA低电流操作，低反向漏，低噪声稳压二极管（250μA工作电流，小反向漏电流，低噪声，齐纳二极管） |
| 文件页数： | 3/4页 |
| 文件大小： | 236K |
| 代理商： | JAN1N4564R |
50 Watt Zener Diodes
SCOTTSDALE DIVISION
1N2804 thru 1N2846B and
1N4557 thru 1N4564B
W
M
.
C
1
1
NOTES:
1.
The JEDEC type numbers shown (B suffix) have a +/- 5% tolerance on nominal zener voltage. The suffix A is used to identify +/-10%
tolerance; no suffix indicates +/-20% tolerance. If tighter tolerance is required, consult factory. Standard polarity units have the anode
connected to the case. Reverse polarity (cathode-to-case) units are available and are indicated by suffix R in the part number.
Zener Voltage (V
Z
) is measured with junction in thermal equilibrium with 30
o
C base temperature. The test currents (I
ZT
) have been selected
so that at nominal voltages the dissipation is a constant 12.5 watts. This results in a nominal junction temperature rise of 18.75
C .
The zener impedance is derived from the 60 cycle ac voltage, which results when an ac current having an rms value equal to 10% of the dc
zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener impedance is measured at 2 points to ensure a sharp knee on the breakdown
curve and to eliminate unstable units. A curve showing the variation of zener impedance vs. zener current for six representative types is
shown in Figure 3. Also see MicroNote 202 for further information.
The values of I
ZM
are calculated for a +/-5% tolerance on nominal zener voltage. Allowance has been made for the rise in zener voltage
above V
ZT
that results from zener impedance and the increase in junction temperature as power dissipation approaches 50 watts. In the
case of individual diodes, I
ZM
is that value of current that results in a dissipation of 50 watts.
2.
3.
4.
GRAPHS AND CIRCUITS
Typical circuit connections for anode-to-case and
cathode-to-case polarities (standard and reverse
polarities, respectively).
R
Case
Temperature
o
C
FIGURE 2
POWER DERATING CURVE
FIGURE GROUP 3
TYPICAL ZENER IMPEDANCE vs. ZENER CURRENT FOR TYPES SHOWN
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
Copyright
2003
11-12-2003 REV A
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| JAN1N4565A-1 | 制造商:Aeroflex 功能描述:Diode Zener Single 6.4V 5% 500mW 2-Pin DO-35 制造商:Aeroflex / Metelics 功能描述:0TC REFERENCE VOLTAGE ZENER - Bulk 制造商:Microsemi Corporation 功能描述:ZENER SGL 6.4V 5% 500MW 2PIN DO-35 - Bulk |
| JAN1N4565AUR-1 | 制造商:Aeroflex 功能描述:Diode Zener Single 6.4V 5% 500mW 2-Pin DO-213AA 制造商:Aeroflex / Metelics 功能描述:0TC REFERENCE VOLTAGE ZENER - Bulk 制造商:Microsemi Corporation 功能描述:ZENER SGL 6.4V 5% 500MW 2PIN DO-35 - Bulk |
| JAN1N4566A | 制造商:Microsemi Corporation 功能描述:ZENER VOLTAGE REGULATOR DIODE - Bulk |
| JAN1N4566A-1 | 制造商:Aeroflex 功能描述:Diode Zener Single 6.4V 5% 500mW 2-Pin DO-35 制造商:Aeroflex / Metelics 功能描述:0TC REFERENCE VOLTAGE ZENER - Bulk 制造商:Microsemi Corporation 功能描述:ZENER SGL 6.4V 5% 500MW 2PIN DO-35 - Bulk |
| JAN1N4566AUR-1 | 制造商:Aeroflex 功能描述:Diode Zener Single 6.4V 5% 500mW 2-Pin DO-213AA 制造商:Aeroflex / Metelics 功能描述:0TC REFERENCE VOLTAGE ZENER - Bulk 制造商:Microsemi Corporation 功能描述:ZENER SGL 6.4V 5% 500MW 2PIN DO-35 - Bulk |
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