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參數(shù)資料
| 型號： | 1N4564RA |
| 廠商： | MICROSEMI CORP-LAWRENCE |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | 32-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS 96-LFBGA -40 to 85 |
| 中文描述： | 7.5 V, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, TO-204AD |
| 封裝： | HERMETIC SEALED, TO-3, 2 PIN |
| 文件頁數(shù)： | 3/4頁 |
| 文件大小： | 236K |
| 代理商： | 1N4564RA |
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 1N4564RB | 32-BIT DUAL-SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS 96-LFBGA -40 to 85 |
| 1N2820R | Low Current Operation at 250??A???Low Reverse Leakage,Low Noise Zener Diode(250??A?·￥?????μ?μ?????°????????????μ?μ?????????a?￡°???é???o3?o???????) |
| 1N2927 | GERMANIUM TUNNEL DIODE |
| 1N3037DTRUR-1 | surface mount silicon Zener diodes |
| 1N3035DUR-1 | surface mount silicon Zener diodes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 1N4564RB | 制造商:Microsemi Corporation 功能描述:DIODE ZENER 7.5V 50W TO-204AD |
| 1N4565 | 制造商:Microsemi Corporation 功能描述:ZENER SGL 6.4V 5% 500MW 2PIN DO-35 - Bulk |
| 1N4565-1 | 制造商:Microsemi Corporation 功能描述:ZENER SGL 6.4V 5% 500MW 2PIN DO-35 - Bulk |
| 1N4565-1-1 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:6.4 Volt Temperature Compensated Zener Reference Diodes |
| 1N4565-1-2 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:6.4 Volt Temperature Compensated Zener Reference Diodes |
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