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參數資料
| 型號： | SZ25B18SMS |
| 廠商： | SOLID STATE DEVICES INC |
| 元件分類： | 齊納二極管 |
| 英文描述： | 18 V, 0.4 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE |
| 封裝： | HERMETIC SEALED, GLASS, SMS, 2 PIN |
| 文件頁數： | 1/2頁 |
| 文件大小： | 121K |
| 代理商： | SZ25B18SMS |
Solid State Devices, Inc.
14701 Firestone Blvd * La Mirada, Ca 90638
Phone: (562) 404-4474 * Fax: (562) 404-1773
ssdi@ssdi-power.com * www.ssdi-power.com
DESIGNER’S DATA SHEET
FEATURES:
Hermetically Sealed in Glass
Axial Lead Rated at 250 mW
Surface Mount Rated at 400 mW
Available in Axial (__), Round Tab Surface Mount (SM)
and Square Tab Surface Mount (SMS) Versions
Available to TX, TXV, and Space Levels 5/
Available in 10% and 5% Tolerances. For other Voltage
Tolerances, Contact Factory.
NOTE: All specifications are subject to change without notification.
SCD's for these devices should be reviewed by SSDI prior to release.
Maximum Ratings
Symbol
Value
Units
Nominal Zener Voltage
VZ
2.4 - 43
V
Zener Current
Axial
SM, SMS
IZM
5.5 - 95
8.25 – 142.5
mA
Continuous Power
Axial
SM, SMS
PD
250
400
mW
Operating and Storage Temp.
Top,
Tstg
-65 to +175
C
Thermal Resistance,
Junction to Lead, L=3/8” (for Axial)
Junction to End Cap (for SM, SMS)
Junction to Ambient (for All)
RθJL
RθJE
RθJA
500
300
600
C/W
Part Number/Ordering Information 4/
SZ25
__
__ __
│
└
│
└
│
└
Screening 5/ __ = Not Screened
TX = TX Level
TXV = TXV
S = S Level (for
SM, use –S)
Package Type
3/
__ = Axial Leaded
SM = Surface Mount Round Tab
SMS = Surface Mount Square Tab
Voltage/Family
2.4 thru 43 = 2.4V thru 43V, See Table on Page 2
Voltage Tolerance
A = 10% Voltage Tolerance
B = 5% Voltage Tolerance
SZ25A2.4
thru
SZ25A43
250mW and 400mW
2.4 – 43 VOLTS
ZENER DIODES
DIM
MIN.
MAX
A
.060”
.090”
B
.120”
.200”
C
1.00”
---
D
.018”
.022”
AXIAL (__)
All dimensions are prior to soldering
DIM
MIN.
MAX.
A
.057”
.067”
B
.130”
.146”
C
.010”
.022”
D
Body to Tab Clearance: .001”
ROUND TAB (SM)
All dimensions are prior to soldering
DIM
MIN.
MAX.
A
.070”
.078”
B
.175”
.210”
C
.023”
.027”
D
Body to Tab Clearance: .001”
SQUARE TAB (SMS) All dimensions are prior to soldering
DATA SHEET #: Z00001L
DOC
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