參數(shù)資料
型號(hào)： 1N5257D(DO-35)
廠商： MICROSEMI CORP-SCOTTSDALE
元件分類： 參考電壓二極管
英文描述： 33 V, 0.417 W, SILICON, UNIDIRECTIONAL VOLTAGE REGULATOR DIODE, DO-204AA
封裝： HERMETIC SEALED, GLASS, DO-7, 2 PIN
文件頁數(shù)： 1/3頁
文件大?。?/td> 461K
代理商： 1N5257D(DO-35)
500 mW GLASS AXIAL-LEAD
ZENER DIODES
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
Copyright
2003
11-05-2003 REV A
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SCOTTSD A L E DIVISION
1N5221 thru 1N5281, DO-7
1N5
221
─
1N5281
(DO
-7)
DESCRIPTION
APPEARANCE
The popular 1N5221 thru 1N5281B series of 0.5 watt Zener Voltage
Regulators provides a selection from 2.4 to 200 volts in standard 5% or 10%
tolerances as well as tighter tolerances identified by different suffix letters on
the part number. These glass axial-leaded DO-7 Zeners are also available
in various military screening levels by adding a prefix identifier as described
in the Features section.
Microsemi also offers numerous other Zener
products to meet higher and lower power applications.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
FEATURES
APPLICATIONS / BENEFITS
JEDEC registered 1N5221 to 1N5281B
Internally solder bonded
Options for screening in accordance with MIL-PRF-
19500 for JAN, JANTX, JANTXV, and JANS are
available by adding MQ, MX, MV, or MSP prefixes
respectively to part numbers.
Surface mount equivalents available as MLL5221 to
MLL5281B in the DO-213AA MELF style package
(consult factory for others)
Smaller DO-35 glass body axial-leaded Zener
equivalents also available (see separate data sheet)
Regulates voltage over a broad operating current and
temperature range
Extensive selection from 2.4 to 200 V
Standard voltage tolerances are plus/minus 5% with
B suffix, 10 % with A suffix identification
Tight tolerances available in plus or minus 2% or 1%
with C or D suffix respectively
Flexible axial-lead mounting terminals
Nonsensitive to ESD per MIL-STD-750 Method 1020
Minimal capacitance (see Figure 2)
Inherently radiation hard per MicroNote 050
MAXIMUM RATINGS
MECHANICAL AND PACKAGING
Operating and Storage temperature: -65C to +175C
Thermal Resistance: 300 C/W junction to lead at 3/8
(10 mm) lead length from body, or 360
C/W junction
to ambient when mounted on FR4 PC board (1 oz Cu)
with 4 mm
2 copper pads and track width 1 mm, length
25 mm
Steady-State Power: 0.5 watts at TL < 25oC 3/8 inch
(10 mm) from body or 0.417 W at TA < 25
C when
mounted on FR4 PC board as described for thermal
resistance above (also see Figure1)
Forward voltage @200 mA: 1.1 volts (maximum)
Solder Temperatures: 260
C for 10 s (max)
CASE: Hermetically sealed axial-lead glass DO-7
(DO-204AA) package
TERMINALS: Leads, tin-lead plated solderable per
MIL-STD-750, method 2026
POLARITY: Cathode indicated by band. Diode to be
operated with the banded end positive with respect to
the opposite end for Zener regulation
MARKING: Part number
TAPE & REEL option: Standard per EIA-296 (add
“TR” suffix to part number)
WEIGHT: 0.2 grams
See package dimensions on last page
ELECTRICAL CHARACTERISTICS @ 25°C
Max Reverse Current
Max Zener Impedance
A & B Suffix Only
Note 2
A, B, C & D Suffix Only
Non-Suffix
IR
@
VR
A
Volts
JEDEC
Type No.
Note 1
Nominal
Zener
Voltage
VZ @ IZT
Volts
Test
Current
IZT
mA
ZZT @ IZK
Ohms
ZZK @ IZK = 0.25
mA
Ohms
A
B,C & D
IR @ VR Used
For Suffix A
A
Max Zener
Voltage Temp.
Coeff.
(A & B Suffix
Only)
αVZ (% / oC)
Note 3
1N5221
1N5222
1N5223
1N5224
1N5225
2.4
2.5
2.7
2.8
3.0
20
30
29
1200
1250
1300
1400
1600
100
75
50
0.95
1.0
200
150
100
-0.085
-0.080
-0.075
1N5226
1N5227
1N5228
1N5229
1N5230
3.3
3.6
3.9
4.3
4.7
20
28
24
23
22
19
1600
1700
1900
2000
1900
25
15
10
5.0
50
0.95
1.9
1.0
2.0
100
75
50
-0.070
-0.065
-0.060
+/-0.055
+/-0.030
DO-7
(DO-204AA)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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