1N5221 thru 1N5281,e3 DO-7
500 mW GLASS AXIAL-LEAD
ZENER DIODES
SCOTTSDALE DIVISION
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.
DO-7
(DO-204AA)
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-PRF19500 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)
• RoHS Compliant devices available by adding “e3” suffix
• 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: -65 C to +175 C
• Thermal Resistance: 300 ºC/W junction to lead at 3/8
(10 mm) lead length from body, or 360ºC/W junction
to ambient when mounted on FR4 PC board (1 oz Cu)
with 4 mm2 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 < 25ºC 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 ºC for 10 s (max)
º
JEDEC
Type No.
Note 1
Test
Current
IZT
mA
1N5221
1N5222
1N5223
1N5224
1N5225
1N5226
1N5227
1N5228
1N5229
1N5230
2.4
2.5
2.7
2.8
3.0
3.3
3.6
3.9
4.3
4.7
20
20
20
20
20
20
20
20
20
20
Copyright © 2005
8-29-2005 REV B
Max Zener Impedance
A & B Suffix Only
Note 2
ZZT @ IZK
Ohms
30
30
30
30
29
28
24
23
22
19
Max Reverse Current
A, B, C & D Suffix Only
IR
μA
VR
Volts
A
ZZK @ IZK = 0.25
mA
Ohms
1200
1250
1300
1400
1600
1600
1700
1900
2000
1900
@
Non-Suffix
100
100
75
75
50
25
15
10
5.0
50
B,C & D
IR @ VR Used
For Suffix A
μA
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
1.9
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0
200
200
150
150
100
100
100
75
50
50
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Max Zener
Voltage Temp.
Coeff.
(A & B Suffix
Only)
αVZ (% / oC)
Note 3
-0.085
-0.085
-0.080
-0.080
-0.075
-0.070
-0.065
-0.060
+/-0.055
+/-0.030
Page 1
1N5221─1N5281B, e3 DO-7
• CASE: Hermetically sealed axial-lead glass DO-7
(DO-204AA) package
• FINISH: Tin-Lead or RoHS Compliant annealed
matte-Tin plating 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
º
ELECTRICAL CHARACTERISTICS @ 25°C
Nominal
Zener
Voltage
VZ @ IZT
Volts
WWW . Microsemi .C OM
DESCRIPTION
