1N5221UR thru 1N5281BUR, e3
(or MLL5221 thru MLL5281B, e3)
SCOTTSDALE DIVISION
500 mW GLASS SURFACE MOUNT
ZENER DIODES
DESCRIPTION
The 1N5221BUR thru 1N5281BUR series of 0.5 watt Zener Voltage
Regulators provides a surface mount equivalent to the popular JEDEC
registered 1N5221B to 1N5281B for 2.4 to 200 volts in standard 5%
tolerances as well as tighter tolerances identified by different suffix letters on
the part number. These are also available with an internal-metallurgical-
bond option by adding a “-1” suffix (see separate data sheet). 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
APPEARANCE
WWW .
Microsemi
.C
OM
DO-213AA
FEATURES
•
•
•
•
Surface mount equivalents to the JEDEC registered
1N5221 thru 1N5281B series
Hermetically sealed surface mount package
RoHS Compliant devices available by adding “e3” suffix
Internal metallurgical bond option available by adding a
“-1” suffix (see separate data sheet for same part
numbers with “-1” suffix)
DO-7 or DO-35 glass body axial-leaded Zener
equivalents also available per JEDEC registration (see
separate data sheet for part numbers 1N5221 thru
1N5281B series
•
•
•
•
•
•
•
APPLICATIONS / BENEFITS
Regulates voltage over a broad operating
current and temperature range
Selection from 2.4 to 200 V
Standard voltage tolerances are plus/minus 5%
with B suffix identification and 10 % with A suffix
Tight tolerances available in plus or minus 2%
or 1% with C or D suffix respectively
Nonsensitive to ESD per MIL-STD-750 Method 1020
Minimal capacitance (see Figure 3)
Inherently radiation hard as described in Microsemi
MicroNote 050
•
MAXIMUM RATINGS
•
•
Operating and Storage temperature: -65
º
C to +175
º
C
Thermal Resistance: 150
º
C/W junction to end cap
and 300
º
C/W junction to ambient when mounted on
FR4 PC board (1 oz Cu) with recommended footprint
(see last page)
Steady-State Power: 0.5 watts at end cap
temperature T
EC
< 100
o
C or ambient temperature T
A
< 25
º
C when mounted on FR4 PC board as described
for thermal resistance above (see Figure 2 for
derating)
Forward voltage @200 mA: 1.1 volts (maximum)
º
Solder Temperatures: 260 C for 10 seconds (max)
MECHANICAL AND PACKAGING
•
•
CASE: Hermetically sealed glass DO-213AA
(SOD80 or MLL34) MELF style package
FINISH: End caps Tin-Lead or RoHS Compliant
annealed matte-Tin plating solderable per MIL-STD-
750, method 2026
POLARITY: Cathode indicated by band where
diode is to be operated with the banded end positive
with respect to the opposite end for Zener regulation
MARKING: cathode band only
TAPE & REEL option: Standard per EIA-481-B with
12 mm tape, 2000 per 7 inch reel or 5000 per 13
inch reel (add “TR” suffix to part number)
WEIGHT: 0.04 grams
See package dimensions on last page
•
•
•
•
•
•
•
•
1N5221UR thru 1N5281BUR
Copyright
©
2005
8-29-2005 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
1N5221UR thru 1N5281BUR, e3
(or MLL5221 thru MLL5281B, e3)
SCOTTSDALE DIVISION
500 mW GLASS SURFACE MOUNT
ZENER DIODES
ELECTRICAL CHARACTERISTICS*
INDUSTRY
PART
NUMBER
(NOTES 1 & 4)
Nominal
Zener
Voltage
Test
Current
Max Zener Impedance
A and B suffix only
A and B Suffix only
Non-Suffix
Max Reverse Leakage Current
WWW .
Microsemi
.C
OM
I
ZT
V
Z
@ I
ZT
(Note 2)
Volts
mA
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
9.5
9.0
8.5
7.8
7.4
7.0
6.6
6.2
5.6
5.2
5.0
4.6
4.5
4.2
3.8
3.4
3.2
3.0
2.7
2.5
2.2
2.1
2.0
1.8
1.7
1.5
1.4
1.4
1.3
1.1
1.0
.95
.90
.85
.80
.74
.68
.66
.65
Max Zener Voltage
Temperature Coeff.
(A and B Suffix only)
(Note 3)
Z
ZT
@ I
ZT
Ohms
30
30
30
30
29
28
24
23
22
19
17
11
7.0
7.0
5.0
6.0
8.0
8.0
10
17
22
30
13
15
16
17
19
21
23
25
29
33
35
41
44
49
58
70
80
93
105
125
150
170
185
230
270
330
370
400
500
750
900
1100
1300
1500
1700
1900
2200
2400
2500
Z
ZK
@ I
ZK
=
0.25Ma Ohms
1200
1250
1300
1400
1600
1600
1700
1900
2000
1900
1600
1600
1600
1000
750
500
500
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
700
700
800
900
1000
1100
1300
1400
1400
1600
1700
2000
2200
2300
2600
3000
4000
4500
4500
5000
5500
5500
6000
6500
7000
μA
100
100
75
75
50
25
15
10
5.0
5.0
5.0
5.0
5.0
5.0
3.0
3.0
3.0
3.0
3.0
3.0
2.0
1.0
0.5
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
A
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
0.95
1.9
1.9
2.9
3.3
3.8
4.8
5.7
6.2
6.2
6.7
7.6
8.0
8.7
9.4
9.5
10.5
11.4
12.4
13.3
13.3
14.3
16.2
17.1
18.1
20
20
22
24
26
29
31
34
37
41
44
45
49
53
59
65
66
72
80
86
94
101
108
116
123
130
137
144
I
R
@
V
R
Volts
B
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
2.0
2.0
3.0
3.5
4.0
5.0
6.0
6.5
6.5
7.0
8.0
8.4
9.1
9.9
10
11
12
13
14
14
15
17
18
19
21
21
23
25
27
30
33
36
39
43
46
47
52
56
62
68
69
76
84
91
99
106
114
122
129
137
144
152
I
R
@ V
R
Used
for Suffix A
μA
200
200
150
150
100
100
100
75
50
50
50
50
50
50
30
30
30
30
30
30
30
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
α
VZ
(%/
o
C)
-0.085
-0.085
-0.080
-0.080
-0.075
-0.070
-0.065
-0.060
+/-0.055
+/-0.030
+/-0.030
+0.038
+0.038
+0.045
+0.050
+0.058
+0.062
+0.065
+0.068
+0.075
+0.076
+0.077
+0.079
+0.082
+0.082
+0.083
+0.084
+0.085
+0.086
+0.086
+0.087
+0.088
+0.089
+0.090
+0.091
+0.091
+0.092
+0.093
+0.094
+0.095
+0.095
+0.096
+0.096
+0.097
+0.097
+0.097
+0.098
+0.098
+0.099
+0.099
+0.0110
+0.0110
+0.0110
+0.0110
+0.0110
+0.0110
+0.0110
+0.0110
+0.0110
+0.0110
+0.0110
1N5221UR
1N5222UR
1N5223UR
1N5224UR
1N5225UR
1N5226UR
1N5227UR
1N5228UR
1N5229UR
1N5230UR
1N5231UR
1N5232UR
1N5233UR
1N5234UR
1N5235UR
1N5236UR
1N5237UR
1N5238UR
1N5239UR
1N5240UR
1N5241UR
1N5242UR
1N5243UR
1N5244UR
1N5245UR
1N5246UR
1N5247UR
1N5248UR
1N5249UR
1N5250UR
1N5251UR
1N5252UR
1N5253UR
1N5254UR
1N5255UR
1N5256UR
1N5257UR
1N5258UR
1N5259UR
1N5260UR
1N5261UR
1N5262UR
1N5263UR
1N5264UR
1N5265UR
1N5266UR
1N5267UR
1N5268UR
1N5269UR
1N5270UR
1N5271UR
1N5272UR
1N5273UR
1N5274UR
1N5275UR
1N5276UR
1N5277UR
1N5278UR
1N5279UR
1N5280UR
1N5281UR
2.4
2.5
2.7
2.8
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.0
6.2
6.8
7.5
8.2
8.7
9.1
10
11
12
13
14
15
16
17
18
19
20
22
24
25
27
28
30
33
36
39
43
47
51
56
60
62
68
75
82
87
91
100
110
120
130
140
150
160
170
180
190
200
1N5221UR thru 1N5281BUR
*
T
A
= 25
o
C unless otherwise noted. Based on dc measurements at thermal equilibrium; case temperature maintained at 30 +/- 2
o
C.
for all types. See further Notes on following page.
V
F
= 1.1V max @ I
F
= 200 mA
Page 2
Copyright
©
2005
8-29-2005 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
1N5221UR thru 1N5281BUR, e3
(or MLL5221 thru MLL5281B, e3)
SCOTTSDALE DIVISION
500 mW GLASS SURFACE MOUNT
ZENER DIODES
NOTE 1:
NOTE 2:
NOTE 3:
NOTE 4:
Table as shown lists type numbers, which indicate a tolerance of +/-20% with guaranteed limits on only
V
Z
,
I
R
, and
V
F
. Devices with
guaranteed limits on all six parameters are indicated by suffix “A” for +/-10%, “B” for +/-5%, “C” for +/-2%, and “D” for +/-1% tolerance.
The electrical characteristics are measured after allowing the device to stabilize for 20 seconds.
Temperature coefficient (
α
vz
). Test conditions for temperature coefficient are as follows:
I
ZT
= 7.5 mA, T
1
= 25
o
C,
a.
T
2
= 125
o
C (1N5221AUR & BUR thru 1N5242AUR & BUR)
b.
I
ZT
=
Rated
I
ZT
, T
1
= 25
o
C,
T
2
= 125
o
C (1N5243AUR & BUR thru 1N5281AUR & BUR)
Device to be temperature stabilized with current applied prior to reading breakdown voltage at the specified ambient temperature.
These devices may be ordered as either 1N5221UR thru 1N5281BUR or as MLL5221 thru MLL5281B part numbers.
WWW .
Microsemi
.C
OM
GRAPHS
TEMPERATURE COEFFICIENT %/ C
TEMPERATURE COEFFICIENT mV/ C
RATED POWER DISSIPATION
o
Voltage Temperature
o
Coefficient %/ C
T
EC
mV Change /ºC
T
A
T
EC
– End Cap Temperature ( C), or
T
A
Ambient Temperature on FR4 PC BOARD
o
o
NOMINAL ZENER VOLTAGE (VOLTS)
FIGURE 1
POWER DERATING CURVE
FIGURE 2
ZENER VOLTAGE TEMPERATURE
COEFFICIENT vs. ZENER VOLTAGE
PACKAGE DIMENSIONS
DIM
A
B
C
INCHES
MIN
MAX
0.063
0.067
0.130
0.146
0.016
0.022
MILLIMETERS
MIN
MAX
1.60
1.70
3.30
3.70
0.41
0.55
1N5221UR thru 1N5281BUR
A
B
C
INCHES
.200
.055
.080
mm
5.08
1.40
2.03
PAD LAYOUT
FIGURE 3
CAPACITANCE vs. ZENER VOLTAGE
(TYPICAL)
Copyright
©
2005
8-29-2005 REV B
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3
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