1N5221BUR-1 thru 1N5281BUR-1
Available on
commercial
versions
METALLURGICALLY BONDED GLASS
SURFACE MOUNT 500 mW ZENERS
DESCRIPTION
Screening in
reference to
MIL-PRF-19500
available
The 1N5221BUR-1 thru 1N5281BUR-1 series of 0.5 watt Zener voltage regulators provides a
surface mount equivalent to the popular JEDEC registered 1N5221 to 1N5281 series for 2.4 to
200 volts in a metallurgically bonded configuration. They are available with standard 5% or
10% tolerances as well as tighter tolerances identified by different suffix letters on the part
number. Microsemi also offers numerous other Zener products to meet higher and lower
power applications.
Important:
For the latest information, visit our website
http://www.microsemi.com.
DO-213AA Package
FEATURES
•
•
•
•
•
•
Surface mount equivalent of JEDEC registered 1N5221 thru 1N5281 series.
Voltage tolerances of 10%, 5%, 2%, and 1% available.
Hermetically sealed surface mount package.
Internal metallurgical bond.
Up-screening in reference to MIL-PRF-19500 is available. (See
part nomenclature
for all available
options.)
RoHS compliant versions available (commercial grade only).
Also available in:
DO-35
(DO-204AH)
(axial-leaded)
1N5221B-1 thru 1N5281B-1
APPLICATIONS / BENEFITS
•
•
•
•
•
Regulates voltage over a broad operating current and temperature range.
Extensive selection from 2.4 to 200 V.
Non-sensitive to ESD (MIL-STD-750 method 1020).
Minimal capacitance (see
Figure 3).
Inherently radiation hard per Microsemi “MicroNote
050”.
MAXIMUM RATINGS
Parameters/Test Conditions
Junction and Storage Temperature
(1)
Thermal Resistance Junction-to-Ambient
Thermal Resistance Junction-to-End Cap
(2)
Steady-State Power Dissipation
Forward Voltage @ 200 mA
Solder Temperature @ 10 s
Symbol
T
J
and T
STG
R
ӨJA
R
ӨJEC
P
D
V
F
T
SP
Value
-65 to +175
250
100
0.5
1.1
260
Unit
C
C/W
o
C/W
W
V
o
C
o
o
Notes:
1. When mounted on FR4 PC board (1 oz Cu) with recommended footprint (see last page).
2. At end cap temperature T
EC
< 125
o
C or ambient temperature T
A
< 50
º
C when mounted on FR4 PC
board as described for thermal resistance above (see
Figure 2
for derating).
MSC – Lawrence
6 Lake Street,
Lawrence, MA 01841
Tel: 1-800-446-1158 or
(978) 620-2600
Fax: (978) 689-0803
MSC – Ireland
Gort Road Business Park,
Ennis, Co. Clare, Ireland
Tel: +353 (0) 65 6840044
Fax: +353 (0) 65 6822298
Website:
www.microsemi.com
T4-LDS-0232-1, Rev. 1 (111957)
©2011 Microsemi Corporation
Page 1 of 6
1N5221BUR-1 thru 1N5281BUR-1
MECHANICAL and PACKAGING
•
•
•
•
•
•
•
CASE: Hermetically sealed glass DO-213AA (SOD80 or MLL34) MELF style package.
TERMINALS: End caps tin-lead or RoHS compliant annealed matte-tin plating (commercial grade only) solderable per MIL-STD-
750, method 2026.
MARKING: Cathode band only.
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.
TAPE & REEL option: Standard per EIA-481-B (add “TR” suffix to part number). Consult factory for quantities.
WEIGHT: 0.04 grams.
See
Package Dimensions
on last page.
PART NOMENCLATURE
MQ
Reliability Level
MQ (reference JAN)
MX (reference JANTX)
MV (reference JANTXV)
MSP (reference JANS)
Blank = Commercial
JEDEC type number
(see
Electrical Characteristics
table)
Zener Voltage Tolerance
A = 10%
B = 5%
C = 2%
D = 1%
1N5221 B UR -1 (e3)
RoHS Compliance
e3 = RoHS Compliant (available
on commercial grade only)
Blank = non-RoHS Compliant
Metallurgically Bonded
Surface Mount Package
Symbol
I
R
I
Z
, I
ZT
, I
ZK
I
ZM
T
SP
V
R
V
Z
Z
ZT
or Z
ZK
SYMBOLS & DEFINITIONS
Definition
Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and temperature.
Regulator Current: The dc regulator current (I
Z
), at a specified test point (I
ZT
), near breakdown knee (I
ZK
).
Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating.
Temperature Solder Pad: The maximum solder temperature that can be safely applied to the terminal.
Reverse Voltage: The reverse voltage dc value, no alternating component.
Zener Voltage: The Zener voltage the device will exhibit at a specified current (I
Z
) in its breakdown region.
Dynamic Impedance: The small signal impedance of the diode when biased to operate in its breakdown region at a
specified rms current modulation (typically 10% of I
ZT
or I
ZK
) and superimposed on I
ZT
or I
ZK
respectively.
T4-LDS-0232-1, Rev. 1 (111957)
©2011 Microsemi Corporation
Page 2 of 6
1N5221BUR-1 thru 1N5281BUR-1
ELECTRICAL CHARACTERISTICS
@ 25 C unless otherwise noted.*
INDUSTRY
PART
NUMBER
(Notes 1 & 4)
1N5221BUR-1
1N5222BUR-1
1N5223BUR-1
1N5224BUR-1
1N5225BUR-1
1N5226BUR-1
1N5227BUR-1
1N5228BUR-1
1N5229BUR-1
1N5230BUR-1
1N5231BUR-1
1N5232BUR-1
1N5233BUR-1
1N5234BUR-1
1N5235BUR-1
1N5236BUR-1
1N5237BUR-1
1N5238BUR-1
1N5239BUR-1
1N5240BUR-1
1N5241BUR-1
1N5242BUR-1
1N5243BUR-1
1N5244BUR-1
1N5245BUR-1
1N5246BUR-1
1N5247BUR-1
1N5248BUR-1
1N5249BUR-1
1N5250BUR-1
1N5251BUR-1
1N5252BUR-1
1N5253BUR-1
1N5254BUR-1
1N5255BUR-1
1N5256BUR-1
1N5257BUR-1
1N5258BUR-1
1N5259BUR-1
1N5260BUR-1
1N5261BUR-1
1N5262BUR-1
1N5263BUR-1
1N5264BUR-1
1N5265BUR-1
1N5266BUR-1
1N5267BUR-1
1N5268BUR-1
1N5269BUR-1
1N5270BUR-1
1N5271BUR-1
1N5272BUR-1
1N5273BUR-1
1N5274BUR-1
1N5275BUR-1
1N5276BUR-1
1N5277BUR-1
1N5278BUR-1
1N5279BUR-1
1N5280BUR-1
1N5281BUR-1
o
Nominal
Zener
Voltage
V
Z
@ I
ZT
(Note 2)
Volts
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
Test
Current
I
ZT
Max Zener Impedance
Max Reverse Leakage
Current
I
R
µA
100
100
75
75
50
25
15
10
5.0
50
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
V
R
Volts
B,C & D
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
Z
ZT
@ I
ZT
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
0.95
0.90
0.85
0.80
0.74
0.68
0.66
0.65
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
= 0.25 mA
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
Max Zener
Voltage
Temp. Coeff.
(Note 3)
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
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
*
T
A
= +25
o
C unless otherwise noted. Based on dc measurements at thermal equilibrium; case temperature maintained at 30 +/- 2
o
C.
V
F
= 1.1 V max @ I
F
= 200 mA for all types. See further notes on following page.
T4-LDS-0232-1, Rev. 1 (111957)
©2011 Microsemi Corporation
Page 3 of 6
1N5221BUR-1 thru 1N5281BUR-1
NOTE 1:
Table as shown lists type numbers, which indicate a tolerance of +/- 5%. 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.
NOTE 2:
The electrical characteristics are measured after allowing the device to stabilize for 20 seconds.
NOTE 3:
Temperature coefficient (α
vz
). Test conditions for temperature coefficient are as follows:
a.
I
ZT
= 20 mA, T
1
= 25
o
C,
o
T
2
= 125 C (1N5221AUR-1 & BUR-1 thru 1N5242AUR-1 & BUR-1)
I
ZT
= Rated I
ZT
, T
1
= 25
o
C,
T
2
= 125
o
C (1N5243AUR-1 & BUR-1 thru 1N5281AUR-1 & BUR-1)
b.
Device to be temperature stabilized with current applied prior to reading breakdown voltage at the specified ambient temperature.
T4-LDS-0232-1, Rev. 1 (111957)
©2011 Microsemi Corporation
Page 4 of 6
1N5221BUR-1 thru 1N5281BUR-1
GRAPHS
Pd, Rated Power
Dissipation (mW)
T
EC
T
A
T
EC
End Cap Temperature (ºC), or
T
A
Ambient Temperature on FR4 PC Board
FIGURE 1
POWER DERATING CURVE
Nominal Zener Voltage (Volts)
FIGURE 2
ZENER VOLTAGE TEMPERATURE
COEFFICIENT vs. ZENER VOLTAGE
Typical Capacitance In Picofarads (pF)
Zener Voltage V
Z
FIGURE 3
CAPACITANCE vs. ZENER VOLTAGE (TYPICAL)
T4-LDS-0232-1, Rev. 1 (111957)
©2011 Microsemi Corporation
Page 5 of 6
Temperature Coefficient mV/
o
C
Temperature Coefifcient %/
o
C
MicroPython Open Source section
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