1N5985B-1 thru 1N6031B-1
Available on
commercial
versions
Axial-Leaded 500 mW Zener Diodes
DESCRIPTION
Screening in
reference to
MIL-PRF-19500
available
The popular 1N5985B-1 thru 1N6031B-1 series of 0.5 watt Zener voltage regulators provides a
selection from 2.4 to 200 volts in 10%, 5%, 2% and 1% tolerances. These axial-leaded, glass,
DO-35 packaged Zeners are also available in various military equivalent screening levels by
adding a prefix identifier as described in the “part nomenclature” section. 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.
FEATURES
•
•
•
•
•
•
JEDEC registered 1N5985 thru 1N6031 series.
Similar to operating current conditions of the BZX55 Pro Electron series of Zener products in
Europe.
Multiple voltage tolerances are available (see
part nomenclature).
Internal metallurgical bonds.
High-Reliability screened equivalents in reference to MIL-PRF-19500 are available.
RoHS compliant versions available (commercial grade only).
DO-35
(DO-204AH)
Package
Also available in:
DO-213AA
(surface mount)
1N5985BUR-1 – 1N6031BUR-1
APPLICATIONS / BENEFITS
•
•
•
•
•
•
Regulates voltage over a broad operating current and temperature range.
Extensive selection from 2.4 to 200 volts.
Flexible axial-lead mounting terminals.
Non-sensitive to ESD (MIL-STD-750, method 1020).
Minimal capacitance (see
Figure 2).
Inherently radiation hard as described in Microsemi “MicroNote
050”.
MAXIMUM RATINGS
Parameters/Test Conditions
Power Dissipation at 25 C
(Also see derating in
Figure 1)
Junction and Storage Temperature
(2)
Thermal Resistance Junction-to-Lead
(3)
Thermal Resistance Junction-to-Ambient
Forward Voltage @ 200 mA
Solder Temperature @ 10 s
o
Symbol
P
D
T
J
and T
STG
R
ӨJL
R
ӨJA
V
F
T
SP
º
Value
0.5
-65 to +175
250
310
1.1
260
Unit
W
C
C/W
o
C/W
V
O
C
o
o
o
(1)
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
Notes:
1. At T
L
< 50 C 3/8 inch (10 mm) from body or 0.48 W at T
A
< 25 C when mounted on FR4 PC board as
described for thermal resistance above.
2. Junction to lead at 3/8 (10 mm) lead length from body.
3. 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.
T4-LDS-0228, Rev. 1 (111898)
©2011 Microsemi Corporation
Page 1 of 5
1N5985B-1 thru 1N6031B-1
MECHANICAL and PACKAGING
•
•
•
•
•
•
•
CASE: Hermetically sealed axial-lead glass DO-35 (DO-204AH) package.
TERMINALS: Tin-lead or RoHS compliant matte-tin (commercial grade only) 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). Consult factory for quantities.
WEIGHT: 0.2 grams.
See
Package Dimensions
on last page.
PART NOMENCLATURE
MQ
Reliability Level
MQ (reference JAN)
MX (reference JANTX)
MV (reference JANTXV)
CDS (reference JANS)
Blank = commercial
JEDEC type number
See
Electrical Characteristics
table
1N5985
B
-1 (e3)
RoHS Compliance
e3 = RoHS compliant (available
on commercial grade only)
Blank = non-RoHS compliant
Metallurgically Bonded
Zener Voltage Tolerance
A = 10%
B = 5%
C = 2%
D = 1%
Symbol
I
R
I
Z
, I
ZT
, I
ZK
I
ZM
V
F
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.
Maximum Forward Voltage: The maximum forward voltage the device will exhibit at a specified current.
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-0228, Rev. 1 (111898)
©2011 Microsemi Corporation
Page 2 of 5
1N5985B-1 thru 1N6031B-1
ELECTRICAL CHARACTERISTICS
@ 30
o
C Lead Temperature. Lead Length 3/8”.
Nominal
Zener
Voltage
V
Z
@ I
ZT
(Note 2)
Volts
2.4
2.7
3.0
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10
11
12
13
15
16
18
20
22
24
27
30
33
36
39
43
47
51
56
62
68
75
82
91
100
110
120
130
150
160
180
200
Test
Current
I
ZT
Max. Zener Impedance
(Note 1)
Z
ZT
@ I
ZT
Ohms
B,C,D
A
Suffix
Suffix
100
110
100
110
95
100
95
100
90
95
90
95
88
90
70
90
50
88
25
70
10
50
8.0
25
7.0
10
7.0
15
10
18
15
22
18
25
22
32
25
36
32
42
36
48
42
55
48
62
55
70
62
78
70
88
78
95
88
110
95
130
130
170
150
180
170
200
180
225
200
240
225
265
240
280
265
300
280
350
300
400
500
800
650
950
800
1250
950
1400
1250
1700
1400
2000
1700
2350
2000
2700
Z
ZK
@ I
ZK
= 0.25 mA
Ohms
B,C,D
Suffix
1800
1900
2000
2200
2300
2400
2500
2200
2050
1800
1300
750
600
600
600
600
600
600
600
600
600
600
600
600
600
600
600
700
700
800
900
1000
1300
1400
1400
1600
1700
2000
2300
2600
3000
4000
4500
5000
5500
6000
7000
A
Suffix
2000
2200
2300
2400
2500
2500
2500
2500
2500
2200
2050
1800
1300
750
600
600
600
600
600
600
600
600
600
600
600
700
700
800
900
1000
1100
1300
1400
1600
1700
2000
2300
2600
3000
4000
4500
5000
5500
6000
7000
8000
9000
Max. Reverse Leakage Current
I
R
µA
B,C,D
Suffix
100
75
50
25
15
10
5.0
3.0
2.0
2.0
1.0
1.0
0.5
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
@
V
R
Max. dc
Zener
Current
I
ZM
(Note 3)
mA
208
185
167
152
139
128
116
106
98
89
81
74
67
61
55
50
45
42
38
33
31
28
25
23
21
19
17
15
14
13
12
11
9.8
8.9
8.0
7.4
6.7
6.1
5.5
5.0
4.5
4.2
3.8
3.3
3.1
2.8
2.5
Typical
Temp.
Coeff.
of Zener
Voltage
α
VZ
%/
o
C
-0.090
-0.075
-0.070
-0.060
-0.055
-0.045
-0.010
+0.010
+0.025
+0.035
+0.040
+0.044
+0.051
+0.055
+0.061
+0.065
+0.068
+0.073
+0.075
+0.079
+0.080
+0.083
+0.085
+0.087
+0.090
+0.091
+0.093
+0.094
+0.094
+0.095
+0.095
+0.096
+0.096
+0.096
+0.097
+0.097
+0.098
+0.098
+0.099
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
+0.110
JEDEC
Type
Number
1N5985B
1N5986B
1N5987B
1N5988B
1N5989B
1N5990B
1N5991B
1N5992B
1N5993B
1N5994B
1N5995B
1N5996B
1N5997B
1N5998B
1N5999B
1N6000B
1N6001B
1N6002B
1N6003B
1N6004B
1N6005B
1N6006B
1N6007B
1N6008B
1N6009B
1N6010B
1N6011B
1N6012B
1N6013B
1N6014B
1N6015B
1N6016B
1N6017B
1N6018B
1N6019B
1N6020B
1N6021B
1N6022B
1N6023B
1N6024B
1N6025B
1N6026B
1N6027B
1N6028B
1N6029B
1N6030B
1N6031B
mA
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
2.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
A
Suffix
100
100
100
75
50
25
15
10
5.0
3.0
2.0
2.0
1.0
1.0
0.5
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
Volts
B,C,D
A
Suffix
Suffix
1.0
0.5
1.0
0.5
1.0
0.5
1.0
0.5
1.0
0.5
1.0
1.0
1.0
1.0
1.5
1.0
2.0
1.0
3.0
1.5
4.0
2.0
5.2
3.0
6.0
4.0
6.5
5.2
7.0
6.0
8.0
6.5
8.4
7.0
9.1
8.0
9.9
8.4
11
9.1
12
9.9
14
11
15
12
17
14
18
15
21
17
23
18
25
21
27
23
30
25
33
27
36
30
39
33
43
36
47
39
52
43
56
47
62
52
69
56
76
62
84
69
91
76
99
84
114
91
122
99
137
114
152
122
T4-LDS-0228, Rev. 1 (111898)
©2011 Microsemi Corporation
Page 3 of 5
1N5985B-1 thru 1N6031B-1
NOTES:
1. Zener impedance is derived from the 1 kHz ac voltage which results when an ac current having an rms value equal to 10% of dc Zener
current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. See “MicroNote
202”
for dynamic impedance variation with other operating currents.
2.
3.
Voltage measurements to be performed 20 seconds after application of the dc test current.
The maximum Zener current I
ZM
shown is for the nominal voltages. The following formula can be used to determine the worst case
current for any tolerance device:
P
I
ZM
=
V
ZM
Where V
ZM
is the high end of the voltage tolerance specified and P is the rated power of the device.
GRAPHS
Pd, Rated Power Dissipation (mW)
T
L
Lead Temperature at 3/8” From Body
or T
A
on FR4 PC Board
Typical Capacitance in Pico Farads (pF)
Zener Voltage V
Z
FIGURE 1
POWER DERATING CURVE
FIGURE 2
CAPACITANCE vs. ZENER VOLTAGE (TYPICAL)
T4-LDS-0228, Rev. 1 (111898)
©2011 Microsemi Corporation
Page 4 of 5
1N5985B-1 thru 1N6031B-1
PACKAGE DIMENSIONS
Ltr
BD
BL
LD
LL
LL
1
DIMENSION
INCH
MILLIMETERS
Min
Max
Min
Max
.055
.090
1.40
2.29
.120
.200
3.05
5.08
.018
.022
0.46
0.56
1.000
1.500
25.40
38.10
.050
1.27
Notes
3
3
4
NOTES:
1. Dimensions are in inch.
2. Millimeters are given for general information only.
3. Package contour optional within BD and length BL. Heat slugs, if any, shall be included within this cylinder
but shall not be subject to minimum limit of BD. The BL dimension shall include the entire body including
slugs.
4. W ithin this zone lead, diameter may vary to allow for lead finishes and irregularities other than heat slugs.
5. In accordance with ASME Y14.5M, diameters are equivalent to
Φx
symbology.
T4-LDS-0228, Rev. 1 (111898)
©2011 Microsemi Corporation
Page 5 of 5
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