1N4954US thru 1N4996US, 1N5968US thru
1N5969US, and 1N6632US thru 1N6637US
SCOTTSDALE DIVISION
VOIDLESS-HERMETICALLY-SEALED
Surface Mount 5 WATT GLASS ZENER
DESCRIPTION
T
his surface mount Zener Voltage Regulator series is military qualified to
APPEARANCE
WWW .
Microsemi
.C
OM
MIL-PRF-19500/356 and is ideal for high-reliability applications where a
failure cannot be tolerated. These industry-recognized 5 Watt Zener
Voltage Regulators are hermetically sealed with voidless-glass construction
using an internal metallurgical bond. It includes Zener selections from 3.3
to 390 volts in standard 5% tolerances as well as tighter tolerances
identified by different suffix letters on the part number. They are also
available in axial-leaded packages for thru hole mounting by deleting the
“US” suffix (see separate data sheet for 1N4954 thru 1N4996, 1N5968 thru
1N5969, and 1N6632 thru 1N6637). Microsemi also offers numerous other
Zener products to meet higher and lower power ratings in both thru-hole
and surface mount packages.
IMPORTANT:
For the most current data, consult
MICROSEMI’s
website:
http://www.microsemi.com
“E” Package
(or “D-5B”)
FEATURES
•
•
•
•
Popular JEDEC registered series
Voidless hermetically sealed glass package
Triple-layer passivation
Internal “Category
I”
Metallurgical bonds for
1N4954US thru 1N4996US, and “Category
III”
for
1N6632US thru 1N6637US as well as 1N5968US
thru 1N5959US
JAN, JANTX, JANTXV, and JANS available per MIL-
PRF-19500/356
Axial-leaded equivalents (see separate data sheet for
1N4954 thru 1N4996, 1N6632 thru 1N6637 and
1N5968 thru 1N5969)
•
•
•
•
•
•
•
APPLICATIONS / BENEFITS
Regulates voltage over a broad operating current and
temperature range
Extensive selection from 3.3 to 390 V
Standard voltage tolerances are plus/minus 5% with
no suffix
Tight tolerances available in plus or minus 2% or 1%
with C or D suffix respectively
Extremely robust construction
Nonsensitive to ESD per MIL-STD-750 Method 1020
Inherently radiation hard as described in Microsemi
MicroNote 050
•
•
MAXIMUM RATINGS
•
•
•
Operating (T
J
) Temperature: -65
o
C to +175
o
C.
Storage Temperature: -65
o
C to +175
o
C.
o
Power Dissipation: 5 Watts @ T
EC
= 140 C for
1N4954US thru 1N4996US or @ T
EC
= 125
o
C for
both the 1N6632US thru 1N6637US & 1N5968US
thru 1N5969US. Derate linearly above these
o
temperatures to zero at 175 C.
o
Thermal Resistance: 7 C/W junction to end cap for
o
1N4954US thru 1N4996US and 10 C/W for
1N6632US thru 1N6637US as well as 1N5968US
thru 1N5969US
Thermal Impedance at 10 ms: 1.8
o
C/W for
1N4954US thru 1N4996US, and 3.0
o
C/W for both
the 1N6632US thru 1N6637US & 1N5968US thru
1N5969US
Forward Voltage: 1.50 V at 1.0 A
•
•
MECHANICAL AND PACKAGING
CASE: Hermetically sealed voidless hard glass with
Tungsten slugs
TERMINATIONS: End caps are Copper with Tin/Lead
(Sn/Pb) finish. Note: Previous inventory had solid
Silver end caps with Tin/Lead (Sn/Pb) finish.
MARKING: None
POLARITY: Cathode indicated by band
Tape & Reel option: Standard per EIA-481-B
Weight: 539 mg
•
•
•
•
•
1N4954US thru 1N4996US
1N5968US thru 1N5969US
1N6632US thru 1N6637US
•
•
Copyright
©
2010
3-29-2010 REV E; SD44A.pdf
Microsemi
Page 1
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
1N4954US thru 1N4996US, 1N5968US thru
1N5969US, and 1N6632US thru 1N6637US
SCOTTSDALE DIVISION
VOIDLESS-HERMETICALLY-SEALED
Surface Mount 5 WATT GLASS ZENER
WWW .
Microsemi
.C
OM
ELECTRICAL CHARACTERISTICS @ 25
o
C
TYPE*
NOMINAL
ZENER
VOLTAGE
V
Z
@
I
ZT
VOLTS
TEST
CURRENT
MAXIMUM
DYNAMIC
IMPEDANCE
Z
Z
@
Z
ZK
*
@
I
ZT
I
ZK
=1mA
OHMS
OHMS
VOLTAGE
REGULATION
(Note 1)
Δ
V
Z
VOLTS
MAXIMUM REVERSE
LEAKAGE CURRENT
VOLTAGE
MAXIMUM
TEMPERATURE
COEFF.
α
VZ
@
I
ZT
%/ C
o
I
R
μA
300
250
175
25
20
5
5000
1000
150
100
50
25
25
10
10
10
5
5
5
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
V
R
VOLTS
MAXIMUM
CONTINUOUS
CURRENT
SURGE
CURRENT
@ 8.3 ms
sq. wave
I
ZT
mA
I
ZM
mA
I
ZSM
AMPS
1N6632US
1N6633US
1N6634US
1N6635US
1N6636US
1N6637US
1N5968US
1N5969US
1N4954US
1N4955US
1N4956US
1N4957US
1N4958US
1N4959US
1N4960US
1N4961US
1N4962US
1N4963US
1N4964US
1N4965US
1N4966US
1N4967US
1N4968US
1N4969US
1N4970US
1N4971US
1N4972US
1N4973US
1N4974US
1N4975US
1N4976US
1N4977US
1N4978US
1N4979US
1N4980US
1N4981US
1N4982US
1N4983US
1N4984US
1N4985US
1N4986US
1N4987US
1N4988US
1N4989US
1N4990US
1N4991US
1N4992US
1N4993US
1N4994US
1N4995US
1N4996US
3.3
3.6
3.9
4.3
4.7
5.1
5.6
6.2
6.8
7.5
8.2
9.1
10.0
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
220
240
270
300
330
360
390
380
350
320
290
260
240
220
220
175
175
150
150
125
125
100
100
75
75
65
65
50
50
50
40
40
30
30
30
25
25
20
20
20
20
15
15
12
12
10
10
8
8
5
5
5
5
5
4
4
3
3
3.0
2.5
2.0
2.0
2.0
1.5
1.0
1.0
1.0
1.5
1.5
2.0
2.0
2.5
2.5
3.0
3.5
3.5
4.0
4.5
5.0
5.0
6.0
8
10
11
14
20
25
27
35
42
50
55
80
90
110
125
170
190
330
350
450
500
550
650
800
950
1175
1400
1800
500
500
500
500
450
400
400
1000
1000
800
600
400
125
130
140
145
150
155
160
165
170
175
180
190
200
220
230
240
250
270
320
400
500
620
720
760
800
1000
1150
1250
1500
1650
1750
1850
2000
2050
2100
2150
2200
2300
2500
0.90
0.80
0.75
0.70
0.60
0.50
0.4
0.5
0.7
0.7
0.7
0.7
0.8
0.8
0.8
0.9
1.0
1.1
1.2
1.5
1.8
2.0
2.0
2.5
2.8
3.0
3.0
3.3
3.5
4.0
4.4
5.0
5.5
6.0
6.6
7.5
8.0
9.0
10
11
13
14
16
18
19
22
25
28
32
35
40
1.0
1.0
1.0
1.0
1.0
1.0
4.28
4.74
5.2
5.7
6.2
6.9
7.6
8.4
9.1
9.9
11.4
12.2
13.7
15.2
16.7
18.2
20.6
22.8
25.1
27.4
29.7
32.7
35.8
38.8
42.6
47.1
51.7
56.0
62.2
69.2
76.0
83.6
91.2
98.8
114.0
121.6
136.8
152
167
182
206
228
251
274
297
-.075
-.070
-.060
-.050
+/-.025
+/-.030
.04
.04
.05
.06
.06
.06
.07
.07
.07
.08
.08
.08
.085
.085
.085
.090
.090
.090
.095
.095
.095
.095
.095
.095
.095
.100
.100
.100
.100
.100
.100
.100
.100
.105
.105
.105
.110
.110
.115
.115
.120
.120
.120
.120
.120
1440
1320
1220
1100
1010
930
865
765
700
630
580
520
475
430
395
365
315
294
264
237
216
198
176
158
144
132
122
110
100
92
84
76
70
63.0
58.0
52.5
47.5
43.0
39.5
36.6
31.6
29.4
26.4
23.6
21.6
19.8
17.5
15.6
14.4
13.0
12.0
20.0
18.7
17.6
16.4
15.3
14.4
20
20
29.3
26.4
24
22
20
19
18
16
12
10
9.0
8.0
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.2
3.0
2.8
2.5
2.2
2.0
1.8
1.6
1.4
1.2
1.00
0.80
0.75
0.70
0.60
0.50
0.50
0.40
0.35
0.30
0.25
0.22
0.20
1N4954US thru 1N4996US
1N5968US thru 1N5969US
1N6632US thru 1N6637US
*I
ZK
= 5 mA for 1N5968
NOTE 1: Maximum voltage change
ΔV
Z
between 10% of I
ZM
and 50% of I
ZM
Copyright
©
2010
3-29-2010 REV E; SD44A.pdf
Microsemi
Page 2
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
1N4954US thru 1N4996US, 1N5968US thru
1N5969US, and 1N6632US thru 1N6637US
SCOTTSDALE DIVISION
VOIDLESS-HERMETICALLY-SEALED
Surface Mount 5 WATT GLASS ZENER
Symbol
V
Z
I
Z
, I
ZT
, I
ZK
Z
ZT
or Z
ZK
V
F
I
R
I
ZM
I
ZSM
SYMBOLS & DEFINITIONS
Definition
Zener Voltage: The zener voltage the device will exhibit at a specified current (I
Z
) in its breakdown region.
Regulator Current: The dc regulator current (I
Z
), at a specified test point (I
ZT
), or near breakdown knee (I
ZK
).
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.
Maximum Forward Voltage: The maximum forward voltage the device will exhibit at a specified current.
Maximum Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and
temperature.
Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating.
Maximum Zener Surge Current: The nonrepetitive peak value of zener surge current at a specified wave form.
WWW .
Microsemi
.C
OM
GRAPHS
FIGURE 1
SURGE POWER vs.
SURGE DURATION
1N4954US thru 1N4996US
1N5968US thru 1N5969US
1N6632US thru 1N6637US
FIGURE 2
TYPICAL ZENER IMPEDANCE vs.
ZENER CURRENT
Copyright
©
2010
3-29-2010 REV E; SD44A.pdf
Microsemi
Page 3
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
1N4954US thru 1N4996US, 1N5968US thru
1N5969US, and 1N6632US thru 1N6637US
SCOTTSDALE DIVISION
VOIDLESS-HERMETICALLY-SEALED
Surface Mount 5 WATT GLASS ZENER
WWW .
Microsemi
.C
OM
PACKAGE DIMENSIONS AND PAD LAYOUT
This Package Outline has also previously
been identified as “D-5B”
Note:
If mounting requires adhesive separate from the solder,
an additional 0.080 inch diameter contact may be placed in the
center between the pads as an optional spot for cement as
shown in the pad layout.
1N4954US thru 1N4996US
1N5968US thru 1N5969US
1N6632US thru 1N6637US
Copyright
©
2010
3-29-2010 REV E; SD44A.pdf
Microsemi
Page 4
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
stm32/stm8
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