1N4460US thru 1N4496US
1N6485US thru 1N6491US
SCOTTSDALE DIVISION
VOIDLESS-HERMETICALLY-SEALED
SURFACE MOUNT 1.5 WATT GLASS
ZENER DIODES
APPEARANCE
DESCRIPTION
T
his surface mount Zener Voltage Regulator series is military qualified to MIL-
WWW .
Microsemi
.C
OM
PRF-19500/406 and is ideal for high-reliability applications where a failure
cannot be tolerated. These industry-recognized 1.5 Watt Zener Voltage
Regulators are hermetically sealed with voidless-glass construction using an
internal metallurgical bond. It includes Zener selections from 3.3 to 200 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 (see separate data sheet for 1N4460 thru 1N4496 and 1N6485 thru
1N6491). 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
“A” Package
(or “D-5A”)
FEATURES
•
•
•
•
Popular JEDEC registered series
Voidless hermetically sealed glass package
Triple-layer passivation
Internal “Category
I”
Metallurgical bonds for 1N4462US
thru 1N4496US and “Category
III”
for 1N6485US thru
1N6491US as well as 1N4460US and 1N4461US
JAN, JANTX, JANTXV, and JANS available per MIL-
PRF-19500/406
Axial-leaded equivalents also available (see separate
data sheet for 1N4460 thru 1N4496 and 1N6485 thru
1N6491)
•
•
•
•
•
•
•
APPLICATIONS / BENEFITS
Regulates voltage over a broad operating current
and temperature range
Extensive selection from 3.3 to 200 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 Temperature: -65
o
C to +175
o
C.
Storage Temperature: -65
o
C to +200
o
C.
Power Dissipation: 1.5 Watts @ T
EC
= 145
o
C
o
Thermal Resistance: 20 C/W junction to end cap
Thermal Impedance at 10 ms: 4.5
o
C/W (1N4462US
thru 1N4496US) and 7.5
o
C/W (1N6485US thru
1N6491US as well as 1N4460US and 1N4461US)
Forward Voltage: 1.00 V at 200 mA and 1.5 V at 1.0 A
•
•
•
•
•
•
MECHANICAL AND PACKAGING
CASE: Hermetically sealed voidless hard glass with
Tungsten slugs
TERMINATIONS: End caps are Tin/Lead (Sn/Pb)
over Silver
MARKING: Polarity band only
POLARITY: Cathode indicated by band
Tape & Reel option: Standard per EIA-481-B
Weight: 193 mg
•
ELECTRICAL CHARACTERISTICS @ 25
o
C
1N4460US thru 1N4496US
1N6485US thru 1N6491US
TYPE
NOMINAL
ZENER
TEST
VOLTAGE CURRENT
V
Z
I
ZT
VOLTS
mA
3.3
76.0
3.6
69.0
3.9
64.0
4.3
58.0
4.7
53.0
5.1
49.0
5.6
45.0
MAXIMUM
DYNAMIC
IMPEDANCE
Z
ZT
@ I
ZT
OHMS
10
10
9
9
8
7
5
MAXIMUM KNEE
IMPEDANCE
Z
ZK
@ I
ZK
OHMS
400
400
400
400
500
500
600
mA
1.0
1.0
1.0
1.0
1.0
1.0
1.0
MAXIMUM
REVERSE
CURRENT
I
R
@ V
R
μA
VOLTS
50
1.0
50
1.0
35
1.0
5.0
1.0
4.0
1.0
1.0
1.0
0.5
2.0
MAXIMUM
CONTINUOUS
CURRENT
I
ZM
mA
433
397
366
332
304
280
255
MAXIMUM
SURGE
CURRENT
I
ZSM
1N6485US
1N6486US
1N6487US
1N6488US
1N6489US
1N6490US
1N6491US
AMPS
4.2
3.9
3.6
3.3
3.0
2.7
2.5
Copyright
©
2006
5-03-2006 REV C
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 1
1N4460US thru 1N4496US
1N6485US thru 1N6491US
SCOTTSDALE DIVISION
VOIDLESS-HERMETICALLY-SEALED
SURFACE MOUNT 1.5 WATT GLASS
ZENER DIODES
WWW .
Microsemi
.C
OM
TYPE
1N4460US
1N4461US
1N4462US
1N4463US
1N4464US
1N4465US
1N4466US
1N4467US
1N4468US
1N4469US
1N4470US
1N4471US
1N4472US
1N4473US
1N4474US
1N4475US
1N4476US
1N4477US
1N4478US
1N4479US
1N4480US
1N4481US
1N4482US
1N4483US
1N4484US
1N4485US
1N4486US
1N4487US
1N4488US
1N4489US
1N4490US
1N4491US
1N4492US
1N4493US
1N4494US
1N4495US
1N4496US
NOMINAL
TEST
ZENER
VOLTAGE CURRENT
I
ZT
V
Z
VOLTS
mA
6.2
40.0
6.8
37.0
7.5
34.0
8.2
31.0
9.1
28.0
10.0
25.0
11.0
23.0
12.0
21.0
13.0
19.0
15.0
17.0
16.0
15.5
18.0
14.0
20.0
12.5
22.0
11.5
24.0
10.5
27.0
9.5
30.0
8.5
33.0
7.5
36.0
7.0
39.0
6.5
43.0
6.0
47.0
5.5
51.0
5.0
56.0
4.5
62.0
4.0
68.0
3.7
75.0
3.3
82.0
3.0
91.0
2.8
100.0
2.5
110.0
2.0
120.0
2.0
130.0
1.9
150.0
1.7
160.0
1.6
180.0
1.4
200.0
1.2
MAXIMUM
DYNAMIC
IMPEDANCE
Z
ZT
@ I
ZT
OHMS
4
2.5
2.5
3
4
5
6
7
8
9
10
11
12
14
16
18
20
25
27
30
40
50
60
70
80
100
130
160
200
250
300
400
500
700
1000
1300
1500
MAXIMUM KNEE
IMPEDANCE
Z
ZK
@ I
ZK
OHMS
200
200
400
400
500
500
550
550
550
600
600
650
650
650
700
700
750
800
850
900
950
1000
1100
1300
1500
1700
2000
2500
3000
3100
4000
4500
5000
6000
6500
7000
8000
mA
1.0
1.0
.5
.5
.5
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
MAXIMUM
REVERSE
CURRENT
I
R
@ V
R
μA
10.0
5.0
1.0
.50
.30
.30
.30
.20
.05
.05
.05
.05
.05
.05
.05
.05
.05
.05
.05
.05
.05
.05
.05
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
.25
VOLTS
3.72
4.08
4.50
4.92
5.46
8.00
8.80
9.60
10.40
12.00
12.80
14.40
16.00
17.60
19.20
21.60
24.00
26.40
28.80
31.2
34.4
37.6
40.8
44.8
49.6
54.4
60.4
65.6
72.8
80.0
88.0
96.0
104.0
120.0
128.0
144.0
160.0
MAXIMUM
CONTINUOUS
CURRENT
I
ZM
mA
230
210
191
174
157
143
130
119
110
95
90
79
71
65
60
53
48
43
40
37
33
30
28
26
23
21
19
17
16
14
13
12
11
9.5
8.9
7.9
7.2
MAXIMUM
SURGE
CURRENT
I
ZSM
o
T
A
= 25 C
AMPS
2.3
2.1
1.9
1.7
1.6
1.4
1.3
1.2
1.1
.95
.90
.79
.71
.65
.60
.53
.48
.43
.40
.37
.33
.30
.28
.26
.23
.21
.19
.17
.16
.14
.13
.12
.11
.095
.089
.079
.072
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
), 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.
1N4460US thru 1N4496US
1N6485US thru 1N6491US
Copyright
©
2006
5-03-2006 REV C
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
1N4460US thru 1N4496US
1N6485US thru 1N6491US
SCOTTSDALE DIVISION
VOIDLESS-HERMETICALLY-SEALED
SURFACE MOUNT 1.5 WATT GLASS
ZENER DIODES
GRAPHS
WWW .
Microsemi
.C
OM
FIGURE 1
TYPICAL TEMPERATURE
COEFFICIENT CHARACTERISTICS
FIGURE 2
POWER TEMPERATURE DERATING CURVE
PACKAGE DIMENSIONS AND PAD LAYOUT
1N4460US thru 1N4496US
1N6485US thru 1N6491US
This Package Outline has also previously been identified as “D-5A”
Note: If mounting requires adhesive separate from the solder, an additional 0.060 inch diameter
contact may be placed in the center between the pads as an optional spot for cement in the
pad layout as shown.
Copyright
©
2006
5-03-2006 REV C
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 3