1N4460 thru 1N4496
1N6485 thru 1N6491
SCOTTSDALE DIVISION
VOIDLESS-HERMETICALLY-SEALED 1.5
WATT GLASS ZENER DIODES
DESCRIPTION
T
his Zener Voltage Regulator series is military qualified to MIL-PRF-19500/406
APPEARANCE
WWW .
Microsemi
.C
OM
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 surface-mount packages (see separate data sheet
for 1N4460US thru 1N4496US and 1N6485US thru 1N6491US). 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
FEATURES
•
•
•
•
•
Popular JEDEC registered series
Voidless hermetically sealed glass package
Extremely robust construction
Triple-layer passivation
Internal “Category
I”
Metallurgical bonds for 1N4462
thru 1N4496 and “Category
III”
for 1N6485 thru 1N6491
as well as 1N4460 and 1N4461.
JAN, JANTX, JANTXV, and JANS available per MIL-
PRF-19500/406
Surface mount equivalents also available in a square
end-cap MELF configuration with a “US” suffix (see
separate data sheet for 1N4460US thru 1N4496US and
1N6485US thru 1N6491US)
•
•
•
•
•
•
•
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
Flexible axial-lead mounting terminals
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
A
= 25
o
C
Thermal Resistance: 42
o
C/W junction to lead at 3/8
inch (10 mm) from body
Thermal Impedance: 4.5
o
C/W (1N4462 thru 1N4496)
and 7.5
o
C/W (1N6485 thru 1N6491 as well as
1N4460 and 1N4461) at 10 ms
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: Axial-leads are Tin/Lead (Sn/Pb)
over Copper
MARKING: Body painted and part number, etc.
POLARITY: Cathode indicated by band
Tape & Reel option: Standard per EIA-296
Weight: 340 mg
•
ELECTRICAL CHARACTERISTICS @ 25
o
C
TYPE
NOMINAL
ZENER
VOLTAGE
V
Z
VOLTS
1N4460 thru 1N4496
1N6485 thru 1N6491
TEST
CURRENT
I
ZT
mA
MAXIMUM
DYNAMIC
IMPEDANCE
Z
ZT
@ I
ZT
OHMS
MAXIMUM KNEE
IMPEDANCE
Z
ZK
@ I
ZK
OHMS
mA
1N6485
1N6486
1N6487
1N6488
1N6489
1N6490
1N6491
Copyright
2004
9-28-2004 REV A
3.3
3.6
3.9
4.3
4.7
5.1
5.6
76.0
69.0
64.0
58.0
53.0
49.0
45.0
10
10
9
9
8
7
5
400
400
400
400
500
500
600
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
MAXIMUM
SURGE
CURRENT
I
ZSM
AMPS
433
397
366
332
304
280
255
4.2
3.9
3.6
3.3
3.0
2.7
2.5
Page 1
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
1N4460 thru 1N4496
1N6485 thru 1N6491
SCOTTSDALE DIVISION
VOIDLESS-HERMETICALLY-SEALED 1.5
WATT GLASS ZENER DIODES
WWW .
Microsemi
.C
OM
TYPE
1N4460
1N4461
1N4462
1N4463
1N4464
1N4465
1N4466
1N4467
1N4468
1N4469
1N4470
1N4471
1N4472
1N4473
1N4474
1N4475
1N4476
1N4477
1N4478
1N4479
1N4480
1N4481
1N4482
1N4483
1N4484
1N4485
1N4486
1N4487
1N4488
1N4489
1N4490
1N4491
1N4492
1N4493
1N4494
1N4495
1N4496
NOMINAL
ZENER
VOLTAGE
V
Z
VOLTS
6.2
6.8
7.5
8.2
9.1
10.0
11.0
12.0
13.0
15.0
16.0
18.0
20.0
22.0
24.0
27.0
30.0
33.0
36.0
39.0
43.0
47.0
51.0
56.0
62.0
68.0
75.0
82.0
91.0
100.0
110.0
120.0
130.0
150.0
160.0
180.0
200.0
MAXIMUM
TEST
DYNAMIC
CURRENT IMPEDANCE
I
ZT
Z
ZT
@ I
ZT
mA
OHMS
40.0
4
37.0
2.5
34.0
2.5
31.0
3
28.0
4
25.0
5
23.0
6
21.0
7
19.0
8
17.0
9
15.5
10
14.0
11
12.5
12
11.5
14
10.5
16
9.5
18
8.5
20
7.5
25
7.0
27
6.5
30
6.0
40
5.5
50
5.0
60
4.5
70
4.0
80
3.7
100
3.3
130
3.0
160
2.8
200
2.5
250
2.0
300
2.0
400
1.9
500
1.7
700
1.6
1000
1.4
1300
1.2
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.
1N4460 thru 1N4496
1N6485 thru 1N6491
Copyright
2004
9-28-2004 REV A
Microsemi
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Page 2
Microchip MCU
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