T4-LDS-0183, Rev. 3 (120901) ©2012 Microsemi Corporation Page 1 of 6
1N4460 – 1N4496 and 1N6485 – 1N6491
Availa ble on
commercial
versions
VOIDLESS HERMETICALLY SEALED 1 .5 WATT
GLASS ZENER DIODES
Qualified per MIL-PRF-19500/406
Qualified Levels:
JAN, JANTX,
JANTXV and JANS
DESCRIPTION
This Zener voltage regulator series is military qualified to MIL-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 void -less glass construction using
an internal metallurgical bond. It includes Zener selections from 3.3 to 200 volts in standard
5% tolerance. 1% and 2% toleranc e vers ions are als o avail ab le. Microsemi also offers
numerous other Zener products to meet higher and lower power ratings in both thru-hole and
surface mount packages.
DO-41 Package
Also available in:
D-5A MELF
Package
(surface mount)
1N4460US – 1N4496US and
1N6485US – 1N6491US
Important: For the latest information, visit our website http://www.microsemi.com.
FEATURES
• Popular JEDEC registered series.
• Void-less hermetically sealed glass package.
• Triple-la yer passivation.
• Extr emely rob ust constr u cti on.
• Internal “Category 1” metallurgical bonds for 1N4462 thru 1N 4496 and “Category III” for 1N6485 thru
1N6491 as well as 1N4460 and 1N446 1.
• JAN, JANTX, JANTXV and JANS qualifications are av ailable per MIL-PRF-19500/406.
• RoHS compliant versions available (commercial grade only).
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.
• Tighter tolerances available in plus or minus 2% or 1%.
• Flexible axial-lea d mount ing te rmina ls.
• Non-sensitive to ESD per MIL-STD-750 method 1020.
• Inherently radiation hard as described in Microsemi MicroNote 050.
MAXIMUM RATINGS @ TA= 25oC unless otherwise specified
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
Parameters/Test Conditions
Symbol
Value
Unit
Junction and Storage Temperature
TJ & TSTG
-65 to +175
oC
Steady State Power Dissipation @ TL = +112 ºC
L = .375 inch (9.53 mm)
PD 1.5 W
Thermal Resistance Junction-to-Lead @ .375 inch
(9.52 mm) from body
RӨJL 42
o
C/W
Thermal Impedance @ 10 ms
1N4462 – 1N4496
1N6485 – 1N6491
1N4460 – 1N4461
ZӨJX
Figure 3
Figure 4
Figure 4
ºC/W
Forward Voltage @ 200 mA
@ 1.0 A
VF 1.0
1.5
V
Solder Temperature @ 10 s
TSP
260
oC
T4-LDS-0183, Rev. 3 (120901) ©2012 Microsemi Corporation Page 2 of 6
1N4460 – 1N4496 and 1N6485 – 1N6491
MECHANICAL and PACKAGING
• CASE: Hermetically sealed voidless hard glass with tungs ten slugs.
• TERMINALS: Tin/lead (Sn/Pb) or RoHS compliant matte/tin (commercial grade only) over copper.
• MARKING: Body coated in blue with part number.
• POLARITY: Cathode indicated by band.
• TAPE & REEL option: Standard per EIA-296. Consult factory for quantities.
• WEIGHT: 340 milligrams.
• See Package Dimensions on last page.
PART NOMENCLATURE
JAN 1N4460 C (e3)
Reliability Level
JAN = JAN Level
JANTX = JANTX Level
JANTXV = JANTXV Level
JANS = JANS Level
Blank = Commercial
JEDEC type number
(See Electrical Characteristics
table)
RoHS Compliance
e3 = RoHS compliant (available
on commercial grade only)
Blank = non-RoHS compliant
Tolerance Level
Blank = 5 %
C = 2 %
D = 1%
SYMBOLS & DEFINITIONS
Symbol
Definition
VZ
Zener Voltage: The Zener voltage the device will exhibit at a specifi ed curre nt (IZ) in its breakdown region.
IZ, IZT, IZK
Regulator Current: The dc regulator current (IZ), at a specified test point (IZT), near breakdown knee (IZK).
ZZT or ZZK
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 IZT or IZK) and superimpos ed on IZT o r IZK respectively.
VF
Maximum Forward Voltage: The maximum forward voltage the device will exhibit at a specified current.
IR
Maximum Reverse Current: The maximum reverse (leakage) current that will flow at the specified voltage and
temperature.
IZM
Maximum Regulator (Zener) Current: The maximum rated dc current for the specified power rating.
IZSM
Maximum Zener Surge Current: The non-repetitive peak value of Zener surge current at a specified wave form.
T4-LDS-0183, Rev. 3 (120901) ©2012 Microsemi Corporation Page 3 of 6
1N4460 – 1N4496 and 1N6485 – 1N6491
ELECTRICA L CHARACTERISTICS @ 25 ºC Case temperature
TYPE
NOMINAL
ZENER
VOLTAGE
VZ
TEST
CURRENT
IZT
MAXIMUM
DYNAMIC
IMPEDANCE
ZZT @ IZT
MAXIMUM KNE E
IMPEDANCE
ZZK @ IZK
MAXIMUM
REVERSE
CURRENT
IR @ VR
MAXIMUM
CONTINUOUS
CURRENT
IZM
(Note 1)
SURGE
CURRENT
@ 8.3 ms
square wave
IZSM
Volts
mA
Ohms
Ohms
mA
µA
Volts
mA
Amps
1N4460
1N4461
1N4462
1N4463
6.2
6.8
7.5
8.2
40.0
37.0
34.0
31.0
4
2.5
2.5
3
200
200
400
400
1.0
1.0
.5
.5
10.0
5.0
1.0
.50
3.72
4.08
4.50
4.92
230
210
191
174
2.3
2.1
1.9
1.7
1N4464
1N4465
1N4466
1N4467
9.1
10.0
11.0
12.0
28.0
25.0
23.0
21.0
4
5
6
7
500
500
550
550
.5
.25
.25
.25
.30
.30
.30
.20
5.46
8.00
8.80
9.60
157
143
130
119
1.6
1.4
1.3
1.2
1N4468
1N4469
1N4470
1N4471
13.0
15.0
16.0
18.0
19.0
17.0
15.5
14.0
8
9
10
11
550
600
600
650
.25
.25
.25
.25
.05
.05
.05
.05
10.4
12.0
12.8
14.4
110
95
90
79
1.1
.95
.90
.79
1N4472
1N4473
1N4474
1N4475
20.0
22.0
24.0
27.0
12.5
11.5
10.5
9.5
12
14
16
18
650
650
700
700
.25
.25
.25
.25
.05
.05
.05
.05
16.0
17.6
19.2
21.6
71
65
60
53
.71
.65
.60
.53
1N4476
1N4477
1N4478
1N4479
30.0
33.0
36.0
39.0
8.5
7.5
7.0
6.5
20
25
27
30
750
800
850
900
.25
.25
.25
.25
.05
.05
.05
.05
24.0
26.4
28.8
31.2
48
43
40
37
.48
.43
.40
.37
1N4480
1N4481
1N4482
1N4483
43.0
47.0
51.0
56.0
6.0
5.5
5.0
4.5
40
50
60
70
950
1000
1100
1300
.25
.25
.25
.25
.05
.05
.05
.25
34.4
37.6
40.8
44.8
33
30
28
26
.33
.30
.28
.26
1N4484
1N4485
1N4486
1N4487
62.0
68.0
75.0
82.0
4.0
3.7
3.3
3.0
80
100
130
160
1500
1700
2000
2500
.25
.25
.25
.25
.25
.25
.25
.25
49.6
54.4
60.0
65.6
23
21
19
17
.23
.21
.19
.17
1N4488
1N4489
1N4490
1N4491
91.0
100.0
110.0
120.0
2.8
2.5
2.3
2.0
200
250
300
400
3000
3100
4000
4500
.25
.25
.25
.25
.25
.25
.25
.25
72.8
80.0
88.0
96.0
16
14
13
12
.16
.14
.13
.12
1N4492
1N4493
1N4494
1N4495
130.0
150.0
160.0
180.0
1.9
1.7
1.6
1.4
500
700
1000
1300
5000
6000
6500
7000
.25
.25
.25
.25
.25
.25
.25
.25
104.0
120.0
128.0
144.0
11
9.5
8.9
7.9
.11
.095
.089
.079
1N4496
200.0
1.2
1500
8000
.25
.25
160.0
7.2
.072
1N6485
1N6486
1N6487
1N6488
3.3
3.6
3.9
4.3
76.0
69.0
64.0
58.0
10
10
9
9
400
400
400
400
1.0
1.0
1.0
1.0
50
50
35
5.0
1.0
1.0
1.0
1.0
433
397
366
332
4.2
3.9
3.6
3.3
1N6489
1N6490
1N6491
4.7
5.1
5.6
53.0
49.0
45.0
8
7
5
500
500
600
1.0
1.0
1.0
4.0
1.0
0.5
1.0
1.0
2.0
304
280
255
3.0
2.7
2.5
NOTE: 1. See “Maximum Ratings” for PD temperature conditions for leaded package where IZM is applicabl e.
T4-LDS-0183, Rev. 3 (120901) ©2012 Microsemi Corporation Page 4 of 6
1N4460 – 1N4496 and 1N6485 – 1N6491
GRAPHS
T EMP ER AT U RE C O EFF IC IENT (%/°C)
FIGURE 1
Temperature Coefficient Characteristics
TL (°C) (Leads)
FIGURE 2
Temperature-Power Derating Curve
ZENER VOLTAGE
DC Operation Maximum Rating (W)
T4-LDS-0183, Rev. 3 (120901) ©2012 Microsemi Corporation Page 5 of 6
1N4460 – 1N4496 and 1N6485 – 1N6491
GRAPHS (continued)
tH (Heating time) ms
FIGURE 3
Thermal Impedance Curve for 1N4462 through 1N4496
tH (Heating time) ms
FIGURE 4
Thermal Impedance Curve for 1N6485 through 1N6491 and 1N4460 through 1N4461
Z
θJX
-(°C/W)
ZθJX-(°C/W)
T4-LDS-0183, Rev. 3 (120901) ©2012 Microsemi Corporation Page 6 of 6
1N4460 – 1N4496 and 1N6485 – 1N6491
PACKAGE DIMENSIONS
NOTES:
1. Dimensions are in inches.
2. Millimeters are given for general information only.
3. Package contour optional with BD and length BL. Heat slugs, if any,
shall be included within this cylinder length but shall not be subject to
minimum limit of BD.
4. The specified lead diameters apply in the zone between .050 inch
(1.27 mm) from the diode body and the end of the lead.
5. In accordance with ASME Y14.5M, diameters are equivalent to Φx
symbology.
DIMENSIONS
Ltr
INCH
MILLIMETERS
Notes
Min
Max
Min
Max
BD
.060
.085
1.52
2.16
3
BL
.106
.160
2.69
4.06
3
LD
.028
.032
0.71
0.81
LL
.800
1.300
20.32
33.02
LU
.050
1.27
4
