DESIGN DATA
CASE: D-5A, hermetically sealed glass
case, per MIL-PRF- 19500/406
LEAD FINISH: Tin / Lead
THERMAL RESISTANCE: (ROJEC):
20 C/W maximum at L = 0
THERMAL IMPEDANCE: (ZOJX): 4.5
C/W maximum
POLARITY: Diode to be operated with
the banded (cathode) end positive.
MOUNTING SURFACE SELECTION:
The Axial Coefficient of Expansion
(COE) of this device is approximately
+ 4PPM / C. The COE of the Mounting
Surface System should be selected to
provide a suitable match with this
device.
MILLIMETERS
INCHES
DIM
MIN MAX
MIN MAX
D
2.31
2.62
0.091 0.103
F
0.48
0.71
0.019 0.028
G
4.28
5.08
0.168 0.200
S
0.08MIN.
0.003MIN.
FIGURE 1
22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071
FAX (781) 665-7379
WEBSITE: http://www.cdi-diodes.com
E-mail: mail@cdi-diodes.com
AVAILABLE IN
JAN, JANTX, JANTXV
AND
JANS
PER MIL-PRF-19500/406
1.5 WATT ZENER DIODES
NON CAVITY CONSTRUCTION
METALLURGICALLY BONDED
1N6485US
THRU
1N6491US
AND
1N4460US
AND
1N4461US
ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise specified
MAXIMUM RATINGS
Operating Temperature: -65C to +175C
Storage Temperature: -65C to +200C
Power Dissapation: 1.5W @ TA=+25C
Power Derating: 10mW/C above TA=+25C
Forward Voltage: 1.0V dc @ IF=200mA dc
1.5 V dc @ IF=1A dc
ZENER
TEST
DYNAMIC
KNEE
TEST
REVERSE
TEST
MAXIMUM VZ
(REG)
MAXIMUM
VOLTAGE CURRENT IMPEDENCE IMPEDENCE CURRENT CURRENT VOLTAGE CURRENT
v
VZ
SURGE
TYPE
(NOM.)
IZT
(MAX.)
(MAX.)
IZK
(MAX.)
VR
IZM
5%
ZZT@IZT
ZZK@IZT
IR@VR
VOLTS
mA
OHMS
OHMS
mA
A
VOLTS
MA
VOLTS
AMPS
1N6485US
3.3
76.0
10
400
1.0
50
1.0
433
.90
4.2
1N6486US
3.66
9.0
10
400
1.0
50
1.0
397
.80
3.9
1N6487US
3.9
64.0
9
400
1.0
35
1.0
366
.75
3.6
1N6488US
4.3
58.0
9
400
1.0
5.0
1.0
332
.70
3.3
1N6489US
4.7
53.0
8
500
1.0
4.0
1.0
304
.60
3.0
1N6490US
5.1
49.0
7
500
1.0
1.0
1.0
280
.50
2.7
1N6491US
5.645.0
5
6
00
1.0
0.5
2.0
255
.40
2.5
1N4460US
6.2
40.0
4
200
1.0
10.0
3.72
230
.35
2.3
1N4461US
6.8
37.0
2.5
200
1.0
5.0
4.08
210
.30
2.1
1N6485US
thru
1N6491US
and
1N4460US
and 1N4461US
FIGURE 2
1.5
1.0
O.5
0
25
50
75
100
125
150
175
TA, AMBIENT TEMPERATURE (C)
POWER DERATING CURVE
Pd.
Power
Dissipation
(W
A
T
TS)
.1
.2
.5
1
2
5
10
20
50
100
OPERATING CURRENT I
ZT
(mA)
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
ZENER
IMPEDANCE
Z
ZT
(OHMS)
1000
500
400
300
200
100
50
40
30
20
10
5
4
3
2
1
5.1 VOLT
6.2 VOLT
3.3 VOLT
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