MICROSEMI 1N4461

• AVAILABLE IN JAN, JANTX,
PER MIL-PRF-19500/406
1N6485
THRU
1N6491
AND
1N4460
AND
1N4461
JANTXV, AND JANS
• 1.5 WATT ZENER DIODES
• NON CAVITY CONSTRUCTION
• METALLURGICALLY BONDED
0.060/0.085
MAXIMUM RATINGS
1.52/2.16
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +200°C
Power Dissapation: 1.5W @ TA=+25°C
Power Derating: 10mW/°C above TA=+25°C
Forward Voltage: 1.0 V dc @ IF=200mA dc
1.5 V dc @ IF=1A dc
POLARITY
BAND
(CATHODE)
0.125/0.160
3.18/4.06
0.800
20.32
0.028/0.032
0.71/0.81
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified
TYPE
ZENER
TEST
DYNAMIC
KNEE
TEST
REVERSE TEST
MAXIMUM VZ (REG) MAXIMUM
VOLTAGE CURRENT IMPEDENCE IMPEDENCE CURRENT CURRENT VOLTAGE CURRENT V VZ
SURGE
±5%
IZT
(MAX.)
(MAX.)
IZK
(MAX.)
VR
IZM
VZ
ZZT@IZT
ZZK@IZT
IR@VR
µA
VOLTS
mA
OHMS
OHMS
mA
VOLTS
MA
VOLTS
AMPS
FIGURE 1
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
.90
.80
.75
.70
4.2
3.9
3.6
3.3
DESIGN DATA
1N6489
1N6490
1N6491
1N4460
1N4461
4.7
5.1
5.6
6.2
6.8
53.0
49.0
45.0
40.0
37.0
8
7
5
4
2.5
500
500
600
200
200
1.0
1.0
1.0
1.0
1.0
4.0
1.0
0.5
10.0
5.0
1.0
1.0
2.0
3.72
4.08
304
280
255
230
210
.60
.50
.40
.35
.30
3.0
2.7
2.5
2.3
2.1
CASE: Hermetically sealed, Glass “A”
Body per MIL-PRF- 19500/406
D-5A
NOTE: Zener voltage is measured with the device junction in thermal equilibrium at an
ambient temperature of 25°C ± 3°C.
LEAD MATERIAL: Copper clad steel
LEAD FINISH: Tin / Lead
THERMAL RESISTANCE: (ROJL): 42
°C/W maximum at L = .375
THERMAL IMPEDANCE: (ZOJX): 4.5
°C/W maximum
POLARITY: Diode to be operated with
the banded (cathode) end positive.
MOUNTING POSITION: Any
6 LAKE STREET, LAWRENCE, MASSACHUSETTS 01841
PHONE (978) 620-2600
FAX (781) 689-0803
WEBSITE: http://www.microsemi.com
71
1N6485
1N6491
thru
and
1N4460 and 1N4461
Pd. Power Dissipation
(WATTS)
FIGURE 2
1.5
1.0
O.5
0
25
50
75
100
125
150
TA, AMBIENT TEMPERATURE (°C)
175
POWER DERATING CURVE
1000
500
400
300
3.3 VOLT
ZENER IMPEDANCE ZZT (OHMS)
200
100
5.1 VOLT
50
40
30
20
10
5
4
6.2 VOLT
3
2
1
.1
.2
.5
1
2
5
10
20
50
100
OPERATING CURRENT IZT (mA)
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
72