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
D2.31 2.62 0.091 0.103
F0.48 0.71 0.019 0.028
G4.28 5.08 0.168 0.200
S0.08MIN. 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 @ 25°C, unless otherwise specified
MAXIMUM RATINGS
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: 1.0V 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
▲
VZSURGE
TYPE (NOM.) IZT (MAX.) (MAX.) IZK (MAX.) VRIZM
±5% ZZT@IZT ZZK@IZT IR@VR
VOLTS mA OHMS OHMS mA µ A VOLTS MA VOLTS AMPS
1N6485US 3.3 76.0 10 400 1.0 50 1.0 433 .90 4.2
1N6486US 3.6 69.0 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 5.6 45.0 5 600 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
(WATTS)
.1 .2 .5 1 2 5 10 20 50 100
OPERATING CURRENT IZT (mA)
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
ZENER IMPEDANCE ZZT (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
