CDI-DIODE 1N6643

1N6638
1N6642
1N6643
• 1N6638,1N6642, 1N6643 AVAILABLE IN JAN, JANTX, JANTXV, AND JANS
PER MIL-PRF-19500/578
• SWITCHING DIODES
• NON-CAVITY GLASS PACKAGE
• METALLURGICALLY BONDED
0.056/0.075
1.42/1.91
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
Operating Current: 300 mA
Derating: 3.0 mA/°C Above TL = + 75°C @L = 3/8”
Surge Current: IFSM = 2.5A, half sine wave, Pw = 8.3ms
POLARITY
BAND
(CATHODE)
0.140/0.180
3.55/4.57
1.00
25.4
0.018/0.022
0.46/0.56
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
TYPES
1N6638
1N6642
1N6643
V BR
@IR
=100µA
V RWM
V F1
I FM
= 10 mA
(Pulsed)
V F2 @ I F2
t fr
IF
= 50 mA
t rr
FIGURE 1
(Pulsed)
V(PK)
(min)
V(PK)
V dc
V dc
mA
ns
ns
150
100
75
125
75
50
0.8
1.0
1.0
1.1
1.2
1.2
200
100
100
20
20
20
4.5
5.0
6.0
DESIGN DATA
CASE: Hermetically sealed, “D” Body
per MIL-PRF- 19500/578. D-5D
I R1
I R2
I R3
I R4
C T1
C T2
VR
= 20 V
@V R
= V RWM
V R = 20 V
TA = 150°C
V R = V RWM
TA = 150°C
VR=
0V
VR=
1.5V
nA dc
µA dc
µA dc
µA dc
pF
pF
1N6638
35
0.5
50
100
2.5
2.0
1N6642
25
0.5
50
100
5.0
2.8
1N6643
50
0.5
75
160
5.0
2.8
TYPES
LEAD MATERIAL: Copper clad steel
LEAD FINISH: Tin / Lead
THERMAL RESISTANCE: (ROJL): 160
°C/W maximum at L = .375
THERMAL IMPEDANCE: (ZOJX): 25
°C/W maximum
POLARITY: Cathode end is banded.
MOUNTING POSITION: Any
22 COREY STREET, MELROSE, MASSACHUSETTS 02176
PHONE (781) 665-1071
FAX (781) 665-7379
WEBSITE: http://www.cdi-diodes.com
E-mail: [email protected]
IN6638, IN6642
and
IN6643
1000
-65ºC
1
25º
C
100
ºC
15
0ºC
10
0.1
.2
.3
.4
.5
.6
.7
.8
.9
VF - Forward Voltage (V)
1.0
1.1
1.2
FIGURE 2
Typical Forward Current
vs Forward Voltage
1000
100
150ºC
10
IR - Reverse Current - (µA)
IF - Forward Current - (mA)
100
C
100º
1
0.1
25ºC
.01
-65ºC
.001
20 40 60 80 100 120 140
Percent of Reverse Working Voltage (%)
FIGURE 3
Typical Reverse Current
vs Reverse Voltage
NOTE :
All temperatures shown on graphs are
junction temperatures