I R1
I R2
I R3
I R4
C T1
C T2
TYPES
V R
@V R
V R = 20 V
V R = V RWM
V R =
V R =
= 20 V
= V RWM
TA = 150C
TA = 150C
0V
1.5V
nA dc
A dc
A dc
A dc
pF
pF
1N663835
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
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
V BR
V RWM
V F1
V F2 @ I F2
t fr
t rr
TYPES
@ I R
I FM
I F
=100A
= 10 mA
= 50 mA
(Pulsed)
(Pulsed)
V(PK)
V(PK)
V dc
V dc
mA
ns
ns
(min)
1N6638
150
125
0.8
1.1
200
20
4.5
1N6642
100
75
1.0
1.2
100
20
5.0
1N6643
75
50
1.0
1.2
100
20
6.0
MAXIMUM RATINGS
Operating Temperature: -65C to +175C
Storage Temperature: -65C to +175C
Operating Current: 300 mA
Derating: 3.0 mA/C Above TL = + 75C @L = 3/8"
Surge Current: I
FSM
= 2.5A, half sine wave, Pw = 8.3ms
ELECTRICAL CHARACTERISTICS @ 25C, unless otherwise specified.
1N6638,1N6642, 1N6643 AVAILABLE IN
JAN, JANTX, JANTXV,
AND
JANS
PER MIL-PRF-19500/578
SWITCHING DIODES
NON-CAVITY GLASS PACKAGE
METALLURGICALLY BONDED
1N6638
1N6642
1N6643
DESIGN DATA
CASE: Hermetically sealed, "D" Body
per MIL-PRF- 19500/578. D-5D
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
FIGURE 1
0.056/0.075
1.42/1.91
0.140/0.180
3.55/4.57
1.00
25.4
0.018/0.022
0.46/0.56
POLARITY
BAND
(CATHODE)
PDF 
ZIP