CDIDI 1N6642, 1N6643, 1N6638 Datasheet

• 1N6638,1N6642, 1N6643 AVAILABLE IN	JAN, JANTX, JANTXV,	AND	JANS	1N6638
PER MIL-PRF-19500/578				1N6642
• SWITCHING DIODES				1N6643
• NON-CAVITY GLASS PACKAGE
• METALLURGICALLY BONDED

0.056/0.075

MAXIMUM RATINGS

1.42/1.91

Operating Temperature: -65°C to +175°C

Storage Temperature: -65°C to +175°C

Operating Current: 300 mA

Derating: 3.0 mA/°C Above T

L

= + 75°C @L = 3/8”

0.140/0.180

Surge Current: I FSM

= 2.5A, half sine wave, P

w

= 8.3ms

BAND

3.55/4.57

POLARITY

(CATHODE)

1.00

25.4

0.018/0.022

ELECTRICAL CHARACTERISTICS

@ 25°C, unless otherwise specified.

0.46/0.56

V

BR

V

RWM

V

F1

V F2

@ I F2

tfr

trr

TYPES

@ I

R

I

FM

I F

=100µA

=

10 mA

= 50 mA

FIGURE 1

(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

DESIGN DATA

1N6642

100

75

1.0

1.2

100

20

5.0

1N6643

75

50

1.0

1.2

100

20

6.0

CASE:

Hermetically sealed, “D” Body

per MIL-PRF- 19500/578. D-5D

LEAD MATERIAL:

Copper clad steel

I R1

I R2

I R3

I

R4

C

T1

C

T2

TYPES

LEAD FINISH:

Tin / Lead

V R

@ V R

V

R

= 20 V

V

R

= V

RWM

V

R =

V

R =

= 20 V

= V

RWM

T A

=

150°C

T

A

= 150°C

0V

1.5V

THERMAL RESISTANCE: (

R

JL ): 160

O

nA dc

µA dc

µA

dc

µA dc

pF

pF

°C/W maximum at L = .375

1N6638

35

0.5

50

100

2.5

2.0

THERMAL IMPEDANCE: (

Z

O

JX ): 25

1N6642

25

0.5

50

100

5.0

2.8

°C/W maximum

1N6643

50

0.5

75

160

5.0

2.8

POLARITY:

Cathode end is banded.

MOUNTING POSITION:

Any

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