CDI-DIODE 1N935

1N935 thru 1N938B
and
• 1N935B-1, 1N937B-1 AND 1N938B-1 AVAILABLE IN JAN, JANTX, JANTXV
AND JANS PER MIL-PRF-19500/156
• 9.0 VOLT NOMINAL ZENER VOLTAGE
1N935B-1 thru 1N938B-1
• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
• METALLURGICALLY BONDED
MAXIMUM RATINGS
Operating Temperature: -65°C to +175°C
Storage Temperature: -65°C to +175°C
DC Power Dissipation: 500mW @ +50°C
Power Derating: 4 mW / °C above +50°C
REVERSE LEAKAGE CURRENT
lR = 10µ A @ 25°C & VR = 6 Vdc
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
JEDEC
TYPE
NUMBER
ZENER
VOLTAGE
vz @ I
ZT
ZENER
TEST
CURRENT
I
ZT
MAXIMUM
ZENER
IMPEDANCE
(Note 1)
Z
ZT
VOLTAGE
TEMPERATURE
TEMPERATURE
RANGE
STABILITY
∆V
ZT
MAXIMUM
EFFECTIVE
TEMPERATURE
COEFFICIENT
FIGURE 1
(Note 2)
VOLTS
mA
OHMS
°C
% / °C
1N935
1N935A
1N935B
8.55—9.45
8.55—9.45
8.55—9.45
7.5
7.5
7.5
20
20
20
mV
67
139
184
0 to + 75
-55 to +100
-55 to +150
0.01
0.01
0.01
1N936
1N936A
1N936B
8.55—9.45
8.55—9.45
8.55—9.45
7.5
7.5
7.5
20
20
20
34
70
92
0 to + 75
-55 to +100
-55 to +150
0.005
0.005
0.005
1N937
1N937A
1N937B
8.55—9.45
8.55—9.45
8.55—9.45
7.5
7.5
7.5
20
20
20
13
28
37
0 to + 75
-55 to +100
-55 to +150
0.002
0.002
0.002
1N938
1N938A
1N938B
8.55—9.45
8.55—9.45
8.55—9.45
7.5
7.5
7.5
20
20
20
6.7
13.9
19
0 to + 75
-55 to +100
-55 to +150
0.001
0.001
0.001
DESIGN DATA
CASE: Hermetically sealed glass
case. DO – 35 outline.
LEAD MATERIAL: Copper clad steel.
LEAD FINISH: Tin / Lead
POLARITY: Diode to be operated with
the banded (cathode) end positive.
MOUNTING POSITION: Any.
NOTE 1 Zener impedance is derived by superimposing on lZT A 60Hz rms a.c. current equal
to 10% of lZT.
NOTE 2 The maximum allowable change observed over the entire temperature range i.e., the
diode voltage will not exceed the specified mV at any discrete temperature between
the established limits, per JEDEC standard No. 5.
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
1N935
1N938B
600
Pd, Rated Power
Dissipation (mW)
thru
INCLUDING -1 VERSIONS
500
400
300
200
100
0
0
25
50
75
100
125
150
TL, Lead temperature (C°) 3/8” from body
FIGURE 2
POWER DERATING CURVE
ZENER IMPEDANCE ZZT (OHMS)
100
50
40
30
20
10
5
4
3
2
1
5
6
7
8
9
OPERATING CURRENT lZT (mA)
10
FIGURE 3
ZENER IMPEDANCE VS. OPERATING CURRENT
CHANGE IN TEMPERATURE COEFFICIENT ( %/°C)
+.0015
+.0010
+.0005
0
-.0005
-.0010
-.0015
5
6
7
8
OPERATING CURRENT lZT (mA)
9
FIGURE 4
TYPICAL CHANGE OF TEMPERATURE COEFFICIENT
WITH CHANGE IN OPERATING CURRENT
10
175