MICROSEMI CDLL938A

1N935BUR-1 thru 1N938BUR-1
and
• 1N935BUR-1, 1N937BUR-1 and 1N938BUR-1 AVAILABLE IN
JAN, JANTX, JANTXV AND JANS PER MIL-PRF-19500/156
• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
CDLL935 thru CDLL938B
• LEADLESS PACKAGE FOR SURFACE MOUNT
• 9.0 VOLT NOMINAL ZENER VOLTAGE
• METALLURGICALLY BONDED, DOUBLE PLUG CONSTRUCTION
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
l
R
= 10 µA @ 25°C & VR = 6 Vdc
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
CDI
TYPE
NUMBER
ZENER
VOLTAGE
[email protected] I ZT
ZENER
TEST
CURRENT
I ZT
MAXIMUM
VOLTAGE
TEMPERATURE
EFFECTIVE
ZENER
TEMPERATURE
RANGE
TEMPERATURE
IMPEDANCE
STABILITY
COEFFICIENT
ZZT
³V ZT
MAXIMUM
(Note 1)
(Note 2)
DIM
D
F
G
G1
S
MILLIMETERS
INCHES
MIN MAX MIN MAX
1.60
1.70 0.063 0.067
0.41
0.55 0.016 0.022
3.30
3.70 .130 .146
2.54 REF.
.100 REF.
0.03 MIN.
.001 MIN.
VOLTS
mA
OHMS
mV
°C
% / °C
CDLL935
CDLL935A
CDLL935B
8.55 - 9.45
8.55 - 9.45
8.55 - 9.45
7.5
7.5
7.5
20
20
20
67
139
184
0 to + 75
-55 to +100
-55 to +150
0.01
0.01
0.01
DESIGN DATA
CDLL936
CDLL936A
CDLL936B
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
CASE: DO-213AA, Hermetically sealed
glass case. (MELF, SOD-80, LL34)
CDLL937
CDLL937A
CDLL937B
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
LEAD FINISH: Tin / Lead
CDLL938
CDLL938A
CDLL938B
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
FIGURE 1
POLARITY: Diode to be operated with
the banded (cathode) end positive.
MOUNTING POSITION: Any.
NOTE 1
Zener impedance is derived by superimposing on lZTA 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.
MOUNTING SURFACE SELECTION:
The Axial Coefficient of Expansion
(COE) Of this Device is Approximately
+6PPM/°C. The COE of the Mounting
Surface System Should Be Selected To
Provide A Suitable Match With This
Device.
6 LAKE STREET, LAWRENCE, MASSACHUSETTS 01841
PHONE (978) 620-2600
FAX (978) 689-0803
WEBSITE: http://www.microsemi.com
99
Pd, Rated Power
Dissipation (mW)
CDLL935
thru
CDLL938B
600
500
400
300
200
100
0
0
25
50
75
100
125
TL, Ambient temperature (°C)
150
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
100
10
175