• 1N941BUR-1, 1N943UR-1B, 1N944BUR-1 AND 1N945BUR-1 AVAILABLE IN
JAN, JANTX, JANTXV AND JANS PER MIL-PRF-19500/157
1N941BUR-1 thru1N945BUR-1
and
• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
• LEADLESS PACKAGE FOR SURFACE MOUNT
CDLL941 thru CDLL945B
• 11.7 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
lR = 15 µA @ 25°C & VR = 8 Vdc
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
D
F
1.60
0.41
3.30
1.70 0.063 0.067
0.55 0.016 0.022
3.70 .130 .146
G
G1
S
2.54 REF.
0.03 MIN.
.100 REF.
.001 MIN.
CDI
TYPE
NUMBER
ZENER
VOLTAGE
ZENER
TEST
CURRENT
MAXIMUM
ZENER
IMPEDANCE
VOLTAGE
TEMPERATURE
STABILITY
TEMPERATURE
RANGE
EFFECTIVE
TEMPERATURE
COEFFICIENT
V
@ I
I
Z
V
Z
ZT
ZT
ZT
ZT
MAXIMUM
(Note 2)
FIGURE 1
(Note 1)
OHMS
DESIGN DATA
VOLTS
mA
mV
°C
% / °C
CDLL941
CDLL941A
CDLL941B
11.12 - 12.28
11.12 - 12.28
11.12 - 12.28
7.5
7.5
7.5
30
30
30
88
181
239
0 to + 75
-55 to +100
-55 to +150
0.01
0.01
0.01
CASE: DO-213AA, Hermetically sealed
glass case. (MELF, SOD-80, LL34)
CDLL942
CDLL942A
CDLL942B
11.12 - 12.28
11.12 - 12.28
11.12 - 12.28
7.5
7.5
7.5
30
30
30
44
90
120
0 to + 75
-55 to +100
-55 to +150
0.005
0.005
0.005
LEAD FINISH: Tin / Lead
CDLL943
CDLL943A
CDLL943B
11.12 - 12.28
11.12 - 12.28
11.12 - 12.28
7.5
7.5
7.5
30
30
30
18
36
47
0 to + 75
-55 to +100
-55 to +150
0.002
0.002
0.002
POLARITY: Diode to be operated with
the banded (cathode) end positive.
CDLL944
CDLL944A
CDLL944B
11.12 - 12.28
11.12 - 12.28
11.12 - 12.28
7.5
7.5
7.5
30
30
30
9
18
24
0 to + 75
-55 to +100
-55 to +150
0.001
0.001
0.001
MOUNTING POSITION: Any.
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.
CDLL945
CDLL945A
CDLL945B
11.12 - 12.28
11.12 - 12.28
11.12 -12.28
7.5
7.5
7.5
30
30
30
4
9
12
0 to + 75
-55 to +100
-55 to +150
0.0005
0.0005
0.0005
NOTE 1
NOTE 2
Zener impedance is derived by superimposing on l A 60Hz rms a.c.
ZT
current equal to 10% of l
.
ZT
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
WEBSITE: http://www.cdi-diodes.com
FAX (781) 665-7379
E-mail: mail@cdi-diodes.com