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PHONE (978) 620-2600 FAX (978) 689-0803
WEBSITE: http://www.microsemi.com
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
= 15
µ
A @ 25°C & V
R
= 8 Vdc
ELECTRICAL CHARACTERISTICS @ 25°C, unless otherwise specified.
CDI ZENER ZENER MAXIMUM VOLTAGE TEMPERATURE EFFECTIVE
TYPE VOLTAGE TEST ZENER TEMPERATURE RANGE TEMPERATURE
NUMBER CURRENT IMPEDANCE STABILITY COEFFICIENT
V
Z
@ I
ZT
I
ZT
Z
ZT
V
ZT
MAXIMUM
(Note 1) (Note 2)
VOLTS mA OHMS mV °C % / °C
CDLL941 11.12 - 12.28 7.5 30 88 0 to + 75 0.01
CDLL941A 11.12 - 12.28 7.5 30 181 -55 to +100 0.01
CDLL941B 11.12 - 12.28 7.5 30 239 -55 to +150 0.01
CDLL942 11.12 - 12.28 7.5 30 44 0 to + 75 0.005
CDLL942A 11.12 - 12.28 7.5 30 90 -55 to +100 0.005
CDLL942B 11.12 - 12.28 7.5 30 120 -55 to +150 0.005
CDLL943 11.12 - 12.28 7.5 30 18 0 to + 75 0.002
CDLL943A 11.12 - 12.28 7.5 30 36 -55 to +100 0.002
CDLL943B 11.12 - 12.28 7.5 30 47 -55 to +150 0.002
CDLL944 11.12 - 12.28 7.5 30 9 0 to + 75 0.001
CDLL944A 11.12 - 12.28 7.5 30 18 -55 to +100 0.001
CDLL944B 11.12 - 12.28 7.5 30 24 -55 to +150 0.001
CDLL945 11.12 - 12.28 7.5 30 4 0 to + 75 0.0005
CDLL945A 11.12 - 12.28 7.5 30 9 -55 to +100 0.0005
CDLL945B 11.12 -12.28 7.5 30 12 -55 to +150 0.0005
• 1N941BUR-1, 1N943UR-1B, 1N944BUR-1 AND 1N945BUR-1 AVAILABLE IN
JAN, JANTX, JANTXV AND JANS PER MIL-PRF-19500/157
• TEMPERATURE COMPENSATED ZENER REFERENCE DIODES
• LEADLESS PACKAGE FOR SURFACE MOUNT
• 11.7 VOLT NOMINAL ZENER VOLTAGE
• METALLURGICALLY BONDED, DOUBLE PLUG CONSTRUCTION
1N941BUR-1 thru1N945BUR-1
and
CDLL941 thru CDLL945B
FIGURE 1
DESIGN DATA
CASE: DO-213AA, Hermetically sealed
glass case. (MELF, SOD-80, LL34)
LEAD FINISH: Tin / Lead
POLARITY: Diode to be operated with
the banded (cathode) end positive.
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.
MILLIMETERS INCHES
DIM MIN MAX MIN MAX
D 1.60 1.70 0.063 0.067
F 0.41 0.55 0.016 0.022
G 3.30 3.70 .130 .146
G1 2.54 REF. .100 REF.
S 0.03 MIN. .001 MIN.
NOTE 1 Zener impedance is derived by superimposing on l
ZT
A 60Hz rms a.c.
current equal to 10% of l
ZT
.
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.
101
