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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

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

VZ @ I ZT

I ZT

ZZT

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

• 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 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.

101