BZX55C Series
Semelab plc.
Telephone (01455) 556565. Telex: 341927. Fax (01455) 552612.
Prelim. 3/95
P
TOT
Power Dissipation
T
MB
= 25C
Derate above 25C
T
OP
Maximum Operating Ambient Temperature
T
STG
Storage Temperature Range
T
SOL
Soldering Temperature
(5 seconds max.)
R
JA
Thermal Resistance Junction to Ambient
R
JMB
Thermal Resistance Junction to Mounting Base
500mW
4mW/C
55 to +150C
65 to +175C
260C
336C/W
140C/W
MECHANICAL DATA
Dimensions in mm(inches)
2
1
0.51 0.10
(0.02 0.004)
0.31
(0.012)
1.91 0.10
(0.075 0.004)
3.05 0.13
(0.12 0.005)
2.
54
0.
13
(
0
.
10
0.
005)
0.
76
0.
1
5
(
0
.
03
0.
00
6)
1.02 0.10
(0.04 0.004)
1.40
(0.055)
max.
A
0.31
(0.012)
rad.
rad.
A =
3
VOLTAGE REGULATOR
DIODE IN A
CERAMIC SURFACE MOUNT
PACKAGE
FOR HIREL APPLICATIONS
FEATURES
HERMETIC CERAMIC SURFACE MOUNT
PACKAGE (SOT23 COMPATIBLE)
VOLTAGE RANGE 2.4 TO 75V
SOT23 CERAMIC
(LCC1 PACKAGE)
ABSOLUTE MAXIMUM RATINGS
Pad 1 Anode
Pad 2 N/C
Pad 3 Cathode
Parameter
Test Conditions
Min.
Typ.
Max.
Units
V
Z
Zener Voltage
I
R
Reverse Current
Z
Z
Small Signal Breakdown Impedance
Z
Z
Small Signal Breakdown Impedance
near breakdown knee
For V
Z
nom.
36V,
I
Z
= 5mA
For V
Z
nom.
39V,
I
Z
= 2.5mA
V
R
= V
R
test
V
R
= V
R
test
T
AMB
= 150C
I
Z
= I
Z
test
For V
Z
nom.
36V,
I
ZK
= 1mA
For V
Z
nom.
39V,
I
ZK
= 0.5mA
V
Z
min.
V
Z
nom. V
Z
max.
I
R
max.
I
R
max
(2)
Z
Z
max.
Z
K
max.
V
A
ELECTRICAL CHARACTERISTICS
(T
A
= 25C unless otherwise stated)
See table 1 for type variants and test parameters.
Underside View