BZX79C Series
MECHANICAL DATA
Dimensions in mm(inches)
VOLTAGE REGULATOR
DIODE IN A
0.51 ± 0.10
(0.02 ± 0.004)
0.31
(0.012)
rad.
CERAMIC SURFACE MOUNT
PACKAGE
FOR HI–REL APPLICATIONS
3
2
1
1.91 ± 0.10
(0.075 ± 0.004)
A
0.31
(0.012)
rad.
3.05 ± 0.13
(0.12 ± 0.005)
1.40
(0.055)
max.
FEATURES
1.02 ± 0.10
(0.04 ± 0.004)
A =
• HERMETIC CERAMIC SURFACE MOUNT
PACKAGE (SOT23 COMPATIBLE)
SOT23 CERAMIC
(LCC1 PACKAGE)
• VOLTAGE RANGE 2.4 TO 100V
Underside View
Pad 1 – Anode
Pad 2 – N/C
Pad 3 – Cathode
ABSOLUTE MAXIMUM RATINGS
PTOT
Power Dissipation
TAMB = 25°C
500mW
4mW/°C
Derate above 25°C
TJ
Maximum Junation Temperature
Storage Temperature Range
Soldering Temperature
–65 to +200°C
–65 to +200°C
230°C
TSTG
TSOL
RθJA
RθJ–MB
(5 seconds max.)
Thermal Resistance Junction to Ambient
336°C/W
Thermal Resistance Junction to Mounting Base
140°C/W
ELECTRICAL CHARACTERISTICS (T = 25°C unless otherwise stated)
A
Parameter
Test Conditions
Min.
Typ.
Max. Units
For V nom. ≤ 24V, I = 5mA
Z
Z
V
Zener Voltage
V min. V nom. V max.
V
Z
Z
Z
Z
For V nom. ≥ 27V, I = 2mA
Z
Z
V = V test
I max.
R
R
R
I
Reverse Current
µA
Ω
R
V = V test
T
= 150°C
I max
R
R
R
AMB
Z
Z
Small Signal Breakdown Impedance I = I test
Z max.
Z
Z
Z
Z
Z
Small Signal Breakdown Impedance For V nom. ≤ 24V,
I
I
= 1mA
Z
ZK
ZK
Z max.
Ω
K
near breakdown knee
For V nom. ≥ 27V,
= 0.5mA
Z
See table 1 for type variants and test parameters.
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
Document Number 4036
Issue 1
E-mail: sales@semelab.co.uk
Website: http://www.semelab.co.uk