1N4621CSM
MECHANICAL DATA
Dimensions in mm(inches)
0.51 ± 0.10
(0.02 ± 0.004)
0.31 rad.
(0.012)
3
2
1
1.91 ± 0.10
(0.075 ± 0.004)
3.05 ± 0.13
(0.12 ± 0.005)
A=
0.76 ± 0.15
(0.03 ± 0.006)
ZENER DIODE IN A
CERAMIC SURFACE MOUNT
PACKAGE
FOR HI–REL APPLICATIONS
A
1.40
(0.055)
max.
2.54 ± 0.13
(0.10 ± 0.005)
0.31 rad.
(0.012)
1.02 ± 0.10
(0.04 ± 0.004)
FEATURES
• HERMETIC CERAMIC SURFACE MOUNT
PACKAGE
• SCREENING OPTIONS AVAILABLE
LCC1 PACKAGE
(SOT23 Compatible)
Underside View
Pad 1 – Anode
Pad 2 – N/C
Pad 3 – Cathode
ABSOLUTE MAXIMUM RATINGS
P
TOT
Power Dissipation
Derate above 25°C
T
OP
T
STG
R
θJA
Maximum Operating Ambient Temperature
Storage Temperature Range
Thermal Resistance Junction to Ambient
T
AMB
= 25°C
500mW
2.85mW/°C
–65 to +200°C
–65 to +200°C
350°C/W
ELECTRICAL CHARACTERISTICS
(T
A
= 25°C unless otherwise stated)
Parameter
V
ZT
V
FT
Z
ZMT
*
I
ZM
I
R
Zener Voltage
Forward Voltage
Maximum Regulator Impedance
Maximum Rated Current
Reverse Current
Temp Coefficient of Zener Voltage
ZMT,
Test Conditions
I
ZT
= 250µA @ T
A
I
F
= 100mA
I
ZT
= 250µA @ T
A
P
TOT
= 500mW , V
ZT
= 3.78V
V
R
= 9.12V
Min.
3.42
Typ.
3.6
1.0
Max.
3.78
1700
132
7.5
-0.065
Units
V
Ω
mA
µA
%/°C
α
VZ
*
Z
the zener impedance is derived from the 1kHz voltage created when an AC current with RMS value of ± 10%
of DC zener test current is superimposed on the test current.I
ZT
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.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
Document Number 3585
Issue 1
微控制器 MCU
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