CHENMKO ENTERPRISE CO.,LTD
SURFACE MOUNT ZENER
SILICON PLANAR POWER ZENER DIODES
VOLTAGE RANGE 2.4V TO 39V
MMEZ5221BGP
THRU
MMEZ5259BGP
FEATURE
* Small surface mounting type. (SC-88/SOT-363)
*
*
*
*
*
*
High temperature soldering type.
ESD rating of class 3(>16 kV) per human body model.
Silicon planar zener diodes.
Silcon-oxide passivated junction.
Low temperature coefficient voltage
200 mW Rating on FR-4 or FR-5 Board
1.2~1.4
SC-88/SOT-363
(1)
(6)
MECHANICAL
* SC-88 Packaging.
* Mounting position: Any.
0.65
0.65
2.0~2.2
(4)
0.15~0.35
(3)
1.15~1.35
0.08~0.15
0.1 Min.
0.8~1.1
0~0.1
2.15~2.45
CIRCUIT
6
4
1
3
Dimensions in millimeters
SC-88/SOT-363
MAXIMUM RATINGES
( At T
A
= 25
o
C unless otherwise noted )
RATINGS
Zener Current ( see Table "Characteristics" )
Max. Steady State Power Dissipation @T
A
=25
o
C
Max. Operating Temperature Range
Storage Temperature Range
SYMBOL
-
P
D
T
J
T
STG
VALUE
-
200
-65 to +150
-65 to +150
UNITS
-
mW
o
C
C
o
ELECTRICAL CHARACTERISTICS
( At T
A
= 25 C unless otherwise noted )
CHARACTERISTICS
Thermal Resistance Junction to Ambient
Max. Instantaneous Forward Voltage at I
F=
10mA
SYMBOL
R
JA
o
MIN.
-
-
TYP.
-
-
MAX.
625
0.9
UNITS
o
C/W
V
F
Volts
2004-09
NOTES : 1. The JEDEC type numbers listd have a standaerd tolerance on the normal zener voltage of +10%, Suffix B=+5%.Suffix S=+3%
2. The zener impedance is derived from 1KHz AC voltage, which results when an AC current having an RMS value equal to 10%
of DC zener current (I
ZT
or I
ZK
) is superimposed on I
ZT
or I
ZK
. Zener impedance is measured at two points to insure a sharp knee
on the breakdown curve to eliminate unstable units.
3. Valid provided that electrodes at distance of 10mm from case are kept ambient temperature.
4. Measured under thermal equilibrium and DC test conditions.
5. The rating listd in the electrical characteristics table is maximum peak, non-repetitive, reverse surge current of 1/2 square wave
or equivalent sine wave pulse of 1/120 second duration superimposed on the test current, I
ZT
, per JEDEC registration.
ELECTRICAL CHARACTERISTICS ( MMEZ5221BGP THRU MMEZ5259BGP )
1000
0.4
0.3
C
T
, TOTAL CAPACITANCE (pF)
P
D
, POWER DISSIPATION (W)
0V BIAS
100
0.2
10
0.1
0
0
25
50
75
100
125
150
1
1
10
V
Z
, NOMINAL ZENER VOLTAGE (V)
Fig. 2 Typical Capacitance
100
T
A
, AMBIENT TEMPERATURE (°C)
Fig. 1 Power Dissipation vs Ambient Temperature
1000
100
I
Z
= 1.0mA
100
P
PK
, PEAK SURGE POWER (W)
10
10
1
1
10
V
Z
, NOMINAL ZENER VOLTAGE (V)
Fig. 3 Zener Voltage vs. Zener Impedence
100
1
1
10
100
1000
PULSE WIDTH (ms)
Fig. 4 Maximum Non-repetitive Surge Power
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