Formosa MS
1WATT SURFACE MOUNT ZENER DIODE
FEATURES
!
PLASTIC PACKAGE HAS UNDERWRITERS LABORATORY
FLAMMABILITY CLASSIFICATION 94V-0
!
LOW ZENER IMPEDANCE
!
EXCELLENT CLAMPING CAPABILITY
MECHANICAL DATA
!
CASE：MOLDED PLASTIC
!
TERMINALS：SOLDER PLATED
!
POLARITY：INDICATED BY CATHODE BAND
!
WEIGHT：0.04 GRAMS
.161(4.1)
.146(3.7 )
ZM200X
THRU
ZM330Y
.071(1.8 )
.055(1.4 )
.0012(0.3) Typ.
.110(2.8)
.094(2.4 )
.063(1.6)
.055(1.4)
.035(0.9) Typ.
.035(0.9) Typ.
CASE-SOD-123
DIMENSIONS IN INCHES AND (MILLIMETERS)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
RATINGS AT 25°C AMBIENT TEMPERATURE UNLESS OTHERWISE SPECIFIED
STORAGE AND OPERATING TEMPERATURE RANGE -55℃ TO + 150℃
ELECTRICAL CHARACTERISTICS (TA=25℃UNLESS OTHERWISE NOTED) VF=1.2V MAX, IF = 200mA FOR ALL TYPES
MAXIMUM REVERSE
ZENER
DYNAMIC IMPEDANCES
CURRENT
BREAKDOWN
@
＠
MEASUREMENT
VOLTAGE
25℃ T
A
TYPE
VOLTAGE AND 25℃TA
Vz @I
ZT
Z
ZT
I
ZT
I
R
VR
MIN.
TYP.
MAX.
Ohms
mA
V
µA
ZM200-X
ZM200-Y
ZM200-Z
ZM220-Y
ZM220-Z
ZM240-Y
ZM240-Z
ZM270-X
ZM270-Y
ZM270-Z
ZM300-X
ZM300-Y
ZM300-Z
ZM330-X
ZM330-Y
ZM330-Z
180
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
190
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
200
210
220
230
240
250
260
270
280
290
300
310
320
330
340
350
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
5000
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
152
160
168
176
184
216
225
234
243
252
261
270
279
288
297
306
MARKING
BX
BY
BZ
CY
CZ
DY
DZ
EX
EY
EZ
GX
GY
GZ
HX
HY
HZ
Formosa MicroSemi
RATING AND CHARACTERISTIC CURVES ZM200X THRU ZM330Y
FIG. 2 - ZENER VOLTAGE VERSUS ZENER CURRENT
FIG. 1 - MAXIMUM CONTINUOUS POWER DISSIPARION
10
REVERSE POWER DISSIPATION,
WATTS
I
Z
, ZENER CURRENT (mA)
1
5
2
1
0.5
0.2
0.1
100
25
50
75
100
125
150
175
150
200
250
300
350
400
SINGLE PHASE
HALF WAVF
60H
Z
RESISTIVE OR
INDUCTIVE LOAD
0.375”(9.5mm) LEAD LENGTHS
0
V
Z
, ZENER VOLTAGE (VOLTS)
LEAD TEMPERATURE,
℃
FIG. 3 - TYPICAL INSTANTANEOUS
FORWARD CHARCTERISTICS
10
INSTANTANEOUS FORWARD CURRENT,
AMPERES
10
INSTANTANEOUS REVERSE
CURRENT,MICROAMPERES
4
1.0
.4
0.1
.04
.01
T
J
=25℃
PULSE WIDTH=300us
1% DUTY CYCLE
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
1.0
T
J
=25℃
0.1
0
20
40
60
80
100
120
140
PERCENT OF RATED ZENER VOLTAGE
.01
.4
.6
.8
1.0
1.2
1.4 1.6
INSTANTANEOUS
FORWARD VOLTAGE, VOLTS
FIG. 5 - TYPICAL TEMPERATURE COEFFICIENTS
θ
VZ
TEMPERATURE COEFFICIENT
(mV/℃)
＠
I
ZT
℃
1000
500
200
100
50
20
10
10
20
50
100
200
400
1000
V
Z
ZENER VOLTAGE
＠
I
ZT
(VOLTS)
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