1WATT SURFACE MOUNT ZENER DIODE
FEATURES
! PLASTIC PACKAGE HAS UNDERWRITERS LABORATORY
FLAMMABILITY CLASSIFICATION 94V-0
! LOW ZENER IMPEDANCE
! EXCELLENT CLAMPING CAPABILITY
MECHANICAL DATA
! CASEMOLDED PLASTIC
! TERMINALSSOLDER PLATED
! POLARITYINDICATED BY CATHODE BAND
! WEIGHT0.04 GRAMS
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=25UNLESS OTHERWISE NOTED) VF=1.2V MAX, IF = 200mA FOR ALL TYPES
ZENER
BREAKDOWN
VOLTAGE
DYNAMIC IMPEDANCES
@
25 T
A
MAXIMUM REVERSE
CURRENT
MEASUREMENT
VOLTAGE AND 25TA
Vz @I
ZT
Z
ZT
I
ZT
I
R
VR
TYPE
MIN.
TYP.
MAX.
Ohms
mA
A
V
MARKING
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
BX
BY
BZ
CY
CZ
DY
DZ
EX
EY
EZ
GX
GY
GZ
HX
HY
HZ
ZM200X
THRU
ZM330Y
.071(1.8 )
.055(1.4 )
.161(4.1)
.146(3.7 )
.110(2.8)
.094(2.4 )
.063(1.6)
.055(1.4)
.0012(0.3) Typ.
.035(0.9) Typ.
.035(0.9) Typ.
Formosa MS
Formosa MicroSemi
RATING AND CHARACTERISTIC CURVES ZM200X THRU ZM330Y
FIG. 1 - MAXIMUM CONTINUOUS POWER DISSIPARION
1
0
RE
VE
RSE
P
O
W
E
R DISSIP
A
T
I
ON,
W
A
T
T
S
25 50 75 100 125 150 175
LEAD TEMPERATURE,
FIG. 3 - TYPICAL INSTANTANEOUS
FORWARD CHARCTERISTICS
10
1.0
0.1
.01
INST
ANT
ANE
O
US F
O
RW
ARD CURRE
NT
,
A
M
P
E
R
E
S
.4 .6 .8 1.0 1.2 1.4 1.6
INSTANTANEOUS
FORWARD VOLTAGE, VOLTS
FIG. 5 - TYPICAL TEMPERATURE COEFFICIENTS
1000
500
200
100
50
20
10
VZ
T
E
MP
E
R
AT
URE
COE
F
F
I
CIE
N
T
(
m
V
/
)
I
ZT
10 20 50 100 200 400 1000
V
Z
ZENER VOLTAGE
I
ZT
(VOLTS)
SINGLE PHASE
HALF WAVF
60H
Z
RESISTIVE OR
INDUCTIVE LOAD
0.375"(9.5mm) LEAD LENGTHS
T
J
=25
PULSE WIDTH=300us
1% DUTY CYCLE
FIG. 2 - ZENER VOLTAGE VERSUS ZENER CURRENT
10
5
2
1
0.5
0.2
0.1
I
Z
,
ZE
NE
R CURRE
N
T
(m
A)
100 150 200 250 300 350 400
V
Z
, ZENER VOLTAGE (VOLTS)
FIG. 4 - TYPICAL REVERSE CHARACTERISTICS
10
4
1.0
.4
0.1
.04
.01
INST
ANT
ANE
O
US RE
VE
RSE
CURRE
NT
,
M
ICROAMP
E
RE
S
0 20 40 60 80 100 120 140
PERCENT OF RATED ZENER VOLTAGE
T
J
=25
Formosa MicroSemi
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