Dimensions in inches and (millimeters)
- 586 - Version: C08
1SMA4737 - 1SMA200Z
1.25 W atts Surfa ce Mount Silicon Zener Diode
SMA/DO-214AC
Features
For surface mounted applicatio ns in order to
optimize board space
Low profile package
Built-in strain relief
Glass passivated junction
Low inductance
Typical IR less than 5.0uA above 7.5V
High temperature soldering guaranteed:
260oC / 10 seconds at terminals
Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
Mechanical Data
Case: Molded plastic over passivated junction
Terminals: Pure tin plated lead free,
solderable per MIL-STD-750, Method 2025
Polarity:Color Band denotes positive e nd
(cathode)
Standard packaging: 12mm tape (EIA-481)
Weight: 0.002 ounces, 0.064 gram
Maximum Ratings and Electrical Characteristics
Rating at 25 oC ambient temperature unless otherwise specified.
Type Number Symbol Value Units
Power Dissipation, RthJA<30 K/W, Tamb=60oC PD 3.0 Watts
Power Dissipation, RthJA<100 K/W, Tamb=25oC PD 1.25 Watts
Non Repetitive Peak Surge Power Dissipation(Note 1) PZSM 60 Watts
Non Repetitive Peak Forward Surge Current, 8.3 ms
Single Half Sine-wave Superimposed on Rated Load
(JEDEC method) IFSM 10.0 Amps
Operating and Storage Temperature Range TJ, TSTG -55 to + 150 oC
Notes: 1. Non Repetitive Peak surge PD Test Conditions: tp=100uS sq. pulse, Tj=25 oC prior to surge.
- 587 -
ELECTRICAL CHARACTERISTICS (TA=25OC unless otherw ise noted) VF=1.2V max, IF=200mA for all types.
Nominal
Device Zener Voltage Test Surge Current @
Device Marking
V
z
@ I
zt Current
T
A
= 25
O
C
(Note 1) Code Voltage
I
ZT
Z
ZT @
I
ZT Ir - mA
(Notes 2 & 3) mA Ohms Ohms mA uA Max Volts (Note 5)
1SMA4737 737A 7.5 100 3 700 0.25 5.0 5.0 607
1SMA4738 738A 8.2 100 3.5 700 0.25 5.0 6.0 555
1SMA4739 739A 9.1 50 4 700 0.25 5.0 7.0 500
1SMA4740 740A 10 50 4 700 0.25 5.0 7.5 455
1SMA4741 741A 11 23 8 700 0.25 5.0 8.4 414
1SMA4742 742A 12 21 9 700 0.25 5.0 9.1 380
1SMA4743 743A 13 19 10 700 0.25 5.0 9.9 344
1SMA4744 744A 15 17 14 700 0.25 5.0 11.4 304
1SMA4745 745A 16 15.5 16 700 0.25 5.0 12.2 285
1SMA4746 746A 18 14.0 20 750 0.25 5.0 13.7 250
1SMA4747 747A 20 12.5 22 750 0.25 5.0 15.2 225
1SMA4748 748A 22 11.5 23 750 0.25 5.0 16.7 205
1SMA4749 749A 24 10.5 25 750 0.25 5.0 18.2 190
1SMA4750 750A 27 9.5 35 750 0.25 5.0 20.6 170
1SMA4751 751A 30 8.5 40 1000 0.25 5.0 22.8 150
1SMA4752 752A 33 7.5 45 1000 0.25 5.0 25.1 135
1SMA4753 753A 36 7.0 50 1000 0.25 5.0 27.4 125
1SMA4754 754A 39 6.5 60 1000 0.25 5.0 29.7 115
1SMA4755 755A 43 6.0 70 1500 0.25 5.0 32.7 110
1SMA4756 756A 47 5.5 80 1500 0.25 5.0 35.8 95
1SMA4757 757A 51 5.0 95 1500 0.25 5.0 38.8 90
1SMA4758 758A 56 4.5 110 2000 0.25 5.0 42.6 80
1SMA4759 759A 62 4.0 125 2000 0.25 5.0 47.1 70
1SMA4760 760A 68 3.7 150 2000 0.25 5.0 51.7 65
1SMA4761 761A 75 3.3 175 2000 0.25 5.0 56.0 60
1SMA4762 762A 82 3.0 200 3000 0.25 5.0 62.2 55
1SMA4763 763A 91 2.8 250 3000 0.25 5.0 69.2 50
1SMA4764 764A 100 2.5 350 3000 0.25 5.0 76.0 45
1SMA110Z 110A 110 2.3 450 4000 0.25 5.0 83.6 -
1SMA120Z 120A 120 2.0 550 4500 0.25 5.0 91.2 -
1SMA130Z 130A 130 1.9 700 5000 0.25 5.0 98.8 -
1SMA150Z 150A 150 1.7 1000 6000 0.25 5.0 114.0 -
1SMA160Z 160A 160 1.6 1100 6500 0.25 5.0 121.6 -
1SMA180Z 180A 180 1.4 1200 7000 0.25 5.0 136.8 -
1SMA200Z 200A 200 1.2 1500 8000 0.25 5.0 152.0 -
Notes: 1: Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal
zener voltage of ±5%.
2. Specials Available Include:
A . Nominal zener voltages between the voltages shown and tighter voltage tolerances.
B. Matched sets.
3. Zener Voltage (VZ) Measurement. Guarantees the zener voltage when messured at 90 seconds w hile maintaining
the lead temperature (T
L
) at 30
O
C± 1
O
C, from the diode body.
4. Zener Impedance (ZZ
) Derivation. The zener impedance is derived from the 60 cycle ac voltage, which results when an ac
current having and rms value equal to 10% of the dc zener current (
I
ZT
or
I
ZK
) is superimposed on
I
ZT
or
I
ZK
.
5. Surge Current (Ir) Non-Repetitive. The rating listed 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; however, actual device capability is as described in Figure 10.
Maximum Zener Impedance (Note 4)
Leakage Current
Z
ZK @ IZK
I
R @ VR
Version: C08
FIG.1- POWER TEMPERATURE DERATING CURVE
FIG.2- TYPICAL FORWARD CHARACTERISTICS
FIG.3- EFFECT OF ZENER CURRENT
ON ZENER IMPEDANCE FIG.5- TYPICAL LEAKAGE CURRENT
FIG.4- EFFECT OF ZENER VOLTAGE
ON ZENER IMPEDANCE
P MAXIMUM POWER DISSIPATION (WATTS)
D
,
IF, FORWARD CURRENT (mA)
AMBIENT TEMPERATURE( C)
o
V FORWARD VOLTAGE (VOLTS)
F
,
I,
Z
ZENER CURRENT (mA)
I,
Z
ZENER CURRENT (mA) V,
Z
NOMINAL ZENER VOLTAGE (VOLTS)
Z , DYNAMIC IMPEDANCE (OHMS)Z
IR, LEAKAGE CURRENT ( A)
Z , DYNAMIC IMPEDANCE (OHMS)Z
0 20 40 60 80 100 120 140 160 180 200
MINIMUM
MAXIMUM
70 C
o
150 C
o
25 C
o
0C
o
0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
1
2
5
10
20
50
100
200
500
1000
T = 25 C
I (rms)= 0.1 I (dc)
f = 1KHz
J
ZZ
o
47V
27V
0.8V
0.1
0.25
0.50
0.75
1.0
1.25
0.2 0.5 1 2 5 10 20 50 100
1
2
5
10
20
50
100
200
500
1000
1
T = 25 C
I (rms)= 0.1 I (dc)
f = 1KHz
J
ZZ
o
I = 1.0mAZ
5.0mA
20mA
2 3 5 7 10 20 30 50 70 100
1
2
5
7
10
20
50
70
100
200
500
700
1000
TYPICAL LEAKAGE CURRENT
AT 80% OF NOMINAL
BREAKDOWN VOLTAGE
+125 C
o
+25 C
o
3456789101112131415
0.001
0.002
0.005
0.007
0.01
0.02
0.05
0.07
0.1
0.2
0.5
0.7
1
2
5
7
10
20
50
70
100
200
500
700
1000
2000
5000
7000
10000
0
RATINGS AND CHARACTERISTIC CURVES (1SMA4737 THRU 1SMA200Z)
Version:C08
FIG.6- TYPICAL CAPACITANCE versus Vz FIG.7- TEMPERATURE COEFFICIENTS
FIG.8- TEMPERATURE COEFFICIENTS FIG.9- EFFECT OF ZENER CURRENT
V , FORWARD VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
Z
C, CAPACITANCE (pF)
OV , TEMPERAYURE COEFFICIENT (mV/ C)
Z
o
OV , TEMPERAYURE COEFFICIENT (mV/ C)
Z
o
OV , TEMPERAYURE COEFFICIENT (mV/ C)
Z
o
0V BIAS
1.0V BIAS
50% OF BREAKDOWN BIAS
1 10 100
4
8
10
100
200
300
400
b-RANGE FOR UNITS 11 TO 100 VOLTS
V@IZZT
RANGE
10 20 30 50 70 100
1
2
3
5
7
10
20
30
50
70
100
a-RANGE FOR UNITS TO 12 VOLTS
V@IZZT
RANGE
23456 7 8 9 10 11 12
-2.0
-4.0
0
+2.0
+4.0
+6.0
+8.0
+10
+12
V@I
TJ=25 C
ZZT
o
20mA
0.01mA
1.0mA
NOTE: BELOW 3 VOLTS AND ABOVE a VOLTS
CHANGES IN ZENER CURRENT OO NOT
AFFECT TEMPERATURE COEFFICIENTS
345678
-4.0
-2.0
0
+2.0
+4.0
+6.0
Version: C08
FIG.10- MAXIMUM SURGE POWER
Ppk, PEAK SURGE POWER IWATTSO
PW, PULSE WIDTH (ms)
RECTANGULAR
WAVEFORM
TJ = 25 C PRIOR TO
INITIAL PULSE
o
11V-91V NON-REPETITIVE
0.8V-10V NON-REPETITIVE
5% DUTY CYCLE
10% DUTY CYCLE
20% DUTY CYCLE
1
0.01 0.02 0.05 0.1 0.2 0.5 1 2 5 10 20 50 100 200 500 1000
2
3
5
7
10
20
30
50
70
100
RATINGS AND CHARACTERISTIC CURVES (1SMA4737 THRU 1SMA200Z)
