PANJIT 1SMA4734

DATA SHEET
1SMA4728~1SMA4764
SURFACE MOUNT SILICON ZENER DIODE
VOLTAGE
3.3 to 100 Volts
POWER
1.0 Watts
SMA/DO-214AC
Unit: inch (mm)
FEATURES
• For surface mounted applications in order to optimize board space.
.114(2.90)
.098(2.50)
• Low profile package
• Built-in strain relief
.062(1.60)
.047(1.20)
• Glass passivated junction
• Low inductance
• Typical IR less than 5.0µA above 11V
• Plastic package has Underwriters Laboratory Flammability
Classification 94V-O
.181(4.60)
.157(4.00)
• High temperature soldering : 260°C /10 seconds at terminals
.096(2.44)
environment substance directive request
.012(.305)
.006(.152)
.078(2.00)
• Pb free product are available : 99% Sn above can meet Rohs
.060(1.52)
.030(0.76)
MECHANICALDATA
.008(.203)
.002(.051)
.208(5.28)
.188(4.80)
Case: JEDEC DO-214AC,Molded plastic over passivated junction.
Terminals: Solder plated,solderable per MIL-STD-202G, Method 208
Polarity: Color band denotes positive end (cathode)
Standard Packaging:12mm tape (EIA-481)
Weight: 0.002 ounce, 0.064 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
P aram eter
S ym bol
Value
U nits
P w ak P ulse P ow erD issipation on TA =50 C (N otes A )
D erate above 50O C
PD
1.0
6.67
W atts
m W /O C
P eak Forw ard S urge C urrent8.3m s single halfsine-w ave
superim posed on rated load (JE D E C m ethod)
IFSM
10
A m ps
TJ,TSTG
-55 to + 150
O
O perating Junction and S torage Tem perature R ange
O
C
NOTES:
A. Mounted on 5.0mm2 (.013mm thick) land areas.
B. Measured on8.3ms, and single half sine-wave or equivalent square wave ,duty cycle=4 pulses per minute maximum.
C. Tolerance and Type Number Designation. The type numbers listed have a standard tolerance on the nominal zener
voltage of ± 5%.
STAD-JAN.27.2005
PAGE . 1
Maximum Zener Impedance
V Z @ IZT
Part Number
Nom. V
Min. V
Maximum
Leakage
Current
IR @V R
Marking Code
Package
1.0
728B
SMA
ZZT @ IZT
ZZK @ IZK
Max. V
O
mA
O
mA
uA
V
76.0
400
1.00
100
1.0 Watt ZENER Diodes -- continued
1SMA4728
3.3
3.1
3.5
10.0
1SMA4729
3.6
3.4
3.8
10.0
69.0
400
1.00
100
1.0
729B
SMA
1SMA4730
3.9
3.7
4.1
9.0
64.0
400
1.00
50
1.0
730B
SMA
1SMA4731
4.3
4.1
4.5
9.0
58.0
400
1.00
10
1.0
731B
SMA
1SMA4732
4.7
4.5
4.9
8.0
53.0
500
1.00
10
1.0
732B
SMA
1SMA4733
5.1
4.8
5.4
7.0
49.0
550
1.00
10
1.0
733B
SMA
1SMA4734
5.6
5.3
5.9
5.0
45.0
600
1.00
10
2.0
734B
SMA
1SMA4735
6.2
5.9
6.5
2.0
41.0
700
1.00
10
3.0
735B
SMA
1SMA4736
6.8
6.5
7.1
3.5
37.0
700
1.00
10
4.0
736B
SMA
1SMA4737
7.5
7.1
7.9
4.0
34.0
700
0.50
10
5.0
737B
SMA
1SMA4738
8.2
7.8
8.6
4.5
31.0
700
0.50
10
6.0
738B
SMA
1SAM4739
9.1
8.6
9.6
5.0
28.0
700
0.50
10
7.0
739B
SMA
1SMA4740
10.0
9.5
10.5
7.0
25.0
700
0.25
10
7.6
740B
SMA
1SMA4741
11.0
10.5
11.6
8.0
23.0
700
0.25
0.1
8.4
741B
SMA
1SMA4742
12.0
11.4
12.6
9.0
21.0
700
0.25
0.1
9.1
742B
SMA
1SMA4743
13.0
12.4
13.7
10.0
19.0
700
0.25
0.1
9.9
743B
SMA
1SMA4744
15.0
14.3
15.8
14.0
17.0
700
0.25
0.1
11.4
744B
SMA
1SMA4745
16.0
15.2
16.8
16.0
15.5
700
0.25
0.1
12.2
745B
SMA
1SMA4746
18.0
17.1
18.9
20.0
14.0
750
0.25
0.1
13.7
746B
SMA
1SMA4747
20.0
19.0
21.0
22.0
12.5
750
0.25
0.1
15.2
747B
SMA
1SMA4748
22.0
20.9
23.1
23.0
11.5
750
0.25
0.1
16.7
748B
SMA
1SMA4749
24.0
22.8
25.2
25.0
10.5
750
0.25
0.1
18.2
749B
SMA
1SMA4750
27.0
25.7
28.4
35.0
9.5
750
0.25
0.1
20.6
750B
SMA
1SMA4751
30.0
28.5
31.5
40.0
8.5
1000
0.25
0.1
22.8
751B
SMA
1SMA4752
33.0
31.4
34.7
45.0
7.5
1000
0.25
0.1
25.1
752B
SMA
1SMA4753
36.0
34.2
37.8
50.0
7.0
1000
0.25
0.1
27.4
753B
SMA
1SMA4754
39.0
37.1
41
60.0
6.5
1000
0.25
0.1
29.7
754B
SMA
1SMA4755
43.0
40.9
45.2
70.0
6.0
1500
0.25
0.1
32.7
755B
SMA
1SMA4756
47.0
44.7
49.4
80.0
5.5
1500
0.25
0.1
35.8
756B
SMA
1SMA4757
51.0
48.5
53.6
95.0
5.0
1500
0.25
0.1
38.8
757B
SMA
1SMA4758
56.0
53.2
58.8
110
4.5
2000
0.25
0.1
42.6
758B
SMA
1SMA4759
62.0
58.9
65.1
125
4.0
2000
0.25
0.1
47.1
759B
SMA
1SMA4760
68.0
64.6
71.4
150
3.7
2000
0.25
0.1
51.7
760B
SMA
1SMA4761
75.0
71.3
78.8
175
3.3
2000
0.25
0.1
56.0
761B
SMA
1SMA4762
82.0
77.9
86.1
200
3.0
3000
0.25
0.1
62.2
762B
SMA
1SMA4763
91.0
86.5
95.6
250
2.8
3000
0.25
0.1
69.2
763B
SMA
1SMA4764
100
95.0
105
350
2.5
3000
0.25
0.1
76.0
764B
SMA
STD-JAN.27.2005
PAGE . 2
NOTE:
1. Tolerance and Type Number Designation. The type umbers 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 measured at 90 seconds while maintaining
o
o
the lead temperature (T L ) at 30 C + 1 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 an rms value equal to 10% of the dc zener current (Izt or Izk) is superimposed on Izt or Izk.
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
P D , MAXIMUM POWER DISSIPATION (WATTS)
RATING AND CHARACTERISTICS CURVES
1.0
L=LEAD LENGTH
TO HEAT SINK
0.75
0.5
0.25
0
0
20
40
60
80
100
120
140 160 180
200
O
T L , LEAD TEMPERATURE ( C)
FIGURE.1 POWER TEMPERATURE DERATING CURVE
a.RANGE FOR UNITS TO 12 VOLTS
b.RANGE FOR UNITS 12 TO 100 VOLTS
FIGURE.2 TEMPERATURE COEFICIENTS
(-55 OC TO +150 OC TEMPERATURE RANGE; 90% OF THE UNITS ARE IN THE RANGES INDICATED.)
STAD-JAN.27.2005
PAGE . 3
FIGURE.3TYPICAL THERMAL RESISTANCE versus LEAD LENGTH
FIGURE.4 EFFECT OF ZENER CURRENT
FIGU R E.5 MAXIMUM SURGE POWER
FIGURE.6 EFFECT OF ZENER CURRENT ON ZENER IMPEDANCE
STAD-JAN.27.2005
FIGURE.7 EFFECT OF ZENER VOLTAGE ON ZENER IMPEDANCE
PAGE . 4
Vz, ZENER VOLTAGE (VOLTS)
m
FIGURE.9 TYPICAL CAPACITANCE versus Vz
FIGURE.8 TYPICAL LEAKAGE CURRENT
STAD-JAN.27.2005
FIGURE.10 TYPICAL FORWARD CHARACTERISTICS
PAGE . 5