1SMA4742 Taiwan Semiconductor, 1SMA4742 Datasheet - Page 4

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1SMA4742

Manufacturer Part Number
1SMA4742
Description
Zener Diodes 12V
Manufacturer
Taiwan Semiconductor
Datasheet

Specifications of 1SMA4742

Zener Voltage
12 V
Voltage Tolerance
5 %
Power Dissipation
1 W
Maximum Reverse Leakage Current
5 uA
Maximum Zener Impedance
9 Ohms
Maximum Operating Temperature
+ 150 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 55 C
Package / Case
DO-214AC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
R2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
1SMA4742
Manufacturer:
PANJIT
Quantity:
135 000
Part Number:
1SMA4742
Manufacturer:
VISHAY/威世
Quantity:
20 000
100
400
300
200
100
70
50
30
20
10
10
100
7
5
3
2
1
8
4
FIG.6- TYPICAL CAPACITANCE versus Vz
FIG.8- TEMPERATURE COEFFICIENTS
70
50
30
20
10
0.01
7
5
3
2
1
1
FIG.10- MAXIMUM SURGE POWER
10
20% DUTY CYCLE
0.02
RATINGS AND CHARACTERISTIC CURVES (1SMA4737 THRU 1SMA200Z)
b-RANGE FOR UNITS 11 TO 100 VOLTS
V , FORWARD VOLTAGE (VOLTS)
50% OF BREAKDOWN BIAS
Z
0.05
V , ZENER VOLTAGE (VOLTS)
Z
20
RANGE
0.1
30
10
0.2
50
0.5
V @ I
Z
0V BIAS
1.0V BIAS
ZT
70
PW, PULSE WIDTH (ms)
1
100
100
2
5
10
+6.0
+4.0
+2.0
-2.0
-4.0
+8.0
+6.0
+4.0
+2.0
+12
+10
-2.0
-4.0
0
0
3
FIG.7- TEMPERATURE COEFFICIENTS
FIG.9- EFFECT OF ZENER CURRENT
20
2
V @ I
TJ=25 C
Z
3
20mA
50
ZT
o
4
4
a-RANGE FOR UNITS TO 12 VOLTS
V , ZENER VOLTAGE (VOLTS)
Z
V , ZENER VOLTAGE (VOLTS)
100
Z
5
NOTE: BELOW 3 VOLTS AND ABOVE a VOLTS
RECTANGULAR
WAVEFORM
TJ = 25 C PRIOR TO
INITIAL PULSE
5
200
6
1.0mA
CHANGES IN ZENER CURRENT OO NOT
AFFECT TEMPERATURE COEFFICIENTS
o
RANGE
7
0.01mA
500
6
8
1000
Version: C08
9
V @ I
Z
7
10
ZT
11
8
12

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