1SMA5921~1SMA5942
SURFACE MOUNT SILICON ZENER DIODE VOLTAGE
FEATURES
• For surface mounted applications in order to optimize board space. • Low profile package • Built-in strain relief • Glass passivated junction • Low inductance • Typical IR less than 1.0µA above 12V • Plastic package has Underwriters Laboratory Flammability Classification 94V-O • High temperature soldering : 260°C /10 seconds at terminals • In compliance with EU RoHS 2002/95/EC directives
.047(1.20)
6.8 to 51 Volts
POWER
1.5 Watts
MECHANICALDATA
• Case: JEDEC DO-214AC,Molded plastic over passivated junction. • Terminals: Solder plated,solderable per MIL-STD-750, Method 2026 • Polarity: Color band denotes positive end (cathode) • Standard Packaging:12mm tape (EIA-481) • Weight: 0.0023 ounce, 0.0679 gram
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25°C ambient temperature unless otherwise specified.
Parameter Peak Pulse Power Dissipation on TL=75 O C (Note A) Derate above 75
O
Symbol C
Value 1.5 10 -55 to +150
Units Watts Amps
O
PD IF S M TJ , TS T G
Peak Forward Surge Current 8.3ms single half sine-wave superimposed on rated load (JEDEC method) Operating Junction and StorageTemperature Range
C
NOTES: A.Mounted on 5.0mm2 (.013mm thick) land areas. B.Measured on 8.3ms, and single half sine-wave or equivalent square wave ,duty cycle=4 pulses per minute maximum.
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1SMA5921~1SMA5942
Nominal Zener Voltage Part Number Nom V 1SMA5921 1SMA5922 1SMA5923 1SMA5924 1SMA5925 1SMA5926 1SMA5927 1SMA5928 1SMA5929 1SMA5930 1SMA5931 1SMA5932 1SMA5933 1SMA5934 1SMA5935 1SMA5936 1SMA5937 1SMA5938 1SMA5939 1SMA5940 1SMA5941 1SMA5942 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 V Z @ I ZT Min V 6.46 7.13 7.79 8.65 9.5 10.45 11.4 12.35 14.25 15.2 17.1 19 20.9 22.8 25.65 28.5 31.35 34.2 37.05 40.85 44.65 48.45 Ma x V 7.14 7.88 8.61 9.56 10.5 11.55 12.6 13.65 15.75 16.8 18.9 21 23.1 25.2 28.35 31.5 34.65 37.8 40.95 45.15 49.35 53.55 Ω 3 3 4 4 5 6 7 7 9 10 12 14 18 19 23 26 33 38 45 53 67 70
M a x i m u m Ze n e r I m p e d a n c e Z ZT @ I ZT mA 55.1 50 45.7 41.2 37.5 34.1 31.2 28.8 25 23.4 20.8 18.7 17 15.6 13.9 12.5 11.4 10.4 9.6 8.7 8 7.3 Ω 200 400 400 500 500 550 550 550 600 600 650 650 650 700 700 750 800 850 900 950 1000 1100 Z ZK @ I ZK mA 1 0.5 0.5 0.5 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
Max. Reverse Leakage Current IR µA 5 5 5 5 5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 VR V 5.2 6 6.5 7 8 8.4 9.1 9.9 11.4 12.2 13.7 15.2 16.7 18.2 20.6 22.8 25.1 27.4 29.7 32.7 35.8 38.8
Ma rk in g Code
921A 922A 923A 924A 925A 926A 927A 928A 929A 930A 931A 932A 933A 934A 935A 936A 937A 938A 939A 940A 941A 942A
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1SMA5921~1SMA5942
q vz, TEMPERATURE COEFICENT (mV/ OC)
MAXIMUM POWER DISSIPATION, Watts
2.5 2 1.5 1 0.5 0
10 8 6 4 2 0 -2 -4 2 4 6 8 10 12
V @I Z ZT
0
20
40
60
80
100
120 140 150 180
LEAD TEMPERATURE, O C
V , ZENER VOLTAGE (VOLTS) Z
Fig.1 Steady State Power Derating
Fig.2 Zener Voltage - to 12 volts
q vz, TEMPERATURE COEFICENT (mV/ OC)
200 100 70 50 30 20 10 10 20 30 50 70 100 200
V @I Z ZT
Zz, DYNAMIC IMPEDANCE (OHMS)
1K 500 200 100 50 20 10 5 2 1 0.5 1 2 5 10 20
VZ=150V
T = 25 O C J I (rms) =0.1 I (dc) Z Z
62V
22V 12V 6.8V
50
100 200
500
Vz, ZENER VOLTAGE (VOLTS)
Iz, ZENER TEST CURRENT (mA)
Fig.3 Zener Voltage - 14 to 200 Volts
Fig.4 Effect of Zener Current
1K 200 100 70 50 30 20
10mA I Z (dc)=1mA
Ppk, PEAKSURGE POWER (WATTS)
Zz, DYNAMIC IMPEDANCE (OHMS)
500 300 200 100 50 30 20 10 0.1 0.20.3 0.5
RECTANGULAR NONREPETITIVE WAVEFORM O T J =25 C PRIOR TO INTIAL PULSE
10 7 5 3 2
20mA I Z (rms)=0.1I Z (dc)
5
7
10
20 3 0
40
50 60
70
100
1
23
5
10 20 30 50
100
Vz, ZENER VOLTAGE (VOLTS)
PW, PULSE WIDTH (ms)
Fig.5 Effect of Zener Voltage
Fig.6 Maximum Surge Power
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1SMA5921~1SMA5942
100
Iz, ZENER CURRENT (mA)
100
Iz, ZENER CURRENT (mA)
50 30 20 10 5 3 2 1 0.5 0.3 0.2 0.1 0 1 2 3 4 5 6 7 8 9 10
50 30 20 10 5 3 2 1 0.5 0.3 0.2 0.1 0 10 20 30 40 50 60 70 80 90 100
Vz, ZENER VOLTAGE (VOLTS)
Vz, ZENER VOLTAGE (VOLTS)
Fig.7 Vz = 6.8 thru 10 Volts
Fig.8 Vz = 12 thru 82 Volts
NOTE 3. ZENER VOLTAGE (Vz) MEASUREMENT Nominal zener voltage is measured with the device function in thermal equilibrium with ambient temperature at 25 OC NOTE 4. ZENER IMPEDANCE (Zz) DERIVATION Zzt and Zzk are measured by dividing the ac voltage drop across the device by the accurrent applied. The specified limits are for Iz(ac) = 0.1 Iz, (dc) with the ac freqency = 60Hz
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1SMA5921~1SMA5942
MOUNTING PAD LAYOUT
ORDER INFORMATION
• Packing information T/R - 7.5K per 13" plastic Reel T/R - 1.8Kper 7” plastic Reel
LEGAL STATEMENT Copyright PanJit International, Inc 2009
The information presented in this document is believed to be accurate and reliable. The specifications and information herein are subject to change without notice. Pan Jit makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose. Pan Jit products are not authorized for use in life support devices or systems. Pan Jit does not convey any license under its patent rights or rights of others.
STAD-FEB.10.2009 1
PAGE . 5
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