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Part: SA78A
Category:
Description: 500W Transient Voltage Suppressor
Company: Diodes, Inc.
Datasheet: Download SA78A datasheet File size : 70 kB
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Datasheet text preview:
SA5.0A - SA170A
500W TRANSIENT VOLTAGE SUPPRESSOR Features
· · · · · · · · Constructed with Glass Passivated Die Excellent Clamping Capability 500W Peak Pulse Power Dissipation Fast Response Time 100% Tested at Rated Peak Pulse Power Voltage Range 5.0 - 170 Volts Unidirectional and Bi-directional Versions Available (Note 1) Plastic Case Material has UL Flammability Classification Rating 94V-0
A
B
A
D
C
DO-15
Mechanical Data
· · · · · · Case: Transfer Molded Epoxy Leads: Plated Leads, Solderable per MIL-STD-202, Method 208 Marking: Unidirectional: Type Number and Cathode Band Marking Bi-directional: Type Number Only Approx. Weight: 0.4 grams Mounting Position: Any
@ TA = 25°C unless otherwise specified Symbol Ppk Pd IFSM VF TJ, TSTG
Dim A B C D
Min 25.40 5.50 0.686 2.60
Max -- 7.62 0.889 3.6
All Dimensions in mm
Maximum Ratings
Characteristic Peak Power Dissipation, Tp = 1.0ms (Non repetitive current pulse, derated above T = 25°C) A Steady State Power Dissipation at TL = 75°C Lead Lengths 9.5 mm (Board mounted) Peak Forward Surge Current, 8.3 Single Half Sine Wave Superimposed on Rated Load Duty Cycle = 4 pulses per minute maximum Forward Voltage @ IF = 35A 300µs Square Wave Pulse, Unidirectional Only Operating and Storage Temperature Range Notes:
Value 500 1.0 70 3.5 -65 to +175
Unit W W A V °C
1. Suffix "A" denotes unidirectional, suffix "CA" denotes bi-directional device. 2. For bi-directional devices havingVR of 10 volts and under, the IR limit is doubled. 3. Type Number marking may contain a "V" or dash in place of decimal point.
DS21501 Rev. 9 - 2
1 of 3
SA5.0A - SA170A
Type Number (Suffix C = Bidirectional) (Note 1) SA5.0(C)A SA6.0(C)A SA6.5(C)A SA7.0(C)A SA7.5(C)A SA8.0(C)A SA8.5(C)A SA9.0(C)A SA10(C)A SA11(C)A SA12(C)A SA13(C)A SA14(C)A SA15(C)A SA16(C)A SA17(C)A SA18(C)A SA20(C)A SA22(C)A SA24(C)A SA26(C)A SA28(C)A SA30(C)A SA33(C)A SA36(C)A SA40(C)A SA43(C)A SA45(C)A SA48(C)A SA51(C)A SA54(C)A SA58(C)A SA60(C)A SA64(C)A SA70(C)A SA75(C)A SA78(C)A SA85(C)A SA90(C)A SA100(C)A SA110(C)A SA120(C)A SA130(C)A SA150(C)A SA160(C)A SA170(C)A
Reverse Standoff Voltage VR (V) 5.0 6.0 6.5 7.0 7.5 8.0 8.5 9.0 10 11 12 13 14 15 16 17 18 20 22 24 26 28 30 33 36 40 43 45 48 51 54 58 60 64 70 75 78 85 90 100 110 120 130 150 160 170
Breakdown Voltage VBR @ It Min (V) 6.40 6.67 7.22 7.78 8.33 8.89 9.44 10.0 11.1 12.2 13.3 14.4 15.6 16.7 17.8 18.9 20.0 22.2 24.4 26.7 28.9 31.1 33.3 36.7 40.0 44.4 47.8 50.0 53.3 56.7 60.0 64.4 66.7 71.1 77.8 83.3 86.7 94.4 100 111 122 133 144 167 178 189 Max (V) 7.00 7.37 7.98 8.60 9.21 9.83 10.4 11.1 12.3 13.5 14.7 15.9 17.2 18.5 19.7 20.9 22.1 24.5 26.9 29.5 31.9 34.4 36.8 40.6 44.2 49.1 52.8 55.3 58.9 62.7 66.3 71.2 73.7 78.6 86.0 92.1 95.8 104.0 111.0 123.0 135.0 147.0 159.0 185.0 197.0 209.0
Test Current It (mA) 10 10 10 10 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
Max. Clamping Voltage @IPP VC (V) 9.2 10.3 11.2 12.0 12.9 13.6 14.4 15.4 17.0 18.2 19.9 21.5 23.2 24.4 26.0 27.6 29.2 32.4 35.5 38.9 42.1 45.4 48.4 53.3 58.1 64.5 69.4 72.7 77.4 82.4 87.1 93.6 96.8 103.0 113.0 121.0 126.0 137.0 146.0 162.0 177.0 193.0 209.0 243.0 259.0 275.0
Max. Reverse Max. Leakage Peak Pulse Current @VR IPP (A) 54.3 48.5 44.7 41.7 38.8 36.7 34.7 32.5 29.4 27.4 25.1 23.2 21.5 20.6 19.2 18.1 17.2 15.4 14.1 12.8 11.9 11.0 10.3 9.4 8.6 7.8 7.2 6.9 6.5 6.1 5.7 5.3 5.2 4.9 4.4 4.1 4.0 3.6 3.4 3.1 2.8 2.6 2.4 2.1 1.9 1.8 IR (mA) 600 600 400 150 50 25 10 5.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0 3.0
Max. Voltage Temp. Variation of VBR mV/°C 5.0 5.0 5.0 6.0 7.0 7.0 8.0 9.0 10 11 12 13 14 16 17 19 20 23 25 28 30 31 36 39 41 46 50 52 56 61 65 70 71 76 85 91 95 103 110 123 133 146 158 184 196 208
Notes:
1. Suffix "A" denotes unidirectional, suffix "CA" denotes bi-directional device. 2. For bi-directional devices havingVR of 10 volts and under, the IR limit is doubled. 3. Type Number marking may contain a "V" or dash in place of decimal point.
DS21501 Rev. 9 - 2
2 of 3
SA5.0A - SA170A
10,000
PEAK PULSE CURRENT - % Ipp
100
t r = 10 msec
Peak Value Ipp
5,000
Unidirectional Bidirectional
Cj, CAPACITANCE (pF)
1000 500
VR = 0
Half Value I pp/2 50
100 50 VR = Rated Stand-off Voltage
tp
0
as defined by R.E.A.
10 x 1000 Wave form
10
0
1
2
3
5
10
20
50
100
20
50
t, TIME (ms) Fig. 1, Pulse Waveform
VR, RATED STANDOFF VOLTAGE (V) Fig. 2, Typical Junction Capacitance
100
PRSM, NON-REPETITIVE PEAK PULSE POWER (kW)
IMPULSE
HALF SINE WAVE
Tc = 25°C
10
1.0
SQ. WAVE
0.1 0.1
1.0
10
100
1000
10000
Tp - PULSE WIDTH (mS) Fig. 3, Peak Pulse Power Derating
100
1.0
PEAK PULSE DERATING IN % OF PEAK POWER OR CURRENT
75
Pd , AVERAGE POWER DISSIPATION (W)
0.75
50
0.5
L = 9.5 mm
25 10 X 1000 Waveform as defined by REA 0 0 25 50 75 100 125 150 175 200
0.25
0 0 25 50 75 100 125 150 175 200
TA, AMBIENT TEMPERATURE (°C) Fig. 4, Derating Curve
TL , LEAD TEMPERATURE (°C) Fig. 5, Power Derating
DS21501 Rev. 9 - 2
3 of 3
SA5.0A - SA170A
Others parts begin by sa
SA-1 SA-2 SA-3 SA-4 SA-5 SA-6 SA-7 SA-8 SA-9 SA-10 SA-11 SA-12 SA-13 SA-14 SA-15 SA-16 SA-17 SA-18 SA-19 SA-20 SA-21 SA-22 SA-23 SA-24 SA-25 SA-26 SA-27 SA-28 SA-29 SA-30
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