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Part: SA78A
Category:
Discrete
-> Diodes & Rectifiers
-> Protection
Description: 500 Watt Transient Voltage Suppressors
Company: Fairchild Semiconductor
Datasheet: Download SA78A datasheet File size : 70 kB
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Datasheet text preview:
SA5V0(C)A - SA170(C)A
Transient Voltage Suppressors SA5V0(C)A - SA170(C)A
Features · Glass passivated junction. · 500W Peak Pulse Power capability on · Excellent clamping capability. · Low incremental surge resistance. · Fast response time; typically less
than 1.0 ps from 0 volts to BV for unidirectional and 5.0 ns for bidirectional. Typical IR less than 1.0 µA above 10V. 10/1000 µs waveform.
DO-15
COLOR BAND DENOTES CATHODE ON UNIDIRECTIONAL DEVICES ONLY. NO COLOR BAND ON BIDIRECTIONAL DEVICES.
·
DEVICES FOR BIPOLAR APPLICATIONS
- Bidirectional types use CA suffix. - Electrical Characteristics apply in both directions.
500 Watt Transient Voltage Suppressors
Absolute Maximum Ratings*
Symbol
PPPM IPPM PD IFSM Tstg TJ
TA = 25°C unless otherwise noted
Parameter
Peak Pulse Power Dissipation on 10/1000 µs waveform Peak Pulse Current on 10/1000 µs waveform Power Dissipation .375 " lead length @ TA = 75°C Non-repetitive Peak Forward Surge Current superimposed on rated load (JEDEC method) Storage Temperature Range Operating Junction Temperature
Value
500 see table 1.0
(Note 1)
Units
W A W A °C °C
70 -65 to +175 + 175
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
Note 1: Measured on 8.3 ms single half-sine wave or equivalent square wave; Duty cycle = 4 pulses per minute maximum.
2 0 0 2 Fairchild Semiconductor Corporation
SA5V0(C)A - SA170(C)A, Rev. D
SA5V0(C)A - SA170(C)A
Transient Voltage Suppressors
(continued)
Electrical Characteristics
Uni-directional Bi-directional (C) Device SA5V0(C)A SA6V0(C)A SA6V5(C)A SA7V0(C)A SA7V5(C)A SA8V0(C)A SA8V5(C)A SA9V0(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 Stand-off Voltage VRWM (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
TA = 25°C unless otherwise noted
Breakdown Voltage VBR (V) min 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 94.4 100.0 111.0 122.0 133.0 144.0 167.0 178.0 189.0 max 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
Clamping Voltage Peak Pulse @IPPM Current VC (V) IPPM (A) 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 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 2.7 2.4 2.1 1.9 1.8
Reverse Leakage VRWM IR (uA)* 600 600 400 150 50 25 10 5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
* For bidirectional parts with VRWM<10V, the IR max limit is doubled.
SA5V0(C)A - SA170(C)A, Rev. D
SA5V0(C)A - SA170(C)A
Transient Voltage Suppressors
(continued)
Typical Characteristics
100
100
TA = 25 º C
75 Pulse Power [%]
Pulse Power [kW]
10
50
1
25
0.1 0.0001
0
0.001
Figure 1. Peak Pulse Power Rating Curve
0.01 0.1 Pulse Width [ms]
1
10
0
25
Figure 2. Pulse Derating Curve
50 75 100 125 150 Ambient Temperature [ºC]
175
200
150
tf = 10µsec µ
Total Capacitance, CT [pF]
Peak Pulse Current [%]
100
Peak Value Ippm
T A = 25º C Pulse Width (td) is Defined as the Point Where the Peak Current Decays to 50% of Ipp
6000 4000 2000 1000 500 200 100 50 20 4 10 1
Measured at Stand-Off Voltage (V mw)
T A = 25º C f = 1.0 MHz Visg = 50m Vp-p Measured at Zero Bias
Half Value-Ipp 2
50
10/1000µs ec Waveform µ as Defined by R.E.A.
td
e-kt
0
0
1
Figure 3. Pulse Waveform
2 Time [ms]
3
Figure 4. Total Capacitance - Unidirectional
5 10 50 Reverse Voltage, VR [V]
100
200
Peak Forward Surge Current, IFSM [A]
1.6 1.4 Power Dissipation [W] 1.2 1 0.8 0.6 0.4 0.2 0 0 25 50 75 100 125 150 Lead Temperature [ºC] 175 200
100
T A = T Amax 8.3ms Single Half Sine-Wave JEDEC Method
50
20
10
1
2
Figure 5. Steady State Power Derating Curve
5 10 20 Number of Cycles at 60Hz
50
100
Figure 6. Non-Repetitive Surge Current
SA5V0(C)A - SA170(C)A, Rev. D
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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