Document
SMD Type
TVS Diodes 1SMB10CA ~ 1SMB78CA
Diodes
■ Features
● Working Peak Reverse Voltage Range − 10 V to 78 V ● Standard Zener Breakdown Voltage Range − 11.7 V to 91.3 V ● Peak Power − 600 Watts @ 1 ms ● ESD Rating of Class 3 (> 16 KV) per Human Body Model ● Low Leakage < 5uA Above 10 V ● Maximum Clamp Voltage @ Peak Pulse Current ● Response Time is Typically < 1 ns
DO-214AA (SMB)
2.108 1.905
2
4.699 4.064
5.588 5.080
Unit:mm 4.12 3.92
3.937 2.30 1 3.302 2.10
2.348 2.108
2.65 2.45 5.59 5.39
Recommended Land Pattern
1.270 0.762
0.203 0.051
0.305 0.152
■ Absolute Maximum Ratings Ta = 25℃
Parameter Peak Power Dissipation (Note 1.)
@ TL = 25°C, Pulse Width = 1 ms DC Power Dissipation @ TL = 75°C (Note.2) Derate Above 75°C DC Power Dissipation Derate Above 25°C Thermal Resistance Junction to Ambient Thermal Resistance Junction to Lead Junction Temperature Storage Temperature range
Note.1: 10 X 1000us, non−repetitive Note.2: 1"square copper pad, FR−4 board
Symbol PPK PD
PD
RθJA RθJL TJ Tstg
Rating
600
3 40 0.55 4.4 226 25 150 -65 to 150
Unit W
W mW/℃
W mW/℃ ℃/W
℃
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SMD Type
Diodes
TVS Diodes
1SMB10CA ~ 1SMB78CA
■ Electrical Characteristics Ta = 25℃
Device
1SMB10CA , G* 1SMB11CA , G* 1SMB12CA , G* 1SMB13CA , G*
1SMB14CA 1SMB15CA, G* 1SMB16CA 1SMB17CA
1SMB18CA 1SMB20CA , G* 1SMB22CA , G* 1SMB24CA
1SMB26CA 1SMB28CA 1SMB30CA , G* 1SMB33CA , G*
1SMB36CA , G* 1SMB40CA , G* 1SMB43CA 1SMB45CA
1SMB48CA 1SMB51CA , G* 1SMB54CA 1SMB58CA
1SMB60CA , G* 1SMB64CA 1SMB70CA 1SMB75CA
1SMB78CA
Device Marking
KXC KZC LEC LGC
LKC LMC LPC LRC
LTC LVC LXC LZC
MEC MGC MKC MMC
MPC MRC MTC MVC
MXC MZC NEC NGC
NKC NMC NPC NRC
NTC
VRWM (Note 1)
Volts
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
IR @ VRWM
A
5.0 5.0 5.0 5.0
5.0 5.0 5.0 5.0
5.0 5.0 5.0 5.0
5.0 5.0 5.0 5.0
5.0 5.0 5.0 5.0
5.0 5.0 5.0 5.0
5.0 5.0 5.0 5.0
5.0
Breakdown Voltage
VBR (Note 2) Volts Min Nom Max
@ IT mA
11.1 11.69 12.27 12.2 12.84 13.5 13.3 14.00 14.7 14.4 15.16 15.9
15.6 16.42 17.2 16.7 17.58 18.5 17.8 18.74 19.7 18.9 19.90 20.9
20.0 21.06 22.1 22.2 23.37 24.5 24.4 25.69 27.0 26.7 28.11 29.5
28.9 30.42 31.9 31.1 32.74 34.4 33.3 35.06 36.8 36.7 38.63 40.6
40.0 42.11 44.2 44.4 46.74 49.1 47.8 50.32 52.8 50.0 52.63 55.3
53.3 56.11 58.9 56.7 59.69 62.7 60.0 63.16 66.32 64.4 67.79 71.18
66.7 70.21 73.72 71.1 74.84 78.58 77.8 81.90 85.99 83.3 91.65 92.07
86.7 91.26 95.83
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
VC @ IPP (Note 3)
VC IPP
Volts
Amps
17.0 35.3 18.2 33.0 19.9 30.2 21.5 27.9
23.2 25.8 24.4 24.0 26.0 23.1
27.6 21.7
29.2 20.5 32.4 18.5 35.5 16.9 38.9 15.4
42.1 14.2 45.4 13.2 48.4 12.4 53.3 11.3
58.1 10.3 64.5 9.3 69.4 8.6 72.2 8.3
77.4 7.7 82.4 7.3 87.1 6.9 93.6 6.4
96.8 6.2 103 5.8 113 5.3 121 4.9
126 4.7
1. A transient suppressor is normally selected according to the working peak reverse voltage (VRWM ), which should be equal to or greater than
the DC or continuous peak operating voltage level. 2. VBR measured at pulse test current IT at an ambient temperature of 25 C. 3. Surge current waveform per Figure 2 and derate per Figure 3 of the General Data − 600 Watt at the beginning of this group.
* The “G” suffix indicates Pb−Free package available.
■ Electrical Characteristics Ta = 25℃
Symbol IPP VC
VRWM IR VBR IT
Parameter Maximum Reverse Peak Pulse Current Clamping Voltage @ IPP Working Peak Reverse Voltage Maximum Reverse Leakage Current @ VRWM Breakdown Voltage @ IT Test Current
I IPP
VC VBR VRWM IIRT IIRT VRWM VBR VC V
IPP Bi−Directional TVS
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SMD Type
Diodes
TVS Diodes
1SMB10CA ~ 1SMB78CA
■ Typical Characterisitics
100
NONREPETITIVE PULSE WAVEFORM SHOWN IN FIGURE 2
tr ≤ 10 s
PULSE WIDTH (t P) IS DEFINED AS THAT POINT WHERE THE PEAK
CURRENT DECAYS TO 50% OF IPP
10
100 PEAK VALUE − I PP
VALUE (%)
PPK, PEAK POWER (kW)
PEAK PULSE DERATING IN % OF PEAK POWER OR CURRENT @ Ta= 25 C
1
0.1 0.1 s
160 140 120 100 80 60 40 20 0
0
1s
10 s
100 s
1 ms
t P, PULSE WIDTH Figure 1. Pulse Rating Curve
50
HALF VALUE −
IPP 2
0 10 ms 0
tP
1 2 34 t, TIME (ms)
Figure 2. Pulse Waveform
TYPICAL PROTECTION CIRCUIT
Zin
Vin
LOAD
VL
25 50
75 100 125
TA, AMBIENT TEMPERATURE ( C)
Figure 3. Pulse Derating Curve
150
OVERSHOOT DUE TO
V
Vin (TRANSIENT)
V INDUCTIVE EFFECTS
VL
Vin td
tD = TIME DELAY DUE TO CAPACITIVE EFFECT t
Figure 4.
Figure 5.
Vin (TRANSIENT) VL
t
DERATING FACTOR
1 0.7
0.5
0.3 0.2
0.1 0.07 0.05 0.03 0.02
0.01 0.1 0.2
PULSE WIDTH 10 ms
1 ms
100 s 10 s
0.5 1 2 5 10 20 D, DUTY CYCLE (%)
50 100
Figure 6. Typical Derating Factor for Duty Cycle
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