Silicon Avalanche Diodes
1
www.littelfuse.com
FEATURES
•For surface mounted applications in order to optimize
board space
•Low profile package
•Built-in strain relief
•Glass passivated junction
•Low inductance
•Excellent clamping capability
•Repetition Rate (duty cycle): 0.01%
•Fast response time: typically less than 1.0ps from 0 Volts to
BV for unidirectional types
•Typical IR less than 1 mA above 10V
•High Temperature soldering: 250˚C/10 seconds at terminals
•Plastic packages has Underwriters Laboratory
Flammability 94V-O
MECHANICAL CHARACTERISTICS
•Case:JEDEC DO214AA. Molded plastic over glass passivated
junction
•Terminal: Solder plated, solderable per MIL-STD-750
Method 2026
•Polarity. Color band denotes positive end(cathode) except
Bidirectional
•Standard Packaging: 12mm tape(EIA STF RS-481)
•Weight: 0.003 ounce, 0.093 gram
DEVICES FOR BIPOLAR APPLICATIONS
For Bidirectional use C or CA Suffix for types SMBJ5.0 thru types
SMBJ110(e.g. SMBJ5.OC, SMBJ170CA)
Electrical characteristics apply in both directions
SMBJ Series
600W Surface Mount Transient Voltage Supressors
®
MAXIMUM RATINGS @25˚C AMBIENT TEMPERATURE
AND CHARACTERISTICS (unless otherwise noted)
PARAMETER
Peak pulse power Dissipation on
10/1000µs waveform
(note 1,2, FIG.1)
Peak pulse current of on 10\1000µs
waveform (note 1, FIG.3)
Peak forward Surge Current, 8.3ms
Single Half SIne Wave Superimposed
on Rated Load, (JEDEC Method)
(note 2.3)
Operating junction and Storage
Temperature Range
VALUE
Min
600
SEE TABLE 1
100
-55 to +150
-55 to +150
UNIT
Watts
Amps
Amps
°C
Note 1. Non-repetitive current pulse, per Fig.3 and derated above
TA= 25˚C per Fig.2
Note 2. Mounted on 5.0mm2(0.03mm thick) Copper Pads to each
terminal
Note 3. 8.3 ms single half sine-wave, or equivalent square wave,
Duty cycle= 4 pulses per minute
SYMBOL
PPPM
IPPM
IPSM
Tj, TsTG
Silicon Avalanche Diodes
2www.littelfuse.com
Part
Number
(Uni)
Part
Number
(Bi)
Device Marking
Code
Breakdown
Voltage
VBR (Volts) @ IT
Maximum
Reverse
Leakage
IR@ VR
(µA)
Maximum
Clamping
Voltage
VC@ IPP
(Volts)
Maximum
Peak Pulse
Current
IPP
(A)
SMBJ Series
ELECTRICAL SPECIFICATION @ Tamb 25°C
600W Surface Mount Transient Voltage Supressors
®
SMBJ5.0A SMBJ5.0CA KE AE 5.0 6.40 7.00 10 9.2 65.3 800
SMBJ6.0A SMBJ6.0CA KG AG 6.0 6.67 7.37 10 10.3 58.3 800
SMBJ6.5A SMBJ6.5CA KK AK 6.5 7.22 7.98 10 11.2 53.6 500
SMBJ7.0A SMBJ7.0CA KM AM 7.0 7.78 8.60 10 12.0 50.0 200
SMBJ7.5A SMBJ7.5CA KP AP 7.5 8.33 9.21 1 12.9 46.6 100
SMBJ8.0A SMBJ8.0CA KR AR 8.0 8.89 9.83 1 13.6 44.2 50
SMBJ8.5A SMBJ8.5CA KT AT 8.5 9.44 10.40 1 14.4 41.7 20
SMBJ9.0A SMBJ9.0CA KV AV 9.0 10.00 11.10 1 15.4 39.0 10
SMBJ10A SMBJ10CA KX AX 10.0 11.10 12.30 1 17.0 35.3 5
SMBJ11A SMBJ11CA KZ AZ 11.0 12.20 13.50 1 18.2 33.0 5
SMBJ12A SMBJ12CA LE BE 12.0 13.30 14.70 1 19.9 30.2 5
SMBJ13A SMBJ13CA LG BG 13.0 14.40 15.90 1 21.5 28.0 5
SMBJ14A SMBJ14CA LK BK 14.0 15.60 17.20 1 23.2 25.9 5
SMBJ15A SMBJ15CA LM BM 15.0 16.70 18.50 1 24.4 24.6 5
SMBJ16A SMBJ16CA LP BP 16.0 17.80 19.70 1 26.0 23.1 5
SMBJ17A SMBJ17CA LR BR 17.0 18.90 20.90 1 27.6 21.8 5
SMBJ18A SMBJ18CA LT BT 18.0 20.00 22.10 1 29.2 20.6 5
SMBJ20A SMBJ20CA LV BV 20.0 22.20 24.50 1 32.4 18.6 5
SMBJ22A SMBJ22CA LX BX 22.0 24.40 26.90 1 35.5 16.9 5
SMBJ24A SMBJ24CA LZ BZ 24.0 26.70 29.50 1 38.9 15.5 5
SMBJ26A SMBJ26CA ME CE 26.0 28.90 31.90 1 42.1 14.3 5
SMBJ28A SMBJ28CA MG CG 28.0 31.10 34.40 1 45.4 13.3 5
SMBJ30A SMBJ30CA MK CK 30.0 33.30 36.80 1 48.4 12.4 5
SMBJ33A SMBJ33CA MM CM 33.0 36.70 40.60 1 53.3 11.3 5
SMBJ36A SMBJ36CA MP CP 36.0 40.00 44.20 1 58.1 10.4 5
SMBJ40A SMBJ40CA MR CR 40.0 44.40 49.10 1 64.5 9.3 5
SMBJ43A SMBJ43CA MT CT 43.0 47.80 52.80 1 69.4 8.7 5
SMBJ45A SMBJ45CA MV CV 45.0 50.00 55.30 1 72.7 8.3 5
SMBJ48A SMBJ48CA MX CX 48.0 53.30 58.90 1 77.4 7.8 5
SMBJ51A SMBJ51CA MZ CZ 51.0 56.70 62.70 1 82.4 7.3 5
SMBJ54A SMBJ54CA NE DE 54.0 60.00 66.30 1 87.1 6.9 5
SMBJ58A SMBJ58CA NG DG 58.0 64.40 71.20 1 93.6 6.5 5
SMBJ60A SMBJ60CA NK DK 60.0 66.70 73.70 1 96.8 6.2 5
SMBJ64A SMBJ64CA NM DM 64.0 71.10 78.60 1 103.0 5.9 5
SMBJ70A SMBJ70CA NP DP 70.0 77.80 86.00 1 113.0 5.3 5
SMBJ75A SMBJ75CA NR DR 75.0 83.30 92.10 1 121.0 5.0 5
SMBJ78A SMBJ78CA NT DT 78.0 86.70 95.80 1 126.0 4.8 5
SMBJ85A SMBJ85CA NV DV 85.0 94.40 104.00 1 137.0 4.4 5
SMBJ90A SMBJ90CA NX DX 90.0 100.00 111.00 1 146.0 4.1 5
SMBJ100A SMBJ100CA NZ DZ 100.0 111.00 123.00 1 162.0 3.7 5
SMBJ110A SMBJ110CA PE EE 110.0 122.00 135.00 1 177.0 3.4 5
SMBJ120A SMBJ120CA PG EG 120.0 133.00 147.00 1 193.0 3.1 5
SMBJ130A SMBJ130CA PK EK 130.0 144.00 159.00 1 209.0 2.9 5
SMBJ150A SMBJ150CA PM EM 150.0 167.00 185.00 1 243.0 2.5 5
SMBJ160A SMBJ160CA PP EP 160.0 178.00 197.00 1 259.0 2.3 5
SMBJ170A SMBJ170CA PR ER 170.0 189.00 209.00 1 275.0 2.2 5
SMBJ180A SMBJ180CA PT ET 180.0 201.00 222.00 1 292.0 2.1 5
SMBJ200A SMBJ200CA PV EV 200.0 224.00 247.00 1 324.0 1.9 5
SMBJ220A SMBJ220CA PX EX 220.0 246.00 272.00 1 356.0 1.7 5
SMBJ250A SMBJ250CA PZ EZ 250.0 279.00 309.00 1 405.0 1.5 5
SMBJ300A SMBJ300CA QE FE 300.0 335.00 371.00 1 486.0 1.3 5
SMBJ350A SMBJ350CA QG FG 350.0 391.00 432.00 1 567.0 1.1 5
SMBJ400A SMBJ400CA QK FK 400.0 447.00 494.00 1 648.0 0.9 5
SMBJ440A SMBJ440CA QM FM 440.0 492.00 543.00 1 713.0 0.9 5
Reverse
Stand off
Voltage
VR
(Volts)
UNI BI MIN MAX
For bidirectional type having Vrwm of 10 volts and less, the IR limit is double.
For parts without A , the VBR is + 10%
Test
Current
IT(mA)
3
www.littelfuse.com
Silicon Avalanche Diodes
SMBJ Series
600W Surface Mount Transient Voltage Supressors
®
Ratings and Characteristic Curves TA=25˚C unless otherwise noted
Fig. 1 Peak Pulse Power Rating
Fig. 3 Pulse Waveform
Fig. 5- Typ. Transient Thermal Impedance
Fig. 6- Maximum Non-Repetitive Peak
Fig. 4- Typical Junction Capacitance
Fig. 2 Pulse Derating Curve
td- Pulse Width (sec.) TA- Ambient Temperature (˚C)
PPPM- Peak Pulse Power (KW)
IPPM- Peak Pulse Current, % I RSM
Transient Thermal Impedance
(˚C/W)
IPSM-Peak Forward Surge Current (A) CJ-Junction Capacitance (pF) Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage, %
0.1µs 1.0µs10µs 100µs 1.0ms 10ms
0.1
1
10
100
0.2x0.2"(5.0x5.0mm)
Copper Pad Areas
0
0
0
0.1
1.0
10
100
50
100
150
1.0 2.0 3.0 4.0
0.001 0.01 0.1 110 100 1000 1
10
100
200
6000
1000
100
10
1.0 10 100 200
10 100
0
25
25
50
50
75
75
100
100
125 150 175 200
tp- Pulse Duration(sec) Number of Cycles at 60Hz
VWM-Reverse Stand-Off Voltage (V)
Forward Surge Current
tr=10µsec
Peak Value
IPPM
Half Value IPPM
2
TJ=25˚C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of IPPM
10/1000µsec. Waveform
as defined by R.E.A
td
8.3 Single Half Sine-Wave
(JEDEC Method)
Undirectional Only
Measured at
Zero Bias
Uni-Directional
Bi-Directional
TJ=25˚C
f=1.0MHZ
Vsig=50mVp-p
VR, Measured at
Stand-Off
Voltage, VWM
600W Surface Mount Transient Voltage Supressors
Silicon Avalanche Diodes
4www.littelfuse.com
SMBJ Series
Package Outline Dimensions and Pad Layout
DO-214AA (SMB J-Bend)
0.086 (2.20)
0.077 (1.95)
0.180 (4.57)
0.160 (4.06)
0.155 (3.94)
0.130 (3.30)
0.012 (0.305)
0.006 (0.152)
0.060 (1.52)
0.030 (0.76)
0.220 (5.59)
0.205 (5.21)
0.096 (2.44)
0.084 (2.13)
0.008 (0.203) MAX
Dimensions in inches and (millimeters)
Cathode Band
2.16 2.74 2.16
2.26
Solder Pads
All dimensions in mm
®
