Silicon Avalanche Diodes
278 www.littelfuse.com
1500W Surface Mount Transient Voltage Supressors
1.5SMC Series
FEATURES
RoHS compliant
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):0.05%
Fast response time: typically less than 1.0ps from 0 Volts to
BV min.
Typical IR less than 1µA above 10V
High temperature soldering: 250˚C/10 seconds at terminals
DEVICES FOR BIPOLAR APPLICATION
For Bidirectional use Suffix CA for types 1.5SMC6.8CA thru types
1.5SMC550CA
Electrical characteristics apply in both directions
MAXIMUM RATINGS AND CHARACTERISTICS
@25˚C AMBIENT TEMPERATURE (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)(Note3)
Operating junction and Storage
Temperature Range
VALUE
Min
1500
See Table 1
200
-55 to +150
UNIT
Watts
Amps
Amps
°C
Notes:
1. Non-repetitive current pulse, per Fig.3 and derated above
TA= 25˚C per Fig.2
2. Mounted on 8.0mm2 Copper Pads to each terminal
3. 8.3ms single half sine-wave, or equivalent square wave,
Duty cycle = 4 pulses per minutes maximum
SYMBOL
PPPM
IPPM
IFSM
Tj, TsTG
Mechanical Specifications:
Weight: 0.007 ounce, 0.21 gram
Case: JEDEC DO214AB. Molded plastic over
glass passivated junction
Mounting Position: Any
Polarity: Color band denoted positive end
(cathode) except Bidirectional
Terminal: Solder plated, solderable per MIL-STD-
750, Method 2026
Standard Packaging: 16mm tape (EIA STD RS-481)
1.5SMC CA
Voltage
Bi-Directional
5% Voltage To lerance
T = Tape and reeled (3000 pcs)
ORDERING INFORMATION
Agency Approvals: Recognized under the Components Program
of Underwriters Laboratories.
Agency File Number: E128667
RoHS
Silicon Avalanche Diodes
279
www.littelfuse.com
6
SILICON DIODE
ARRAYS
1500W Surface Mount Transient Voltage Supressors
1.5SMC Series
RoHS
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)
ELECTRICAL SPECIFICATION @ Tamb 25°C
1.5SMC6.8A 1.5SMC6.8CA 6V8A 6V8C 5.80 6.45 7.14 10 10.5 144.8 1000
1.5SMC7.5A 1.5SMC7.5CA 7V5A 7V5C 6.40 7.13 7.88 10 11.3 134.5 500
1.5SMC8.2A 1.5SMC8.2CA 8V2A 8V2C 7.02 7.79 8.61 10 12.1 125.6 200
1.5SMC9.1A 1.5SMC9.1CA 9V1A 9V1C 7.78 8.65 9.50 1 13.4 113.4 50
1.5SMC10A 1.5SMC10CA 10A 10C 8.55 9.50 10.50 1 14.5 104.8 10
1.5SMC11A 1.5SMC11CA 11A 11C 9.40 10.50 11.60 1 15.6 97.4 5
1.5SMC12A 1.5SMC12CA 12A 12C 10.20 11.40 12.60 1 16.7 91.0 5
1.5SMC13A 1.5SMC13CA 13A 13C 11.10 12.40 13.70 1 18.2 83.5 5
1.5SMC15A 1.5SMC15CA 15A 15C 12.80 14.30 15.80 1 21.2 71.7 5
1.5SMC16A 1.5SMC16CA 16A 16C 13.60 15.20 16.80 1 22.5 67.6 5
1.5SMC18A 1.5SMC18CA 18A 18C 15.30 17.10 18.90 1 25.2 60.3 5
1.5SMC20A 1.5SMC20CA 20A 20C 17.10 19.00 21.00 1 27.7 54.9 5
1.5SMC22A 1.5SMC22CA 22A 22C 18.80 20.90 23.10 1 30.6 49.7 5
1.5SMC24A 1.5SMC24CA 24A 24C 20.50 22.80 25.20 1 33.2 45.8 5
1.5SMC27A 1.5SMC27CA 27A 27C 23.10 25.70 28.40 1 37.5 40.5 5
1.5SMC30A 1.5SMC30CA 30A 30C 25.60 28.50 31.50 1 41.4 36.7 5
1.5SMC33A 1.5SMC33CA 33A 33C 28.20 31.40 34.70 1 45.7 33.3 5
1.5SMC36A 1.5SMC36CA 36A 36C 30.80 34.20 37.80 1 49.9 30.5 5
1.5SMC39A 1.5SMC39CA 39A 39C 33.30 37.10 41.00 1 53.9 28.2 5
1.5SMC43A 1.5SMC43CA 43A 43C 36.80 40.90 45.20 1 59.3 25.6 5
1.5SMC47A 1.5SMC47CA 47A 47C 40.20 44.70 49.40 1 64.8 23.5 5
1.5SMC51A 1.5SMC51CA 51A 51C 43.60 48.50 53.60 1 70.1 21.7 5
1.5SMC56A 1.5SMC56CA 56A 56C 47.80 53.20 58.80 1 77.0 19.7 5
1.5SMC62A 1.5SMC62CA 62A 62C 53.00 58.90 65.10 1 85.0 17.9 5
1.5SMC68A 1.5SMC68CA 68A 68C 58.10 64.60 71.40 1 92.0 16.5 5
1.5SMC75A 1.5SMC75CA 75A 75C 64.10 71.30 78.80 1 103.0 14.8 5
1.5SMC82A 1.5SMC82CA 82A 82C 70.10 77.90 86.10 1 113.0 13.5 5
1.5SMC91A 1.5SMC91CA 91A 91C 77.80 86.50 95.50 1 125.0 12.2 5
1.5SMC100A 1.5SMC100CA 68A 100C 85.50 95.00 105.00 1 137.0 11.1 5
1.5SMC110A 1.5SMC110CA 75A 110C 94.00 105.00 116.00 1 152.0 10.0 5
1.5SMC120A 1.5SMC120CA 120A 120C 102.00 114.00 126.00 1 165.0 9.2 5
1.5SMC130A 1.5SMC130CA 130A 130C 111.00 124.00 137.00 1 179.0 8.5 5
1.5SMC150A 1.5SMC150CA 150A 150C 128.00 143.00 158.00 1 207.0 7.3 5
1.5SMC160A 1.5SMC160CA 160A 160C 136.00 152.00 168.00 1 219.0 6.9 5
1.5SMC170A 1.5SMC170CA 170A 170C 145.00 162.00 179.00 1 234.0 6.5 5
1.5SMC180A 1.5SMC180CA 180A 180C 154.00 171.00 189.00 1 246.0 6.2 5
1.5SMC200A 1.5SMC200CA 200A 200C 171.00 190.00 210.00 1 274.0 5.5 5
1.5SMC220A 1.5SMC220CA 220A 220C 185.00 209.00 231.00 1 328.0 4.6 5
1.5SMC250A 1.5SMC250CA 250A 250C 214.00 237.00 263.00 1 344.0 4.4 5
1.5SMC300A 1.5SMC300CA 300A 300C 256.00 285.00 315.00 1 414.0 3.7 5
1.5SMC350A 1.5SMC350CA 350A 350C 300.00 332.00 368.00 1 482.0 3.2 5
1.5SMC400A 1.5SMC400CA 400A 400C 342.00 380.00 420.00 1 548.0 2.8 5
1.5SMC440A 1.5SMC440CA 440A 440C 376.00 418.00 462.00 1 602.0 2.5 5
1.5SMC480A 1.5SMC480CA 480A 480C 408.00 456.00 504.00 1 658.0 2.3 5
1.5SMC510A 1.5SMC510CA 510A 510C 434.00 485.00 535.00 1 698.0 2.1 5
1.5SMC530A 1.5SMC530CA 530A 530C 477.00 503.50 556.50 1 725.0 2.1 5
1.5SMC540A 1.5SMC540CA 540A 540C 459.00 513.00 567.00 1 740.0 2.0 5
1.5SMC550A 1.5SMC550CA 550A 550C 495.00 522.50 577.50 1 760.0 2.0 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.
The avaliable parts are "A" type only, the parts without A (VBR is ± 10%) is not avaliable.
Test
Current
IT(mA)
Silicon Avalanche Diodes
280 www.littelfuse.com
1500W Surface Mount Transient Voltage Supressors
Fig. 1 Peak Pulse Power Rating
Fig. 3 Pulse Waveform
Fig. 5- Typ. Transient Thermal Impedance Fig. 6- Maximum Non-Repetitive
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)
Peak Forward Surge Current (A) CJ-Junction Capacitance (pF) Peak Pulse Power (PPP) or Current (IPP)
Derating in Percentage, %
0.1µs 1.0µs 10µs 100µs 1.0ms 10ms
0.1
1
10
100
0.31x0.31"(8.0x8.0mm)
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
20000
10000
1000
100
10
1.0 10 100 200
10 100
025
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
Uni-Directional Use Only
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)
TJ=TJ max.
Measured at
Zero Bias
Uni-Directional
Bi-Directional
TJ=25˚C
f=1.0MHZ
Vsig=50mVp-p
VR, Measured at
Stand-Off
Voltage, VWM
Ratings and Characteristic Curves TA=25˚C unless otherwise noted
1.5SMC Series
RoHS
Silicon Avalanche Diodes
281
www.littelfuse.com
6
SILICON DIODE
ARRAYS
1500W Surface Mount Transient Voltage Supressors
1.5SMC Series
RoHS
DO-214AB (SMC J-Bend)
0.280 (7.11)
0.260(6.60)
0.2.45 (6.22)
0.220 (5.59)
0.125 (3.20)
0.114 (2.90)
0.012 (0.305)
0.006 (0.152)
0.060 (1.52)
0.030 (0.76) 0.320 (8.13)
0.305 (7.75)
0.103 (2.62)
0.079 (2.06)
0.008 (0.203) MAX
Dimensions in inches and (millimeters)
Cathode Band
Package Outline Dimensions and Pad Layouts