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POWER SEMICONDUCTOR
SMB SERIES
STAND-OFF VOLTAGE - 6.8 to 200 Volts POWER DISSIPATION - 600 WATTS
SURFACE MOUNT UNIDIRECTIONAL AND BIDIRECTIONAL TRANSIENT VOLTAGE SUPPRESSORS
FEATURES
Rating to 200V VBR For surface mounted applications Reliable low cost construction utilizing molded plastic technique Plastic material has UL flammability classification 94V-O Typical IR less than 1uA above 10V Fast response time: typically less than 1.0ps for Uni-direction,less than 5.0ns for Bi-direction,form 0 Volts to BV min
SMB
SMB A DIM. A B B C C D E G F F E D G H MIN. 4.06 3.30 1.96 0.15 5.21 0.05 2.01 0.76 MAX. 4.57 3.94 2.21 0.31 5.59 0.20 2.62 1.52
MECHANICAL DATA
Case : Molded plastic Polarity : by cathode band denotes uni-directional device none cathode band denotes bi-directional device Weight : 0.003 ounces, 0.093 gram
H
All Dimensions in millimeter
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25 C ambient temperature unless otherwise specified. Single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%
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CHARACTERISTICS PEAK POWER DISSIPATION AT TA = 25 C, TP = 1ms (Note 1,2) Peak Forward Surge Current 8.3ms single half sine-wave super imposed on rated load (Note 3) (JEDEC METHOD) Steady State Power Dissipation at T L =75 C SYMBOLS VALUE UNIT
PPK
Minimum 600
WATTS
IFSM
100
AMPS.
PM(AV)
5.0
WATTS
Maximum Instantaneous forward voltage at 50A for unidirectional devices only (Note 3)
VF
SEE NOTE 4
Volts
Operating Temperature Range
TJ
-55 to +150
C
Storage Temperature Range
TSTG
-55 to +175
C REV. 1, 24-May-2000
NOTES : 1. Non-repetitive current pulse, per fig. 3 and derated above TA= 25 C per fig.1. 2. Thermal Resistance junction to Lead 3. 8.3ms single half-sine wave duty cycle= 4 pulses maximum per minute (unidirectional units only). 4. VF= 3.5V on SMB6.8 thru SMB90A devices and VF= 5.0V on SMB100 thru SMB200A devices.
RATING AND CHARACTERISTIC CURVES SMB SERIES
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PEAK FORWARD SURGE CURRENT, AMPERES
FIG.1 - PULSE DERATING CURVE
PEAK PULSE DERATING IN % OF PEAK POWER OR CURRENT
100
FIG.2 - MAXIMUM NON-REPETITIVE SURGE CURRENT
120 100 80 60 40 20 0 1 2 5 10 20 50 100
Pulse Width 8.3ms Single Half-Sine-Wave (JEDEC METHOD)
75
50
25
10 X 1000 WAVEFORM AS DEFINED BY R.E.A.
0 0 25 50 75 100 125 150 175 200
AMBIENT TEMPERATURE, C
NUMBER OF CYCLES AT 60Hz
FIG.3 - PULSE WAVEFORM
TR=10us
10000
FIG.4 - TYPICAL JUNCTION CAPACITANCE
IPPEAK PULSE CURRENT , (%)
100
Peak value (IRSM) Half value=
2
CAPACITANCE , (pF)
IRSM Pulse width (TP) is defined as that point where the peak current decays to 50% of IRSM
Uni-directional
TJ = 25 C
1000
Bi-directional
50
TJ=25 C
10 x 1000 waveform as defined by R.E.A.
100
TP
0 0 1.0 2.0 3.0 4.0
10 1 10 100 1000
T, TIME ( ms )
STAND-OFF VOLTAGE, VOLTS
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100
TA=150 C
PM(AV) STEADY STATE POWER DISSIPATION (W)
FIG.5 - PULSE RATING CURVE
FIG.6 - STEADY STATE POWER DERATIN.