SMBJ18CA Littelfuse Inc, SMBJ18CA Datasheet - Page 3

• Manufacturer Part Number: SMBJ18CA
• Description: DIODE TVS 18V 600W BI-DIR SMB
• Manufacturer: Littelfuse Inc
• Series: SMBJr

Specifications of SMBJ18CA

• Package / Case: DO-214AA, SMB
• Voltage - Reverse Standoff (typ): 18V
• Voltage - Breakdown: 20V
• Power (watts): 600W
• Polarization: Bidirectional
• Mounting Type: Surface Mount
• Polarity: Bidirectional
• Channels: 1 Channel
• Clamping Voltage: 29.2 V
• Operating Voltage: 18 V
• Breakdown Voltage: 20 V
• Termination Style: SMD/SMT
• Peak Surge Current: 20.6 A
• Peak Pulse Power Dissipation: 600 W
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 65 C
• Dimensions: 3.94 mm W x 5.59 mm L x 2.44 mm H
• Number Of Elements: 1
• Package Type: SMB
• Operating Temperature Classification: Military
• Reverse Breakdown Voltage: 20V
• Reverse Stand-off Voltage: 18V
• Leakage Current (max): 1uA
• Peak Pulse Current: 20.6A
• Test Current (it): 1mA
• Operating Temp Range: -65C to 150C
• Mounting: Surface Mount
• Pin Count: 2
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free by exemption / RoHS Compliant
• Other names: SMBJ18CACCTR; SMBJ18CACCTR; SMBJ18CALFTR

©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to http://www.Littelfuse.com/series/SMBJ.html for current information.
Ratings and Characteristic Curves
Figure 1 - Peak Pulse Power Rating
Figure 3 - Pulse Waveform
Figure 5 - Steady State Power Dissipation Derating Curve
100
0.1
150
100
10
50
1
6
5
4
3
2
1
0
0
0.000001
0
0
0.2x0.2" (5.0x5.0mm)
Copper Pad Area
t d
25
t r =10μsec
T
Peak Value
I PPM
1.0
A
50
- Ambient Temperature (ºC)
0.00001
t
d
-Pulse Width (sec.)
t-Time (ms)
Half Value
I PPM
75
2.0
( )
I PPM
100
2
10/1000μsec. Waveform
as defined by R.E.A
T J =25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of I PPM
0.0001
(T
A
=25°C unless otherwise noted)
125
3.0
Transient Voltage Suppression Diodes
Surface Mount – 600W > SMBJ series
150
0.001
175
4.0
Revision: January 09, 2009
25
Figure 6 - Maximum Non-Repetitive Peak Forward
Figure 2 - Pulse Derating Curve
Figure 4 - Typical Junction Capacitance
10000
1000
100
10
Surge Current Uni-Directional Only
120
100
100
80
60
40
20
1
80
60
40
20
0
1.0
0
1
0
Tj=25C
f=1.0MHz
Vsig=50mVp-p
Uni-directional @V
V
BR
25
- Reverse Breakdown Voltage (V)
T
Number of Cycles at 60 Hz
A
- Ambient Temperature (ºC)
10.0
50
R
Bi-directional @V
75
Bi-directional V=0V
10
100
100.0
R
Uni-directional V=0V
125
150
1000.0
100
175
SMBJ Series