SMCJ18 Littelfuse Inc, SMCJ18 Datasheet - Page 3

• Manufacturer Part Number: SMCJ18
• Description: DIODE TVS 18V 1500W UNIDIR SMC
• Manufacturer: Littelfuse Inc
• Series: SMCJr

Specifications of SMCJ18

• Package / Case: DO-214AB, SMC
• Voltage - Reverse Standoff (typ): 18V
• Voltage - Breakdown: 20V
• Power (watts): 1500W
• Polarization: Unidirectional
• Mounting Type: Surface Mount
• Polarity: Unidirectional
• Channels: 1 Channel
• Clamping Voltage: 29.2 V
• Operating Voltage: 18 V
• Breakdown Voltage: 20 V
• Termination Style: SMD/SMT
• Peak Surge Current: 51.4 A
• Peak Pulse Power Dissipation: 1500 W
• Maximum Operating Temperature: + 150 C
• Minimum Operating Temperature: - 65 C
• Dimensions: 6.22 mm W x 8.13 mm L x 2.62 mm H
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS Compliant

©2009 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to http://www.Littelfuse.com/series/SMCJ.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
150
100
50
Curve
0
0
t d
t r =10μsec
T
Peak Value
I PPM
1.0
t-Time (ms)
Half Value
I PPM
2.0
( )
I PPM
10/1000μsec. Waveform
as defined by R.E.A
2
T J =25°C
Pulse Width(td) is defined
as the point where the peak
current decays to 50% of I PPM
(T
A
=25°C unless otherwise noted)
3.0
Transient Voltage Suppression Diodes
Surface Mount – 1500W > SMCJ series
4.0
Revision: November 13, 2009
Figure 2 - Pulse Derating Curve
Figure 4 - Typical Junction Capacitance
Figure 6 - Maximum Non-Repetitive Peak Forward
Surge Current Uni-Directional Only
SMCJ Series