Littelfuse SMCJ Series User Manual
Smcj series, Transient voltage suppression diodes, Surface mount – 1500w > smcj series
Transient Voltage Suppression Diodes
© 2014 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 01/24/14
Surface Mount – 1500W > SMCJ series
TVS devices are ideal for the protection of I/O Interfaces,
V
CC
bus and other vulnerable circuits used in Telecom,
Computer, Industrial and Consumer electronic applications.
Applications
Features
The SMCJ series is designed specifically to protect
sensitive electronic equipment from voltage transients
induced by lightning and other transient voltage events.
Description
Parameter
Symbol
Value
Unit
Peak Pulse Power Dissipation at
T
A
=25ºC by 10/1000µs Waveform
(Fig.2)(Note 1), (Note 2)
P
PPM
1500
W
Power Dissipation on Infinite Heat
Sink at T
A
=50°C
P
M(AV)
6.5
W
Peak Forward Surge Current, 8.3ms
Single Half Sine Wave (Note 3)
I
FSM
200
A
Maximum Instantaneous Forward
Voltage at 100A for Unidirectional
Only (Note 4)
V
F
3.5/5.0
V
Operating Junction and Storage
Temperature Range
T
J
, T
STG
-55 to 150
°C
Typical Thermal Resistance Junction
to Lead
R
uJL
15
°C/W
Typical Thermal Resistance Junction
to Ambient
R
uJA
75
°C/W
Notes:
1. Non-repetitive current pulse , per Fig. 4 and derated above T
A
= 25°C per Fig. 3.
2. Mounted on copper pad area of 0.31x0.31” (8.0 × 8.0mm) to each terminal.
3. Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional
device only, duty cycle=4 per minute maximum.
4. V
F
<3.5V for V
BR
__
<
200V and V
F
<5.0V for V
BR
__
>
201V.
Maximum Ratings and Thermal Characteristics
(T
A
=25°C unless otherwise noted)
Agency Approvals
AGENCY
AGENCY FILE NUMBER
E230531
• Excellent clamping
capability
• Low incremental surge
resistance
• Typical I
R
less than 1µA
above 12V
• For surface mounted
applications to optimize
board space
• Low profile package
• Built-in strain relief
• 1500W peak pulse power
capability at 10/1000μs
waveform, repetition rate
(duty cycles):0.01%
• Typical failure mode is
short from over-specified
voltage or current
• Whisker test is conducted
based on JEDEC
JESD201A per its table 4a
and 4c
• IEC-61000-4-2 ESD
15kV(Air), 8kV (Contact)
• ESD protection of data
lines in accordance with
IEC 61000-4-2 (IEC801-2)
• EFT protection of data
lines in accordance with
IEC 61000-4-4 (IEC801-4)
• Fast response time:
typically less than 1.0ps
from 0V to BV min
•
V
BR
@T
J
= V
BR
@25°C × (1+
α
T
x (T
J
- 25))
(αT: Temperature Coefficient)
• Glass passivated chip
junction
• High temperature
soldering guaranteed:
260°C/40 seconds at
terminals
• Plastic package has
underwriters laboratory
flammability 94V-O
• Meet MSL level1, per
J-STD-020, LF maximum
peak of 260°C
• Matte tin lead–free plated
• Halogen free and RoHS
compliant
RoHS
SMCJ Series
Uni-directional
Bi-directional
Functional Diagram
Bi-directional
Uni-directional
Cathode
Anode
Additional Information