Datasheet
October 2010 Doc ID 5616 Rev 10 1/10
10
SMBJ
Transil™
Features
■ Peak pulse power:
– 600 W (10/1000 μs)
– 4 kW (8/20 µs)
■ Stand off voltage range: from 5 V to 188 V
■ Unidirectional and bidirectional types
■ Low leakage current:
– 0.2 µA at 25 °C
– 1 µA at 85 °C
■ Operating T
jmax
: 150 °C
■ High power capability at T
jmax
:
– 515 W (10/1000 µs)
■ JEDEC registered package outline
Complies with the following standards
■ IEC 61000-4-2 level 4:
– 15 kV (air discharge)
– 8 kV (contact discharge)
■ IEC 61000-4-5
■ MIL STD 883G, method 3015-7 Class 3B:
– 25 kV HBM (human body model)
■ Resin meets UL 94, V0 
■ MIL-STD-750, method 2026 soldererability
■ EIA STD RS-481 and IEC 60286-3 packing
■ IPC 7531 footprint
Description
The SMBJ Transil series has been designed to 
protect sensitive equipment against electrostatic 
discharges according to IEC 61000-4-2, and 
MIL STD 883, method 3015, and electrical over 
stress according to IEC 61000-4-4 and 5. These 
devices are more generally used against surges 
below 600 W (10/1000 μs).
Planar technology makes these devices suitable 
for high-end equipment and SMPS where low 
leakage current and high junction temperature are 
required to provide reliability and stability over 
time.
SMBJ are packaged in SMB (SMB footprint in 
accordance with IPC 7531 standard).
TM: Transil is a trademark of STMicroelectronics
K
A
Unidirectional Bidirectional
SMB
(JEDEC DO-214AA)
www.st.com










