Littelfuse SMBJ Uni-/Bi-Directional SMD TVS Diodes

Littelfuse SMBJ Uni-/Bi-Directional SMD TVS Diodes protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. The SMBJ diodes feature excellent clamping voltages, low incremental surge resistance, and fast response times in a low-profile package. Littelfuse SMBJ Uni/Bi-Directional SMD TVS Diodes offer protection to I/O interfaces, V_CC bus, and other vulnerable circuits used in telecom, computer, industrial, and consumer electronic applications.

Features

Excellent clamping capability
Low incremental surge resistance
Built-in strain relief
Fast response time, typically less than 1.0ps from 0V to V_BR minimum
Typical I_R less than 1μA when V_BR minimum>12V
600W (single die parts) peak pulse power capability at 10/1000μs waveform, repetition rate (duty cycles) of 0.01%
High temperature to reflow soldering guaranteed to +260°C/30 seconds
V_BR at T_J = V_BR at +25°C x [1 + αT x (T_J - 25)] (αT: temperature coefficient, typical value is 0.1%)
For surface-mounted applications to optimize board space
Low profile package
Typical failure mode is short from over-specified voltage or current
Whisker test is conducted based on JEDEC JESD201A per table 4a and 4c

IEC-61000-4-2 ESD 30kV (air), 30kV (contact)
ESD protection of data lines in accordance with IEC 61000-4-2
EFT protection of data lines in accordance with IEC 61000-4-4
UL 94V-0 flammability-rated compound
Meets MSL 1, per J-STD-020, LF maximum peak of +260°C
Matte tin lead–free plated
UL recognized to ANSI/UL 497B: Protectors for Data Communications and Fire-Alarm Circuits
Lead-free E3 means 2nd level interconnect is lead-free and the terminal finish material is tin (Sn) (IPC/JEDEC J-STD-609A.01)
Halogen-free and RoHS compliant

Applications

Telecom
Computer

Industrial
Consumer electronics

Specifications

Maximum peak pulse power dissipation
- 600W for single-die parts
- 800W For stacked die parts
5.0W maximum power dissipation on infinite heat sink at T_L=+50°C
100A maximum peak forward surge current, 8.3ms single half sine wave
3.5/5.0V maximum instantaneous forward voltage at 50A for unidirectional only
5.0V to 440.0V reverse standoff voltage range
6.40V to 543.0V breakdown voltage range

1mA or 10mA test current options
9.2V to 713.0V maximum clamping voltage range
1.1A to 65.3A maximum peak pulse current range
1µA to 800µA maximum reverse leakage range
0.041%/C to 0.112%/C maximum temperature coefficient of V_BR
-65°C to +150°C operating temperature range
Typical thermal resistance
- +20°C/W junction-to-lead
- +100°C/W junction-to-ambient