Datasheet SMAJ (Littelfuse)

TVS Diodes
Surface Mount – 400W > SMAJ series SMAJ Series
RoHS
Pb
e3 Description
The SMAJ series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. Uni-directional Bi-directional
Features
• 400W Peak pulse power • Fast response time: capability at 10/1000µs typically less than 1.0ps waveform, repetition rate from 0 Volts to V min BR (duty cycle): 0.01% • Glass passivated junction • Excellent clamping • Low inductance
Agency Approvals
capability • High temperature • Typical I less than 1μA R to reflow soldering
Agency Agency File Number
when V min>12V BR guaranteed: 260°C/30sec • For surface mounted E230531 • V @ T = V @25°C applications to optimize BR J BR x (1+αT x (T - 25)) board space J (αT:Temperature
Maximum Ratings and Thermal Characteristics
• Low profile package Coefficient, typical value
(T =25OC unless otherwise noted)
• Typical failure mode is is 0.1%)
A
short from over-specified • Plastic package is
Parameter Symbol Value Unit
voltage or current flammability rated V-0 per Peak Pulse Power Dissipation at TA=25° by • Whisker test is conducted Underwriters Laboratories 10/1000us Waveform(Fig.2)(Note 1), (Note 2) P 400 W PPM based on JEDEC • Meet MSL level1, per -Single Die Parts JESD201A per its table 4a J-STD-020, LF maximun Peak Pulse Power Dissipation at TA=25° by 10/1000us Waveform(Fig.2)(Note 1), (Note P 600 W and 4c peak of 260°C PPM 2)-Stacked Die Parts(Note 5) • IEC-61000-4-2 ESD • Matte tin lead–free Plated Power Dissipation on Infinite Heat Sink at 30kV(Air), 30kV (Contact) T =50 3.3 W • Halogen free and RoHS OC PD L • ESD protection of data Peak Forward Surge Current, 8.3ms Single Half compliant Sine Wave (Note 3) I 60 A FSM lines in accordance with • Pb-free E3 means 2nd Maximum Instantaneous Forward Voltage at IEC 61000-4-2 level interconnect is 25A for Unidirectional Only (Note 4) V 3.5/5.0 V F • EFT protection of data Pb-free and the terminal Operating Temperature Range T -65 to 150 °C lines in accordance with J finish material is tin(Sn) Storage Temperature Range T -65 to 175 °C IEC 61000-4-4 (IPC/JEDEC J-STD- STG Typical Thermal Resistance Junction to Lead R 30 °C/W • Built-in strain relief 609A.01) θJL Typical Thermal Resistance Junction to Ambient R 120 °C/W θJA
Notes: Applications 1.
Non-repetitive current pulse, per Fig.4 and derated above T (initial) =25ºC per Fig. 3. J
2.
Mounted on 5.0x5.0mm copper pad to each terminal.
3.
Measured on 8.3ms single half sine wave or equivalent square wave for unidirectional device only. TVS devices are ideal for the protection of I/O Interfaces,
4.
VF < 3.5V for single die parts and VF< 5.0V for stacked-die parts. V bus and other vulnerable circuits used in Telecom,
5.
For stacked die component details, please refer to part numbers labeled by * in Electrical Characteristics. CC Computer, Industrial and Consumer electronic applications.
Functional Diagram Additional Infomarion Bi-directional Datasheet Resources Samples Cathode Anode Uni-directional
© 2020 Littelfuse, Inc. Specifications are subject to change without notice. Revised: BA.10/21/20