SMF33CA - SMF Series

Series: SMF
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The SMF series is designed specifically to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. SMF package is 50% smaller in footprint when compare to SMA package and deliverying one of the low height profiles (1.1mm) in the industry.

Features:

  • 200W peak pulsepower capability at 10/1000µs waveform, repetition rate (duty cycle): 0.01%
  • Compatible with industrial standard package SOD-123FL
  • Low profile: maximum height of 1.1mm.
  • Low inductance, excellent clamping capability
  • For surface mounted applications to optimize board space
  • High temperature to reflow soldering guaranteed: 260°C/430sec
  • 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 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
  • Fast response time: typically less than 1.0ns from 0 Volts to VBR min
  • Glass passivated junction
  • Built-in strain relief
  • Plastic package is flammability rated V-0 per Underwriters Laboratories
  • Meet MSL level1, per J-STD-020, LF maximun peak of 260°C
  • Matte tin lead–free plated
  • Halogen-free and RoHS compliant
  • Pb-free E3 means 2nd level interconnect is Pb-free and the terminal finish material is tin(Sn) (IPC/ JEDEC J-STD609A.01)
  • UL Recognized to UL 497B

Applications:

SMF devices are ideal for the protection of I/O interfaces, VCC bus and other vulnerable circuit used in cellular phones, portable devices, business machines, power supplies and other consumer applications.

 

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Application Spotlight


Property (Mouseover for details) Value
Reverse Standoff Voltage (VR) (Vso) 33
Watts (W) 200
Peak Pulse Current (Ipp) 10x1000 (A) 3.8
Breakdown Voltage (MIN VBR@IT ) (V) 36.7
Breakdown Voltage (VBR@IT) (V) 40.6
Ir @Vso( μA) 1
On-State Current (IT) (mA) 1
Max Clamp Voltage (Vc) (V) 53.3
Partner ECAD Models SMF33CA
Operating Temperature Maximum Celsius 150
Polarity Bipolar
Package SOD-123FL

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Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration
SMF33CA "TVS SMF 33V Bi, 7'' T&R" RoHS No 11/18/2020 PbFree No 11/18/2020 CoC_RoHS9_SMF33CA REACH209_Declaration_Contain-_SMF33CA Yes
11/18/2020		 Contains IPC_SMF_Series
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