SMBG12屬于電路保護(hù)的TVS-二極管。由美高森美公司制造生產(chǎn)的SMBG12TVS - 二極管TVS 二極管是一種半導(dǎo)體器件，可用于限制或阻止特定電壓電平的浪涌。該系列產(chǎn)品使用二極管（只能單向?qū)щ姷脑骷┻M(jìn)行設(shè)計。TVS 是 Transient Voltage Suppression/Suppressor（瞬態(tài)電壓抑制/抑制器）的首字母縮寫。類型包括轉(zhuǎn)向（軌至軌）或齊納，具有單向通道、雙向通道、電壓 – 反關(guān)態(tài)、電壓 – 擊穿、電壓 – 箝位、電流 – 峰值脈沖、功率 – 峰值脈沖和電源線路保護(hù)等特征。
DESCRIPTION
This SMBJ5.0-170A or SMBG5.0-170A series of surface mount 600 W Transient Voltage Suppressors (TVSs) protects a variety of voltage-sensitive components from destruction or degradation. It is available in J-bend design (SMBJ) with the DO-214AA package for greater PC board mounting density or in a Gull-wing design (SMBG) in the DO-215AA for visible solder connections. It is also available in both unidirectional and bidirectional configurations with a C or CA suffix part number as well as RoHS Compliant with an e3 suffix. Their response time is virtually instantaneous. As a result, they can be used for protection from ESD or EFT per IEC61000-4-2 and IEC61000-4-4, or for inductive switching environments and induced RF protection. They can also protect from secondary lightning effects per IEC61000-4-5 and class levels defined herein. Microsemi also offers numerous other TVS products to meet higher and lower power demands and special applications.
FEATURES
? Available in both unidirectional and bidirectional
construction (add C or CA suffix for bidirectional)
? Selections for 5.0 to 170 volts standoff voltages (VWM)
? Optional 100 screening for avionics grade is available
by adding MA prefix to part number for 100 temperature
cycle -55oC to +125oC (10X) as well as surge (3X) and 24
hours HTRB with post test VZ & IR (in operating direction
for unidirectional or both directions for bidirectional)
? Options for screening in accordance with MIL-PRF-19500
for JANTX are available by adding MX prefix to the part
number.
? Axial-lead equivalent packages for thru-hole mounting
available as P6KE6.8 to P6KE200CA (consult factory for
other surface mount options)
? Moisture classification is Level 1 with no dry pack required
per IPC/JEDEC J-STD-020B
? RoHS compliant devices available by adding an “e3” suffix
APPLICATIONS / BENEFITS
? Economical surface mount design in both J-bend or Gull-wing terminations
? Protects sensitive components such as IC’s, CMOS, Bipolar, BiCMOS, ECL, DTL, T2L, etc.
? Protection from switching transients & induced RF
? Compliant to IEC61000-4-2 and IEC61000-4-4 for ESD and EFT protection respectively
? Secondary lightning protection per IEC61000-4-5 with 42 Ohms source impedance:
Class 1: SMB 5.0 to SMB 120A or CA
Class 2: SMB 5.0 to SMB 60A or CA
Class 3: SMB 5.0 to SMB 30A or CA
? Class 4: SMB 5.0 to SMB 15A or CA
? Secondary lightning protection per IEC61000-4-5 with 12 Ohms source impedance:
Class 1: SMB 5.0 to SMB 36A or CA
? Class 2: SMB 5.0 to SMB 18A or CA
