The ESDAHD712BE2 is designed for asymmetrical (12V to -7V) protection in multi-point data transmission standard RS-485 applications. The ESDAHD712BE2 can be used to protect devices from transient voltages resulting from electrostatic discharge (ESD), electrical fast transients (EFT), and lightning induced surges.

Features and Benefits
  • Peak pulse power 500W @ 8/20us waveform
  • IEC 61000-4-2 (ESD) ±30kV(air), ±30kV(contact)
  • IEC 61000-4-4 (EFT) 40A (5/50ns)
  • IEC 61000-4-5 (Lightning) 19A (8/20μs)
  • Protects two +12V to -7V lines
  • Low capacitance
  • Low leakage current
  • Low clamping voltage
  • Meet MSL level1
  • Halogen free and RoHS compliant
  • Protection of RS-485 transceivers with extended common-mode range
  • Security systems
  • Automatic Teller Machines
  • HFC systems
  • Networks
Quality, reliability & chemical content
Type Number Symbol Parameter Conditions Pin 1 to Pin 3 and Pin 2 to 3
(12V TVS)
Pin 3 to Pin 1 and Pin 3 to 2
(7V TVS)
Min Typ Max Min Typ Max  
   ESDAHD712BE2 VRWM  reverse working voltage  Pin3 to 1 or Pin2 to 1     12     7 V
VBR  breakdown voltage  IT = 1 mA 13.3     7.5     V
VC  clamping voltage  IPP = 5 A; 8/20μs waveform     22     15 V
 IPP = 19 A; 8/20μs waveform     30     18  
IR  reverse leakage  VR = VRWM     1     20 μA
CJ  Junction Capacitance  VR = 0 V; f = 1MHz     75     75 pF
 VR = VRWM; f = 1MHz   45     45   pF
Type number Package Packing Product status Marking Orderable part number Ordering code (12NC)


STANDARD MARK SMD Volume production Standard Marking ESDAHD712BE2X 9340 727 85115
Type number Ordering code (12NC) Orderable part number Region Distributor Order sample
ESDAHD712BE2 9340 727 85115 ESDAHD712BE2X NA NA  

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Chemical content Orderable part number Type number RoHS / RHF Leadfree conversion date MSL MSL LF
ESDAHD712BE2 ESDAHD712BE2X ESDAHD712BE2 Leaded  D always Pb-free 1 1

Chemical Content - ESDAHD712BE2

As a proactive and sustainable company, WeEn Semiconductors has decided to publish chemical content information of its product portfolio through direct Internet access. With this information, we can provide data to our customers to facilitate any assessment regarding compliance to the RoHS directive and lead-free status. WeEn Semiconductors has set a standard in the semiconductor business with this detailed level of data, directly retrieved from its general product database. WeEn Semiconductors products are compliant to the EU Directives RoHS, ELV and the China RoHS.


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