Low-Capacitance ESD Protection
  • RClamp0524PQ
  • Low Capacitance RailClamp® 4-Line Surge and ESD Protection
  • RClamp0531TQ
  • Ultra-Low Capacitance 1-Line ESD protection
  • RClamp0532T
  • Low Capacitance RailClamp® 4-Line Surge and ESD Protection
  • RClamp0582N
  • RailClamp® Low Capacitance TVS Diode Array
  • RClamp2594N
  • Low Capacitance RailClamp® 4-Line Surge and ESD Protection
  • RClamp3346P
  • Low Capacitance RClamp® 6-Line ESD protection
  • RClamp5011T
  • Low Capacitance RClamp® 5V, 1-Line ESD Protection
  • RClamp7534P
  • Ultra Low Capacitance RClamp® 4-Line ESD Protection
Semtech RClamp3521ZA

Semtech RClamp3521ZA

RailClamp® Low Capacitance ESD and EOS Protection

Add to Watch List

RailClamp® TVS diodes are designed to provide ESD and EOS protection on high-speed ports. RClamp3521ZA is a 1-line, bidirectional device with a typical capacitance is only 0.45pF and working voltage of 3.5V. It is manufactured using Semtech’s proprietary snap-back technology which minimizes both ESD peak clamping and TLP clamping voltage. The dynamic resistance is extremely low (0.12 Ohms typical) providing optimum protection of sensitive circuits.


  • High ESD withstand Voltage: +/-20kV (Contact) per IEC 61000-4-2
  • Ultra-small package
  • Protects one line
  • Low ESD clamping voltage
  • Working voltage: 3.5V
  • Low capacitance: 0.45 pF Typical
  • Low leakage current
  • Low dynamic resistance
  • Solid-state silicon-avalanche technology


  • USB3.0 / USB 3.1
  • USB Type-C
  • V-By-One
  • MHL / MDDI
  • LVDS Interfaces


  • SLP0603P2X3F package
  • Pb-Free, Halogen Free, RoHS/WEEE compliant
  • Nominal Dimensions: 0.6 x 0.3 x 0.25 mm
  • Packaging: Tape and Reel

Order Codes

  • RClamp3521ZATFT
    • Qty: 15,000
    • Reel size: 7”
  • RClamp3521ZATNT
    • Qty: 10,000
    • Reel size: 7”
- Close -
Add Product to Watch List

Please login to the mySemtech member site to add products to your personal Watch List.

If you're not registered for mySemtech, please Register now. mySemtech member benefits include pre-filled forms for quick and easy online ordering, technical support, new product information and more.