Defibrillation/Surge/ESD Protector

Lowest Leakage Defibrillation and ESD Protection Device


The MAX30031–MAX30034 are patent-pending protection devices intended to (with the help of external, energy-rated resistors) absorb repetitive defibrillation and other high-energy pulses to protect sensitive electronic circuitry in ECG and other medical/industrial equipment. The devices can withstand over 100,000 defibrillation pulses without failure.

The devices are intended to replace the gas-discharge tubes and transient absorbers in applications where its significant reduction in size is beneficial and its lower, well defined on-voltage can offer higher degrees of protection to sensitive electronics.

The devices use a combination of a rugged integrated circuit process and high-speed circuitry to ensure very fast turn-on times with trigger voltages low enough to not require secondary clamping circuitry. A low hold current of approximately 175mA ensures protection is maintained for the entire length of the high-energy transient event.

The MAX30031–MAX30034 are available in a small, 3mm x 5mm µMAX-8 package and are specified over the 0°C to +70°C temperature range.
MAX30031, MAX30032, MAX30033, MAX30034: Typical Application Circuit MAX30031, MAX30032, MAX30033, MAX30034: Typical Application Circuit Enlarge+

Key Features

  • Low Leakage Defibrillation Protection IC Helps ECG Systems
  • Low Capacitance ~ 3pF
  • Low Leakage ~ 20pA @ 70°C
  • Fast Turn-On < 2ns
  • Low On-Voltage 3.9V (typ)
  • High Peak Current in Excess of 4A
  • Withstands Over 100k Defibrillation Pulses Without Failure
  • 0°C to 70°C Temperature Range
  • Small, 3mm X 5mm µMAX® Package


  • AED Units
  • Clinical Patient Monitoring
  • Fixed Broadband Wireless Access
  • Industrial Equipment Protection
  • Wearable Medical
Part Number Protection Method Channels C
Package/Pins Budgetary
See Notes
MAX30034  +/-10.3V Trigger Voltage 4 3 -8 to +8
$3.33 @1k
See All ESD Protection Diode Arrays (13)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX30034EVKIT: Evaluation Kit for the MAX30034

Quality and Environmental Data

Request Reliability Report for: MAX30034 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

Topmark Coding MAX30034

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