The ESD2CAN24-Q1 is an Automotive Dual 3pF, ±24V, ±30kV ESD Protection Diode for CAN and In-Vehicle Networking

The ESD2CAN24-Q1 is a bidirectional ESD protection diode for APX321SEG-7 Controller Area Network (CAN) interface protection. The rated contact ESD strike dissipation of the ESD2CAN24-Q1 exceeds the maximum levels specified in the ISO 10605 automotive standard (±30kV contact, ±30kV air gap). Low dynamic resistance and low clamping voltage ensure system-level protection from transient events. This protection is key because automotive systems require a high level of robustness and reliability for safety applications.

The device features low IO capacitance per channel and a pinout to accommodate two automotive CAN buses (CANH and CANL) against damage from electrostatic discharge (ESD) and other transients. Additionally, the 3 pF line capacitance of the ESD2CAN24-Q1 is suitable for CAN, CANFD, CAN SiC and CAN-XL applications that can support data rates up to 10 Mbps.

The ESD2CAN24-Q1 is available in a two-lead package for easy routing.


●IEC 61000-4-2 Level 4 ESD protection:

○±30kV contact discharge

○±30kV air gap discharge

●ISO 10605 (330 pF, 330 Ω) ESD protection:

○±30kV contact discharge

○±30kV air gap discharge

●Tested to IEC 61000-4-5

●24V working voltage

●Bidirectional ESD protection

2-channel device provides complete ESD protection from a single component

●Low clamping voltage protects downstream components

●Compliant with AEC-Q101

I/O capacitance = 3 pF (typ)

●SOT-23 (DBZ) small, standard, general-purpose package

●SOT-323, SC-70 (DCK) very small, standard, space saving, universal footprint

●Leaded package for automatic optical inspection (AOI)


●Car on-board network:

— Controller Area Network (CAN)

— Controlled Area Network Flexible Data Rate (CAN-FD)

— Low fault tolerance CAN

— High-speed CAN

●Industrial control network:

— DeviceNet IEC 62026-3

— CANopen – CiA 301/302-2 and EN 50325-4


Number of channels (#): 2

IO Capacitance (Typ) (pF): 3

Vrwm (V): 24

IEC 61000-4-2 Contacts (+/- kV): 30

IEC 61000-4-5 (A): 3.5

Bidirectional/Unidirectional: Bidirectional

Dynamic Resistance (Typ) (Ω): 0.45

Clamping Voltage (V): 32

IO leakage current (Max) (nA): 50

Operating temperature range (°C): -40 to 125

ESD2CAN24-Q1 Typical Application

ESD2CAN24-Q1 functional block diagram