1 Features
• ISO 10605 (330pF, 330Ω) ESD protection:
– ±27kV contact discharge
– ±30kV air gap discharge
• IEC 61000-4-5 surge protection:
– 6.5A (8/20μs)
– Clamping voltage: 71V at 6.5A (8/20μs)
• IO Capacitance: 4.3pF (typical)
• Ultra low leakage current: 10nA (maximum)
• ESD clamping voltage: 56V at 16A TLP
• Industrial temperature range: -55°C to +150°C
• AEC-Q101 qualified
• Industry standard SOD-323 leaded package
(2.65mm × 1.3mm)

2 Applications
• I/O Protection
• Body Electronics & Lighting
• Hybrid, Electric, & Powertrain Systems

3 Description
The ESD851-Q1 is a bidirectional ESD protection
diode designed for clamping harmful transients such
as ESD and surge. The ESD851-Q1 is rated to
dissipate ESD strikes up to ±30kV (contact and air
gap discharge), which exceeds the maximum level
specified in the IEC 61000-4-2 international standard
(Level 4). For surges, the device can clamp 8/20μs
surges with peak currents up to 6.5A in accordance
with the IEC 61000-4-5 standard.
This device also features a 4.3pF (typical) IO
capacitance enabling it to protect data lines. The
low dynamic resistance and low clamping voltage
provides system level protection against transient
events.
The ESD851-Q1 is offered in the industry
standard, leaded SOD-323 package to enable easy
solderability.