SM8S22AHE3/2D

SM8S22AHE3/2D is a two-channel, high-energy transient voltage suppressor (TVS) diode array in the SM8S package. It provides surge/ESD protection on two lines (two-channel protection) and is typically used to guard automotive and industrial electronics from voltage transients on power rails and data interfaces (e.g., CAN/LIN, I/O lines).
Key points:
- 22 in the name indicates a nominal standoff voltage around 22 V.
- AHE3/2D suffix denotes a specific automotive-grade packaging/configuration for dual-channel protection.
- Designed for rugged environments and high surge capability; suitable for two-line protection in compact packages.
Common uses include protecting ECUs, power rails, and signal lines in automotive and industrial equipment. For exact electrical specs (stand-off voltage, breakdown, clamp, capacitance, surge current, ESD rating), and detailed package/layout information, consult the official datasheet from the manufacturer.

I don’t have the exact datasheet for SM8S22AHE3/2D. It appears to be a high‑power TVS diode (SM8S family) used for transient protection. Key features you’d expect (verify against the specific datasheet) are:
- Type: Transient Voltage Suppressor (TVS) diode in SM8S package
- Nominal stand‑off voltage: around 22 V (VRWM)
- Surge capability: high peak pulse power (typical variants in the SM8S family support hundreds of watts)
- Response: ultra-fast, in the nanosecond range
- Direction: unidirectional and/or bidirectional versions available (confirm for this exact part)
- Clamping: low dynamic resistance with relatively strong clamping behavior
- Temperature range: typically −55°C to 125°C (auto-grade variants may extend)
- Compliance: RoHS; automotive/industrial options may exist (AEC‑Q101 with appropriate variant)
- Packaging: surface-mount SM8S package suitable for reflow soldering
For precise specs (VRWM, VBR, Vclamp, Ipp, Cj, packaging, and qualification), please provide the manufacturer or a datasheet link. I can pull exact numbers from it.

The SM8S22AHE3/2D is in an SM8 surface-mount TVS package (SMC-style, DO‑214AA). The “/2D” suffix denotes tape-and-reel packaging for automated assembly.

SM8S22AHE3/2D is a 2‑pin device (two-terminal). Its pins are Anode and Cathode. Function: a TVS (transient-voltage-suppression) diode used to clamp and absorb ESD, surge and transient overvoltage events to protect circuits (placed across supply or signal lines).

Manufacturer: STMicroelectronics.
Type of company: STMicroelectronics is a multinational semiconductor company that designs, develops and manufactures a broad range of semiconductor products (microcontrollers, analog and power ICs, discrete devices, sensors and protection components such as TVS diodes).

SM8S22AHE3/2D is a high‑power TVS diode (SM8S package) for surge/ESD protection of 22‑V class rails and data lines. Typical applications:
- Automotive 12/24 V systems (load‑dump protection)
- Industrial controls and power supplies
- Telecom/network interfaces
- Data lines (USB/CAN/Ethernet)
- DC‑bus protection in solar/industrial inverters

I can’t find a match for "SM8S22AHE3/2D" in public part databases. Please provide the manufacturer or a datasheet (or at least: device type, standoff/breakdown voltage, clamping voltage, power rating, polarity and package). With those specs I can list direct equivalents (e.g., same-voltage TVS diodes or surge suppressors) concisely.