SM8S22AHE3/2D

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SM8S22AHE3/2D

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TVS DIODE 22VWM 35.5VC DO218AB

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Especificações

Atributo Valor
Supplier Vishay General Semiconductor - Diodes Division
Package Tape & Reel (TR),Cut Tape (CT)
Series Automotive, AEC-Q101, PAR®
ProductStatus Obsolete
Type Zener
UnidirectionalChannels 1
Voltage-ReverseStandoff(Typ) 22V
Voltage-Breakdown(Min) 24.4V
Voltage-Clamping(Max)@Ipp 35.5V
Current-PeakPulse(10/1000µs) 186A
Power-PeakPulse 6600W (6.6kW)
PowerLineProtection No
Applications Automotive
OperatingTemperature -55°C ~ 175°C (TJ)
MountingType Surface Mount
Package/Case DO-218AB

Visão Geral

Description

SM8S22AHE3/2D is a high‑power transient-voltage-suppressor (TVS) diode in the SM8S family. It protects DC power rails and sensitive electronics from voltage spikes and ESD, commonly used in automotive and industrial applications.
What the name implies
- 22: nominal stand‑off voltage near 22 V (the voltage at which it begins to conduct)
- AHE: indicates automotive/high‑energy grade variant (suffix meaning, plus reliability class)
- 3/2D: packaging, reel/lot or revision codes (a specific variant from the datasheet)
Key notes
- Check the exact datasheet for the precise electricals: V_R, V_BR, I_PP (peak pulse current), leakage, capacitance, and packaging dimensions.
- Decide between unidirectional or bidirectional version based on your circuit.
- Use with the proper PCB footprint and mounting to handle the energy it must absorb.
If you need, tell me the manufacturer and I can pull the exact specs for this variant.

Features

SM8S22AHE3/2D is a high-power TVS diode from the SM8S family. Key features:
- Stand-off voltage: 22 V (suitable for 12/24 V systems)
- High surge capability: supports large 10/1000 µs transient pulses (hundreds of amperes)
- Very fast response time (instantaneous clamping)
- Wide operating temperature range (typical -55°C to +125°C; automotive grades extend to higher temps, e.g., +150°C)
- Automotive-grade options available (AEC-Q101 qualified variants)
- Packaging: rugged surface-mount (SM8S/DO-214AB style) for good heat dissipation
- RoHS compliant and halogen-free
- Available in unidirectional and bidirectional versions
Applications: protect power rails in automotive, industrial, and consumer electronics from surges, load dumps, and ESD. For precise electrical specs (clamp voltage, exact Ipp, and package details), refer to the specific datasheet.

Pinout

Pin count: 8 pins. Function: Dual-line transient voltage suppressor (TVS) diode array in the SM8S package, providing two protected lines with a common return (ground) for ESD/surge protection of two data lines.

Manufacturer

- Manufacturer: Vishay Intertechnology, Inc.
- What kind of company: A global, US-based multinational that designs and manufactures discrete semiconductors (diodes, transistors) and passive electronic components (resistors, capacitors, inductors) for various industries.

Application

SM8S22AHE3/2D is a high-power surface-mount TVS diode. Applications:
- Transient surge protection on 12–24 V automotive/industrial power rails
- Protection for DC-DC converters and power inputs
- Surge/ESD protection for data and high-speed lines (CAN/CAN-FD, USB, HDMI, Ethernet)
- Telecom and network equipment protection
- Protection in consumer electronics
- Solar/inverter and energy-storage systems
Note: suitable for both unidirectional/bidirectional variants in surge suppression.

Package

Package type: SM8S — a high‑power, surface‑mount package (used for TVS diodes).

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