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SM8S18AHE3_A/I The Vishay Dale SM8S18AHE3_A/I is a unidirectional TVS diode designed for transient voltage suppression. It features a 6600W peak pulse power rating and a surface mount DO-218AB package.
Mfr Part #:

SM8S18AHE3_A/I

Available from 1 distributors
Mfr Name: Vishay
Vishay
The Vishay Dale SM8S18AHE3_A/I is a unidirectional TVS diode designed for transient voltage suppression. It features a 6600W peak pulse power rating and a surface mount DO-218AB package.
✓ Total Stock: 5,520 pcs
$ Price Range: $0.55

SM8S18AHE3_A/I Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
5,520 pcs
On Request
5520 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

SM8S18AHE3_A/I Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Applications
Automotive Grade
Current
Lead Style
Mounting Type
Operating Temperature
Power
Power Dissipation
Power Line Protection
Supplier Device Package
Tape & Reel
Type
Unidirectional Channels
Voltage
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SM8S18AHE3_A/I Description

Short technical summary and product information.

The Vishay Dale SM8S18AHE3_A/I is a high-reliability Transient Voltage Suppressor (TVS) diode. It is designed for automotive applications and sensitive electronics protection against voltage transients induced by inductive load switching and lighting, including automotive load dump protection.

 

This unidirectional TVS diode offers a working voltage of 18V and a clamping voltage of 29.2V at 226A. It boasts a significant peak pulse power dissipation of 6600W (10 x 1000 μs waveform) and a high surge capability of 700A (8.3 ms single half sine-wave).

 

The device operates over a wide temperature range of -55°C to 175°C (TJ) and is housed in a surface mount DO-218AB package. The molding compound meets UL 94 V-0 flammability rating, and the terminals are matte tin plated, solderable per J-STD-002 and JESD 22-B102.

 

Key features include optimized junction passivation, high temperature stability, and AEC-Q101 qualification, making it suitable for high reliability and automotive requirements. It meets MSL level 1 per J-STD-020.

SM8S18AHE3_A/I Quick Information

Product Type: TVS Diode
Series: SM8S
Canonical Name: Vishay Dale SM8S18AHE3_A/I Transient Voltage Suppressor Diode
Subcategory: TVS Diodes

SM8S18AHE3_A/I Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

SM8S18AHE3_A/I Estimated Pricing

Qty Low High
1+ $0.55 $0.55

Estimated market price range - modelled values for guidance only, not live distributor offers.

SM8S18AHE3_A/I Features

  • Unidirectional TVS diode with 18V working voltage.
  • Clamping voltage of 29.2V at 226A peak pulse current.
  • Peak pulse power dissipation of 6600W (10x1000μs).
  • Operating temperature range from -55°C to 175°C.
  • Surface mount DO-218AB package.

SM8S18AHE3_A/I Applications

  • Used for overvoltage protection in electronic circuits.
  • Suitable for suppressing transients in power systems.
  • Ideal for protecting sensitive components from surges.
  • Commonly applied in automotive and industrial applications.

SM8S18AHE3_A/I FAQs

7 frequently asked questions generated from this part’s specifications.
What is the working (standoff) voltage of the SM8S18AHE3_A/I?

The working voltage (VWM) is 18 V.

What is the breakdown voltage range?

The breakdown voltage (VBR) ranges from 11.1 V to 52.8 V.

What is the clamping voltage?

The clamping voltage (VC) is 29.2 V at a peak pulse current of 226 A.

What is the peak pulse current rating?

The peak pulse current (IPP) is 226 A under a 10 x 1000 μs waveform.

What is the peak pulse power dissipation?

Peak pulse power dissipation is 6600 W (10 x 1000 μs) and 5200 W (10 x 10 000 μs).

What package is this device available in?

It is available in a DO-218AB surface mount package.

What is the moisture sensitivity level (MSL)?

MSL is Level 1 (unlimited), per J-STD-020.

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