# SM8S33A (Component) ## Description Automotive 6.6 kW Surface-Mount TVS Diode – Unidirectional transient voltage suppressor (TVS) diode designed for automotive electronics, industrial power supplies, DC power rails, telecom equipment, battery protection, load dump suppression, and embedded circuit protection applications. The Littelfuse SM8S33A features a 33 V reverse standoff voltage (VRWM), 36.7 V minimum breakdown voltage, and 53.3 V maximum clamping voltage at a 132 A peak pulse current (10/1000 µs). Rated for 6.6 kW peak pulse power dissipation, it provides robust protection against ESD, lightning-induced surges, inductive switching transients, and automotive load dump events. Features AEC-Q101 qualification, low leakage current (2 µA typical), fast response time, and high surge capability for demanding environments. Packaged in a SMTO-263 (DO-218AB-compatible) surface-mount package, it operates over a −55°C to +175°C junction temperature range, making it ideal for high-reliability automotive and industrial designs. #Littelfuse #SM8S33A #TVSDiode #TransientVoltageSuppressor #CircuitProtection #ESDProtection #SurgeProtection #LoadDumpProtection #AECQ101 #AutomotiveElectronics #IndustrialElectronics #EmbeddedSystems ## Component Details - **Owner:** silicon-yard - **Created:** 8/5/2026 - **Last Updated:** 8/5/2026 - **Visibility:** Public - **Manufacturer Part Number:** SM8S33A - **Manufacturer Name:** Littelfuse - **Mount:** Surface Mount - **Symbol Style:** parametric-v1 - **Part Type:** Circuit Protection Devices - **Datasheet URL:** https://www.mousTVSer.com/catalog/specsheets/Littelfuse_7-18-2024_TVS_Diode_SM8S%20_2024-6-04.pdf?_gl=1*1gazpi6*_gcl_aw*R0NMLjE3NDk4ODA1NDAuQ2owS0NRandtS19DQmhDRUFSSXNBTUt3Y0Q0R29LZUx3alBiM3M3X2NYbVN1T2x1VGtMbnotMkxsLXJObmdrRUJPS1duOHE3QjRzUk41d2FBc3FTRUF - **Used in:** 21 projects ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Arrow](https://www.arrow.com/en/products/sm8s33a/littelfuse.html?utm_currency=USD&region=nac) | $3.3377 | 0 | | [LCSC](https://lcsc.com/product-detail/esd-and-surge-protection-tvs-esd_semiware-sm8s33a_C696341.html) | $0.8691 | 7.3K | | [Mouser](https://www.mouser.com/en/ProductDetail/Littelfuse/SM8S33A?qs=IKkN%2F947nfAUolGff63BZg%3D%3D) | $3.95 | 842 | - **Part Type:** Circuit Protection Devices - **Manufacturer:** Littelfuse - **MPN:** SM8S33A - **Mount Type:** Surface Mount - **Package / Case Code:** TO-263 - **Pin Count:** 3 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | K | | | 2 | A_1 | | | 3 | A_2 | | --- *Generated from [https://www.flux.ai/silicon-yard/sm8s33a](https://www.flux.ai/silicon-yard/sm8s33a)*