# SMAJ5.0A-Q (Component) ## Description SMAJ5.0A-Q is an automotive-grade, unidirectional Transient Voltage Suppressor (TVS) diode from Bourns. It is designed to protect sensitive electronic circuits from Electrostatic Discharge (ESD), Electrical Fast Transients (EFT), lightning-induced surges, and other transient overvoltage events. The device is commonly used on 5 V power rails and communication interfaces in automotive, industrial, and telecom applications. Key Features Unidirectional TVS diode for DC line protection. 5 V reverse standoff voltage (VRWM) suitable for 5 V systems. 6.4 V minimum breakdown voltage (VBR). 9.2 V maximum clamping voltage (VC) at peak pulse current. 400 W peak pulse power dissipation (10/1000 μs waveform). 43.5 A peak pulse current (IPP) capability. AEC-Q101 qualified for automotive applications. Fast response time (<1 ps typical) for effective transient suppression. Wide operating temperature range: -55°C to +150°C. Surface-mount DO-214AC (SMA) package for compact PCB designs. RoHS compliant and suitable for automated assembly processes. Typical Applications Automotive ECUs and power rails 5 V power supplies Telecom equipment Industrial control systems I/O ports and communication interfaces Consumer electronics requiring surge protection #CommonPartsLibrary #Diode ## Component Details - **Owner:** lcsc - **Created:** 11/4/2024 - **Last Updated:** 6/2/2026 - **Visibility:** Public - **Package or Case Code:** SMA_L4.4-W2.8-LS5.1-RD - **Manufacturer Part Number:** SMAJ5.0A-Q - **Manufacturer Name:** BOURNS - **License:** https://creativecommons.org/licenses/by/4.0/ - **Part Type:** TVS - **LCSC Part Number:** C1869355 - **Datasheet URL:** https://www.lcsc.com/datasheet/C1869355.pdf?spm=wm.sxq.inf.ggs&lcsc_vid=T1kIXgFeT1NaU1RXQFBbUlUHT1cKU1NXFVBeX1VSTlAxVlNeR1VeUVFRTlBbUzsOAxUeFF5JWBYZEEoKFBINSQcJGk4dAgUUFAk%3D - **Used in:** 80 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/smaj5-0a-q/bourns.html?utm_currency=USD&region=nac) | N/A | N/A | | [LCSC](https://www.lcsc.com/product-detail/C1869355.html) | $0.9671 | 0 | | [Mouser](https://www.mouser.com/ProductDetail/Bourns/SMAJ5.0A-Q?qs=OlC7AqGiEDmJBVVHOAxNLw%3D%3D) | $0.56 | 814 | - **Part Type:** Circuit Protection Devices - **Manufacturer:** Bourns - **MPN:** SMAJ5.0A-Q - **Mount Type:** Surface Mount - **Package / Case Code:** DO - **Pin Count:** 2 - **Compliance:** Rohs ## Pins | Pin | Name | Type | |-----|------|------| | 1 | C | | | 2 | A | | --- *Generated from [https://www.flux.ai/lcsc/smaj5p0a-q~a86n](https://www.flux.ai/lcsc/smaj5p0a-q~a86n)*