# CSS4J-4026R-1L00F (Component) ## Description 1 mOhms ±1% 4W Chip Resistor Nonstandard Automotive AEC-Q200, Current Sense Metal Element Bourns Inc. CSS4J-4026R-1L00F is a high-power surface-mount current sense resistor designed for accurate current measurement in power electronics applications. It belongs to the CSS4J-4026 series and uses a metal element construction that provides low resistance, high power handling, and excellent stability for automotive and industrial applications. This device features a 1 mΩ resistance value, ±1% tolerance, and 4 W power rating, making it suitable for monitoring high-current paths while minimizing measurement losses. It is also qualified for AEC-Q200 automotive applications and operates across a wide temperature range. Key Features Component Type: SMD Current Sense Resistor (Metal Element / Metal Strip) Resistance Value: 1 mΩ (0.001 Ω) Resistance Tolerance: ±1% Power Rating: 4 W Package Size: 4026 (approx. 10.06 mm × 6.60 mm) Number of Terminals: 4 terminals (Kelvin sensing configuration) Temperature Coefficient: approximately ±75 ppm/°C Operating Temperature Range: −55°C to +170°C Construction: Metal element current shunt resistor for accurate current measurement Qualification: Automotive AEC-Q200 compliant Typical Applications Battery Management Systems (BMS) EV and automotive power systems Motor control circuits Power supplies and DC/DC converters Overcurrent monitoring and protection circuits Industrial power monitoring equipment #CommonPartsLibrary #Bourns #CSS4J4026 #CurrentSenseResistor #ShuntResistor #MetalElementResistor #AECQ200 #PowerElectronics #BatteryManagementSystem #EVElectronics #SMTComponents #PCBDesign ## Component Details - **Owner:** adrian95 - **Created:** 6/22/2026 - **Last Updated:** 6/22/2026 - **Visibility:** Public - **Manufacturer Part Number:** CSS4J-4026R-1L00F - **Resistance:** 1mΩ - **License:** https://creativecommons.org/licenses/by/4.0/ - **Symbol Style:** parametric-v1 - **Compliance:** AEC-Q200 - **Mount:** Standard - **Part Type:** Resistors - **Datasheet URL:** https://storage.googleapis.com/graviton-electric-symbols/document_assets/user-uploaded/20de3b89fde120c82e4878f7d0477aa1b20a42b716edf41d8bfe3b955f53b8cb.pdf - **Manufacturer Name:** Bourns Inc. - **Used in:** 1 project ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Mouser](https://www.mouser.com/ProductDetail/Bourns/CSS4J-4026R-1L00F?qs=Uem7cGQRk%252BrMsvr8dze9Iw%3D%3D) | N/A | N/A | - **Part Type:** Resistors - **Sub-Type:** Surface Mount - **Manufacturer:** Bourns - **MPN:** CSS4J-4026R-1L00F - **Mount Type:** Standard - **Package / Case Code:** KEY-SMD - **Pin Count:** 4 - **Resistance:** 1mΩ - **Compliance:** AEC-Q200 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | 1 | | | 2 | 2 | | | 3 | 3 | | | 4 | 4 | | --- *Generated from [https://www.flux.ai/adrian95/css4j-4026r-1l00f~ke0](https://www.flux.ai/adrian95/css4j-4026r-1l00f~ke0)*