The **FCR-F0-R/Q** series refers to a specific line of **Film Chip Resistors** manufactured by major electronic component suppliers (most notably **Kamaya/Walsin** group). These are surface-mount devices (SMD) designed for high-density electronic circuits. Below is a detailed breakdown of the technical specifications and electronic characteristics for this series. --- ### 1. General Specifications The part number suffix **R/Q** typically indicates the packaging type (Reel sizes) and specific tolerance/power ratings. | Feature | Description | | :--- | :--- | | **Component Type** | Thick Film Chip Resistor | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Material** | Metal glaze on high-grade ceramic (Alumina) substrate | | **Termination** | Lead-free (Sn) over Nickel (Ni) barrier | | **Compliance** | RoHS Compliant, Halogen-Free | --- ### 2. Key Electrical Characteristics These parts are defined by their size (Case code), resistance value, and power handling capabilities. * **Size Codes (Typical):** Common sizes include 01005, 0201, 0402, 0603, 0805, 1206, 1210, 2010, and 2512. * **Resistance Range:** Typically available from **1Ω to 10MΩ** (plus 0Ω jumpers). * **Tolerance:** * **F:** ±1% * **J:** ±5% * **Temperature Coefficient (TCR):** Usually ±100 ppm/°C to ±200 ppm/°C depending on size and resistance. --- ### 3. Part Number Breakdown (Example) To understand a specific part like `FCR05 F 1002 R`, the code is usually deciphered as follows: | Code Segment | Meaning | Example Value | | :--- | :--- | :--- | | **FCR** | Series Name | Film Chip Resistor | | **05** | Case Size | 0805 (Metric 2012) | | **F** | Tolerance | ±1% | | **1002** | Resistance Value | 100 + 00 = 10kΩ | | **R / Q** | Packaging | R = 7" Reel / Q = 10" Reel | --- ### 4. Construction Layers The electronic stability of the FCR series is due to its multi-layer construction: 1. **Ceramic Substrate:** Provides mechanical strength and heat dissipation. 2. **Resistive Element:** Thick film paste screen-printed onto the substrate. 3. **Protective Coating:** A glass or epoxy layer to prevent oxidation and moisture ingress. 4. **Terminations:** Inner electrode (Ag/Pd), Barrier layer (Ni), and Solderable layer (Sn). --- ### 5. Application Areas These resistors are general-purpose components found in: * **Consumer Electronics:** Smartphones, tablets, and laptops. * **Industrial:** Power supplies and control boards. * **Telecommunications:** Network routers and base stations.