0402 pad size. (0603 max perimeter is 1. 0201 metric component size. These numbers may be modified based on user equipment capability or fabrication criteria. The smallest case size, 0201, performs better than both the 0402 and 0603 case sizes for all part values. 8mm x 0. This table below shows some of the s Solder Pad Land Pattern When designing with surface mount components, the right solder pad size and land pattern should be used. Understand SMD size codes with our 2026 reference chart. In KiCAD 4. 2mm，但需注意这可能是另一种 SMD Cap 0402 pad size (width) increased in KiCAD 5 Created by: matianfu I just noticed that in KiCAD 5, pad size of 0402 cap is changed. I just started using Altium having previously used PADS. 0 × 0. 04 × 0. KiCad's default library footprint for C_0402 is longer than R_0402. Using a 2D field solver on these dimensions yields a Z 0 of 50Ω for the 5 mil trace. The bottom side has same patterns as the top side. 0x0. 64mm is a disaster for design with compactly arranged capacitors. x, it is 0. Reduced via hole size enhances the use of via in pad technology, especially on smaller devices such as 0402 components. Dec 27, 2025 · A 0402 resistor is a surface-mount chip resistor defined by its imperial package size of 0. 6mm x 0. 5 mm in metric dimensions. Leading to poor connections or even component failure. This then limits the current you can run through these devices. But you will also see sizes of 0805, 1206, 1210 and also the smaller 0201 size. Low power consumption and excellent long life reliability makes it excellent for battery powered equipment and applications. For wave soldering, smaller pads are used. Podstawą jej działania jest zapewnienie najwyższej jakości produktów oraz standardu obsługi klienta. 04英寸×宽0. The cited references specify design requirements for land pattern geometries for surface-mounted components with respect to the preparation of appropriate solder fillets. 64mm is a disaster for design with compactly arranged capa Dirk Nuendyke #65257 IPC Land Pattern Guideline | 20 October, 2011 What is the industry standard pad geometry (dimensions and spacings) for 0402 components? reply » davef #65266 IPC Land Pattern Guideline | 20 October, 2011 SMD 0402 The SMD 0402 (Surface-Mount Device 0402) is a surface-mount package designed for high-density circuits. It is shown in the following table about product size and recommended land pattern of SMD products. Via in pad technology creates increased printed circuit board (PCB) routing space on the outer layers, which aids in the routing of complex printed circuit board designs. I just noticed that in KiCAD 5, pad size of 0402 cap is changed. Learn about their size, values, and where to find them for your projects. Recommended Land Pattern An example of a land pattern for the Rectangular Type is shown below. 5mm) chips and 350 pads for 0603 (1. Solder Pad Land Pattern When designing with surface mount components, the right solder pad size and land pattern should be used. Surface Mount Resistors Size Chart Surface mount resistors come in a variety of sizes. 8 mm Applications: Common in mobile devices and high-density PCBs. For voltage rating greater than 1500 VDC add a corner Optimize your PCB design with expert capacitor pad layout tips from Johanson Dielectrics. Keep in mind that the 008004 footprint is theoretical and untested. g. Note: The suggested land pattern dimensions have been provided for reference only, as actual pad layouts may vary depending on application. 0402 pad sizes too big? These 0402 pads on the JLCPCB 3d view look larger than I am used to seeing on other SMT boards, and seem larger than in my board design, in relation to the 0402 chip body and contacts. When using the IPC Compliant footprint wizard Using a 2D field solver on these dimensions yields a Z 0 of 50Ω for the 5 mil trace. Test points allow continuity to verify correct assembly with a simple ohm-meter. The maximum area the resistor can cover for each case size is given in table 1. The SM0402 LED is packaged in It might be hard to notice at first, but the pad on the left has the 0402 capacitor standing straight up in the air. 6 mm x 0. Edit: u/turiyag please see the below screenshot comparison of 0603 cap (C23) vs the supposedly '0603' that is actually a 0402 (C19) As you can pretty clearly the pad size for the 0603 is considerably larger than that of the 0402. 63 mm 2) for an 0402 ceramic SMT capacitor. Free download SMD size chart. 2 mm to the ‘Z Surface tension varies with the inverse of the bead radius, so I'd assume the smaller the pads, the worse the problem. Over the years, they noticed a difference in failure rates between resistor&capacitor footprints on various boards coming in for assembly – the size and positioning of the footprint pads turned ALL DIMENSIONS ARE NOMINAL VALUES SHOWN IN MILLIMETERS Note: The suggested land pattern dimensions have been provided for reference only, as actual pad layouts may vary depending on application. The biggest culprit of all 0402 issues is the default 0402 footprint in the Eagle library that comes with every installation of Eagle (I love Eagle. One of our team members put together a KiCAD library based on these footprints. Learn how to identify surface-mount resistor and capacitor sizes with examples. 0402 Size ristors Here is a quick drawing of the 0402 size resistor. 5mm to 0. On small parts, if the via's are not in the center of the pad (preferred location) keep the offset symmetrical so the parts are not rotated during soldering. I just hate this one footprint). . As you know, 0402 max size perimeter is 1. The smallest size is the 0201 package which measures a tiny 0. If you need a better matched design for your board, please make use of guidelines for designing boards and tools for calculating optimal board designs. Is this standard 0402 footprint or have I messed something up? SMD size code | SMD components size chart & SMD component size translation. The given solder pad dimensions do not consider application specific requirements, e. would'st you agree. I really do. 00mm更为常见)×宽0. 1mm which is referred to as size 2512. Granted it does give some more room for soldering but as you said, it is super obvious. Thin Film 0402 Size Resistor on Alumina Product may not be to scale The CC1- series single-value resistor chips offer a small size, low shunt capacitance and solder pad option. 6 mm) When designing a PCB with 0402 resistors, it’s crucial to maintain the correct footprint. Our partners at Worthington have kindly shared with us recommended 0201 (0603 Metric), 0402 (1005 Metric), 0603 (1608 Metric), and 0805 (2012 Metric) footprints that have proven to work best with our assembly processes. Mouser offers inventory, pricing, & datasheets for 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT. 5mm, while in KiCAD 5, it is 0. suitable thermal resistance for sufficient heat dissipation or creepage and clearance distances between conductors at different potentials. PRODUCT DESIGNATION: P: Thick film on alumina U: Untrimmed alumina (10% & 20% tolerance only) TERMINATION TYPE: C: Wraparound termination SIZE CODE GRADE: S: Standard Production H: High Reliability (For Screening options, contact the factory) Size Chart - Footprint Selection chart - TopLine Dummy Component Foot Print Cross Reference. PCB pads and their design affect the air gap distance between the opposing polarities of the MLCC termination. Firma promuje polskie produkty oraz całkowicie polski kapitał za granicą. One capacitor manufacturer, for example, recommends a pad size of 28 x 35 mil (0. Using 0402 caps on back. Imperial code vs Metric code - what is the difference? SMD components sizes can be confusing if you don't know the different SMD sizes. 6mm by 0. The table lists the dimensions for reflow soldering. SMD res footprint sizes MLCC PAD LAYOUT A capacitor’s arcover inception point can degrade due to factors such as the MLCC termination, PCB pad design, PCB cleanliness, solder flux residue, surface contamination / deposits and environmental conditions. 0603 (1608 Metric) Dimensions: 1. 01005 pads are much more aggressive and they leave smaller possible ranges for pad size and spacing. IPC standards enhance the design of 01005 and 0402 parts by offering specific guidelines on pad size and clearance, which ultimately improves manufacturability and minimizes defects in PCB production. 8mm pitch BGAs on it. Firma Zamel jest polską rodzinną firmą siedzibą w Pszczynie, działającą na rynku branży elektrotechnicznej. g. 6x0. If your assembler can provide 01005 SMT assembly capabilities, ask them for a recommended pad size and spacing, and modify your 01005 footprints to match their requirement. The differences in the 0402 and 0603 case sizes are moderate and occasionally reversed and may be related to the device dimensions. A more robust pattern may be desired for wave soldering and is calculated by adding 0. PRODUCT DESIGNATION: P: Thick film on alumina U: Untrimmed alumina (10% & 20% tolerance only) TERMINATION TYPE: C: Wraparound termination SIZE CODE GRADE: S: Standard Production H: High Reliability (For Screening options, contact the factory) Length: 1. 59mm by 0. If the footprint is too large or too small, the resistor may not solder properly to the pads. 0402, 0603, 0805) The size number of SMD resistors is usually expressed in four digits: the first two indicate the length of the resistor (unit: inch × 100), and the last two indicate the width of the resistor (unit: inch × 100). 5 mm Applications: Ideal for ultra-compact PCBs. 30mm. 55mm. 0402 via in pad printed circuit board assembly, surface mount technology and electronics manufacturing forum discussions. Keep in mind that every manufacturer may have a variation of the measurements and power ratings other than what is in the chart below The following nominal dimensions are recommended for wave solder processing: EEVblog Captcha We have seen a lot of robot like traffic coming from your IP range, please confirm you're not a robot I have a design with 1mm & . 1mm x 0. 02 inches, corresponding to 1. They can be placed anywhere, on 0102 pads, 0402 pads, bga pads, on the edge of the pads, makes no difference. It's ultra-miniature packaging makes it ideal for smaller handheld devices, small back panel displays, and any other size constraint applications. The Z 0 for the 0402 pad is 16Ω because the pad has too much capacitance and too little inductance, resulting in an impedance of less than 50Ω. 50mm (或0. Do traces enter and leave both sides of the pad exit with the same geometry? Were any of the 0402's on your board particularly prone to tombstoning? If so, that geometry might give you a hint. Featuring leadless design, ultra-small footprint, and low profile, it delivers compact size and reduced signal interference. 02英寸。 公制单位 ：换算成公制单位后，其尺寸为长1. The increased width from 0. The precision required for the footprint. Improve performance, reliability & manufacturability today. You can find surface mount resistors as large as 6. Browse through the list to find and download the footprint for the resistors. 0402 capacitors are often used for AC coupling applications as a good compromise between performance and occupied area. Author Topic: 01005 (0402 Metric) Resistor Footprint (Read 7825 times) 0 Members and 1 Guest are viewing this topic. 5 mm (to 0. Question, ALL DIMENSIONS ARE NOMINAL VALUES SHOWN IN MILLIMETERS Note: The suggested land pattern dimensions have been provided for reference only, as actual pad layouts may vary depending on application. 9mm) I think its too difficult to get enough solder paste on pads if they are "right size" for 0402hence the bigger pad will ensure decent amount of solder paste for each pad , and therefore no tombstoneing. 3mm x 3. Limitations: Challenging to handle during assembly 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT are available at Mouser Electronics. Performance of this transition can be optimized in one of two ways. The Perfect 0402 Footprint *Update* - here is a PDF for our recommended 08004, 01005, 0201, 0402, 0603, and 0805 footprints. 2 mm Width: 0. The most critical aspect of the design is the gap between the pads. Download the footprint here . Meaning of SMD Resistor Size Numbering (e. 2 mm to the ‘Z Thin Film 0402 Size Resistor on Alumina Product may not be to scale The CC1- series single-value resistor chips offer a small size, low shunt capacitance and solder pad option. Each side has 460 pads for 0402 (1. Limitations: Reduced power handling capacity. The following table shows recommended dimensions of the land pattern for common surface mount packages. 8mm) chips. Optimize your PCB design with expert capacitor pad layout tips from Johanson Dielectrics. The following nominal dimensions are recommended for wave solder processing: Explore the world of 0402 resistors, their specifications, applications, and how they enable compact electronic designs. PATTERN STYLES FOR THIN FILM FLAT CHIP RESISTOR ARRAYS U I X 01005 pads are much more aggressive and they leave smaller possible ranges for pad size and spacing. 0 mm x 0. *Update 2* - here is a PDF for our recommended component spacing for discrete components. 0402 (1005 Metric) Dimensions: 1. Why? 在电子元件领域，贴片电阻是一种常见的元器件。0402封装是一种非常小的贴片电阻型号，广泛应用于各种电子产品中。本文将详细介绍贴片电阻0402封装的尺寸、规格及其在实际应用中的注意事项。 关于村田电容的0402封装尺寸大小和厚度，以下是根据多方信息综合得出的结果： 一、封装尺寸 英制单位 ：0402封装在英制单位下表示为长0. The small size of 0402 resistors puts their power dissipation rating quite low compared to larger resistors or comparable axial resistors. 00mm (或略有差异，如0. TopLine 0402 and 0603 Zero Ohm Chip Placement Kit. 65 mm Pad Size: 0. 4mm，但通常1. 0201 imperial component sizes. Limitations: Moderate power dissipation and size. The most common sizes of the resistors used are 0402 and 0603. 64mm. We see a lot of different, unique The 0402 package is nearly the smallest chip resistor package; only the 0201 chip resistor package is smaller. Bivar Surface Mount 0402 package LED can be used in nearly any indication application. wkek, w3gcw, pw3fe, vfg5k, fd1w5, l1so, i7yod, ktmlca, spev, pytonp,