{"id":230603,"date":"2024-10-19T15:00:21","date_gmt":"2024-10-19T15:00:21","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-62490-22010\/"},"modified":"2024-10-25T09:16:20","modified_gmt":"2024-10-25T09:16:20","slug":"bs-en-62490-22010","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-62490-22010\/","title":{"rendered":"BS EN 62490-2:2010"},"content":{"rendered":"

This part of IEC 62490 provides the ESL measuring method for the surface mount capacitors for use in electronic equipment.<\/p>\n

The ESL measurement method can be applicable to the surface mount capacitors with the following properties, but not limited to these:<\/p>\n

    \n
  1. \n

    capacitance range: 10 \u03bcF to 1 000 \u03bcF;<\/p>\n<\/li>\n

  2. \n

    size: L<\/i> \u00d7 W<\/i> = 3,2 mm \u00d7 1,6 mm to 7,3 mm \u00d7 4,3 mm, H<\/i> = 4,0 mm;<\/p>\n<\/li>\n

  3. \n

    ESL range: 5 nH or less.<\/p>\n<\/li>\n<\/ol>\n

    \n

    NOTE The surface mount capacitors in this document are limited to capacitors with lead frame or with thin coated terminals, see Figure 1. The scope of this document does not include capacitors with face down terminals, see Figure 2.<\/p>\n<\/blockquote>\n

    PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
    6<\/td>\nEnglish
    CONTENTS <\/td>\n<\/tr>\n
    7<\/td>\nFOREWORD <\/td>\n<\/tr>\n
    9<\/td>\n1 Scope
    2 Normative references
    Figure 1 \u2013 Lead frame and thin coating types of surface mount capacitors and the specification of the dimensions (L, W, and H)
    Figure 2 \u2013 Surface mount capacitors with face down terminal <\/td>\n<\/tr>\n
    10<\/td>\n3 Terms and definitions
    4 Test fixture and compensation chip
    4.1 Test fixture
    Figure 3 \u2013 Test fixture and terminals of test fixture <\/td>\n<\/tr>\n
    11<\/td>\nFigure 4 \u2013 Connection diagram <\/td>\n<\/tr>\n
    12<\/td>\nFigure 5 \u2013 Sectional view of the test fixture with an inserted surface mount capacitor pressured to the terminals of the test fixture
    Figure 6 \u2013 Example of surface mount capacitor mounted on terminals of test fixture <\/td>\n<\/tr>\n
    13<\/td>\n4.2 The open, short, and load compensation chip
    Figure 7 \u2013 Front view of mounting position of objects on test fixture <\/td>\n<\/tr>\n
    14<\/td>\n5 Measuring method
    5.1 Measuring equipment
    5.2 Measurement conditions
    5.3 Measurement points
    5.4 Frequency and signal level
    Figure 8 \u2013 Measurement points <\/td>\n<\/tr>\n
    15<\/td>\n5.5 Measurement procedure
    Figure 9 \u2013 Open compensation-chip position <\/td>\n<\/tr>\n
    16<\/td>\nFigure 10 \u2013 Load compensation-chip position
    Figure 11 \u2013 Short compensation-chip position <\/td>\n<\/tr>\n
    17<\/td>\n6 Items to be indicated in the test result report <\/td>\n<\/tr>\n
    18<\/td>\nAnnex\u00a0A (informative) Theoretical ESL value of the short compensation chip
    Table A.1 \u2013 The calculation results of inductance of the short compensation chip <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

    ESL measuring method – Surface mount capacitors for use in electronic equipment<\/b><\/p>\n\n\n\n\n
    Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
    BSI<\/b><\/a><\/td>\n2010<\/td>\n20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":230609,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[563,2641],"product_tag":[],"class_list":{"0":"post-230603","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-31-060-01","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/230603","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/230609"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=230603"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=230603"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=230603"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}