Revised 2013/02/04 GLMH Series Liqualloy Power Inductor TM Technical Data Sheet http://www.alpsgd.com/eng/index.html Revised 2013/02/04 Specification Liqualloy Power Inductor GLMH Series TM Features 7.5X6.5mm square and 3.0mm height Adopt LiqualloyTM, a low-loss material developed by Alps Low core loss even in high-frequency switching operations Narrow DCR tolerance Optimized for high currents (low DCR) Contributes to smaller and more efficient power supplies Operating Temperature : -20 ~ +125 (Including self temperature rise) RoHS compliant Application DC/DC converters for notebook PCs and servers, etc. POLPoint of Loadpower supplies Outer Appearance of Liqualloy Inductor TM Rated Current Inductance DC Resistance* Saturation Current L/L=30% Heat Rating Current T=40 (H) at 100kHz (m) (A) Max. (Typ.) (A) Max. (Typ.) GLMHR1103A 0.11 20% 0.57 5% 25 (28) 28 (30) GLMHR2303A 0.23 20% 1.10 5% 18 (20) 22 (24) Part No. measured under 20. 02 http://www.alpsgd.com/eng/index.html Revised 2013/02/04 Specification Liqualloy Power Inductor GLMH Series TM Outline Dimensions and Schematics Tolerance: 0.2 Unit: mm Recommend Land Pattern Dimensions A B A 4 B 3.5 C 8 C Unitmm 03 http://www.alpsgd.com/eng/index.html Revised 2013/02/04 DC bias & Q-f Characteristics Liqualloy Power Inductor GLMH Series TM 0.30 0.11H 0.23H 0.25 L ( H) 0.20 0.15 0.10 0.05 0.00 0 10 20 30 40 DC current (A) 200 160 0.11H 0.23H Q 120 80 40 0 10 100 1000 10000 Frequency (kHz) 04 http://www.alpsgd.com/eng/index.html Revised 2013/02/04 L-f characteristics & Temperature rise (T) dependence on Load Current Liqualloy Power Inductor GLMH Series TM 0.30 0.25 L ( H) 0.20 0.15 0.10 0.11H 0.23H 0.05 0.00 10 100 1000 10000 Frequency (kHz) 100.0 0.11H () 80.0 0.23H 60.0 40.0 20.0 0.0 0 10 20 30 40 50 DC Current (A) 05 http://www.alpsgd.com/eng/index.html Revised 2013/02/04 Packing Unreeling direction Unitmm Reel Size A B1 Tape Size QNT B2 C D E F G H I GLMC/GLMH 330 17.5 21.5 16 7.5 6.8 7.8 3.3 0.4 12 1000 GLMD 330 25.4 29.4 24 11.5 10.5 12.1 4.3 0.4 16 1000 06 http://www.alpsgd.com/eng/index.html Revised 2013/02/04 Attention Precautions when handling our products 1. For the export of products which are controlled items subject to foreign and domestic export laws and regulations, you must obtain approval and/or follow the formalities of such laws and regulations. 2. Products must not be used for military and/or antisocial purposes such as terrorism, and shall not be supplied to any party intending to use the products for such purposes. 3. Unless provided for otherwise, the products have been designed and manufactured for application in equipment and devices which are sold to end users in the market, including audio-visual (AV) equipment, electrical home appliances, office machines, information and communication equipment, and amusement equipment. The products are not intended for use in, and must not be used for, any application for nuclear equipment, driving equipment for aerospace or any other unauthorized use. With the exception of the abovementioned prohibited applications, please contact an Alps sales representative and/or evaluate the total system regarding applicability for applications involving high levels of safety and liability such as medical equipment, burglar alarm equipment, disaster prevention equipment and undersea equipment. Please also incorporate fail-safe design, protection and redundant circuitry, malfunction protection, and/or fire protection into the complete system to ensure safety and reliability of the total system. 4. Before using products which were not specifically designed for use in automotive applications, please contact an Alps sales representative. Cautions regarding this technical data sheet 1. The specifications herein are an overview of the specifications. Obtain official specifications before use. 2. The colors of the products this technical data sheet may slightly differ from those of the actual products. 3. The external appearance, functions and other specifications herein may be discontinued without prior notice. Inquiries about Products Products Information Center +81 (3) 5499-8154 Products Information Site Http://www.alps.com/products/e/ Development, Production Sales 1-7, Yukigaya-otsukamachi, Ota-ku, Tokyo, Japan 145-8501 07 http://www.alpsgd.com/eng/index.html Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: ALPS: GLMHR2303A GLMHR1103A GLMCR4701B