T PL IA N M CO *R oH S Features Applications Semi-shielded construction DC/DC converters Low profile: 1.2 mm Notebook computers Inductance range: 0.47 to 22 H Digital video cameras Rated current up to 3.2 A HDDs RoHS compliant* and halogen free** Cellphones Televisions, LCD displays SRN4012T Series - Semi-shielded Power Inductors Electrical Specifications @ 25 C Inductance @ 100 KHz / 1 V General Specifications L (H) Tol. % Q (Min.) @ 100 kHz / 1V SRN4012T-R47M 0.47 20 6 140 0.025 3.2 4 SRN4012T-1R0M 1.0 20 6 100 0.042 2.2 2.8 SRN4012T-1R5M 1.5 20 6 90 0.05 2 2.2 SRN4012T-2R2M 2.2 20 6 70 0.06 1.9 1.65 SRN4012T-3R3M 3.3 20 6 60 0.07 1.7 1.4 SRN4012T-4R7M 4.7 20 6 45 0.095 1.5 1.2 SRN4012T-6R8M 6.8 20 6 35 0.125 1.3 0.9 SRN4012T-100M 10 20 10 30 0.18 1.1 0.8 SRN4012T-150M 15 20 10 24 0.26 0.75 0.65 SRN4012T-220M 22 20 10 18 0.4 0.62 0.5 Bourns Part No. SRF (MHz) Typ. DCR () 20 % Irms (A) Isat (A) Soldering Profile Operating Temperature ................................. -40 C to +125 C (Temperature rise included) Storage Temperature .. -40 C to +125 C Resistance to Solder Heat ...............................+260 C for 10 sec. Temperature Rise .....40 C at rated Irms Rated Current ............ Inductance drops 30 % at Isat Materials Core ..............................................Ferrite Wire ............................Enameled copper Terminal Finish ...................................Sn Coating .................Magnetic epoxy resin Packaging ..... 4500 pcs. per 13-inch reel Product Dimensions Preheating Soldering Natural Cooling TP (260 C / 10 Sec. Max.) 1.2 (.047) MAX. 4.0 0.2 (.157 .008) Temperature (C) tp (245 C, 20~40 Sec.) 200 C 150C 4.0 0.2 (.157 .008) 217 C 60~150 Sec. 60~180 Sec. 25 REF. 480 Sec. Max. 1.1 (.043) Time (Seconds) Electrical Schematic How to Order SRN4012T - R47M Model Value Code (see table) 1.1 REF. (.043) 2.5 (.098) REF. Recommended Layout 4.2 (.165) 4.2 (.165) *RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011. **Bourns follows the prevailing definition of "halogen free" in the industry. Bourns considers a product to be "halogen free" if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. 1.2 (.047) DIMENSIONS: MM (INCHES) SRF0504 Filter SRN4012TSeries Series- Line - Semi-shielded Power Inductors L vs. IDC SRN4012T-R47M SRN4012T-1R0M 2.0 0.4 0.2 SRN4012T-1R5M 2.5 2.0 1.5 Inductance (H) 0.6 Inductance (H) Inductance (H) 0.8 1.0 0.5 1.5 1.0 0.5 0 0 0 1 2 3 4 0 5 1 2 SRN4012T-2R2M 2 1 0 0.7 1.4 2.1 3.0 1.5 0 2 0.5 1.0 SRN4012T-6R8M 1.5 4 6 4 2 0 2.0 0 0.5 1.0 1.5 2.0 DC Current (A) SRN4012T-100M 20 3 SRN4012T-4R7M DC Current (A) SRN4012T-150M 20 15 6 3 0 0.4 0.8 1.2 1.6 DC Current (A) 15 Inductance (H) 9 Inductance (H) Inductance (H) 1 8 0 2.8 0 10 5 15 10 5 0 0 0 0.3 0.6 DC Current (A) 0.9 1.2 0 0.2 0.4 0.6 0.8 1.0 DC Current (A) SRN4012T-220M 40 Inductance (H) 0 DC Current (A) 4.5 DC Current (A) 12 0 5 Inductance (H) 3 0 4 SRN4012T-3R3M 5.0 Inductance (H) Inductance (H) 4 3 DC Current (A) DC Current (A) 30 20 10 0 0 0.2 0.4 0.6 0.8 1.0 DC Current (A) Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. SRF0504 Filter SRN4012TSeries Series- Line - Semi-shielded Power Inductors Packaging Specifications 12.0 1.5 (.472 .059) 2.0 0.5 (.079 .020) 13.5 0.5 (.531 .020) 13.2 0.5 (.520 .020) DIA. 330 0.5 (12.99 .020) DIA. 100.0 0.5 (3.937 .020) R 10.5 R (.413) 0.5 R (.020) 1.8 (.071) 120 4.0 0.1 (.157 .004) 2.0 0.05 (.079 .002) 0.25 0.05 (.010 .002) 4.35 0.1 (.171 .004) 12.0 0.1 (.472 .004) BOTTOM VIEW 8.0 0.1 (.315 .004) 1.55 0.1 (.061 .004) 4.50 0.1 (.177 .004) USER DIRECTION OF FEED QTY: 4500 PCS. PER REEL DIMENSIONS: MM (INCHES) Asia-Pacific: Tel: +886-2 2562-4117 * Fax: +886-2 2562-4116 EMEA: Tel: +36 88 520 390 * Fax: +36 88 520 211 The Americas: Tel: +1-951 781-5500 * Fax: +1-951 781-5700 www.bourns.com REV. 05/15 Specifications are subject to change without notice. The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. Users should verify actual device performance in their specific applications. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Bourns: SRN4012T-1R5M SRN4012T-3R3M SRN4012T-1R0M SRN4012T-100M SRN4012T-R47M SRN4012T-6R8M SRN4012T-4R7M SRN4012T-150M SRN4012T-2R2M SRN4012T-220M