Features n Shielded construction for low radiation n Metal powder core n High saturation current n Low buzz noise n AEC-Q200 compliant n RoHS compliant* and halogen free** 17.3 0.4 SRP8540A Series - Shielded Power Inductors (.681 .016) 16.9 0.3 (.666 .012) Electrical Specifications 25 C Additional Information 101 Click these links for more information: Inductance 1510 Irms SRF DCR DCR Isat 100 kHz / 1 V Bourns Q (A) (MHz) (mW) (mW) (A) Part Number Typ. 0 ~+ 0.25 Typ. Typ. Max. L Typ. Typ. 16.9 0.3 Tol. (%)(0 ~+ .010) 6.7 0.3 (.666 .012) (H) (.264 .012) PRODUCT TECHNICAL INVENTORY SAMPLES CONTACT SELECTOR LIBRARY SRP8540A-R22M2.1 0.3 0.22 20 10 132 1.6 1.76 31 60 (.083 .012) SRP8540A-R33M 0.33 20 10 90 2 2.2 30 55 General Specifications SRP8540A-R47M 0.47 20 10 69 2.6 2.86 28 40 SRP8540A-R56M 0.56 20 15 58 2.7 2.97 25 38 Operating Temperature ................................ -55 C to +150 C SRP8540A-R68M 0.68 20 15 56 3.1 3.41 23 36 (Temperature rise included) SRP8540A-R82M 0.82 20 15 46 3.7 4.1 21 32 11.9 0.3 Storage Temperature (.469 .012) SRP8540A-1R0M 1.0 20 20 35 4.5 4.95 18 29 ................................ -55 C to +150 C SRP8540A-1R5M 1.5 20 20 33 6.6 7.3 17 27 Rated Current SRP8540A-2R2M 2.2 20 20 27 10.8 11.9 16 25 ............. Inductance drops 30 % at Isat 1 Temperature Rise .... 40 C at rated Irms SRP8540A-3R3M 3.3 20 20 23 15 16.5 14 22 18.5 (.728) Moisture Sensitivity Level ......................1 SRP8540A-4R7M 4.7 20 20 17 26.8 29.5 8.5 19 ESD Classification (HBM)..................N/A SRP8540A-5R6M 5.6 20 20 15 30 35 7.5 17 Note 1: Circuit design, component, PCB trace size SRP8540A-6R8M 6.8 20 20 14 40 46 6.5 16.5 and thickness, airflow and other cooling provisions all SRP8540A-8R2M 8.2 20 20 13 44 51 6 16 affect the part temperature. Part temperature should be 12.5 12.2 verified in the end application. SRP8540A-100M 10 (.492) 20 20 10 53 61 5.6 10 (.480) SRP8540A-220M 22 20 20 9 100 120 3.9 8 Materials Core ...........................Metal alloy powder Schematic Recommended Layout Wire .............................Enameled copper Terminal Finish ...............................Ni/Sn 9.6 (.378) Packaging ........ 800 pcs. per 13-inch reel Product Dimensions 8.8 0.4 (.346 .016) How to Order 5.5 4.5 (.217) (.177) SRP8540A - 100 M R22 8.4 0.3 (.331 .012) Model 2035 MM DIMENSIONS: Value Code (see table) (INCHES) Tolerance Code 8.1 0.2 (.319 .008) 1.6 0.3 3.8 0.2 (.063 .012) (.150 .008) 5.0 0.3 (.197 .012) WARNING Cancer and Reproductive Harm www.P65Warnings.ca.gov MM * RoHS Directive 2015/863, Mar 31, 2015 and Annex. DIMENSIONS: (INCHES) ** 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. Users should verify actual device performance in their specific applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. *RoHS COMPLIANT, **HALOGEN FREE & AEC-Q200 COMPLIANT SRP8540A Series - Shielded Power Inductors Soldering Profile Profile Feature Pb Free Assembly 20~30 Sec. Preheat 250 T -5 C C - Temperature Min. (T ) 150 C smin MAX. RAMP UP RATE = 3 C/SEC. MAX. RAMP DOWN RATE = 6 C/SEC. - Temperature Max. (T ) 200 C smax 217 - Time(t ) from T to T 60-120 seconds s smin smax 60~150 PREHEAT AREA Sec. Ramp-up Rate (T to T ) 3 C/second max. L p 200 C Liquidous temperature (T ) 217 C L Time (t ) maintained above T 60-150 seconds L L 150C Peak package body temperature (T ) 250 C p 60~120 Sec. Time within 5 C of Actual Peak Temperature (t ) < 30 seconds p 25 Ramp-Down Rate (T to T ) 6 C/second max. p L Time 25 C to Peak Time 25 C to Peak Temperature 8 minutes max. 8 Minutes Max. Time (Seconds) REFLOW TIMES: 3 TIMES MAX. L vs. I Charts SRP8540A-R22M SRP8540A-R33M SRP8540A-R47M 0.30 100 0.50 100 0.65 100 0.24 80 0.40 80 0.52 80 0.18 60 0.30 60 0.39 60 0.12 40 0.20 40 0.26 40 0.06 20 0.10 20 0.13 20 0 0 0 0 0 0 0 13 26 39 52 65 0 12 24 36 48 60 0 9 18 27 36 45 DC Current (A) DC Current (A) DC Current (A) SRP8540A-R56M SRP8540A-R68M SRP8540A-R82M 0.80 100 0.90 100 1.20 100 0.64 80 0.72 80 0.96 80 0.48 60 0.54 60 0.72 60 0.32 40 0.36 40 0.48 40 0.16 20 0.18 20 0.24 20 0 0 0 0 0 0 0 8 16 24 32 40 0 8 16 24 32 40 0 7 14 21 28 35 DC Current (A) DC Current (A) DC Current (A) SRP8540A-1R0M SRP8540A-1R5M SRP8540A-2R2M 1.35 100 2.00 100 3.00 100 1.08 80 1.60 80 2.40 80 0.81 60 1.20 60 1.80 60 0.54 40 0.80 40 1.20 40 0.27 20 0.40 20 0.60 20 0 0 0 0 0 0 0 6.5 13.0 19.5 26.0 32.5 0 6 12 18 24 30 0 5.5 11.0 16.5 22.0 27.5 DC Current (A) DC Current (A) DC Current (A) Specifications are subject to change without notice. SRP8540A-3R3M SRP8540A-4R7M SRP8540A-5R6M Users should verify actual device performance in their specific applications. 4.50 100 6.50 100 7.50 100 The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf. 3.60 80 5.20 80 6.00 80 2.70 60 3.90 60 4.50 60 1.80 40 2.60 40 3.00 40 0.90 20 1.30 20 1.50 20 0 0 0 0 0 0 0 5.5 11.0 16.5 22.0 27.5 0 4.5 9.0 13.5 18.0 22.5 0 4 8 12 16 20 DC Current (A) DC Current (A) DC Current (A) SRP8540A-6R8M SRP8540A-8R2M SRP8540A-100M 9.50 100 11.50 100 14.50 100 7.60 80 9.20 80 11.60 80 5.70 60 6.90 60 8.70 60 3.80 40 4.60 40 5.80 40 1.90 20 2.30 20 2.90 20 0 0 0 0 0 0 0 3.5 7.0 10.5 14.0 17.5 0 3.5 7.0 10.5 14.0 17.5 0 2 4 6 8 10 DC Current (A) DC Current (A) DC Current (A) SRP8540A-220M 32.5 100 26.0 80 19.5 60 13.0 40 6.5 20 0 0 0 1.8 3.6 5.4 7.2 9.0 DC Current (A) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Temperature (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Inductance (H) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C) Temperature Rise (C)