This series is currently available, Features but not recommended for new n Shielded construction designs. The newer SRP1038A n Unit height of 4.2 mm series is recommended. 2R2 n Inductance range: 0.15 to 15 μH 1725 n Current up to 34 A n RoHS compliant* SRP1040 Series - Shielded Power Inductors Electrical Specifications General Specifications Test Voltage .......................................1 V Inductance I rms I sat DCR Test Frequency .........................100 KHz Bourns Part No. L (μH) ±20 % (A) (A) (mΩ) Max. Reflow Soldering ..230 °C; 50 sec. max. SRP1040-R15M 0.15 34 40 1.3 Operating Temperature SRP1040-R20M 0.20 32 40 1.0 ................................-55 °C to +150 °C SRP1040-R36M 0.36 28 40 1.4 (Temperature rise included) Storage Temperature SRP1040-R39M 0.39 24 32 1.4 ................................-55 °C to +150 °C SRP1040-R47M 0.47 26 38 1.6 Resistance to Soldering Heat SRP1040-R50M 0.50 23 32 1.9 .............................+260 °C for 10 sec. SRP1040-R56M 0.56 25 36 1.9 Materials SRP1040-R68M 0.68 23 32 2.4 Core ..................................................Iron SRP1040-R75M 0.75 22 28 2.5 Wire ............................Enameled copper SRP1040-R80M 0.80 21 30 3.0 Terminal ........................................Cu/Sn SRP1040-1R0M 1.0 20 28 3.5 Rated Current .....Ind. drops 20 % at Isat SRP1040-1R2M 1.2 18 24 4.7 Temperature Rise .....40 °C at rated Irms Packaging .......900 pcs. per 13-inch reel SRP1040-1R5M 1.5 15 20 7.5 SRP1040-1R7M 1.7 15 18 7.5 Product Dimensions SRP1040-2R2M 2.2 12 17 8.6 11.8 4.2 SRP1040-2R5M 2.5 11.5 14 8.7 (0.465)MAX. (.165) SRP1040-3R3M 3.3 10 14 10 10.7 ± 0.5 MAX. 4.0 (0.421 ± 0.020) SRP1040-3R9M 3.9 9.0 15 12 (.157) MAX. SRP1040-4R7M 4.7 8.0 13 14 10.5 SRP1040-5R6M 5.6 7.0 12 16 (0.413) 2R2 MAX. SRP1040-6R8M 6.8 6.5 11 24 1725 SRP1040-8R2M 8.2 5.0 8.0 33 SRP1040-100M 10 5.0 9.0 35 SRP1040-150M 15 5.0 7.0 57 10.0 ± 0.5 (0.394 ± 0.020) Soldering Profile 275 275 260 °Cpeak <1>Maximum of 10 seconds <1>5 seconds maximum <1> 255 °C <1> 245 °C between +255 °C and +260 °C at +245 °C ure(°C) 127255 190°C220 °C 6m0asxeicmonudms R5 a°mCp/sDecoownnd ure(°C) 127255 (0.121.94 ±± 00..5020) 170 °C 183 °C perat 150 °C perat 150 °C (0.028.27 ±± 00..5020) 6m0asxeicmounmds RampDown m 125 m 125 5 °C/second e 120-150seconds e 120-150seconds T T 10secondsminimum Recommended Layout 10secondsminimum 75 75 Ramp Up Ramp Up 4.5 4 °C/secondmaximum 4 °C/secon1d2m.4aximum (0.488) (.177) 25 25 2.5 0 50 100 150 200 250 300 0 50 100 15(0.099) 200 250 300 Time (Seconds) Time (Seconds) 4.5 (.177) 5.4 1.5 (.213) (.060) MM DIMENSIONS: (INCHES) WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov Electrical Schematic *RoHS Directive 2015/863, Mar 31, 2015 and Annex. 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 o f this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

SRP1040 Series - Shielded Power Inductors L vs. I Charts SRP1040-R15M SRP1040-R20M SRP1040-R36M 0.3 100 0.25 100 1.0 100 90 0.9 90 Inductance (H)μ0000....01126284 24680000 Temperature Rise (°C) Inductance (H)μ00.0.001..5152 2345678100000000 Temperature Rise (°C) Inductance (H)μ00000000........12345678 1234567800000000 Temperature Rise (°C) 00 9 18 27 36 450 00 4 8 12 16 20 24 28 32 36 400 00 4 8 12 16 20 24 28 32 36 400 DC Current (A) DC Current (A) DC Current (A) SRP1040-R39M SRP1040-R47M SRP1040-R50M 0.6 100 1.0 100 0.7 100 0.9 90 Inductance (H)μ0000....12342468 24680000 Temperature Rise (°C) Inductance (H)μ00000000........12345678 1234567800000000 Temperature Rise (°C) Inductance (H)μ0000....12454826 24680000 Temperature Rise (°C) 0 0 0 0 0 0 0 7.6 15.2 22.8 30.4 38 0 4 8 12 16 20 24 28 32 36 40 0 7.2 14.4 21.6 28.8 36 DC Current (A) DC Current (A) DC Current (A) SRP1040-R56M SRP1040-R68M SRP1040-R75M 1.50 100 2.0 100 1.5 100 1.35 90 1.8 90 Inductance (H)μ00000011........1346790250505050 1234567800000000 Temperature Rise (°C) Inductance (H)μ00001111........24680246 1234567800000000 Temperature Rise (°C) Inductance (H)μ0001....3692 24680000 Temperature Rise (°C) 0 0 0 0 0 0 4 6 8101214161820222426283032343638 0 3 6 9 12 15 18 21 24 27 30 33 0 6.2 12.4 18.6 24.8 31 DC Current (A) DC Current (A) DC Current (A) SRP1040-R80M SRP1040-1R0M SRP1040-1R2M 1.0 100 2.0 100 3 100 0.9 90 1.8 90 Inductance (H)μ00000000........0135467820 4 8 12 16 20 24 28 3201234567800000000 Temperature Rise (°C) Inductance (H)μ00001111........2468024603 6 9 12 15 18 21 24 27 3001234567800000000 Temperature Rise (°C) Inductance (H)μ0112....062840 4.4 8.8 13.2 17.6 22024680000 Temperature Rise (°C) DC Current (A) DC Current (A) DC Current (A) SRP1040-1R5M SRP1040-1R7M SRP1040-2R2M 4.0 100 3 100 4.0 100 3.6 90 3.6 90 Inductance (H)μ00112223........48260482 1234567800000000 Temperature Rise (°C) Inductance (H)μ0112....6284 24680000 Temperature Rise (°C) Inductance (H)μ00112223........48260482 1234567800000000 Temperature Rise (°C) 0 0 0 0 0 0 0 2 4 6 8 10 12 14 16 18 20 22 0 4 8 12 16 20 0 2 4 6 8 10 12 14 16 18 20 22 24 DC Current (A) DC Current (A) DC Current (A) Specifications are subject to change without notice. Users should verifyS aRctPu1al0 d4e0v-i2ceR p5eMrformance in their specific applications. SRP1040-3R3M SRP1040-3R9M The p4.r0oducts described herein and this documen1t 0a0re subject to spe8c.0ific legal disclaimers as set forth on the las1t0 p0age of this docu6m.0ent, and at www.bourns.com/docs/legal/di1s0c0laimer.pdf. 7.2 90 Inductance (H)μ0123....8642 24680000 Temperature Rise (°C) Inductance (H)μ01234456........86420864 1234567800000000 Temperature Rise (°C) Inductance (H)μ1234....2468 24680000 Temperature Rise (°C) 0 0 0 0 0 0 0 48 1 2 16 0 2 4 6 8 10 12 14 16 0 3 6 9 12 15 DC Current (A) DC Current (A) DC Current (A) SRP1040-4R7M SRP1040-5R6M SRP1040-6R8M 8.0 100 15.0 100 12 100 Inductance (H)μ012344567.........864208642 123456789000000000 Temperature Rise (°C) Inductance (H)μ111134679023.........505050505 123456789000000000 Temperature Rise (°C) Inductance (H)μ 124680 123456789000000000 Temperature Rise (°C) 0 0 0 0 0 0 0 2 4 6 8 10 12 16 0 1 2 3 4 5 6 7 8 9 10 11 12 0 4 6 12 16 DC Current (A) DC Current (A) DC Current (A) SRP1040-8R2M SRP1040-100M SRP1040-150M 15.0 100 12.0 100 25 100 13.5 90 10.5 90 90 Inductance (H)μ1113467902........050505050 01234567800000000 Temperature Rise (°C) Inductance (H)μ134679......505050 2345678100000000 Temperature Rise (°C) Inductance (H)μ 1120505 1234567800000000 Temperature Rise (°C) 0 1 2 3 4 5 6 7 8 9 0 0 0 0 DC Current (A) 0 1 2 3 4 5 6 7 8 9 0 1.4 2.8 4.2 5.6 7.0 DC Current (A) DC Current (A) SRP1040-220M SRP1040-330M SRP1040-470M 35 100 50 100 70 100 90 90 90 Inductance (H)μ 1224187 1234567800000000 Temperature Rise (°C) Inductance (H)μ 23410000 1234567800000000 Temperature Rise (°C) Inductance (H)μ 24518264 1234567800000000 Temperature Rise (°C) 0 0 0 0 0 0 0 1.2 2.4 3.6 4.8 6.0 0 1 2 3 4 5 0 0.6 1.2 1.8 2.4 3.0 DC Current (A) DC Current (A) DC Current (A)

SRP1040-R15M SRP1040-R20M SRP1040-R36M 0.3 100 0.25 100 1.0 100 90 0.9 90 Inductance (H)μ0000....01126284 24680000 Temperature Rise (°C) Inductance (H)μ00.0.001..5152 2345678100000000 Temperature Rise (°C) Inductance (H)μ00000000........12345678 1234567800000000 Temperature Rise (°C) 00 9 18 27 36 450 00 4 8 12 16 20 24 28 32 36 400 00 4 8 12 16 20 24 28 32 36 400 DC Current (A) DC Current (A) DC Current (A) SRP1040-R39M SRP1040-R47M SRP1040-R50M 0.6 100 1.0 100 0.7 100 0.9 90 Inductance (H)μ0000....12342468 24680000 Temperature Rise (°C) Inductance (H)μ00000000........12345678 1234567800000000 Temperature Rise (°C) Inductance (H)μ0000....12454826 24680000 Temperature Rise (°C) 0 0 0 0 0 0 0 7.6 15.2 22.8 30.4 38 0 4 8 12 16 20 24 28 32 36 40 0 7.2 14.4 21.6 28.8 36 DC Current (A) DC Current (A) DC Current (A) SRP1040-R56M SRP1040-R68M SRP1040-R75M 1.50 100 2.0 100 1.5 100 1.35 90 1.8 90 Inductance (H)μ00000011........1346790250505050 1234567800000000 Temperature Rise (°C) Inductance (H)μ00001111........24680246 1234567800000000 Temperature Rise (°C) Inductance (H)μ0001....3692 24680000 Temperature Rise (°C) 0 0 0 0 0 0 4 6 8101214161820222426283032343638 0 3 6 9 12 15 18 21 24 27 30 33 0 6.2 12.4 18.6 24.8 31 DC Current (A) DC Current (A) DC Current (A) SRP1040-R80M SRP1040-1R0M SRP1040-1R2M 1.0 100 2.0 100 3 100 0.9 90 1.8 90 Inductance (H)μ00000000........0135467820 4 8 12 16 20 24 28 3201234567800000000 Temperature Rise (°C) Inductance (H)μ00001111........2468024603 6 9 12 15 18 21 24 27 3001234567800000000 Temperature Rise (°C) Inductance (H)μ0112....062840 4.4 8.8 13.2 17.6 22024680000 Temperature Rise (°C) DC Current (A) DC Current (A) DC Current (A) SRP1040-1R5M SRP1040-1R7M SRP1040-2R2M 4.0 100 3 100 4.0 100 3.6 90 3.6 90 Inductance (H)μ00112223........482604823S3R1P21 0- 420 m Smer iSeMs -D S 12345678T00000000hrTemperature Rise (°C)iimelmdeiInductance (H)μdn0112 g....6284P oPwoteern Itniodmucettoerrs 24680000 Temperature Rise (°C) Inductance (H)μ00112223........48260482 1234567800000000 Temperature Rise (°C) 0 0 0 0 0 0 0 2 4 6 8 10 12 14 16 18 20 22 0 4 8 12 16 20 0 2 4 6 8 10 12 14 16 18 20 22 24 L vs. I ChartsDC Current (A) DC Current (A) DC Current (A) SRP1040-2R5M SRP1040-3R3M SRP1040-3R9M 4.0 100 8.0 100 6.0 100 7.2 90 Inductance (H)μ0123....8642 24680000 Temperature Rise (°C) Inductance (H)μ01234456........86420864 1234567800000000 Temperature Rise (°C) Inductance (H)μ1234....2468 24680000 Temperature Rise (°C) 0 0 0 0 0 0 0 48 1 2 16 0 2 4 6 8 10 12 14 16 0 3 6 9 12 15 DC Current (A) DC Current (A) DC Current (A) SRP1040-4R7M SRP1040-5R6M SRP1040-6R8M 8.0 100 15.0 100 12 100 Inductance (H)μ012344567.........864208642 123456789000000000 Temperature Rise (°C) Inductance (H)μ111134679023.........505050505 123456789000000000 Temperature Rise (°C) Inductance (H)μ 124680 123456789000000000 Temperature Rise (°C) 0 0 0 0 0 0 0 2 4 6 8 10 12 16 0 1 2 3 4 5 6 7 8 9 10 11 12 0 4 6 12 16 DC Current (A) DC Current (A) DC Current (A) SRP1040-8R2M SRP1040-100M SRP1040-150M 15.0 100 12.0 100 25 100 13.5 90 10.5 90 90 Inductance (H)μ1113467902........050505050 01234567800000000 Temperature Rise (°C) Inductance (H)μ134679......505050 2345678100000000 Temperature Rise (°C) Inductance (H)μ 1120505 1234567800000000 Temperature Rise (°C) 0 1 2 3 4 5 6 7 8 9 0 0 0 0 DC Current (A) 0 1 2 3 4 5 6 7 8 9 0 1.4 2.8 4.2 5.6 7.0 DC Current (A) DC Current (A) SRP1040-220M SRP1040-330M SRP1040-470M 35 100 50 100 70 100 90 90 90 Inductance (H)μ 1224187 1234567800000000 Temperature Rise (°C) Inductance (H)μ 23410000 1234567800000000 Temperature Rise (°C) Inductance (H)μ 24518264 1234567800000000 Temperature Rise (°C) 0 0 0 0 0 0 0 1.2 2.4 3.6 4.8 6.0 0 1 2 3 4 5 0 0.6 1.2 1.8 2.4 3.0 DC Current (A) DC Current (A) DC Current (A) 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.

SRP1040 Series - Shielded Power Inductors Packaging Specifications 2.0 ± 0.5 330.0 (.079 ± .020) (13.00) DIA. THICKNESS 0.10 21.0 ± 0.8 13.5 ± 0.5 (.004) (0.53 ± .020) MAX. (.827 ± .031) DIA. EMBOSSED 75.0 ± 2.0 CAVITY (2.96 ± 0.08) 13.0 ± 0.5 DIA. (.512 ± .020) EMBOSSED CARRIER 26.0 - 0.00 (1.02 - 0.00) 1.5 ± 0.1 (0.059 ± 0.004) 4.0 ± 0.1 2.0 ± 0.1 DIA. 1.75 ± 0.1 0.35 ± 0.05 (0.157 ± 0.004) (0.079 ± 0.004) (.069 ± 0.004) (0.014 ± 0.020) 11.8 ± 0.1 2.2 ± 0.3 (0.465 ± 0.004) (.087 ± 0.012) 24.0 ± 0.3 (0.95 ± 0.012) 4.5 ± 0.1 (0.177 ± 0.004) (00.0.10506)DIA. (0.1662.90 ±± 00..0104) 10.5 ± 0.1 (0.413 ± 0.004) MM DIMENSIONS: (INCHES) REV. 06/19 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.

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