Effective August 2017 Technical Data DS4308 Supersedes March 2007 UP UNI-PAC™ drum core power inductors Applications • Buck or boost inductor • Workstations/servers • Desktop computer • DVD Players • Portable power devices • Base stations • Industrial power supplies • Output filter chokes • Test equipment instrumentation Product features Environmental Data • Maximum power density • Ideal for applications requiring low inductance • Storage temperature range (Component): -40 °C to +125 °C and high current in a miniature package • Current range from 0.47 A to 19.2 A • Operating temperature range: -40 °C to +125 °C • Inductance range from 0.470 uH to 1000 uH (ambient plus self-temperature rise) • Protective case eliminates core breakage • Solder reflow temperature: • Meets UL 94V-0 flammability standard J-STD-020 (latest revision) compliant • Ferrite core material

Technical Data DS4308 UP Effective August 2017 UNI-PAC™ drum core power inductors Product Specifications Part Inductance OCL(1) IRMS(2) ISAT(3) DCR(4) Number µH (rated) µH±20% (A) (A) Ohms max. UP1B-R47-R 0.47 0.569 6.0 7.7 0.0097 UP1B-1R0-R 1.0 1.20 4.4 5.3 0.0177 UP1B-1R5-R 1.5 1.61 4.2 4.5 0.0200 UP1B-2R2-R 2.2 2.62 3.1 3.5 0.0363 UP1B-3R3-R 3.3 3.79 2.9 3.0 0.0428 UP1B-4R7-R 4.7 5.15 2.2 2.6 0.0544 UP1B-6R8-R 6.8 6.87 1.7 2.2 0.0897 UP1B-100-R 10.0 11.00 1.5 1.9 0.1107 UP1B-150-R 15.0 16.00 1.2 1.5 0.1747 UP1B-220-R 22.0 23.50 1.0 1.2 0.2541 UP1B-330-R 33.0 36.00 0.82 0.99 0.3670 UP1B-470-R 47.0 48.50 0.72 0.87 0.4740 UP1B-680-R 68.0 73.52 0.58 0.67 0.7320 UP1B-101-R 100.0 112.67 0.47 0.53 1.11 UP1B-151-R 150.0 152.40 0.40 0.46 1.61 UP1B-221-R 220.0 223.10 0.36 0.38 1.96 UP1B-331-R 330.0 331.90 0.28 0.31 3.10 UP2B-R47-R 0.47 0.595 10.6 11.4 0.0049 UP2B-1R0-R 1.0 1.00 9.3 9.9 0.0065 UP2B-1R5-R 1.5 1.46 8.3 7.9 0.0081 UP2B-2R2-R 2.2 2.56 7.2 6.1 0.0107 UP2B-3R3-R 3.3 3.23 6.5 5.1 0.0128 UP2B-4R7-R 4.7 4.77 5.5 4.2 0.0165 UP2B-6R8-R 6.8 6.63 5.0 3.6 0.0202 UP2B-100-R 10.0 9.73 4.3 3.3 0.0267 UP2B-150-R 15.0 15.43 3.5 2.4 0.0410 UP2B-220-R 22.0 22.50 2.8 2.0 0.0617 UP2B-330-R 33.0 33.13 2.1 1.7 0.0917 UP2B-470-R 47.0 48.65 1.7 1.4 0.1388 UP2B-680-R 68.0 68.17 1.5 1.2 0.1787 UP2B-820-R 82.0 84.1 1.34 1.03 0.2235 UP2B-101-R 100.0 102.60 1.2 0.95 0.2707 UP2B-151-R 150.0 150 1.0 0.77 0.4100 UP2B-221-R 220.0 223 0.773 0.637 0.6717 UP2B-331-R 330.0 338 0.676 0.510 0.8783 UP2B-471-R 470.0 471 0.553 0.427 1.31 UP2B-681-R 680.0 700 0.452 0.355 1.97 UP2B-821-R 820.0 823 0.423 0.334 2.24 UP2B-102-R 1000.0 1005 0.369 0.300 2.96 UP3B-R47-R 0.47 0.452 16.0 25.1 0.0021 UP3B-1R0-R 1.0 1.34 12.5 15.3 0.0034 UP3B-1R5-R 1.5 2.08 10.0 12.0 0.0053 UP3B-2R2-R 2.2 3.01 9.2 10.2 0.0074 UP3B-3R3-R 3.3 3.96 8.0 9.3 0.0083 UP3B-4R7-R 4.7 5.00 6.5 7.7 0.0114 UP3B-6R8-R 6.8 7.70 5.8 6.2 0.0183 UP3B-100-R 10.0 11.00 4.3 5.2 0.0260 UP3B-150-R 15.0 16.38 3.9 4.3 0.0317 UP3B-220-R 22.0 23.93 3.1 3.7 0.0490 UP3B-330-R 33.0 33.85 2.4 3.0 0.0688 UP3B-470-R 47.0 51.00 1.9 2.4 0.1082 UP3B-680-R 68.0 69.50 1.6 2.0 0.1558 UP3B-101-R 100.0 101.40 1.4 1.8 0.2053 UP3B-151-R 150.0 152.9 1.2 1.4 0.2960 UP3B-331-R 330.0 332.80 0.75 0.98 0.7330 UP4B-R47-R 0.47 0.473 19.2 51.7 0.0019 UP4B-1R0-R 1.0 0.916 17.3 37.3 0.0023 UP4B-1R5-R 1.5 1.52 13.4 28.9 0.0039 UP4B-2R2-R 2.2 2.27 12.0 23.7 0.0048 UP4B-3R3-R 3.3 3.14 11.0 20.2 0.0057 UP4B-4R7-R 4.7 5.34 8.6 15.6 0.0093 UP4B-6R8-R 6.8 6.66 8.3 14.1 0.0100 UP4B-100-R 10.0 9.77 6.8 11.5 0.0150 UP4B-150-R 15.0 15.61 5.5 9.1 0.0230 UP4B-220-R 22.0 22.61 4.5 7.6 0.0340 UP4B-330-R 33.0 34.30 3.7 6.1 0.0520 UP4B-470-R 47.0 48.10 3.1 5.2 0.0740 UP4B-680-R 68.0 69.14 2.4 4.3 0.1200 UP4B-101-R 100.0 99.42 2.0 3.6 0.1700 UP4B-151-R 150.0 146.90 1.7 3.0 0.2392 UP4B-221-R 220.0 221.40 1.4 2.4 0.3571 UP4B-331-R 330.0 330.00 1.1 2.0 0.5800 UP4B-471-R 470.0 470.10 0.91 1.7 0.8330 Notes: (1) Open Circuit Inductance Test Parameters:1 00 kHz, .250 Vrms, 0.0 Adc. (3)Peak current for approximately 30% rolloff UP1B, 3B, 4B. 10% rolloff UP2B @ (2) RMS current for an approximate ∆T of 40 °C. at an ambient temperature +20 °C of +85 ˚C. (4) DCR limits +20 °C. 2 www.eaton.com/electronics

UP Technical Data DS4308 UNI-PAC™ drum core power inductors Effective August 2017 Dimensions- mm UP1B PCB PAD LAYOUT TOP VIEW 8.89 SCHEMATIC 8.89 Max 5.08 2R.4e2f FRONT VIEW 1 4.04 R Max 5.0 4.1 6M.1a0x UP1BXXXwllyy Max w 2 0.762 Min 1.9 COMPONENT VIEW UP2B PCB PAD LAYOUT TOP VIEW 14.0 SCHEMATIC 13.97 Max 9.4 4.22 FRONT VIEW 1 Ref 6.73 Max 1M0.a4x1 UP2BXXXwllyyR M6.a0x 7.3 w 2 0.762 Min 2.3 COMPONENT VIEW UP3B TOP VIEW PCB PAD LAYOUT 19.3 SCHEMATIC R SIDE VIEW 11.7 8m.1a3x 1 UP3BXXXwwllyy 2 1m3.a2x1 m6.a8x 8.7 1 12.70 2 3.8 19.30 max COMPONENT VIEW UP4B TOP VIEW PCB PAD LAYOUT 22.1 SCHEMATIC SIDE VIEW R 13.5 1m1.a1x8 1 UP4BXXXwwllyy 2 1m5.a0x0 7m8a7x 12.0 1 14.61 2 4.3 22.10 max COMPONENT VIEW Do not route traces or vias underneath inductor wwllyy = (date code) R = revision level xxx = Inductance value per family chart www.eaton.com/electronics 3

Technical Data DS4308 UP Effective August2017 UNI-PAC™ drum core power inductors Packaging information- mm UP1B 2.0 4.0 1.5Dia. A 1.75 1 7.5 16 9.3 ACTUAL SIZE 2 UNI-PAC 1B 4.4 2.3 A 5.6 6.4 12.0 SECTION A-A Direction of feed Parts packaged on 13" Diameter reel, 900 parts per reel. Dimensions in millimeters. UP2B 2.0 4.0 1.5 Dia. A 1.75 1 11.5 14.3 24 2 ACTUAL SIZE UNI-PAC 2B 5.4 5.1 A 6.8 10.7 SECTION A-A 16.0 Direction of feed Parts packaged on 13" Diameter reel, Dimensions in millimeters. 550 parts per reel. UP3B 2.0 4.0 1.5 Dia. A 1.75 1 14.2 19.6 28.4 32 2 ACTUAL SIZE UNI-PAC 3B 5.9 5.8 A 7.7 13.5 16.0 SECTION A-A Direction of feed Dimensions in millimeters. Parts packaged on 13" Diameter reel, 450 parts per reel. UP4B 2.0 4.0 1.5 Dia. A 1.75 1 14.2 22.3 28.4 32 2 ACTUAL SIZE 7.2 11.1 A UNI-PAC4B 9.0 15.3 24.0 SECTION A-A Direction of feed Parts packaged on 13" Diameter reel, Dimensions in millimeters. 275 parts per reel. 4 www.eaton.com/electronics

UP Technical Data DS4308 UNI-PAC™ drum core power inductors Effective August 2017 Inductance characteristics UP1B-1R0 UP1B-100 Typical Inductance & Energy vs Saturation Current Typical Inductance & Energy vs Saturation Current UP1B-470 UP2B-1R0 Typical Inductance & Energy vs Saturation Current Typical Inductance & Energy vs Saturation Current UP2B-100 UP2B-470 Typical Inductance & Energy vs Saturation Current Typical Inductance & Energy vs Saturation Current www.eaton.com/electronics 5

Technical Data DS4308 UP Effective August 2017 UNI-PAC™ drum core power inductors Inductance characteristics UP3B-1R0 UP3B-100 Typical Inductance & Energy vs Saturation Current Typical Inductance & Energy vs Saturation Current UP3B-470 UP4B-1R0 Typical Inductance & Energy vs Saturation Current Typical Inductance & Energy vs Saturation Current UP4B-100 UP4B-470 Typical Inductance & Energy vs Saturation Current Typical Inductance & Energy vs Saturation Current 6 www.eaton.com/electronics

UP Technical Data DS4308 UNI-PAC™ drum core power inductors Effective August 2017 Solder Reflow Profile TP T -5°C TTaabbllee 11 -- SSttaannddaarrdd SSnnPPbb SSoollddeerr ((TTcc)) C Max. Ramp Up Rate = 3°C/s tP Volume Volume Max. Ramp Down Rate = 6°C/s Package mm3 mm3 T Thickness <350 >_350 L Preheat t <2.5mm 235°C 220°C A >_2.5mm 220°C 220°C T e smax atur TTaabbllee 22 -- LLeeaadd ((PPbb)) FFrreeee SSoollddeerr ((TTcc)) mper Tsmin Volume Volume Volume e t Package mm3 mm3 mm3 T s Thickness <350 350 - 2000 >2000 <1.6mm 260°C 260°C 260°C 1.6 – 2.5mm 260°C 250°C 245°C >2.5mm 250°C 245°C 245°C 25°C Time 25°C to Peak Time Reference JDEC J-STD-020 Profile Feature Standard SnPb Solder Lead (Pb) Free Solder Preheat and Soak (cid:129)Temperature min.(Tsmin) 100°C 150°C (cid:129)Temperature max.(Tsmax) 150°C 200°C (cid:129)Time (Tsminto Tsmax) (ts) 60-120 Seconds 60-120 Seconds Average ramp up rate Tsmaxto Tp 3°C/ Second Max. 3°C/ Second Max. Liquidous temperature (TL) 183°C 217°C Time at liquidous (tL) 60-150 Seconds 60-150 Seconds Peak package body temperature (TP)* Table 1 Table 2 Time (tp)** within 5 °C of the specified classification temperature (Tc) 20 Seconds** 30 Seconds** Average ramp-down rate (Tpto Tsmax) 6°C/ Second Max. 6°C/ Second Max. Time 25°C to Peak Temperature 6 Minutes Max. 8 Minutes Max. *Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum. ** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum. Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also reserves the right to change or update, without notice, any technical information contained in this bulletin. Eaton Electronics Division 1000 Eaton Boulevard Cleveland, OH 44122 United States www.eaton.com/electronics © 2017 Eaton All Rights Reserved Eaton is a registered trademark. Printed in USA Publication No. DS4308 All other trademarks are property August 2017 of their respective owners.