CTX01-18738-R

Technical Data 4410 Effective November 2015 Supersedes May 2011 CTX01-18738-R High current, high frequency power inductors Applications • Voltage Regulator Module (VRM) • Multi-phase and Vcore regulators • Point-of-load modules • Desktop and server VRMs and EVRDs • Base station equipment • Battery power systems • Graphics cards • Data networking and storage systems Environmental Data Description • High current carrying capacity, low core losses • Tight tolerance DCR for sensing circuits • 11 x 8.0mm footprint surface mount package in a 7.5mm height • Frequency range up to 2MHz • Halogen free, lead free, RoHS compliant • Storage temperature range: -40°C to +125°C • Operating temperature range: -40°C to +125°C (ambient plus self-temperature rise) • Solder reflow temperature: J-STD-020D compliant HALOGEN Pb HF FREE CTX01-18738-R High current, high frequency power inductors  Technical Data 4410 Effective November 2015 Product Specifications Part Number6 OCL1 (nH) ±10% FLL2 (nH) minimum Irms3 (amps) Isat14 (amps) Isat25 (amps) DCR (mΩ) @20°C CTX01-18738-R 210 151 50 55 45 0.29 ± 5% 1.Open Circuit Inductance (OCL) Test Parameters: 300kHz, 0.10Vrms, 0.0Adc @ 25°C. 2. Full Load Inductance (FLL) Test Parameters: 300kHz, 0.10Vrms, Isat1 @ 25°C. 3. Irms: DC current for an approximate temperature rise of 20°C without core loss. Derating is necessary for AC currents. PCB layout, trace thickness and width, air-flow and proximity of other heat generating components will affect the temperature rise. It is recommended that the temperature of the part not exceed 125°C under worst case operating conditions verified in the end application. 4. Isat1: Peak current for approximately 20% rolloff at +25°C. 5. Isat2: Peak current for approximately 20% rolloff at +125°C. 6. Part Number Definition: CTX01-18738-R - CTX01-18738 = Product code and size - “-R” suffix = RoHS compliant Dimensions (mm) ± ± 6.70 typ. ± Part marking: CTX01-18738, wwllyy = Date Code, R = Revision Level All soldering surfaces must be coplanar within 0.102 millimeters. Tolerances are ±0.1 millimeters unless stated otherwise. The DCR is measured from point “a” to point “b” Packaging information (mm) Temperature rise vs. total loss Temperature Rise (°C) 60 50 40 30 20 10 0 0.0 0.5 1.0 1.5 Total Loss (W) 2 www.eaton.com/elx 2.0 2.5 CTX01-18738-R High current, high frequency power inductors  Technical Data 4410 Effective November 2015 Core loss Core Loss vs. Ip-p 500kHz 1MHz 300kHz 10 200kHz 100kHz Core Loss (W) 1 0.1 0.01 0.001 0.0001 0.00001 1 10 100 Ip-p (Amps) Inductance characteristics % of OCL vs. Isat1 100.0% 90.0% 80.0% 70.0% % of OCL 60.0% 50.0% -40°C +25°C +125°C 40.0% 30.0% 20.0% 10.0% 0.0% 0 3 www.eaton.com/elx 10 20 30 40 Isat1 (Amps) 50 60 70 80 CTX01-18738-R High current, high frequency power inductors Technical Data 4410 Effective November 2015  Solder reflow profile TP TC -5°C tP Max. Ramp Up Rate = 3°C/s Max. Ramp Down Rate = 6°C/s Temperature TL Preheat A T smax t Table 1 - Standard SnPb Solder (Tc) Package Thickness Volume mm3