HMLQ32251B-1R0MS

CYNTEC CO., LTD. 乾坤科技股份有限公司 DOCUMENT : HMLQ32251B-000 REVISION : A1 PAGE : 1 OF 3 Power Choke Coil HMLQ32251B MS type  Features High performance (Isat) realized by metal dust core. Low profile：3.2mm x 2.5mm x 1.2mm Low loss realized with low DCR 100% lead (Pb) free meet RoHS standard  Application DC/DC converter for CPU in Notebook PC Cellular phones, LCD displays, HDDs, DVCs, DSCs, PDAs etc.. Thin type on-board power supply module for exchanger VRM for server  Outline Dimensions L A W B H  Code Dimensions (mm) L 3.2  0.2 W 2.5  0.2 T 1.2 Max. A 0.7  0.3 B 1.2  0.3 H 0 ~ +0.15 T Recommend Land Pattern Dimensions The customer shall determine the land dimensions shown below after confirming and safety. B A C A 1.2 B 1.0 C 3.5 Unit : mm Oct., 2019 CYNTEC CO., LTD. 乾坤科技股份有限公司  DOCUMENT : HMLQ32251B-000 REVISION : A1 PAGE : 2 OF 3 Specifications L0 Inductance ( H ) @ (0A) Typical Maximum HMLQ32251B-R47MS 0.47 18 22 5.8 5.2 8.2 7.0 HMLQ32251B-1R0MS 1.0 34 41 4.9 4.4 5.5 5.0 HMLQ32251B-1R5MS 1.5 50 60 3.6 3.3 4.5 4.0 HMLQ32251B-2R2MS 2.2 70 85 3.2 2.9 4.0 3.6 HMLQ32251B-4R7MS 4.7 162 195 1.7 1.55 2.25 2.05 Part Number Rdc ( m) Heat Rating Current DC Amps. Idc ( A ) Saturation Current DC Amps. Isat ( A ) Typical Typical Maximum Maximum *：If you require another part number please contact with us. **：Inductance Tolerance  20% Note 1.： All test data is referenced to 25℃ ambient. Note 2.： Test Condition:100KHz, 1.0Vrms Note 3.： Idc : DC current (A) that will cause an approximate △ T of 40℃ Note 4.： Isat : DC current (A) that will cause L0 to drop approximately 30% Note 5.： Operating Temperature Range -55℃ to + 125℃ Note 6.： The part temperature (ambient + temp rise) should not exceed 125℃ under the worst case operating conditions. Circuit design, component placement, PCB trace size and thickness, airflow and other cooling provision all affect the part temperature. Part temperature should be verified in the end application. Note 7.： The rated current as listed is either the saturation current or the heating current depending on which value is lower. Oct., 2019 CYNTEC CO., LTD. 乾坤科技股份有限公司 : A1 PAGE : 3 OF 3 60 0.30 INDUCTANCE(μH) 0.20 TEMP. RISE(℃) 40 20 0.10 0.00 2 3 1.80 4 5 6 7 DC BIAS(Amps) 8 9 HMLQ32251B-1R5MS 1.50 1.20 INDUCTANCE(μH) 0.60 TEMP. RISE (℃) 80 2.25 0 0.00 1.2 1.8 2.4 3.0 3.6 4.2 DC BIAS(Amps) 4.8 5.4 60 1.80 TEMP. RISE(℃) 2 3 4 5 DC BIAS(Amps) 6 7 8 100 HMLQ32251B-2R2MS 80 1.80 60 1.35 INDUCTANCE(μH) 0.90 TEMP. RISE(℃) 40 20 0.45 0 0.0 80 3.60 INDUCTANCE(μH) 0 1 0.5 1.0 1.5 2.0 2.5 3.0 DC BIAS(Amps) 3.5 4.0 4.5 100 4.50 2.70 20 0.00 6.0 HMLQ32251B-4R7MS 5.40 40 0.20 2.70 20 0.6 TEMP. RISE (℃) 100 40 0.30 0.0 0.40 0 60 0.90 INDUCTANCE(μH) 10 INDUCTANCE(μH) 1 60 0.60 0.00 0 0 80 0.80 TEMP. RISE (℃) 1.00 100 HMLQ32251B-1R0MS TEMP. RISE(℃) 80 INDUCTANCE(μH) 1.20 TEMP. RISE (℃) INDUCTANCE(μH) 0.40 100 TEMP. RISE(℃) HMLQ32251B-R47MS 0.50 INDUCTANCE(μH) REVISION Current Characteristic 0.60 INDUCTANCE(μH) : HMLQ32251B-000 40 20 0.90 0.00 TEMP. RISE(℃)  DOCUMENT 0 0.0 0.5 1.0 1.5 2.0 2.5 DC BIAS(Amps) 3.0 3.5 Oct., 2019