WLFM201209M4R7PC

Approval Sheet WLFM_C Multi-Layer Power Inductor *Contents in this sheet are subject to change without prior notice. Page 1 of 7 ASC_WLFM_C Series Jul.2020 Approval Sheet Features 1. General purpose chip ferrite power inductor for high integration electronics device. 2. Ceramic structure provides high reliability、high productivity. 3. Low DC resistance with high current. 4. RoHS compliance. Applications 1. DC line filter, DC/DC inductor. 2. Suitable for DVD,DSC,PND,PC,NB,Power Line. Shape and Dimension L T W B Unit: mm (inches) WLFM B L W T WLFM201209 2.00±0.20 1.25±0.20 0.90±0.10 0.50±0.30 WLFM201609 2.00±0.20 1.60±0.20 0.90±0.10 0.50±0.30 WLFM252009 2.50±0.20 2.00±0.20 0.90±0.10 0.50±0.30 Series (Min/Max) Ordering Information WL FM 2012 Product Code Series Dimensions WL: Inductor Multilayer 2012:EIA 0805 2016:EIA 0806 2520:EIA 1008 Page 2 of 7 09 Thickness 09= 0.9mm M R47 P Tolerance Value Packing Code M: ± 20% R47=0.47uH P=7” Reeled (Embossed tape) 2R2=2.2uH ASC_WLFM_C Series C C General Jul.2020 Approval Sheet Electrical Characteristics WLFM_C Series Walsin Part Number L(uH) Inductance Tolerance Test Freq (MHz) RDC DC Resistance (Ω Ω) Max. Rated Current (mA) SRF (MHz) WLFM201209M1R0PC 1.00 ±20% 1 0.10 1100 90 WLFM201209M2R2PC 2.20 ±20% 1 0.17 900 70 WLFM201209M3R3PC 3.30 ±20% 1 0.20 800 50 WLFM201209M4R7PC 4.70 ±20% 1 0.23 800 40 Walsin Part Number L(uH) Inductance Tolerance Test Freq (MHz) RDC DC Resistance (Ω Ω) Max. Rated Current (mA) SRF (MHz) WLFM201609M2R2PC 2.20 ±20% 1 0.12 1100 40 WLFM201609M4R7PC 4.70 ±20% 1 0.16 900 20 Walsin Part Number L(uH) Inductance Tolerance Test Freq (MHz) RDC DC Resistance (Ω Ω) Max. Rated Current (mA) SRF (MHz) WLFM252009MR47PC 0.47 ±20% 1 0.04 1800 100 WLFM252009M1R0PC 1.00 ±20% 1 0.055 1600 60 WLFM252009M1R5PC 1.50 ±20% 1 0.07 1500 50 WLFM252009M2R2PC 2.20 ±20% 1 0.08 1300 40 WLFM252009M3R3PC 3.30 ±20% 1 0.10 1200 30 WLFM252009M4R7PC 4.70 ±20% 1 0.11 1100 25 WLFM252009M6R8PC 6.80 ±20% 1 0.20 1100 25 *1：For special part number which is not shown in the above table, please refer to appendix. *2：Apply DC 0.4 ~ 0.6A to chip for 1 ~ 3 sec. before to measure inductance. Test Instrument： ： •HP4291B-RF Impedance / Material Analyzer •HP4338A/B Milliohm meter •Test Frequency : 1MHz / OSC Level : 100mV Page 3 of 7 ASC_WLFM_C Series Jul.2020 Approval Sheet General Technical Data Operating temperature range : - 40℃ ~ +85℃ Storage Condition : Less than 40℃ and 70% RH Storage Time : 12 months Max. Soldering method : Reflow Land Patterns for Reflow Soldering Size(mm) A B C 2012 1.0 ~ 1.2 3.0 ~ 4.0 0.8 ~ 1.1 2016 1.0 ~ 1.2 3.0 ~ 4.0 1.0 ~ 1.5 2520 1.2~1.5 3.5~4.0 1.5~2.0 Page 4 of 7 ASC_WLFM_C Series Jul.2020 Approval Sheet Reliability and Test Conditions Test item Test condition Criteria 1.More than 95 % of terminal electrode should be covered with new solder Resistance to Solder Heat Solder temperature : 260 ± 5℃ 2.No mechanical damage Flux : Rosin 3.Inductance value should be within ± 20 % of the initial value DIP time : 10 ± 1 sec * Apply DC 0.4 ~ 0.6A to chip for 1 ~ 3 sec. before to measure inductance. Solder temperature : 235 ± 5℃ Solderability Flux : Rosin 3. DIP time : 5 ± 1 sec Adhesive Test 1. More than 95 % of terminal electrode should be covered with new solder 2. No mechanical damage Reflow temperature : 245℃ It shall be Soldered on the substrate applying direction 1. No mechanical damage parallel to the substrate 2. Soldering the products on PCB Apply force(F) : 5 N after the pulling test force > 5 N Test time : 10 sec Temperature:-40 ~ 85℃ For 30 minutes each Temperature Cycle Cycle: 100 cycles Measurement:At ambient temperature 24 hours after test completion 1.No mechanical damage 2.Inductance should be within ±20% of the initial value * Apply DC 0.4 ~ 0.6A to chip for 1 ~ 3 sec. before to measure inductance. 1. No mechanical damage Temperature: 85 ± 5℃ High Temperature Resistance Humidity Testing time: 1000 hrs Measurement: at ambient temperature 24 hours after test completion * Apply DC 0.4 ~ 0.6A to chip for 1 ~ 3 sec. before to measure inductance. Temperature: 40℃ ± 2℃ 1.No mechanical damage Humidity: 90-95 % RH 2.Inductance should be within ±20% of the initial value Testing time: 1000 hrs Measurement:At ambient temperature 24 hours after test completion At ambient temperature & humidity Rated Current Page 5 of 7 2. Inductance should be within ±20% of the initial value Testing time:5 minutes ( under full rated current ) ASC_WLFM_C Series * Apply DC 0.4 ~ 0.6A to chip for 1 ~ 3 sec. before to measure inductance. ： WLFM product surface temp below room temperature plus 40℃ Jul.2020 Approval Sheet Tape and Reel Specifications Plastic Carries(E) Paper Carrier(P) Taping Dimensions (mm) Symbol W P E F D D1 Po 10Po P2 Ao Bo Ko(T) t Page 6 of 7 2012 E 8.00 ± 0.10 4.00 ± 0.10 1.75 ± 0.10 3.50 ± 0.10 1.55 ± 0.05 1.00 ± 0.05 4.00 ± 0.10 40.0 ± 0.20 2.00 ± 0.10 1.40 ± 0.10 2.30 ± 0.10 1.13 ± 0.10 0.22 ± 0.05 2016 E 8.00 ± 0.10 4.00 ± 0.10 1.75 ± 0.10 3.50 ± 0.10 1.55 ± 0.05 1.00 ± 0.05 4.00 ± 0.10 40.0 ± 0.20 2.00 ± 0.10 1.80 ± 0.10 2.20 ± 0.10 1.15 ± 0.10 0.22 ± 0.05 2520 E 8.00 ± 0.10 4.00 ± 0.10 1.75 ± 0.10 3.50 ± 0.10 1.55 ± 0.05 1.00 ± 0.05 4.00 ± 0.10 40.0 ± 0.20 2.00 ± 0.10 2.25 ± 0.10 2.80 ± 0.10 1.35 ± 0.10 0.22 ± 0.05 ASC_WLFM_C Series Jul.2020 Approval Sheet Reel Dimensions 7” Reel Packaging Quantity PART SIZE (EIA SIZE) Qty.(pcs) BOX 2012 (0805) 3,000 2016 (0806) 3,000 2520 (1008) 3,000 5 reels / inner box 5 reels / inner box 5 reels / inner box Recommended Soldering Conditions Page 7 of 7 ASC_WLFM_C Series Jul.2020