WLPM444220LC WALSIN | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 6
Technical content
Page 1 of 6 ASC_WLPM444220 Series_V3.0 Nov. Y2017 WLPM444220*LC Series SMD Molded Power Inductors *Contents in this sheet are subject to change without prior notice.
Page 2 of 6 ASC_WLPM444220 Series_V3.0 Nov. Y2017
Features
- Shielded construction. 2. Ultra low buzz noise. 3. Low DCR/ µH. 4. Handles high transient current spikes without saturation. 5. Encapsulated body offers improved environmental protection and moisture resistance. 6. Higher dielectric withstanding voltage. 7. Corrosion resistant package. 8. RoHS Compliance.
Applications
- PDA/Notebook/Desktop/Server applications high current and low profile power supplier 2. High current POL converters. 3. Battery powered devices. SHAPE and DIMENSION MARKING AND DATE CODE Marking ex:1.0uH /barb4right1R0 Recommend Pattern UNIT: mm DIM. TOL. M1 4.45 ±0.25 M2 4.0 ±0.3 M3 1.8 ±0.2 M4 1.5 ±0.3 M5 0.8 ±0.3
Page 3 of 6 ASC_WLPM444220 Series_V3.0 Nov. Y2017
Ordering Information
Series Dimensions Thickness Tolerance Value Packing Code WL: Inductor SMD molded power inductor. 4.4 * 4.0mm 1.8mm M: ± 20% R10=0.10uH 1R0=1.0uH 100=10.0uH L=13” Reeled (Embossed tape)
Electrical Characteristics
WLPM444220*LC series TEST INSTRUMENT: CHROMA 16502 、Zentech1320+Zentech3305 RDC Maximum (m ΩΩ ΩΩ ) Walsin Part Number L(uH) Tolerance Measuring Frequency (kHz),0.5V TYP. MAX. Rated Current Typical (A) I sat Typical (A) (1). Test Freq : 100KHz , 0.5V (2). All test data is referenced to 25 ℃℃ ℃℃ ambient. (3). Operating Temperature Range -55 ℃℃ ℃℃ to +125 ℃℃ ℃℃. (4). Rated Current: DC current(A)that will cause an approximate △△ △△T of 40 ℃℃ ℃℃. (5). I sat: DC current(A)that will cause Lo to drop approximately 30%. (6). The part temperature(ambient +temp rise)should not exceed 125 ℃℃ ℃℃ under worst case operating conditions. Circuit design, component placement, PWB trace size and thickness, airflow and other cooling provisions all affect the part temperature Part temperature should be verified.
Page 4 of 6 ASC_WLPM444220 Series_V3.0 Nov. Y2017 RELIABILITY PERFORMANCE Reliability Experiment For Electrical Test Item Test Condition Standard Source Humidity Test +40 ℃℃ ℃℃± 2 ℃℃ ℃℃, humidity of 90% ± 5% (total 96 hours). MIL-STD-202G Method 103B Test Condition B High Temperature Test 2.Test time: 48±2hrs IEC 68-2 Test Condition B Low Temperature Test 2.Test time: 48±2hrs IEC 68-2 Test Condition A Thermal Shock +125 ℃℃ ℃℃±5 ℃℃ ℃℃ (30 minutes) ~ -40 ± 5 ℃℃ ℃℃ (30 minutes), temperature switch time: 5 minutes (total 50 cycles). MIL-STD-202G Method 107G Test Condition B- MIL-STD-202G Method 108A Test Condition B Reliability Experiment For Physical Test Item Test Condition Standard Source Vibration Test 10-55-10HZ, amplitude: 1.5mm, direction: X, Y, Z axes, each axis 2 hours (total 6 hours). MIL-STD-202G Method 201A Solder Heat Resistance Test IR/convection reflow:Peak Temp 250±5 ℃℃ ℃℃ for 5Sec in air, Through 2 Cycle. Temperature Ramp:+1~4° C/sec; Above1 83° C, must keep 90 s - 120 s MIL-STD-202G Method 210F Test Condition (Reflow) Solder Ability Test Soak in 245 ℃℃ ℃℃ solder pot of 3Sec, PAD must have 95% above coverage. J-STD-003B
Page 5 of 6 ASC_WLPM444220 Series_V3.0 Nov. Y2017 TYPICAL RoHS REFLOW PROFILE
Page 6 of 6 ASC_WLPM444220 Series_V3.0 Nov. Y2017 2.0±0.1 DIMENSIONS OF CARRIER TAPE (mm)
130 GRAMS IN THE ARROW
MAX. 560 (mm) MIN. 390 (mm) NO COMPONENTS START
165 TO 180°
MATERIAL: CARRIER TAPE REELS (mm) A N B φC φC P USER DIRECTION OF FEED E PLASTIC COVER TAPE 160 (mm) MIN NO COMPONENTS 1.75±0.1 W 4.0±0.1 COMPONENTS EMBOSSED CAVITY EMBOSSED CARRIER END
0.10 MAX
THICKNESS (t) BASE TAPE TOP COVER TAPE +0.1-0 φ1.5 ※※ ※※ 10 sprocket hole pitch cumulative tolerance ±± ±±0.20 Packaging UNIT : mm A B C E N P W t A0 B0 K0 Quantity per reel ：： ：：2K pcs