LMDH74T LEIDITECH

Document overview

  • Manufacturer or author: Provided By www.digicamel.com(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 10

Technical content

1 Scope:

2 Part Numbering:

3 Rating:

２０℃～２５℃ R.H.６５％(In Tape & Reel Condition)

4 Marking:

5 Standard Testing Condition

Temperature Ordinary Temperature(15 to 35 Ordinary Humidity(25 to 85% RH) 20±2 Humidity 60 to 70 % RH This specification applies to SMD Shielded Power Choke Operating Temperature: －４０℃～１０５℃(Including self - temperature rise) Storage Temperature: Unless otherwise specified LMDH47T Series LMDH LMDH74T-100M-N Rev 2.0 : www.leiditech.com 12.01.2019 1/10

6 Configuration and Dimensions:

7 Electrical Characteristics:

Inductance Test Freq. RDC Isat Tolerance Marking (uH ) (Ω)Max. (A) LMDH74T-1R5□-N 1.5 1 kHz,1 V 0.02 5 M 1R5 LMDH74T-1R8□-N 1.8 1 kHz,1 V 0.025 4 M 1R8 LMDH74T-2R2□-N 2.2 1 kHz,1 V 0.025 3.5 M,T 2R2 LMDH74T-2R7□-N 2.7 1 kHz,1 V 0.03 3.5 M,T 2R7 LMDH74T-3R3□-N 3.3 1 kHz,1 V 0.035 3.5 M,T 3R3 LMDH74T-3R6□-N 3.6 1 kHz,1 V 0.035 3.2 M,T 3R6 LMDH74T-4R7□-N 4.7 1 kHz,1 V 0.035 3 M,T 4R7 LMDH74T-6R8□-N 6.8 1 kHz,1 V 0.045 2.5 M 6R8 LMDH74T-100□-N 10 1 kHz,1 V 0.049 1.84 M 100 LMDH74T-120□-N 12 1 kHz,1 V 0.058 1.71 M 120 LMDH74T-150□-N 15 1 kHz,1 V 0.081 1.47 M 150 LMDH74T-180□-N 18 1 kHz,1 V 0.091 1.31 M 180 LMDH74T-220□-N 22 1 kHz,1 V 0.11 1.23 M 220 LMDH74T-270□-N 27 1 kHz,1 V 0.15 1.12 M 270 LMDH74T-330□-N 33 1 kHz,1 V 0.17 0.96 M 330 LMDH74T-390□-N 39 1 kHz,1 V 0.23 0.91 M 390 LMDH74T-470□-N 47 1 kHz,1 V 0.26 0.88 M 470 LMDH74T-560□-N 56 1 kHz,1 V 0.35 0.75 M 560 LMDH74T-680□-N 68 1 kHz,1 V 0.38 0.69 M 680 LMDH74T-820□-N 82 1 kHz,1 V 0.43 0.61 M 820 LMDH74T-101□-N 100 1 kHz,1 V 0.61 0.6 M 101 LMDH74T-121□-N 120 1 kHz,1 V 0.66 0.52 M 121 LMDH74T-151□-N 150 1 kHz,1 V 0.88 0.46 M 151 LMDH74T-181□-N 180 1 kHz,1 V 0.98 0.42 M 181 LMDH74T-221□-N 220 1 kHz,1 V 1.17 0.36 K,M 221 NOTE: □-tolerance K=±10% / M=±20% / T=±30% 1.Operating temperature range － ４ ０ ℃ ～ １ ０ ５ ℃ (Including self - temperature rise) 2.Isat for Inductance drop 35% from its value without current. "-N" FOR COMPLETELY LEAD FREE TYPE(INCLUDING FERRITE BODY & SOLDER) Part No. LMDH74T Series Rev 2.0 : www.leiditech.com 12.01.2019 2/10 LMDH74

Inductance Test Freq. RDC Isat Tolerance Marking (uH ) (Ω)Max. (A) LMDH74T-271□-N 270 1 kHz,1 V 1.64 0.34 K,M 271 LMDH74T-331□-N 330 1 kHz,1 V 1.86 0.32 K,M 331 LMDH74T-391□-N 390 1 kHz,1 V 2.85 0.29 K,M 391 LMDH74T-471□-N 470 1 kHz,1 V 3.01 0.26 K,M 471 LMDH74T-561□-N 560 1 kHz,1 V 3.62 0.23 K,M 561 LMDH74T-681□-N 680 1 kHz,1 V 4.63 0.22 K,M 681 LMDH74T-821□-N 820 1 kHz,1 V 5.2 0.2 K,M 821 LMDH74T-102□-N 1000 1 kHz,1 V 6 0.18 K,M 102 Part No. LMDH74T Series Rev 2.0 : www.leiditech.com 12.01.2019 3/10

8 LMDH74T Series

8.1 Construction:

8.2 Material List:

Rev 2.0 : www.leiditech.com 12.01.2019 4/10

9 Reliability Of Ferrite Wire Wound Power Inductor

1-1.Mechanical Performance No Item S pecification 1-1-1 Vibration Appearance: No damage Test device shall be soldered on the substrate Inductance:within±10% of Oscillation Frequency: 10 to 55 to 10Hz for 1min initial value Amplitude: 1.5mm Time: 2hrs for each axis (X, Y & Z), total 6hrs 1-1-2 Resistance to Soldering Heat Appearance: No damage Pre-heating: 150 , 1min Solder Composition: Sn/Ag3.0/Cu0.5 Solder Temperature: 260±5 Immersion Time: 10±1sec 1-1-3 Solder ability The electrodes shall be at Pre-heating: 150 , 1min least 95% covered with new Solder Composition: Sn/Ag3.0/Cu0.5 solder coating Solder Temperature: 245±5 Immersion Time: 4±1sec 1-1-4 Resistance to solvent There must be no change in Inductors must withstand 6 minutes of alcohol or water. appearance or obliteration of marking. 1-2.Environmental Performance No Item S pecification 1-2-1 Temperature Shock Appearance: No damage 10 cycles (Air to Air) 1 cycles shall consist of: Inductance:within±10% of 30 minutes exposure to –55 initial value 30 minutes exposure to 125 15 seconds maximum transition between temperatures 1-2-2 Temperature Cycle One cycle: Step Temperature ( ) Time (min) 1 -40±3 30 2 25±2 3 3 105±3 30 4 25±2 3 Total: 100cycles Measured after exposure in the room condition for 24hrs 1-2-3 Humidity Resistance Temperature: 40±2 Relative Humidity: 90 ~ 95% Time: 1000hrs Measured after exposure in the room condition for 24hrs 1-2-4 Heat Life Temperature: 85±3 Relative Humidity: 20% Applied Current: Rated Current Time: 1000hrs Measured after exposure in the room condition for 24hrs 1-2-5 Cold Resistance Temperature: -40±3 Relative Humidity: 0% Time: 1000hrs Measured after exposure in the room condition for 24hrs Test Method Test Method LMDH74T Series Rev 2.0 : www.leiditech.com 12.01.2019 5/10

Rev 2.0 : www.leiditech.com 12.01.2019 6/10

10 Test Data

LeiditechP/N: LMDH74T-100M-N L RDC Isat A B C D (uH) ( Ω) (A) m/m m/m m/m m/m Spec Customer 10±20% 10 0.043 OK 7.32 7.31 4.38 Test Instrument L:E4980 or HP4284A RDC:CHEN HWA 502 Isat:HP4284A+HP42841A or WK3260B+WK3265B Appearance and Dimensions: SPEC : Refer to Item 6 Test Method : Visual Inspection and Measured with Slide Calipers. Test Conditions: Humidity Ordinary Humidity (25 to 85 %RH) 60 to 70 %RH Unless Otherwise Specified ln Case of Doubt Temperature Ordinary Temperature (15 to 35 ) 20 ± 2 X R Customer Sample Measured Item Test Freq. 1kHz 1V LMDH74T Series Rev 2.0 : www.leiditech.com 12.01.2019 7/10

11 Packaging:

11.1 Packaging -Cover Tape

The force for tearing off cover tape is 10 to 130 grams in the arrow direction.

11.2 Packaging Quantity

11.3 Reel Dimensions

Rev 2.0 : www.leiditech.com 12.01.2019 8/10

11.4 Tape Dimensions in mm

12 Recommended Land Pattern:

13 Note:

  1. Please make sure that your product has been evaluated and confirmed against your specifications when our product is mounted to your product. 2. Do not knock nor drop. 3. All the items and parameters in this product specification have been prescribed on the premise that our product is used for the purpose,under the condition and in the environment agreed upon between you and us. You are requested not to use our product deviating from such agreement. 4. Please keep the distance between transformer/coil and other components (refer to the standard IEC 950) 5. The moisture sensitivity level (MSL) of products is classified as level 1. LMDH74T Series LMDH74 LMDH74 LMDH73 Rev 2.0 : www.leiditech.com 12.01.2019 9/10

14 Graph:

Rev 2.0 : www.leiditech.com 12.01.2019 10/10 Shanghai Leiditech Electronic Co.,Ltd Email: sale1@leiditech.com Tel : +86- 021 50828806 Fax : +86- 021 50477059