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Specifications
Current - Saturation (Isat):
35A
Mfr. Part #:
MMD-12FD-3R3M-V1
Package:
SMD,13.2x12.9mm
Key Attributes
Model Number:
MMD-12FD-3R3M-V1
Product Description
Product Overview
The MAG.LAYERS MMD-12FD-SERIES-V1 is a series of high-performance magnetic metal powder power choke coils designed for a wide range of applications including laptop, desktop, and server systems, as well as high current power supplies and battery-powered devices. These components are RoHS compliant and halogen-free, offering low resistance and high current ratings.
Product Attributes
- Brand: MAG.LAYERS
- Series Type: MMD-12FD-SERIES-V1
- Compliance: RoHS compliant & halogen free
- Core Material: High performance magnetic metal powder
Technical Specifications
Product Identification:
- Product Code: MMD
- Dimensions: 12FD
- Inductance: Indicated by a 3-digit code (e.g., 2R2 = 2.2H)
- Tolerance: M = 20%
- Series Type: V1
Electrical Performance:
| Part number | Inductance 20%@0A (H) | Rdc (m) Typ. | Rdc (m) Max. | Heat rating current (Idc) DC amps (A) | Saturation current (Isat) DC amps (A) |
|---|---|---|---|---|---|
| MMD-12FD-R15M-V1 | 0.15 | 0.53 | 0.6 | 55.0 | 118 |
| MMD-12FD-R22M-V1 | 0.22 | 0.63 | 0.7 | 53.0 | 112 |
| MMD-12FD-R33M-V1 | 0.33 | 0.83 | 0.9 | 46.0 | 65.0 |
| MMD-12FD-R47M-V1 | 0.47 | 1.0 | 1.2 | 41.0 | 63.0 |
| MMD-12FD-R56M-V1 | 0.56 | 1.2 | 1.4 | 37.0 | 62.0 |
| MMD-12FD-R68M-V1 | 0.68 | 1.4 | 1.6 | 35.0 | 60.0 |
| MMD-12FD-R82M-V1 | 0.82 | 1.6 | 1.9 | 33.0 | 50.0 |
| MMD-12FD-1R0M-V1 | 1.0 | 1.7 | 2.0 | 32.0 | 49.0 |
| MMD-12FD-1R5M-V1 | 1.5 | 2.5 | 3.0 | 27.0 | 45.0 |
| MMD-12FD-1R8M-V1 | 1.8 | 2.8 | 3.2 | 24.0 | 41.0 |
| MMD-12FD-2R2M-V1 | 2.2 | 3.5 | 4.2 | 22.0 | 40.0 |
| MMD-12FD-3R3M-V1 | 3.3 | 5.7 | 6.8 | 18.0 | 35.0 |
| MMD-12FD-4R7M-V1 | 4.7 | 9.3 | 11.2 | 13.5 | 30.0 |
| MMD-12FD-6R8M-V1 | 6.8 | 13.1 | 14.0 | 11.5 | 16.5 |
| MMD-12FD-8R2M-V1 | 8.2 | 14.5 | 15.5 | 10.5 | 16.0 |
| MMD-12FD-100M-V1 | 10.0 | 16.4 | 17.2 | 10.0 | 15.5 |
Test Conditions:
- Test frequency: 100 KHz, 0.25V.
- Ambient temperature: 25C.
- Operating temperature range: -55C to +125C.
Notes:
- Heat rating current (Idc) causes approximately 40C temperature rise.
- Saturation current (Isat) causes approximately 20% initial inductance drop.
- Part temperature (ambient + temp rise) should not exceed 125C under worst-case conditions.
- Component temperature is influenced by application conditions (e.g., circuit design, PCB copper thickness, cooling). Actual component temperature must be tested in the end application.
Product Dimension:
| Part number | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) |
|---|---|---|---|---|---|
| MMD-12FD-SERIES-V1 | 13.2 0.5 | 12.9 Max | 6.4 Max | 3.5 0.5 | 2.3 0.3 |
Recommended PCB Layout:
| Type | A (mm) | B (mm) | C (mm) |
|---|---|---|---|
| 12FD | 4.95 | 7.87 | 13.76 |
Safety Precaution:
- Avoid through holes and copper patterns in the dotted line area, except for connections to electrodes.
- Do not design/mount any components in contact with this product. This power choke coil lacks protective functions against abnormal conditions (overload, short circuit, open). Confirm in the end product that there is no risk of smoking, fire, or issues with dielectric withstand voltage and insulation resistance under abnormal conditions. Implement protective devices and/or circuits in the end product.
Packaging:
| Type | SIZE | Peeled off force of cover tape (grams) | Dimensions (mm) | Taping quantity (PCS/Reel) |
|---|---|---|---|---|
| MMD-12FD-SERIES-V1 | 330mm Reel | 10 to 70 | A: 3.40.1, B: 14.10.1, C: 24.00.2, D: 1.50.1, E: 1.750.1, F: 9.2 2 | 250 |
Packaging Structure:
- Middle packaging: 2 reels/box
- External packaging: 5 boxes/carton
2410121523_MAGLAYERS-MMD-12FD-3R3M-V1_C332205.pdf
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