Source: Sumida news
Sumida has developed a ferrite type pin mount inductor RD55D82 (L×W×H:6.0×6.0×8.5mm Max.).
Like RCH4764，it is magnetically unshielded. As a DC-DC Converter inductor, it is ideally used in printer, LCD TV, LED driver, copy machine, smart meter etc.
Meanwhile, there is a heat shrinkable tube on RD55D82 for protection, which is resistant to high temperature up to 125°C, and allows customers to have enough leeway in developing thermal design.
Key Features:
- Ferrite core construction
- Magnetically unshielded
- Operating temperature range: -40℃～+125℃ (including coils self temperature rise)
Applications:
- Printer, LCD TV, LED driver, copy machine, smart meter etc.
Parts List:
| Part Name | Inductance [Within] (μH) ※1 | D.C.R. at 20℃ (A) Max. (Typ.) (mΩ) | Saturation Current (A) Max.(Typ.) ※2 | Temperature Rise Currrent (A) ※3 |
| RD55D82NP-3R3MB | 3.30 ± 20% | 22.00 (17.00) | 4.10 (5.10) | (4.70) |
| RD55D82NP-4R7MB | 4.70 ± 20% | 32.00 (25.00) | 3.90 (5.10) | (3.60) |
| RD55D82NP-6R8MB | 6.80 ± 20% | 45.00 (35.00) | 3.20 (4.00) | (2.90) |
| RD55D82NP-100MB | 10.00 ± 20% | 61.00 (47.00) | 2.65 (3.30) | (2.60) |
| RD55D82NP-150MB | 15.00 ± 20% | 98.00 (75.00) | 2.25 (2.80) | (1.90) |
| RD55D82NP-220MB | 22.00 ± 20% | 136 (105) | 1.75 (2.20) | (1.70) |
| RD55D82NP-330MB | 33.00 ± 20% | 195 (150) | 1.45 (1.80) | (1.40) |
| RD55D82NP-470MB | 47.00 ± 20% | 250 (190) | 1.45 (1.80) | (1.40) |
| RD55D82NP-680MB | 68.00 ± 20% | 345 (265) | 1.04 (1.30) | (1.00) |
| RD55D82NP-101KB | 100 ± 10% | 556 (445) | 0.80 (1.00) | (0.75) |
| RD55D82NP-151KB | 150 ± 10% | 850 (680) | 0.72 (0.90) | (0.56) |
| RD55D82NP-221KB | 220 ± 10% | 1250 (680) | 0.56 (0.70) | (0.47) |
| RD55D82NP-331KB | 330 ± 10% | 1880 (1500) | 0.45 (0.56) | (0.42) |
| RD55D82NP-471KB | 470 ± 10% | 2500 (2000) | 0.40 (0.50) | (0.35) |
| RD55D82NP-681KB | 680 ± 10% | 4000 (3200) | 0.34 (0.42) | (0.28) |
| RD55D82NP-102KB | 1000 ± 10% | 5000 (4000) | 0.25 (0.31) | (0.27) |
※1 Measuring condition at 100kHz 0.25V.
※2 Saturation current: This indicates the value of DC current when the inductance is 10% lower than its initial value.
※3 Temperature rise current: The value of DC current when coils self temperature rise is △T=40℃. (Ta=20℃)
Production Stage:
In mass production