ChongMing Group (HK) Int'l Co., Ltd
CHONGMING GROUP (HK) INT'L CO., LTD.
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BLM21AG601SN1D
On-Board Type (DC) EMI Suppression Filters
Features
(BLM_A Series) The chip ferrite bead BLM series comprises ferrite beads in the shape of a chip. This ferrite bead generates a high impedance which at high frequency mainly consists of a resistance element. The BLM series is effective in circuits without stable ground lines because the BLM series does not need a connection to ground. The nickel barrier structure of the external electrodes provides excellent solder heat resistance. BLM_A series generates an impedance from the relatively low frequencies. Therefore BLM_A series is effective in noise suppression in a wide frequency range (30MHz - several hundred MHz). The small size of BLM03 series (0.6x0.3mm) is suitable for noise suppression in small equipment such as PA modules for cellular phones.
| Part Number | Impedance (at 100MHz/20°C) (ohm) | Rated Current (mA) | DC Resistance (max.) (ohm) | Operating Temperature Range (°C) |
| BLM21AG121SN1 | 120 ±25% | 200 | 0.15 | -55 to +125 |
| BLM21AG151SN1 | 150 ±25% | 200 | 0.15 | -55 to +125 |
| BLM21AG221SN1 | 220 ±25% | 200 | 0.20 | -55 to +125 |
| BLM21AG331SN1 | 330 ±25% | 200 | 0.25 | -55 to +125 |
| BLM21AG471SN1 | 470 ±25% | 200 | 0.25 | -55 to +125 |
| BLM21AG601SN1 | 600 ±25% | 200 | 0.30 | -55 to +125 |
| BLM21AG102SN1 | 1000 ±25% | 200 | 0.45 | -55 to +125 |