DLW21HN900SQ2L
Manufacturer
Model
DLW21HN900SQ2L
Category
The Murata Electronics DLW21HN900SQ2L is a 2-line common mode filter optimized for EMI suppression in high-frequency circuits, featuring 90Ω @100MHz impedance and 350mΩ DC resistance. It operates within -40°C to +85°C with 50V DC rating and 125V withstand, suitable for consumer electronics, telecom, and industrial applications. Designers should prioritize proper PCB layout with ground planes, thermal management via vias, and ESD testing. Marketed as a reliable compact solution, it balances performance with moderate cost but lacks multi-line flexibility and higher current handling.
Reference Pricing
Reference Stock
Specifications
| Common-Mode Rejection Ratio | 90ohm±25% |
| Differential Rejection Ratio | N/A |
| Dimensions | N/A |
| Frequency Response | N/A |
| Insertion Loss | N/A |
| Operating Temperature Range | -40 to +85°C |
| Package Type | SMD-4P |
| Rated Voltage | 50Vdc |
| Weight | N/A |
Function And Role
Core Function
Common mode noise filtering in electronic circuits
Key Characteristics
- 90Ω impedance at 100MHz
- 350mΩ DC resistance
- 2-line configuration
- 50V DC voltage rating
- 125V voltage withstand
- 330mA current rating
- Operating temperature range -40°C to +85°C
Application Domains
Basic Scenarios
- Consumer electronics (e.g., smartphones, IoT devices)
- Communication equipment (e.g., routers, modems)
- Industrial control systems
Extended Scenarios
- Medical devices requiring EMI compliance
- Automotive electronic systems
- Telecommunications infrastructure
Precautions
| Soldering | Use reflow soldering techniques for SMD-4P packaging; avoid excessive heat exposure |
| Current Limit | Max continuous current: 330mA (peak: 500mA for 1 second) |
| Voltage Limit | DC operating voltage: 50V; withstand voltage: 125V RMS |
| Thermal Management | Thermal resistance: 25°C/W; ensure proper PCB copper pour for heat dissipation |
| Storage | Store in dry environments below 85°C; moisture-sensitive component (Grade 1) |
| Risk Warnings |
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Alternative Model Params
- Impedance @ frequency
- DC resistance
- Number of lines
- Voltage rating
- Current rating
- Operating temperature range
Design Recommendations
| Layout | Ensure 4-layer PCB design with dedicated ground plane |
| Thermal | Use thermal vias and copper pour for heat dissipation |
| Compatibility | Verify compatibility with Murata's complementary EMI suppression components |
| Testing | Test under ESD (±4kV) and voltage surge (100V peak) conditions |
Market Positioning
| Strengths |
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| Weaknesses |
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Datasheet
Assist inquiry
Distributors
Shenzhen Rongda Wei Electronic Technology Co., Ltd.
Shenzhen Xinyazhou Electronic Market Donglidao Electronic Business Department
Shenzhen Zhongxing Tai Electronic Co., Ltd.
Shenzhen Weijiesheng Electronics Co., Ltd.
Shenzhen Dongxing Microelectronics Technology Co., Ltd.
Shenzhen Chaoxin Electronics Co., Ltd.
Shenzhen Fuliwei Technology Co., Ltd.
Shenzhen Futian New Asia Electronic Market Phase II Dechengfa Electronic Merchants
Shenzhen Yunze Expansion Electronics Co., Ltd.
Shenzhen Liyuan Gaokang Electronic Co., Ltd.
Shenzhen Xingkechuang Electronic Co., Ltd.
Shenzhen Dake Sheng Electronic Co., Ltd.
Shenzhen Chuangye Crystal Oscillator Technology Co., Ltd.
Shenzhen Futian District Hanwei Xing Electronic Business
Shenzhen Hongkai Xuan Technology Co., Ltd.
Shenzhen Yu Hong Technology Co., Ltd.
Shenzhen Jiesheng Electronic Development Co., Ltd.
Shenzhen Jingdeli Technology Co., Ltd.
Shenzhen Yuxiang Electronic Trade (Individual Proprietorship)
Shenzhen Jinghongfeng Electronic Co., Ltd.
Shenzhen Mingweida Trading Co., Ltd.
Shenzhen Qino Electronics Co., Ltd.
Shenzhen Juyuanxin Electronic Co., Ltd.
Shenzhen Nangeng Electronic Co., Ltd.
Shenzhen Rongzu Yigou Electronic Co., Ltd.
Shenzhen Wenxinwei Electronic Co., Ltd.
Shenzhen Futian District Tandagaoke Electronic Business Department
Shenzhen Weikexin Electronic Technology Co., Ltd.
Shenzhen Yuanliyuan Science and Technology Co., Ltd.
Shenzhen Hongye Electronic Business Department (Individual)