000A4
Manufacturer
Model
000A4
Category
The PANJIT International 1N4148WS-R1_000A4 is a compact switching diode optimized for low-power signal handling and basic rectification in 75V systems. With 4ns recovery time and 200mA rectified current, it suits high-frequency applications but requires thermal management above 100mA. Its SOD-323S package ensures compact PCB integration, while reverse leakage (2.5µA) and forward voltage (1.25V) make it suitable for precision low-level signal protection. Marketed as a cost-effective alternative with RoHS compliance, it excels in volume production but lacks advanced features for high-voltage or high-precision scenarios.
Reference Pricing
Reference Stock
Specifications
| Forward Voltage Drop | 1.25V@150mA |
| Junction Capacitance | 1.5pF |
| Maximum Forward Current | 200mA |
| Maximum Reverse Voltage | 100V |
| Operating and Storage Temperature Range | -55 to +150 °C |
| Package Type | SOD-323S |
| Rated Voltage | 75V |
| Reverse Recovery Time | 4μs |
| Switching Speed | Fast switching speed |
| Thermal Resistance | 500°C/W |
Function And Role
Core Function
Rectification, signal switching, and voltage protection in low-power circuits
Key Characteristics
- 75V DC reverse voltage rating
- 1.25V forward voltage drop at 150mA
- 200mA rectified current capability
- 4ns reverse recovery time
- Independent Type configuration for simplified circuit design
- 2.5µA reverse leakage current at 75V
Application Domains
Basic Scenarios
- Low-frequency signal switching in digital circuits
- Simple AC/DC power rectification
- Transistor base clamping protection
Extended Scenarios
- Surge protection in telecom equipment
- High-frequency oscillator circuits
- Low-power battery backup voltage regulation
Precautions
| Soldering | Use 60-80°C soldering temperature and avoid prolonged heat exposure to prevent package delamination |
| Current Limit | Max continuous current exceeds 200mA may cause thermal runaway |
| Voltage Limit | Reverse voltage must not exceed 75V to prevent catastrophic failure |
| Thermal Management | Junction temperature must stay within -55°C to +150°C; use thermal vias for high-power applications |
| Storage | Store in dry environment below 30°C to prevent moisture-induced leakage current |
| Risk Warnings |
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Alternative Model Params
- Vr (Reverse Voltage): Must match system voltage rating ±10%
- Vf (Forward Voltage): Critical for power loss calculations
- Ir (Reverse Leakage): Affects low-level signal integrity
- trr (Recovery Time): Limits switching frequency capability
- Package (SOD-323S): Ensure mechanical compatibility with PCB layout
- Tj (Junction Temp): Determines thermal design requirements
Design Recommendations
| Layout | Keep switching nodes <10mm from diode to minimize parasitic inductance |
| Thermal | Apply 0.5W heat sink if operating >100mA continuous current |
| Compatibility | Verify SOD-323S footprint matches PCB design (3.2x2.5mm) |
| Testing | Perform 100% IR test at 25°C for reverse leakage validation |
Market Positioning
| Strengths |
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| Weaknesses |
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Datasheet
Assist inquiry
Distributors
Shenzhen Zhongxing Tai Electronic Co., Ltd.
Shenzhen Anxinmei Electronics Co., Ltd.
Shenzhen Futian District Bin Fengsheng Electronic Business Department
Shenzhen Beihuada Electronics Co., Ltd.
Baoma Microelectronics (Shenzhen) Co., Ltd.
Shenzhen BF Electronics Co., Ltd.
Shenzhen Mingcai Electronic Co., Ltd.
Shenzhen Chengxin Chip Technology Co., Ltd.
Shenzhen Chaolongye Electronic Technology Co., Ltd.
Shenzhen Baixin Microelectronics Co., Ltd.
Shenzhen Dadi Huayu Electronics Co., Ltd.
Shenzhen Decheng Xingye Technology Co., Ltd.
Shenzhen DeYang Electromechanical Co., Ltd.
Shenzhen Kaixin Yue Electronics Co., Ltd.
Shenzhen Yaoxin Technology Co., Ltd.
Shenzhen Xinyuhang Electronic Co., Ltd.
Shenzhen Qili Technology Co., Ltd.
Shenzhen Xinyi Electronics Co., Ltd.
Shenzhen Century Jinfeng Technology Co., Ltd.
Shenzhen Jihuisheng Technology Co., Ltd.
Shenzhen Hui Shengxin Electronic Technology Co., Ltd.
Shenzhen Xinteng Hongxin Electronic Technology Co., Ltd.
Shenzhen Bainei Information Technology Co., Ltd.
Shenzhen Pengxin Microelectronics Technology Co., Ltd.
Shenzhen Junbang Electronics Co., Ltd.
Shenzhen Yuanzhuang Weirun Technology Co., Ltd.
Shenzhen Mingxin Electronic Technology Co., Ltd.
Shenzhen Futian District Jintaielectronics Technology Trade
Shenzhen Junengda Electronics Co., Ltd.
Shenzhen Ju Rong Electronics Co., Ltd.