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ESD5E001TA Bidirectional TVS Diode Technical Specification -ASIM
2025.09.05 00:00:00
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ESD5E001TA Characteristics
1. Electrical parameters
| Parameter | Symbol | Conditions | Typical value | Maximum value | Unit |
|---|---|---|---|---|---|
| Reverse cut-off voltage | VRWM | - | - | ±5.0 | V |
| Reverse leakage current | IR | VRWM=5V | - | 0.2 | μA |
| Breakdown voltage | VBR | IT=1mA | 6.0 | - | V |
| Clamping voltage | VC | Ipp=1A (8/20μs) | - | 15.0 | V |
| Clamping voltage | VC | Ipp=2.5A (8/20μs) | - | 20.0 | V |
| Junction capacitance | C | Vr=0V, f=1MHz | 0.08 | 0.15 | pF |
2. Protection grade
- ESD protection（IEC61000-4-2）：
- ±15kV（Air discharge）
- ±10kV（Contact discharge）
- EFT protection（IEC61000-4-4）：40A（5/50ns）
- Surge protection（IEC61000-4-5）：2.5A（8/20μs）
3. Physical properties
- Encapsulation：DFN0603-2L（SOD962）
- Size：0.6×0.3×0.3mm（Ultra-miniature surface mount）
- Environmental protection certification: Halogen-free, lead-free, RoHS compliant
Key design advantages
- Ultra-low capacitance (typical value: 0.08pF)
- It is suitable for high-speed interfaces (such as USB 3.0/HDMI, etc.) to avoid deterioration of signal integrity.
- Two-way protection
- Both positive and negative polarity transient voltages are effectively clamped, simplifying the circuit layout.
- Miniaturized packaging
- It occupies only 0.18mm² of board area, making it suitable for portable devices with limited space (such as TWS headphones and smartwatches).
Typical application scenarios
- Portable device interface protection
- Mobile phone USB-C/ Headphone jack
- SIM card slot for tablet computers
- High-speed signal line protection
- MIPI DSI/CSI camera interface
- 5G millimeter-wave antenna feeder
- Precision circuit protection
- Sensor signal conditioning circuit (ADC front end)
GPIO pins of low-power MCU
Key Points of circuit design
1. Layout specification
[Signal line] →───┤ESD5E001TA├───→ [Protected IC] │ GND（Complete copper plating, impedance less than 0.1Ω）
- Grounding requirements：
- The distance from the grounding pin to the main ground shall be no more than 1.5mm
- Avoid using jumpers for grounding
2. Selection verification formula
- Clamping voltage verification：
- Power verification：
Failure mode prevention
| Failure phenomenon | The fundamental cause | Solution |
|---|---|---|
| Excessive leakage current | Moisture penetration leads to insulation deterioration | Select the nano-hydrophobic coating model |
| Response delay | The welding temperature is too high | The peak temperature of reflow soldering is ≤260℃ |
| Protection failure | The impedance of the grounding loop is too large | Shorten the grounding path and increase the ground via |
Industry measured data
| Test project | Conditions | Result |
|---|---|---|
| Signal distortion rate | 10Gbps differential signal | <0.5% |
| Insertion loss | f=10GHz | -0.25dB |
| Performance after 30 ESD impacts | ±15kV air discharge | Parameter drift <3% |
Conclusion：
ESD5E001TAWith its ultra-low capacitance of 0.08pF, ±15kV ESD protection and 0.6mm micro package, it has become an ideal choice for high-speed interface protection of portable electronic devices. In high-end scenarios such as 5G RF front-end and medical wearable devices, it is recommended to adopt a low-impedance multi-layer board design to achieve the best performance.
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