AO3400
Manufacturer
Model
AO3400
Category
The TWGMC AO3400 is a high-efficiency N-channel MOSFET optimized for DC switching applications with 30V rating, 5.8A current capability, and 40mΩ on-resistance. Ideal for power supplies, motor control, and battery systems in industrial and automotive environments, it offers robust thermal performance (-55°C to +150°C) and compact SOT-23 packaging. Designers should prioritize heat management and gate drive stability while leveraging its cost advantages in high-volume production.
Reference Pricing
Reference Stock
Specifications
| Drain Current (Id) | 5.7A |
| Drain-to-Source Voltage (Vds) | 30V |
| Gate-to-Source Voltage (Vgs) | ±12V |
| On-Resistance (Rds(on)) | 22mΩ |
| Operating Temperature Range | -55~+150℃ |
| Package Material | Not specified |
| Package Type | SOT-23 |
| Rated Voltage | 30V |
| Switching Speed | 3.2ns |
| Threshold Voltage (Vth) | 0.7V |
| Transconductance (gm) | 26S |
Function And Role
Core Function
N-channel MOSFET for low-resistance switching applications
Key Characteristics
- 30V drain-source voltage
- 5.8A continuous drain current
- 40mΩ@4.5V on-resistance
- 350mW power dissipation
- 1.4V gate threshold voltage
- 77pF reverse transfer capacitance
- 1.05nF input capacitance
Application Domains
Basic Scenarios
- DC switching in power supplies
- low-power motor control
- LED driver circuits
- battery management systems
Extended Scenarios
- Automotive electronic control units
- industrial motor drives
- wearable device power management
- high-frequency RF switching
Precautions
| Soldering | Use finepitch soldering techniques for SOT-23 package; avoid excessive heat |
| Current Limit | Max continuous drain current 5.8A (10A peak); ensure proper heat sinking |
| Voltage Limit | Max Vds 30V; observe absolute maximum ratings |
| Thermal Management | Thermal resistance 62.5°C/W; maintain junction temperature below 150°C |
| Storage | Store in moisture-free environment below 85% RH |
| Risk Warnings |
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Alternative Model Params
- Vdss (30V)
- Id (5.8A)
- RDS(on) (40mΩ)
- Pd (350mW)
- Vgs(th) (1.4V)
- Operating temperature (-55°C~+150°C)
Design Recommendations
| Layout | Use short gate leads and decoupling capacitors near drain |
| Thermal | Implement copper pour heat sinks for high-current applications |
| Compatibility | Ensure gate driver voltage compatibility (Vgs max ±20V) |
| Testing | Perform JIC test for endurance cycling and thermal stability |
Market Positioning
| Strengths |
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| Weaknesses |
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