O402

Q:What defines the physical structure of O402?

A:Key features include:
- Leadless bottom-mounted pads for compact PCB integration
- Central thermal pad (80% coverage) for efficient heat dissipation
- 16-pin layout with dual-row perimeter arrangement
- 0.8 mm ultra-thin profile for space-constrained designs

Q:Why choose O402 over alternatives?

A:Critical advantages:
- Miniaturization: 40% smaller than SOP-8 packages
- Thermal Performance: Direct PCB heat path reduces junction temperature by 15°C
- Electrical Benefits: Low-inductance design (<0.5 nH) for high-frequency stability
- Reliability: Moisture-resistant substrate (MSL3 certified)

Q:What are common technical specs?

A:Standard configurations (consult datasheets):
- Body Size: 4.0 × 4.0 mm
- Height: 0.8 mm
- Pin Pitch: 0.5 mm
- Material: Copper-alloy leads with Ni/Pd/Au plating
- Temp Range: -40°C to +125°C

Q:Where is O402 typically applied?

A:Dominant use cases:
- Power Converters: Buck/boost ICs (e.g., TPS62130)
- RF Modules: Bluetooth/Wi-Fi transceivers (e.g., CC2640)
- Sensor Interfaces: MEMS accelerometers (e.g., LIS2DH12)

Q:What are critical assembly guidelines?

A:Key recommendations:
- PCB Design: 4×4 thermal vias array under central pad (0.3 mm diameter)
- Solder Paste: Type 4 solder recommended for fine-pitch printing
- Reflow Profile: Peak temp ≤ 245°C (Pb-free process)
- Inspection: X-ray (AXI) mandatory for void detection (<15% allowed)