DF2B5M4ASL and DF2B6M4ASL - Low Capacitance TVS diodes for ESD protection
Toshiba Electronic Devices have started shipments of two low capacitance TVS diodes (DF2B5M4ASL, DF2B6M4ASL) for ESD protection and to support high-speed communication standards such as Thunderbolt 3, HDMI 2.1 and USB 3.1. The capacitance of the new product is typically 0.15pF, which is 25% lower than the current products.
Tablets, laptop PCs, game consoles, virtual reality equipment, and other high-speed signal lines have a minimized transfer time for video data or larger files by using 10Gbps or 48Gbps high-speed communication standards. The ESD tolerances decreases due to the increasing miniaturized controller ICs used in these high-speed communications and their lack can cause critical faults such as communication errors and file damages. The parts connected to high-speed communication lines have a large effect on signals and the passive parts on printed circuit boards such as capacitors and resistors can distort signal waveforms.
Specification of DF2B5M4ASL and DF2B6M4ASL:
- Small and surface-mounted package (0.62×0.32×0.3mm)
- Clamping Voltage: 15V
- Dynamic resistance: 0.7Ω
- High electrostatic discharge voltage rating: VESD= ±16kV (DF2B5M4ASL) VESD= ±15kV (DF2B6M4ASL)
- Maximum working peak reverse voltage: VRWM= 3.6V (DF2B5M4ASL) VRWM= 5.5V (DF2B6M4ASL)
Note: More Technical Detials can be found at the DF2B5M4ASL datasheet linked at the bottom of this page.
The new TVS diodes reduce these influences with its lower capacitance, it also acts as a countermeasure to ESD and surges from connectors and realizes stable circuits in high-speed communications. These Low capacitance diodes are now available for purchase from the Toshiba website. You can also find the DF2B5M4ASL and DF2B6M4ASL datasheet in required language from the respective links.