Toshiba Semiconductor and Storage DF2S6P1CT,L3F

Overview

DF2S6P1CT from Toshiba Electronic Devices & Storage Corporation is an ESD protection diode designed for signal-line transient suppression in mobile device interfaces. It features a working peak reverse voltage of 5.5 V, ±30 kV IEC61000-4-2 contact ESD rating, 0.23 Ω typical dynamic resistance, 12 V clamping voltage at 10 A, and ultra-compact CST2 package (1.0 mm × 0.6 mm). It protects high-speed data lines such as USB, HDMI, and audio interfaces against electrostatic discharge.

For engineers reviewing the DF2S6P1CT datasheet, DF2S6P1CT pinout, DF2S6P1CT application, or DF2S6P1CT equivalent, key selection criteria include clamping performance under 10 A I_PP, low capacitance (90 pF), compatibility with 5.0 V signal rails, robustness against indirect lightning surges per IEC61000-4-5, and footprint constraints in space-constrained PCB layouts.

Technical Context

The DF2S6P1CT employs a silicon epitaxial planar TVS structure optimized for fast response to ESD transients while maintaining low dynamic impedance. Its bidirectional configuration provides symmetrical ±30 kV ESD protection per IEC61000-4-2, with clamping initiated below 12 V at 10 A peak pulse current.

Designed specifically for interface line protection, it operates within a 5.5 V working reverse voltage range and delivers 90 pF total capacitance at 0 V - enabling use on high-speed digital lines without signal integrity degradation. The device is not rated for voltage regulation or continuous power dissipation.

Key Specifications

Pinout & Package

The DF2S6P1CT is housed in the CST2 surface-mount package - a 2-terminal, ultra-compact, leadless ceramic chip measuring 1.0 mm × 0.6 mm × 0.35 mm (typ.) with 0.7 mg mass. Marking "6P1" appears on top surface; cathode is designated Pin 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ESD protection applications.

Compared with TPD2E001DRYR and ESD5Z5.0T1G, the DF2S6P1CT uniquely combines bidirectional ±30 kV ESD rating, 12 V clamping at full 10 A, and industry-smallest CST2 footprint - making it optimal for next-gen compact mobile interfaces where both robustness and layout density are constrained.

Availability

DF2S6P1CT is available at Aetrix Electronics and suitable for smartphone interface protection, tablet HDMI shielding, notebook USB-C port hardening, and other high-reliability portable electronics requiring stable component supply and long-term lifecycle support.

Supply support for DF2S6P1CT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and logic ICs with emphasis on reliability, miniaturization, and application-specific optimization.

The DF2S6P1CT belongs to Toshiba's CST2-series ESD protection portfolio, engineered specifically for ultra-dense mobile interface protection where low capacitance, high surge tolerance, and minimal footprint are simultaneously required.

FAQ

What is the maximum working voltage the DF2S6P1CT can protect?

The DF2S6P1CT has a working peak reverse voltage (VRWM) of 5.5 V, meaning it is rated for continuous operation on 5.0 V signal lines. Exceeding this voltage risks premature conduction and potential device failure. Its reverse breakdown voltage (VBR) is 6.7 V typical, providing a safety margin above VRWM while ensuring reliable clamping during ESD events.

Does the DF2S6P1CT support bidirectional ESD protection?

Yes, the DF2S6P1CT is a bidirectional TVS diode, delivering symmetrical ±30 kV ESD protection per IEC61000-4-2 (contact discharge). Its internal structure connects two opposing diodes in series back-to-back, allowing it to clamp both positive and negative transients on the same signal line - essential for protecting AC-coupled or differential interfaces like USB and HDMI.

What is the clamping voltage of the DF2S6P1CT under real surge conditions?

The DF2S6P1CT clamps to 12 V typical at 10 A peak pulse current (IPP), measured using an 8/20 µs waveform per IEC61000-4-5. This value reflects actual voltage seen by downstream ICs during surge events. At lower currents (e.g., 1 A), clamping drops to 7 V typical - confirming strong low-current responsiveness critical for fast ESD pulses.

Can the DF2S6P1CT be used on high-speed data lines like USB 2.0?

Yes, the DF2S6P1CT is qualified for USB 2.0 applications due to its 90 pF total capacitance at 0 V and low dynamic resistance (0.23 Ω). These parameters minimize signal distortion and maintain eye diagram integrity at 480 Mbps. Its CST2 footprint also enables placement directly at the USB connector, reducing parasitic inductance and improving high-frequency suppression.

Is the DF2S6P1CT RoHS compliant and halogen-free?

Yes, the DF2S6P1CT is RoHS compliant and halogen-free, as confirmed by Toshiba's official product documentation and environmental compliance statements. It meets EU Directive 2011/65/EU and contains no brominated flame retardants (BFRs), chlorinated flame retardants (CFRs), or antimony trioxide. Full material declarations and test reports are available upon request from Aetrix Electronics.