【Daily Highlight】Slkor SLPESDMC2FD5VB: A 0.25 pF Ultra-Low-Cap TVS Creating an “Invisible” ESD Shield for 5 V High-Speed Lines

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2025-08-05 16:24:42 763

As serial links such as USB 3.2 Gen2×2, DisplayPort 2.1 and 16 Gbps SerDes push single-ended data rates beyond 20 Gb/s, any ESD device whose capacitance exceeds 0.3 pF behaves like a hidden inductor that slows edges. Slkor’s unidirectional TVS diode SLPESDMC2FD5VB combines a typical junction capacitance of 0.25 pF with a 13 V clamping level, 5 V reverse working voltage (VRWM) and 6 V minimum breakdown voltage (VBR) to deliver virtually “zero-added-load” electrostatic protection on 5 V high-speed single-ended or differential lines, while its reverse leakage is only 100 nA—helping mobile and wearable devices squeeze out even longer standby times.

Mission: intercept ESD, CDE or EFT pulses nanoseconds before they reach the IC I/O and shunt their energy to the ground plane, acting as an “invisible fuse” between the high-speed system and the hostile outside world. Traditional solutions trade higher power handling for larger capacitance, collapsing eye diagrams; SLPESDMC2FD5VB balances 88 W peak pulse power (8/20 μs) with 0.25 pF of capacitance via Slkor’s proprietary deep-well process, making it the ideal silent guardian for smartphones, tablets, notebooks, automotive cameras and AR/VR headsets.

A precisely-tuned protection window
Reverse working voltage VRWM = 5 V
Minimum reverse breakdown VBR = 6 V
This window guarantees that normal 5 V signals are never disturbed, yet the device still clamps reliably under ±15 kV air and ±8 kV contact discharges (IEC 61000-4-2 Level 4) and 40 A, 5/50 ns EFT bursts, fully covering the electrical specs of USB-C SuperSpeed, DisplayPort AUX, PCIe sideband and other 5 V interfaces.

13 V low clamping voltage
At 1 A, 8/20 μs the typical clamp VC is 13 V; at 4 A it rises only to 22 V—well below the 20 V+ transient rating of 5 V CMOS processes, minimizing over-shoot stress and preventing latent gate-oxide damage.

0.25 pF junction capacitance—30 % lower than mainstream offerings
CJ = 0.25 pF typ (@ VR = 0 V, f = 1 MHz, max 0.4 pF)

insertion loss < –0.15 dB and return loss < –25 dB at 20 GHz keep single-ended edges sharp and eyes wide open above 10 Gbps.

100 nA ultra-low leakage
IR = 100 nA typ (@ VR = 5 V, 25 °C) and remains below 500 nA at 85 °C, adding precious minutes of battery life to phones, TWS earbuds and wearables that must stay on 24/7.

DFN1006 ultra-thin package
Measuring only 1.0 mm × 0.6 mm × 0.5 mm, it occupies 60 % less PCB real estate than SOT-23; the 0.5 mm height slips easily under a USB-C tongue. A centrally-exposed die paddle creates the shortest possible ground path, cutting loop inductance and accelerating ESD discharge. Ni/Pd/Au terminations are lead-free-reflow compatible, and 7-inch tape-and-reel holds 10 kpcs for high-speed pick-and-place lines.

Typical applications
? Mobile: USB-C SuperSpeed lines, headphone jacks, SIM trays, side keys, camera MIPI D-PHY/CSI-2
? Computing: Thunderbolt? 4/5 lanes on ultra-slim notebooks, HDMI 2.1 ports, SSD M.2 slots
? Automotive: camera FPD-Link III, GMSL links, IVI USB hubs, tuner GPIOs
? Industrial & medical: high-speed DAQ cards, machine-vision cameras, portable ultrasound probe ports
? AR/VR & wearables: AR-glass Micro-OLED links, smart-watch combo charge/data ports

Design Tips
Place the SLPESDMC2FD5VB within 2 mm of the connector ingress. Keep single-ended or differential traces symmetrical and impedance-controlled. Open a solid ground plane window directly beneath the TVS exposed pad—do not share a long ground return path.

In addition, Slkor’s website (www.slkoric.com) offers a wide range of other product families, giving designers even more options.

With its 0.25 pF ultra-low capacitance, 13 V precise clamp, tight 5 V/6 V protection window and 100 nA leakage, SLPESDMC2FD5VB sets a new “invisible” ESD benchmark for 5 V high-speed single-ended and differential interfaces, offering silent yet rock-solid protection for lighter, faster and more reliable end products.

About Slkor：

SLKOR, headquartered in Shenzhen, China, is a rapidly emerging national high-tech enterprise in the power semiconductor sector. With R&D centers in Beijing and Suzhou, its core technical team originates from Tsinghua University. As an innovator in silicon carbide (SiC) power device technology, SLKOR's products are widely used in new energy vehicles, photovoltaic power generation, industrial IoT, and consumer electronics, providing critical semiconductor solutions to over 10,000 clients globally. The company delivers more than 2 billion units annually, with its SiC MOSFETs and 5th-generation ultrafast recovery SBD diodes setting industry benchmarks in efficiency ratio and thermal stability. SLKOR holds over 100 invention patents and offers 2,000+ product models, continually expanding its IP portfolio across power devices, sensors, and power management ICs. Certifications including ISO 9001, EU RoHS/REACH, and CP65 compliance demonstrate the company's steadfast commitment to technological innovation, lean manufacturing, and sustainable development.

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【Daily Highlight】Slkor SLPESDMC2FD5VB: A 0.25 pF Ultra-Low-Cap TVS Creating an “Invisible” ESD Shield for 5 V High-Speed Lines

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