Diodes Incorporated D5V0L1B2S9-7

Overview

D5V0L1B2S9-7 from Diodes Incorporated is a bidirectional transient voltage suppression (TVS) diode designed for ESD protection of high-speed data lines in portable electronics. It features 5 V reverse standoff voltage, ±30 kV IEC 61000-4-2 contact/air ESD immunity, 15 pF typical input capacitance, 6 A peak pulse current, and SOD923 package - enabling robust protection in space-constrained interfaces like USB 2.0 and audio jacks.

For engineers reviewing the D5V0L1B2S9-7 datasheet, D5V0L1B2S9-7 pinout, D5V0L1B2S9-7 application, or D5V0L1B2S9-7 equivalent, key selection criteria include low clamping voltage under 6 A surge, sub-20 pF channel capacitance for signal integrity, bidirectional polarity, RoHS-compliant lead-free construction, and compatibility with automated SMT assembly on FR-4 PCBs.

Technical Context

This TVS diode operates as a voltage-clamped shunt protector across differential or single-ended signal paths. Its silicon avalanche structure triggers at 6 V breakdown (V_BR), clamps transients to ≤14.0 V at 6 A (8/20 µs), and maintains leakage <100 nA at 5 V - ensuring minimal loading on sensitive I/O pins.

The device uses a monolithic dual-anode/dual-cathode configuration in SOD923 to achieve true bidirectional behavior without external biasing. Its 15 pF input capacitance (measured at 0 V, 1 MHz) and low differential resistance (<0.2 Ω at 1 A) preserve signal edge fidelity in high-frequency applications up to ~500 MHz.

Key Specifications

Pinout & Package

Package: SOD923 - ultra-small surface-mount plastic case (0.90 × 0.40 × 0.60 mm), UL 94V-0 rated, moisture sensitivity level 1, matte tin-plated alloy 42 leadframe.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SP1001-01UTG and ESD5Z5.0T1G, D5V0L1B2S9-7 uniquely balances bidirectional operation, 6 A surge capability, and 15 pF capacitance in SOD923 - making it optimal for high-speed, polarity-agnostic protection where board space and signal fidelity are jointly constrained.

Availability

D5V0L1B2S9-7 is available at Aetrix Electronics and suitable for cellular handsets, portable medical sensors, and USB 2.0 peripheral designs requiring stable component supply across high-mix, low-volume production runs.

Supply support for D5V0L1B2S9-7 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

This device belongs to Diodes' ESD protection product line, engineered specifically for ultra-low-capacitance, high-surge immunity in miniaturized portable electronics - emphasizing board-space efficiency and compliance with IEC 61000-4-2 Level 4.

FAQ

What is the maximum clamping voltage of D5V0L1B2S9-7 at 6 A surge current?

The clamping voltage is specified as 11.5 V (typical) to 14.0 V (maximum) at 6 A, 8/20 µs waveform. This value represents the peak voltage imposed on the protected line during worst-case ESD transients, ensuring downstream ICs with 13.2 V absolute maximum ratings remain within safe operating limits.

Can D5V0L1B2S9-7 be used on a 3.3 V I/O line?

Yes - its 5 V reverse standoff voltage (V_RWM) provides sufficient margin above 3.3 V nominal operation, while leakage remains below 100 nA at that bias. The 6 V minimum breakdown ensures reliable triggering only during ESD events, avoiding false conduction during normal signal swings.

Is the SOD923 package compatible with standard reflow profiles?

Yes - the SOD923 package has moisture sensitivity level 1 and is qualified for IPC/JEDEC J-STD-020 standard reflow. Its matte tin finish and alloy 42 leadframe ensure reliable solderability using SnPb or lead-free SAC305 profiles, with peak temperatures up to 260 °C.

Does D5V0L1B2S9-7 require external series impedance for optimal ESD performance?

No - it is designed for direct placement across the protected line and ground, with no series resistor needed. Its low dynamic resistance (<0.2 Ω) and fast response (<1 ns) enable effective clamping without added components, though board layout (short traces, solid ground plane) remains critical for achieving full ±30 kV rating.