Diodes Incorporated D3V3H1B2LPQ-7B

Overview

D3V3H1B2LPQ-7B 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 a 3.3V reverse standoff voltage, ±30kV IEC 61000-4-2 contact/air ESD rating, 100pF typical junction capacitance, 40A peak pulse current (8/20µs), and is housed in an X1-DFN1006-2 package (1.08mm × 0.68mm, 0.53mm max height) - ideal for USB 2.0, HDMI, and audio jack interfaces in smartphones and wearables.

For engineers reviewing the D3V3H1B2LPQ-7B datasheet, D3V3H1B2LPQ-7B pinout, D3V3H1B2LPQ-7B application, or D3V3H1B2LPQ-7B equivalent, key selection criteria include low clamping voltage (9.5V at 40A), AEC-Q101 qualification for automotive infotainment ports, ultra-low profile packaging, and verified IEC 61000-4-5 surge compliance (7.0V clamping at 1A).

Technical Context

This TVS diode operates as a bidirectional clamping device with symmetrical breakdown behavior above ±3.8V (V_BR min), enabling robust protection against both positive and negative transients on single-ended signal paths. Its low 100pF capacitance ensures minimal signal integrity impact on 480Mbps USB 2.0 channels and analog audio lines.

The device uses silicon avalanche technology to achieve fast response (<1ns) and stable clamping performance across -65°C to +150°C ambient range. Thermal resistance (R_θJA = 500°C/W) and 250mW steady-state power dissipation are defined for standard FR-4 PCB layout per Diodes' recommended pad footprint.

Key Specifications

Pinout & Package

Package: X1-DFN1006-2 - ultra-compact, 2-terminal, bottom-terminated leadless plastic package with NiPdAu-plated copper leadframe; moisture sensitivity level 1 (J-STD-020); UL 94V-0 rated molding compound.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bidirectional TVS diode applications.

Compared with SMAJ3.3A-Q and SP1003-030, D3V3H1B2LPQ-7B uniquely balances ultra-small size (1.08mm × 0.68mm), 100pF capacitance for USB 2.0, and AEC-Q101 qualification - making it optimal for space-constrained automotive and consumer portable designs where both ESD robustness and signal fidelity are required.

Availability

D3V3H1B2LPQ-7B is available at Aetrix Electronics and suitable for automotive infotainment systems, smartphone interface protection, and industrial handheld terminals requiring stable component supply and full traceability.

Supply support for D3V3H1B2LPQ-7B 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 integrated circuits, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The D3V3H1B2LPQ belongs to Diodes' "Ultra-Low Capacitance TVS" product line, engineered specifically for ESD protection of high-speed digital and analog signal paths in portable and automotive electronics where board space and signal integrity are critical constraints.

FAQ

What is the maximum operating temperature for D3V3H1B2LPQ-7B?

The D3V3H1B2LPQ-7B is rated for operation from -65°C to +150°C junction temperature. Its thermal resistance (R_θJA = 500°C/W) assumes mounting on a standard FR-4 PCB with Diodes' recommended 2oz copper pad layout. Derating begins above +25°C ambient, reaching 50% power capability at +125°C ambient per Figure 1 in DS42166.

Is D3V3H1B2LPQ-7B compatible with lead-free reflow soldering processes?

Yes. D3V3H1B2LPQ-7B uses NiPdAu-plated copper leadframe and is fully compatible with standard lead-free reflow profiles (peak temperature ≤260°C). It meets J-STD-020 moisture sensitivity level 1, requiring no pre-bake prior to assembly. The package is also halogen- and antimony-free per Diodes' "Green" definition.

How does the clamping voltage change with different surge currents?

Clamping voltage increases with surge magnitude: 7.0V at 1A (IEC 61000-4-5 test), rising to 9.5V at 40A (8/20µs waveform). This behavior is documented in Table "Electrical Characteristics" of DS42166 Rev. 1-2. The device maintains stable clamping up to its 380W peak pulse power rating without thermal runaway.

Can D3V3H1B2LPQ-7B be used for CAN bus protection?

No. D3V3H1B2LPQ-7B is not rated for CAN FD or classical CAN voltage levels (dominant recessive swing up to 5V differential). Its 3.3V V_RWM and 9.5V clamping at 40A are optimized for low-voltage data lines (USB, HDMI, audio), not automotive serial bus signaling. Use Diodes' AP7215xx or SP1006 series for CAN-specific protection.