Diodes Incorporated DT1240-02LP10-7B

Overview

DT1240-02LP10 from Diodes Incorporated is a 2-channel low-capacitance CSP TVS diode array designed for ESD protection of high-speed data lines. It delivers 6V minimum breakdown voltage, 5.5A IEC 61000-4-5 lightning surge rating, and 0.75pF max channel input capacitance, enabling use in USB 2.0 and HDMI™ interfaces without signal integrity degradation.

For engineers reviewing the DT1240-02LP10 datasheet, DT1240-02LP10 pinout, DT1240-02LP10 application, or DT1240-02LP10 equivalent, key selection criteria include clamping voltage at 5.5A (9.4V), dynamic resistance (0.25Ω), ESD immunity (±16kV contact/air), and CSP package compatibility with fine-pitch portable PCB layouts.

Technical Context

This TVS array uses silicon avalanche diode structures in a dual-channel monolithic CSP to provide bidirectional transient suppression between I/O lines and VSS. Each channel features matched breakdown characteristics and low parasitic capacitance optimized for <1GHz signal paths.

It operates within -55°C to +85°C ambient range and achieves 55W peak pulse power (8/20µs) per channel while maintaining sub-1pF input capacitance at 2.5V bias - critical for preserving eye diagram margins in USB 2.0 and DVI™ applications.

Key Specifications

Pinout & Package

X3-DSN1006-3 is a 3-terminal chip-scale package with exposed silicon sidewalls (electrically active); solder mask must avoid side-wall contact. Terminals are NiAu bumps compatible with standard Pb-free reflow profiles.

Key Features

Applications

Availability

DT1240-02LP10 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI™ data lane hardening, and IEEE 1394 port surge suppression requiring stable component supply in high-volume portable electronics manufacturing.

Supply support for DT1240-02LP10 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, specializing in high-reliability protection, power management, and signal integrity solutions for consumer, industrial, and computing markets.

The DT1240-02LP10 belongs to Diodes' advanced TVS diode array product line, engineered specifically for ESD and surge protection of high-speed serial interfaces where low capacitance and precise clamping are mandatory.

FAQ

Is DT1240-02LP10 still in production?

No. Diodes Incorporated has officially discontinued DT1240-02LP10 and marked it as obsolete with no alternate part offered. The datasheet (DS38730 Rev. 4) explicitly states "PART OBSOLETE – PART DISCONTINUED" and confirms no replacement is designated by the manufacturer.

What is the thermal resistance of DT1240-02LP10?

The typical junction-to-ambient thermal resistance (R_θJA) is 250°C/W when mounted on a standard FR-4 PCB with 2oz copper and Diodes' recommended pad layout. This value assumes natural convection cooling and defines safe power dissipation limits under sustained DC conditions.

Can DT1240-02LP10 be used for unidirectional protection?

No. DT1240-02LP10 is a bidirectional TVS array with symmetrical avalanche structure per channel. Its schematic shows anode terminals (Pins 1 and 2) tied to I/O lines and a common cathode (Pin 3) to VSS, enabling clamping of both positive and negative transients without polarity constraints.

What does the "MJ" marking on the device indicate?

"MJ" is the product type marking code laser-etched on the top surface of the X3-DSN1006-3 package. It uniquely identifies the DT1240-02LP10 variant within Diodes' TVS portfolio and corresponds to the ordering information listed in the datasheet's packaging table.