Microchip Technology MXDA3KP11CAE3

Overview

MXDA3KP11CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount DO-214AB package, designed for high-reliability secondary lightning and ESD protection. It features a 11 V reverse standoff voltage (VWM), 12.2–13.5 V breakdown voltage (V(BR)), 18.2 V maximum clamping voltage at 164.8 A peak pulse current, and operates from –55 °C to +150 °C - deployed in telecom power interfaces and industrial I/O protection.

For engineers reviewing the MXDA3KP11CAE3 datasheet, MXDA3KP11CAE3 pinout, MXDA3KP11CAE3 application, or MXDA3KP11CAE3 equivalent, key selection criteria include bidirectional clamping behavior, 10/1000 µs surge rating, IEC61000-4-2/4-4/4-5 compliance, RoHS-compliant matte-tin terminations, and MIL-PRF-19500 upscreening eligibility.

Technical Context

The MXDA3KP11CAE3 implements a silicon avalanche diode structure optimized for sub-nanosecond response (<5 ns) under bidirectional transients. Its clamping action begins at V(BR) min = 12.2 V and limits voltage to ≤18.2 V at IPP = 164.8 A (10/1000 µs waveform), with <2 µA standby current at 11 V.

It is rated for 3000 W peak pulse power per IEC61000-4-5 with 42 Ω source impedance (Class 1–4), supports secondary lightning protection across 2 Ω, 12 Ω, and 42 Ω source impedances, and maintains full performance over –55 °C to +150 °C junction temperature range.

Key Specifications

Pinout & Package

MXDA3KP11CAE3 uses a DO-214AB (SMC) surface-mount package with two terminals: Pin 1 (cathode) and Pin 2 (anode), configured as a bidirectional TVS pair sharing a common center tap - polarity marked by dot on top of package per Microsemi RF01243 Rev B.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar transient voltage suppression applications.

Compared with SMBJ11CA and 1.5KE11CA, MXDA3KP11CAE3 delivers double the surge margin of the former and enables automated SMT assembly unlike the latter - critical for high-volume telecom and industrial systems requiring Class 4 lightning immunity.

Availability

MXDA3KP11CAE3 is available at Aetrix Electronics and suitable for telecom power feeds, industrial PLC I/O ports, automotive body control modules, and medical diagnostic equipment interfaces requiring stable component supply and long-term lifecycle assurance.

Supply support for MXDA3KP11CAE3 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

Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.

The MDA3KP series was developed to deliver MIL-PRF-19500-qualified transient protection for mission-critical systems where failure is not an option - emphasizing surge robustness, lot traceability, and extended temperature operation.

FAQ

What does the 'C' suffix in MXDA3KP11CAE3 indicate?

The 'C' suffix in MXDA3KP11CAE3 denotes bidirectional polarity - meaning the device provides symmetrical clamping for both positive and negative transients across its two terminals. This is confirmed in Microsemi RF01243 Rev B, page 2, "Part Nomenclature", where 'C' is explicitly defined as the bidirectional variant. MXDA3KP11CAE3 thus functions as a single-component solution for AC-coupled or differential signal lines without external polarity biasing.

Is MXDA3KP11CAE3 RoHS compliant?

Yes, MXDA3KP11CAE3 is RoHS compliant, as indicated by the 'e3' suffix per Microsemi RF01243 Rev B, page 2. The 'e3' marking specifies matte-tin plating meeting EU Directive 2011/65/EU requirements. This applies to all standard production lots, and the device is exempt from exemption 7a (lead in high-melting-temperature type solders) due to its tin-lead-free termination system.

What is the maximum clamping voltage of MXDA3KP11CAE3 and under what test condition?

The maximum clamping voltage (VC) of MXDA3KP11CAE3 is 18.2 V, measured at a peak pulse current (IPP) of 164.8 A using the 10/1000 µs double-exponential waveform per IEC61000-4-5. This value is specified in the Electrical Characteristics table on page 3 of Microsemi RF01243 Rev B and represents the worst-case voltage seen by protected circuitry during a full-rated surge event.

Can MXDA3KP11CAE3 be used for IEC61000-4-5 Class 4 lightning protection?

Yes, MXDA3KP11CAE3 is rated for IEC61000-4-5 Class 4 secondary lightning protection with a 42 Ω source impedance, as stated in the Applications/Benefits section (page 1) of RF01243 Rev B. Its 3000 W peak pulse power rating and 164.8 A IPP capability meet the 4 kV open-circuit voltage requirement for Class 4 under that impedance, making it suitable for telecom and industrial infrastructure interfaces.

What is the package type and pin configuration of MXDA3KP11CAE3?

MXDA3KP11CAE3 uses the DO-214AB (SMC) surface-mount package with two terminals: Pin 1 (cathode) and Pin 2 (anode), arranged in a bidirectional configuration. Polarity is marked by a dot on the top surface indicating Pin 1, and the device is symmetric - enabling identical clamping in either direction. Package dimensions are fully detailed on page 6 of RF01243 Rev B.