Microchip Technology MADA3KP30CAE3

Overview

MADA3KP30CAE3 from Microsemi is a bidirectional 3000 W transient voltage suppressor (TVS) array in a surface-mount package, designed for high-reliability surge protection of DC power lines and signal interfaces. It features a 30 V standoff voltage (VWM), 33.3–36.8 V breakdown range (V(BR)), 48.4 V maximum clamping voltage at 62 A peak pulse current, and operates from −55 °C to +150 °C - deployed in industrial power supplies and telecom infrastructure against lightning-induced transients.

For engineers reviewing the MADA3KP30CAE3 datasheet, MADA3KP30CAE3 pinout, MADA3KP30CAE3 application, or MADA3KP30CAE3 equivalent, key selection criteria include bidirectional polarity, IEC61000-4-5 Class 1–4 secondary lightning compliance with 2–42 Ω source impedance, 10/1000 µs surge rating, RoHS-compliant matte-tin plating, and MIL-PRF-19500 upscreening eligibility.

Technical Context

The MADA3KP30CAE3 is a monolithic TVS array built using silicon avalanche technology, delivering sub-nanosecond response (<5 ns) to transient overvoltages. Its bidirectional construction enables symmetrical clamping on AC-coupled or floating lines without polarity concerns.

It meets IEC61000-4-5 secondary lightning standards across multiple source impedances (2 Ω, 12 Ω, 42 Ω), supporting Class 1–4 protection levels depending on test configuration. The device is surge-tested per 10/1000 µs waveform and rated for 3000 W peak pulse power at 25 °C, with derating above 25 °C per Figure 3.

Key Specifications

Pinout & Package

Package: TO-277A (vertical surface-mount, 3-pin, void-free epoxy body per UL94V-0; pin 1 marked by dot; odd-numbered pins are cathodes).

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ33CA and SMCJ33CA, the MADA3KP30CAE3 delivers double the surge power handling (3000 W vs. 1500/600 W), supports MIL-PRF-19500 upscreening, and uses a vertical TO-277A package optimized for thermal dissipation in high-density power systems.

Availability

MADA3KP30CAE3 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, and automotive body control modules requiring stable component supply with long-term lifecycle assurance.

Supply support for MADA3KP30CAE3 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 for mission-critical surge protection in harsh environments, emphasizing MIL-PRF-19500 compliance, wide temperature operation, and repeatable 3000 W transient absorption - targeting infrastructure and safety-critical systems.

FAQ

What does the 'C' in MADA3KP30CAE3 indicate?

The 'C' suffix in MADA3KP30CAE3 denotes bidirectional polarity - meaning the device provides symmetrical clamping for both positive and negative transients across its terminals. This is confirmed in the "Part Nomenclature" section of RF01243, Rev B, which states "C suffix indicates bidirectional types." Unlike unidirectional variants (e.g., MADA3KP30AE3), the MADA3KP30CAE3 has no inherent anode/cathode orientation between Pins 1 and 3, enabling use on AC-coupled or floating lines without polarity concerns.

Is MADA3KP30CAE3 RoHS compliant?

Yes, MADA3KP30CAE3 is RoHS compliant, as indicated by the 'e3' suffix in the part number. Per RF01243, Rev B, "e3 = RoHS Compliant" and specifies matte-tin plating per MIL-STD-750, method 2026. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits defined in Directive 2011/65/EU, and is suitable for environmentally regulated end equipment.

What is the maximum clamping voltage of MADA3KP30CAE3 and at what current?

The maximum clamping voltage (VC) of MADA3KP30CAE3 is 48.4 V, measured at a peak pulse current (IPP) of 62 A under 10/1000 µs waveform conditions. This value is specified in the Electrical Characteristics table on page 3 of RF01243, Rev B. It defines the upper voltage limit imposed on protected circuitry during worst-case surge events, ensuring downstream components remain within safe operating voltage margins.

Can MADA3KP30CAE3 be used for IEC61000-4-5 Class 4 lightning protection?

Yes, MADA3KP30CAE3 supports IEC61000-4-5 Class 4 secondary lightning protection when tested with a 42 Ω source impedance, as explicitly stated in the Applications/Benefits section of RF01243, Rev B. For Class 4 compliance at 2 Ω or 12 Ω source impedances, the datasheet restricts coverage to lower-voltage variants (e.g., MDA3KP6.0CA to MDA3KP9.0A); MADA3KP30CAE3 is validated only for 42 Ω Class 4 testing.

Does MADA3KP30CAE3 require moisture preconditioning before reflow?

No, MADA3KP30CAE3 does not require moisture preconditioning before reflow soldering. Per RF01243, Rev B, it carries IPC/JEDEC J-STD-020B moisture sensitivity Level 1, meaning it has unlimited floor life at ≤30 °C/60% RH and no dry-pack or baking is needed prior to assembly. This simplifies manufacturing flow and eliminates risk of popcorning during standard Pb-free reflow profiles.