Microchip Technology MADA3KP30AE3

Overview

MADA3KP30AE3 from Microsemi is a unidirectional 3000 W surface-mount transient voltage suppressor (TVS) array with 30 V standoff voltage (VWM), 33.3–36.8 V breakdown voltage (V(BR)), and 48.4 V clamping voltage (VC) at 62 A peak pulse current. It provides secondary lightning protection per IEC61000-4-5 (42 Ω, Class 1–4), ESD/EFT suppression per IEC61000-4-2/4-4, and inductive switching transient protection in DC power rails.

For engineers reviewing the MADA3KP30AE3 datasheet, MADA3KP30AE3 pinout, MADA3KP30AE3 application, or MADA3KP30AE3 equivalent, key selection criteria include its 30 V working voltage, 48.4 V clamping performance at 62 A, RoHS-compliant e3 marking, -55°C to +150°C operating range, and MIL-PRF-19500 upscreening capability for high-reliability aerospace and defense systems.

Technical Context

The MADA3KP30AE3 is a single-channel unidirectional TVS diode designed for robust overvoltage protection in high-energy surge environments. Its silicon avalanche structure delivers sub-100 ps response time and withstands 3000 W peak pulse power at 10/1000 µs waveform with full surge testing per production lot.

It operates as a shunt-clamping device triggered above 33.3 V breakdown, limiting transient voltages to ≤48.4 V at 62 A while maintaining <2 µA standby leakage at 30 V. The device supports high-reliability applications via wafer/lot traceability and optional MIL-PRF-19500 screening including 3σ lot norm on ID.

Key Specifications

Pinout & Package

Package: Void-free transfer-molded thermosetting epoxy case (UL94V-0), 5 g weight, 21.03 × 6.86 × 8.64 mm (L×W×H). 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 SMBJ30A and SMCJ30A, the MADA3KP30AE3 delivers double the pulse power handling of SMCJ30A and five times that of SMBJ30A, with verified upscreening support and full lot surge validation-making it the only choice for mission-critical 3000 W transient environments requiring traceable high-reliability assurance.

Availability

MADA3KP30AE3 is available at Aetrix Electronics and suitable for industrial motor drives, avionics power distribution, and telecom base station DC feeds requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MADA3KP30AE3 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 and mixed-signal ICs, RF solutions, and radiation-hardened components for aerospace, defense, and industrial markets.

The MDA3KP series was engineered specifically for high-energy transient suppression in safety-critical infrastructure, combining military-grade screening readiness with commercial SMT manufacturability and IEC-compliant surge performance.

FAQ

What is the clamping voltage of the MADA3KP30AE3 at its rated peak pulse current?

The MADA3KP30AE3 has a maximum clamping voltage (VC) of 48.4 V at 62 A peak pulse current (IPP), measured under 10/1000 µs waveform conditions. This value ensures downstream components see no more than 48.4 V during worst-case surge events, directly supporting design margin calculations for 30 V rail systems. The MADA3KP30AE3 maintains this clamping performance across its full operating temperature range.

Is the MADA3KP30AE3 RoHS compliant and what does the 'e3' suffix indicate?

Yes, the MADA3KP30AE3 is RoHS compliant, as confirmed by the 'e3' suffix in its part number per Microsemi's nomenclature guide. The 'e3' designation specifies annealed matte-tin plating and full compliance with EU Directive 2011/65/EU, including lead content below 1000 ppm. This enables compatibility with lead-free reflow profiles up to 260°C for 10 seconds without degradation.

Does the MADA3KP30AE3 support MIL-PRF-19500 screening and what does that entail?

Yes, the MADA3KP30AE3 supports optional MIL-PRF-19500 upscreening, including wafer-level lot traceability, 3σ lot norm screening on standby current (ID), and conformance inspections per Micronote 129. This makes the MADA3KP30AE3 suitable for aerospace and defense applications where process control, burn-in, and radiation tolerance documentation are contractually required.

What is the polarity configuration of the MADA3KP30AE3 and how is pin 1 identified?

The MADA3KP30AE3 is a unidirectional TVS with cathode on Pin 1 and anode on Pin 2. Pin 1 is identified by a molded dot on the top surface of the package, consistent with Microsemi's mechanical drawing RF01243. This polarity must be observed during PCB layout to ensure correct clamping direction relative to the protected line and ground reference.

How does the MADA3KP30AE3 perform under elevated ambient temperatures?

The MADA3KP30AE3 follows a defined derating curve (Figure 3 in RF01243 Rev B): at 100°C ambient, its 3000 W peak pulse power rating reduces to ~70% (~2100 W), and at 125°C it drops to ~50% (~1500 W). Engineers must apply this derating when designing for high-temperature enclosures or under-hood automotive applications to maintain safe clamping margins.