Microchip Technology MPLAD36KP130AE3

Overview

MPLAD36KP130AE3 from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power systems. It delivers 36 kW peak pulse power at 10/1000 μs, clamps transients to ≤209 V at 173 A peak current, and features a 130 V reverse standoff voltage (VWM) with ±5% breakdown tolerance (144–159 V). It is qualified to AEC-Q101 and supports RTCA DO-160F Level 4/5 pin injection protection.

For engineers reviewing the MPLAD36KP130AE3 datasheet, MPLAD36KP130AE3 pinout, MPLAD36KP130AE3 application, or MPLAD36KP130AE3 equivalent, key selection criteria include its 1.0°C/W junction-to-case thermal resistance, RoHS-compliant matte-tin plating, UL94V-0 void-free epoxy package, and verified compliance with IEC 61000-4-2/4-4/4-5 for ESD, EFT, and secondary lightning protection.

Technical Context

This TVS diode operates as a clamping device in parallel with sensitive circuitry, activating above its 130 V working voltage to divert surge energy away from downstream components. Its low R_θJC of 1.0°C/W enables effective heat transfer to an external heatsink when mounted per recommended pad layout on FR4 PCB.

The device meets multi-stroke lightning immunity per RTCA DO-160 Section 22 and supports IEC 61000-4-5 testing at 2 Ω, 12 Ω, and 42 Ω source impedances - with Class 4 capability up to 130 V standoff under 2 Ω conditions. Standby leakage is limited to 10 μA at V_WM, ensuring minimal system loading during normal operation.

Key Specifications

Pinout & Package

Package: PLAD (Plastic Leaded Anode Down) - surface-mount, low-profile thermoset epoxy case with metal base cathode termination. Dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), weight ~1.85 g. Cathode is the metal base (bottom side); anode is top-side metallization.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ130A and SMCJ130A, the MPLAD36KP130AE3 provides 24× and 24× higher peak power handling respectively, direct heatsink integration via cathode base, and certified compliance with aviation, automotive, and rail EMC standards - making it the only option for mission-critical 130 V surge protection requiring multi-stroke endurance.

Availability

MPLAD36KP130AE3 is available at Aetrix Electronics and suitable for aerospace power distribution, automotive load dump protection, and industrial motor drive DC bus applications requiring stable component supply across extended production lifecycles.

Supply support for MPLAD36KP130AE3 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 (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, and timing solutions for aerospace, defense, and industrial markets.

The MPLAD36KP130AE3 belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for multi-stroke lightning and load-dump immunity in safety-critical platforms where thermal management and qualification rigor are mandatory.

FAQ

What is the clamping voltage of MPLAD36KP130AE3 at its rated peak pulse current?

The MPLAD36KP130AE3 exhibits a maximum clamping voltage (V_C) of 209 V when subjected to its rated peak pulse current of 173 A under 10/1000 μs waveform conditions. This value is measured at the device terminals with proper PCB pad layout and thermal management, ensuring downstream components remain below their absolute maximum voltage ratings during surge events.

Is MPLAD36KP130AE3 qualified for automotive applications per AEC-Q101?

Yes, MPLAD36KP130AE3 is explicitly tested and qualified to AEC-Q101 Rev D for stress testing including HTGB, HTRB, and temperature cycling. Its construction, wafer-level traceability, and surge validation make it suitable for under-hood and powertrain ECUs where load dump and jump-start transients exceed 100 V.

How does the PLAD package of MPLAD36KP130AE3 improve thermal performance compared to standard SMC/SMB packages?

The PLAD package uses a metal base cathode as both electrical terminal and thermal interface, achieving a junction-to-case thermal resistance of just 1.0°C/W - over 20× better than typical SMC packages (~25°C/W). When mounted on a copper heatsink or thick ground plane, this enables sustained multi-pulse operation without thermal runaway, critical for DO-160 multi-stroke compliance.

Does MPLAD36KP130AE3 meet RTCA DO-160F lightning protection requirements?

Yes, MPLAD36KP130AE3 is validated for RTCA DO-160F Section 22 lightning-induced transient susceptibility, including Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs) pin injection tests at Level 4 and Level 5. Its 36 kW rating and low clamping voltage ensure compliance across all aircraft zones when applied per Microsemi's recommended layout guidelines.

What is the polarity configuration and marking convention for MPLAD36KP130AE3?

MPLAD36KP130AE3 is a unidirectional TVS diode with cathode on the metal base (bottom side) and anode on the top metallized surface. There is no visible polarity marking on the body; orientation is defined mechanically - the metal base must be soldered to the system ground or heatsink plane, and the top surface connects to the protected line.