Microchip Technology MAPLAD36KP130CA

Overview

MAPLAD36KP130CA from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 36 kW peak pulse power at 10/1000 μs, features a 130 V reverse standoff voltage (VWM), clamps to ≤209 V at 173 A peak pulse current (IPP), and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.

For engineers reviewing the MAPLAD36KP130CA datasheet, MAPLAD36KP130CA pinout, MAPLAD36KP130CA application, or MAPLAD36KP130CA equivalent, key selection criteria include its bidirectional polarity, 1.0 °C/W junction-to-case thermal resistance, IEC 61000-4-5 Class 4 compliance with 2 Ω source impedance, and suitability for secondary lightning protection in avionics power distribution units.

Technical Context

This TVS diode operates as a voltage-clamped crowbar device during transients, leveraging avalanche breakdown to divert surge energy away from protected circuitry. Its bidirectional construction enables symmetrical clamping for AC-coupled or floating signal/power lines, and its low R_θJC of 1.0 °C/W supports direct mounting to metal-core PCBs or heatsinks for sustained multi-pulse operation.

It is qualified per AEC-Q101 and supports MIL-PRF-19500 upscreening options. Electrical behavior is defined by precise V(BR) = 144–159 V at I(BR) = 5 mA, V_C ≤ 209 V at I_PP = 173 A, and standby leakage ID ≤ 10 μA at VWM = 130 V - all specified at 25°C with derating above 25°C per Figure 3.

Key Specifications

Pinout & Package

MAPLAD36KP130CA uses a surface-mount PLAD package with two terminals: anode and cathode. The metal base serves as the cathode terminal for unidirectional variants; for bidirectional devices like MAPLAD36KP130CA, both terminals are symmetrical and non-polarized - no dedicated anode/cathode marking required.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SMBJ130CA and SMCJ130CA, MAPLAD36KP130CA provides 24× and 24× higher peak pulse power respectively, validated multi-stroke lightning performance, and lower thermal resistance - making it the only option for certified avionics and high-reliability automotive power modules.

Availability

MAPLAD36KP130CA is available at Aetrix Electronics and suitable for avionics power distribution, automotive ECU protection, and industrial motor drive inputs requiring stable component supply across extended production lifecycles.

Supply support for MAPLAD36KP130CA 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) designs high-reliability semiconductor solutions for aerospace, defense, and industrial markets, with emphasis on radiation-hardened ICs, timing devices, and surge protection components.

MAPLAD36KP130CA belongs to the PLAD family of high-power surface-mount TVS diodes engineered specifically for certified lightning and load-dump protection in safety-critical platforms where multi-stroke endurance and thermal stability are mandatory.

FAQ

What does the "CA" suffix indicate in MAPLAD36KP130CA?

The "CA" suffix denotes bidirectional construction, meaning MAPLAD36KP130CA provides symmetrical clamping for both positive and negative transients without polarity sensitivity. This differs from unidirectional variants (e.g., MAPLAD36KP130A), which require correct anode/cathode orientation and only clamp in one direction. Bidirectionality makes MAPLAD36KP130CA ideal for AC-coupled interfaces and floating DC systems.

Is MAPLAD36KP130CA qualified for automotive applications?

Yes, MAPLAD36KP130CA is AEC-Q101 qualified, confirming its reliability under automotive-grade temperature cycling, mechanical shock, and humidity testing. It is explicitly rated for load dump protection per ISO 7637-2 and supports high-current surge handling up to 173 A - making MAPLAD36KP130CA suitable for engine control units, body control modules, and ADAS power supplies.

How does MAPLAD36KP130CA perform under repeated lightning strikes?

MAPLAD36KP130CA is validated per RTCA DO-160 Section 22 for multi-stroke lightning, supporting ≥1000A impulse repetition at ≤0.05% duty factor. Its 1.0 °C/W junction-to-case thermal resistance and void-free epoxy package minimize cumulative heating, enabling MAPLAD36KP130CA to sustain repeated 36 kW surges without parametric shift or failure - a requirement for aircraft power system certification.

What is the clamping voltage of MAPLAD36KP130CA at its rated peak pulse current?

The maximum clamping voltage VC of MAPLAD36KP130CA is 209 V at its rated peak pulse current IPP of 173 A under 10/1000 μs waveform conditions. This value is guaranteed across temperature and lot variations, ensuring downstream circuitry sees no more than 209 V during worst-case surge events - critical for protecting 200 V-rated MOSFETs and 150 V-rated capacitors in protected systems.

Does MAPLAD36KP130CA require moisture-sensitive handling?

No, MAPLAD36KP130CA has IPC/JEDEC J-STD-020B Moisture Sensitivity Level 1, meaning it may be stored indefinitely at ambient conditions without dry packing or baking prior to reflow. This eliminates moisture-related popcorning risk during lead-free soldering and simplifies manufacturing logistics - a key advantage of MAPLAD36KP130CA over higher-MSL alternatives.