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Microchip Technology MXPLAD36KP30CAE3
- Part No.:
- MXPLAD36KP30CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MXPLAD36KP30CAE3.pdf
- Description:
- TVS DIODE 30VWM 48.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:4,380
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Product details
Overview
MXPLAD36KP30CAE3 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power systems. It delivers 36,000 W peak pulse power at 10/1000 μs, features a 30 V reverse standoff voltage (VWM), clamps to ≤48.8 V at 738 A peak pulse current (IPP), and operates across –55 °C to +150 °C junction temperature.
For engineers reviewing the MXPLAD36KP30CAE3 datasheet, MXPLAD36KP30CAE3 pinout, MXPLAD36KP30CAE3 application, or MXPLAD36KP30CAE3 equivalent, this device is selected for secondary lightning protection per IEC 61000-4-5 (with 2–42 Ω source impedance), RTCA DO-160F Waveform 4 & 5A pin injection immunity, and high-reliability load dump suppression where low thermal resistance and RoHS-compliant packaging are required.
Technical Context
This TVS uses an avalanche diode structure optimized for multi-stroke lightning transients and fast-rising ESD/EFT events. Its bidirectional construction enables symmetrical clamping for AC-coupled or floating signal/power lines, and its metal-base package provides direct thermal path to PCB copper or heatsink with RθJC = 1.0 °C/W.
It meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options. The device is rated for 3σ lot norm screening on standby current (ID), and its clamping response time is <5 ns - critical for protecting sensitive analog front-ends and digital controllers against induced RFI and switching transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains aircraft-grade lightning surges without failure |
| Reverse Standoff Voltage (VWM) | 30 V - maximum continuous DC or RMS AC voltage before conduction begins |
| Breakdown Voltage (V(BR)) | 33.3–36.8 V @ 5 mA - ensures reliable turn-on margin above operating rail |
| Max Clamping Voltage (VC) | 48.8 V @ 738 A - limits downstream voltage stress during worst-case surge |
| Peak Pulse Current (IPP) | 738 A @ 10/1000 μs - defines surge current handling capacity under standard waveform |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to PCB copper or external heatsink |
| Operating Temperature Range | –55 °C to +150 °C - qualified for under-hood automotive and avionics environments |
Pinout & Package
MXPLAD36KP30CAE3 is housed in a void-free transfer-molded thermosetting epoxy PLAD package (UL94V-0), with tin-plated terminals solderable per MIL-STD-750 Method 2026. The metal base serves as the cathode for unidirectional variants; for bidirectional devices like MXPLAD36KP30CAE3, both terminals are symmetrical and non-polarized.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Electrically symmetrical - interchangeable connection point for AC or floating circuits |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically symmetrical - interchangeable connection point; no polarity marking required |
| Metal Base | Thermal Interface / Mechanical Ground | Provides low-RθJC path to PCB copper pour or heatsink; not electrically isolated |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled data lines, transformer-isolated supplies, and floating bus architectures without polarity concerns |
| RTCA DO-160F Waveform 4 & 5A compliance | Validated for Level 4 (Waveform 4) and Level 5 (Waveform 5A) pin injection immunity in aircraft electronics |
| IEC 61000-4-5 secondary lightning protection | Rated for Class 1–5 protection with 2–42 Ω source impedance - covers long- and short-distance coupling scenarios |
| AEC-Q101 qualification | Qualified for automotive under-hood applications including alternator load dump and battery reverse polarity events |
| RoHS-compliant (e3 plating) | Meets EU RoHS Directive 2011/65/EU with annealed matte-tin terminal finish and lead-free assembly compatibility |
Applications
| Aerospace Avionics Power Protection | Automotive Alternator Load Dump Suppression |
|---|---|
|
Use Scenario: Protecting 28 V DC power distribution networks in commercial aircraft against RTCA DO-160 Section 22 multi-stroke lightning transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed at power entry point to clamp surges before they reach DC-DC converters and flight control modules. Use Value: With 36 kW PPP rating and <5 ns response, MXPLAD36KP30CAE3 prevents latch-up or burnout in downstream PMICs during repeated lightning strikes. |
Use Scenario: Safeguarding engine control units (ECUs) and infotainment systems during 12 V automotive alternator load dump events (ISO 7637-2 Pulse 5a/b). IC Role / Device Role / Timing Role: Primary overvoltage clamp on main battery feed line, mounted directly to copper pour for minimal inductance. Use Value: Clamps to 48.8 V at 738 A while maintaining <1.0 °C/W thermal resistance - avoids thermal runaway during sustained 400 ms transients. |
| Industrial Motor Drive DC Bus Protection | Railway Signaling Interface Protection |
|
Use Scenario: Shielding IGBT gate drivers and current sensors on 30 V auxiliary DC bus in variable-frequency drives subjected to IEC 61000-4-5 surges. IC Role / Device Role / Timing Role: Secondary surge protector parallel to bulk capacitance, absorbing residual energy after upstream MOVs. Use Value: Bidirectional symmetry allows use on floating bus segments; 30 V VWM aligns precisely with 24 V nominal + 25% tolerance rails. |
Use Scenario: Hardening 30 V signaling interfaces in European railway signaling cabinets against induced surges from nearby traction currents (EN 50121-4). IC Role / Device Role / Timing Role: TVS deployed across differential pair or single-ended input to protect RS-485 transceivers and optocouplers. Use Value: Meets EN 61000-4-5 Class 3 (2 Ω source) and Class 4 (42 Ω source) with verified clamping stability across –40 °C to +85 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA | Lower PPP (600 W), smaller SMB package, higher RθJA (50 °C/W), no AEC-Q101 or DO-160 qualification | Suitable only for consumer-grade or low-energy industrial I/O protection - not for aerospace or automotive primary protection | Select when cost and board space are prioritized over multi-stroke surge endurance and qualification traceability |
| SMCJ30CA | Higher PPP (1500 W), SMC package, RθJA ≈ 25 °C/W, qualified to AEC-Q101 but not DO-160 or MIL-PRF-19500 | Applicable for automotive ECUs requiring basic load dump protection, but insufficient for aircraft lightning standards | Choose for mid-tier automotive applications where 36 kW capability is unnecessary and footprint constraints allow SMC size |
Compared with SMBJ30CA and SMCJ30CA, MXPLAD36KP30CAE3 delivers 24× and 24× higher peak pulse power respectively, supports full DO-160F and MIL-PRF-19500 upscreening, and provides 1.0 °C/W thermal resistance - making it uniquely suited for mission-critical aerospace and high-reliability industrial surge protection where single-event robustness and multi-stroke endurance are mandatory.
Availability
MXPLAD36KP30CAE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive ECU power management, and industrial motor drive applications requiring stable component supply, long-term lifecycle support, and traceable high-reliability sourcing.
Supply support for MXPLAD36KP30CAE3 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 solutions for aerospace, defense, and industrial markets.
The MPLAD family was engineered specifically for high-power, surface-mount transient suppression in safety-critical platforms - emphasizing low thermal resistance, multi-stroke survivability, and qualification to RTCA DO-160, AEC-Q101, and MIL-PRF-19500 standards.
FAQ
What is the clamping voltage of MXPLAD36KP30CAE3 at its rated peak pulse current?
The MXPLAD36KP30CAE3 has a maximum clamping voltage (VC) of 48.8 V at its rated peak pulse current of 738 A under 10/1000 μs waveform conditions. This value is measured across the terminals with proper PCB thermal design and represents the upper limit of voltage imposed on protected circuitry during worst-case surge events. The MXPLAD36KP30CAE3 maintains this clamping performance consistently across its operational temperature range.
Is MXPLAD36KP30CAE3 suitable for automotive under-hood applications?
Yes, MXPLAD36KP30CAE3 is AEC-Q101 qualified and rated for operation from –55 °C to +150 °C, making it suitable for under-hood automotive applications such as alternator load dump protection. Its 30 V VWM aligns with 24 V nominal systems, and its 36 kW PPP rating exceeds ISO 7637-2 Pulse 5a/b requirements. The MXPLAD36KP30CAE3 also supports optional MIL-PRF-19500 upscreening for enhanced reliability in safety-critical vehicle subsystems.
Does MXPLAD36KP30CAE3 meet RTCA DO-160 lightning protection requirements?
Yes, MXPLAD36KP30CAE3 is explicitly validated for RTCA DO-160F Section 22 multi-stroke lightning protection. It achieves Level 4 for Waveform 4 (6.4/69 μs) and Level 5 for Waveform 5A (40/120 μs) pin injection testing. The MXPLAD36KP30CAE3's low clamping voltage, sub-5 ns response, and thermal design enable compliance across temperature and mounting configurations specified in DO-160.
What is the thermal resistance from junction to case for MXPLAD36KP30CAE3?
The junction-to-case thermal resistance (RθJC) of MXPLAD36KP30CAE3 is 1.0 °C/W, measured with the metal base mounted to a controlled heatsink per test condition. This low value is achieved via direct metal-base thermal conduction and enables effective heat dissipation during repetitive surge events. When designing with MXPLAD36KP30CAE3, PCB copper area and thermal vias beneath the base must be optimized to realize this RθJC performance in actual layout.
How does the bidirectional construction of MXPLAD36KP30CAE3 affect its circuit placement?
The bidirectional construction of MXPLAD36KP30CAE3 eliminates polarity sensitivity, allowing it to be placed across AC-coupled lines, transformer-isolated buses, or floating differential pairs without orientation constraints. Unlike unidirectional TVS diodes, MXPLAD36KP30CAE3 provides symmetrical clamping in both directions - essential for protecting balanced interfaces or systems where voltage reversal may occur. Its terminals are functionally identical, simplifying layout and reducing BOM complexity.
MXPLAD36KP30CAE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30V
- Voltage - Breakdown (Min):
- 33.3V
- Voltage - Clamping (Max) @ Ipp:
- 48.8V
- Current - Peak Pulse (10/1000µs):
- 738A
- Power - Peak Pulse:
- 36000W (36kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PLAD
MXPLAD36KP30CAE3 FAQ
1.How can I place an order for MXPLAD36KP30CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXPLAD36KP30CAE3 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MXPLAD36KP30CAE3 reliable?
The price and inventory of MXPLAD36KP30CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXPLAD36KP30CAE3 is usually 5 days.
3.What payment methods are accepted for MXPLAD36KP30CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXPLAD36KP30CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXPLAD36KP30CAE3?
MXPLAD36KP30CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXPLAD36KP30CAE3 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MXPLAD36KP30CAE3?
For technical support, including MXPLAD36KP30CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXPLAD36KP30CAE3 requirements.
6.How does Aetrix verify that MXPLAD36KP30CAE3 is sourced from the original manufacturer or authorized distributors?
All MXPLAD36KP30CAE3 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MXPLAD36KP30CAE3 meets industry standards.
7.What is the process for return or replacement of MXPLAD36KP30CAE3?
All MXPLAD36KP30CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXPLAD36KP30CAE3, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MXPLAD36KP30CAE3 part is unused and in its original packaging.
Return procedure for MXPLAD36KP30CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXPLAD36KP30CAE3 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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