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Microchip Technology MXLPLAD36KP26AE3
- Part No.:
- MXLPLAD36KP26AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MXLPLAD36KP26AE3.pdf
- Description:
- TVS DIODE 26VWM 43VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:2,363
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Product details
Overview
MXLPLAD36KP26AE3 from Microsemi is a high-reliability, surface-mount transient voltage suppressor (TVS) designed for secondary lightning and load dump protection in aerospace and automotive systems. It delivers 36 kW peak pulse power at 10/1000 μs, features a 26 V reverse standoff voltage (VWM), unidirectional polarity, and RoHS-compliant e3 plating - validated per AEC-Q101 and MIL-PRF-19500 screening levels.
For engineers reviewing the MXLPLAD36KP26AE3 datasheet, MXLPLAD36KP26AE3 pinout, MXLPLAD36KP26AE3 application, or MXLPLAD36KP26AE3 equivalent, key selection criteria include clamping voltage under 43.0 V at 838 A IPP, thermal resistance of 1.0 °C/W junction-to-case, and compliance with RTCA DO-160F Waveform 4 Level 4 and IEC 61000-4-5 Class 5 (short distance) requirements.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode on the metal base (package bottom), optimized for low-inductance, high-current surge suppression. Its thermally enhanced plastic package achieves RθJC = 1.0 °C/W and supports steady-state dissipation up to 71 W at TC = 100°C when mounted on a heatsink.
It meets multi-stroke lightning standards including RTCA DO-160 Section 22 and provides ESD/EFT immunity per IEC 61000-4-2/4-4. The device is surge-tested to 1000 A and rated for operation across –55°C to +150°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 26 V - maximum continuous operating voltage before clamping initiates |
| V(BR) min/max | 28.9–31.9 V - breakdown voltage range at 5 mA, defining turn-on threshold consistency |
| VC @ IPP | 43.0 V max at 838 A - clamping voltage during 10/1000 μs surge, limiting downstream voltage stress |
| PPP | 36,000 W - peak pulse power handling capability under standard waveform, enabling robust lightning strike absorption |
| RθJC | 1.0 °C/W - enables efficient heat transfer to heatsink, critical for repeated surge events |
| TJ range | –55°C to +150°C - qualified for extreme environmental operation in avionics and engine bay applications |
| ID @ VWM | 10 μA max - ultra-low leakage ensures minimal standby power impact in always-on systems |
Pinout & Package
MXLPLAD36KP26AE3 uses a surface-mount PLAD package with metal-base cathode configuration. The device has two terminals: anode (top metallization) and cathode (exposed metal base), requiring thermal pad layout per datasheet Figure "PAD LAYOUT" (A = 0.470", B = 0.230", C = 0.100").
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive input terminal | Connected to protected line; current flows into device during reverse surge |
| Cathode | Negative return / heat sink interface | Exposed metal base serves as both electrical return and primary thermal path to PCB/heatsink |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW peak pulse rating | Enables single-device protection against severe lightning-induced transients per DO-160F Section 22 |
| MIL-PRF-19500 upscreening option (MXL level) | Supports high-reliability aerospace programs requiring lot traceability and extended screening |
| AEC-Q101 qualification | Validates robustness for automotive powertrain and chassis electronics exposed to load dump |
| RoHS-compliant e3 plating | Ensures lead-free solder compatibility and long-term reliability without tin whisker risk |
| Level 1 moisture sensitivity | Eliminates dry-pack requirement and floor-life constraints, simplifying SMT assembly logistics |
Applications
| Aerospace Avionics Power Input | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protection of 28 V DC aircraft bus inputs against lightning-induced surges per RTCA DO-160F Waveform 4 Level 4. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed at board-level power entry point. Use Value: Limits clamped voltage to ≤43.0 V during 838 A transients, preserving downstream DC-DC converters and microcontrollers. | Use Scenario: Load dump suppression on 12 V/24 V automotive battery-fed ECU power rails per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Primary surge clamp absorbing up to 36 kW energy without failure. Use Value: Withstands ≥1000 surge cycles at 838 A while maintaining VWM stability, ensuring long-term field reliability. |
| Industrial Motor Drive DC Bus | Railway Signaling Power Interface |
Use Scenario: Protection of 24–48 V DC bus in variable-frequency drives against switching-induced transients and induced RFI. IC Role / Device Role / Timing Role: Fast-response unidirectional TVS suppressing sub-100 ns rise-time spikes. Use Value: Clamps within <100 ps, preventing gate driver latch-up and IGBT short-circuit failures during commutation. | Use Scenario: Secondary lightning protection for 110 V DC signaling interfaces in trackside cabinets per EN 50121-4. IC Role / Device Role / Timing Role: Class 5-compliant TVS with 42 Ω source impedance per IEC 61000-4-5. Use Value: Delivers 36 kW pulse handling at 26 V standoff, meeting strict railway EMC immunity requirements without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ26A | 600 W PPP rating, 3.5 kW peak for 10/1000 μs, DO-214AA package, RθJC ≈ 40 °C/W | Limited to single-stroke surges; unsuitable for DO-160F multi-stroke or repeated load dump | Select only for cost-sensitive, low-energy industrial controls where 36 kW capability is unnecessary |
| SMCJ26A | 1500 W PPP, 15 kW peak for 10/1000 μs, DO-214AB package, RθJC ≈ 15 °C/W | Cannot meet DO-160F Level 4 or IEC 61000-4-5 Class 5 without parallel staging | Consider for space-constrained designs needing >1 kW but lacking full 36 kW requirement or aerospace qualification |
Compared with SMBJ26A and SMCJ26A, MXLPLAD36KP26AE3 provides 24× and 2.4× higher peak pulse power respectively, with certified AEC-Q101/MIL-PRF-19500 screening, lower RθJC, and validated DO-160F/IEC 61000-4-5 compliance - making it the only drop-in solution for high-reliability aerospace and heavy-duty automotive surge protection.
Availability
MXLPLAD36KP26AE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive powertrain systems, and industrial motor drive applications requiring stable component supply, long-term lifecycle support, and certified high-reliability surge protection.
Supply support for MXLPLAD36KP26AE3 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 PLAD series was developed to deliver ultra-high-power, surface-mount TVS protection for mission-critical systems where traditional through-hole or lower-power packages fail under multi-stroke lightning or automotive load dump stress.
FAQ
What is the clamping voltage specification for MXLPLAD36KP26AE3?
The MXLPLAD36KP26AE3 has a maximum clamping voltage (VC) of 43.0 V at 838 A peak pulse current under 10/1000 μs waveform conditions. This value is measured per standard test methods and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping performance is guaranteed across the full operating temperature range and validated in production surge testing.
Is MXLPLAD36KP26AE3 qualified for automotive applications?
Yes, MXLPLAD36KP26AE3 is AEC-Q101 qualified and specifically designed for automotive powertrain and chassis modules subject to load dump transients. Its 36 kW peak pulse rating, 26 V standoff, and thermal design enable reliable operation in engine control units, battery management systems, and ADAS power supplies where ISO 7637-2 Pulse 5a compliance is required.
Does MXLPLAD36KP26AE3 require a heatsink for continuous operation?
MXLPLAD36KP26AE3 does not require a heatsink for transient suppression, but its RθJC = 1.0 °C/W rating assumes mounting on a thermally conductive surface. For steady-state power dissipation above 2.5 W at TA = 25°C, a heatsink is recommended. Derating curves in the datasheet (Figure 3) define safe operating limits based on case temperature (TC), with 71 W allowable at TC = 100°C.
What does the "MXL" prefix indicate in MXLPLAD36KP26AE3?
The "MXL" prefix in MXLPLAD36KP26AE3 denotes Microsemi's highest reliability screening level per MIL-PRF-19500, including wafer lot traceability, 3σ lot norm screening on standby current (ID), and extended environmental stress testing. This level exceeds standard commercial or industrial grades and is specified for aerospace and defense programs requiring zero-defect assurance and long-term BOM stability.
Can MXLPLAD36KP26AE3 be used in bidirectional configurations?
No, MXLPLAD36KP26AE3 is unidirectional only, as indicated by the "A" suffix (not "CA"). Bidirectional variants such as MPLAD36KP26CA exist but differ in internal construction and polarity behavior. Using MXLPLAD36KP26AE3 in bidirectional signal paths would result in forward conduction during negative transients, potentially damaging the device or system. Always verify polarity alignment in schematic and layout.
MXLPLAD36KP26AE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 43V
- Current - Peak Pulse (10/1000µs):
- 838A
- 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
MXLPLAD36KP26AE3 FAQ
1.How can I place an order for MXLPLAD36KP26AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLPLAD36KP26AE3 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 MXLPLAD36KP26AE3 reliable?
The price and inventory of MXLPLAD36KP26AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLPLAD36KP26AE3 is usually 5 days.
3.What payment methods are accepted for MXLPLAD36KP26AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLPLAD36KP26AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLPLAD36KP26AE3?
MXLPLAD36KP26AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLPLAD36KP26AE3 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 MXLPLAD36KP26AE3?
For technical support, including MXLPLAD36KP26AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLPLAD36KP26AE3 requirements.
6.How does Aetrix verify that MXLPLAD36KP26AE3 is sourced from the original manufacturer or authorized distributors?
All MXLPLAD36KP26AE3 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 MXLPLAD36KP26AE3 meets industry standards.
7.What is the process for return or replacement of MXLPLAD36KP26AE3?
All MXLPLAD36KP26AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXLPLAD36KP26AE3, 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 MXLPLAD36KP26AE3 part is unused and in its original packaging.
Return procedure for MXLPLAD36KP26AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLPLAD36KP26AE3 Tags
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