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Microchip Technology MXPLAD36KP14CA
- Part No.:
- MXPLAD36KP14CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MXPLAD36KP14CA.pdf
- Description:
- TVS DIODE 14VWM 24VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:8,893
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Product details
Overview
MXPLAD36KP14CA from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 36,000 W peak pulse power at 10/1000 μs, features a 14 V reverse standoff voltage (VWM), clamps to ≤24.0 V at 3000 A, and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MXPLAD36KP14CA datasheet, MXPLAD36KP14CA pinout, MXPLAD36KP14CA application, or MXPLAD36KP14CA equivalent, this device is selected for secondary lightning protection per IEC 61000-4-5 (42 Ω, 12 Ω, 2 Ω source impedances), pin-injection immunity per RTCA/DO-160F Waveform 4 & 5A, and ESD/EFT compliance per IEC 61000-4-2/4-4.
Technical Context
This TVS operates as a bidirectional avalanche diode with symmetrical clamping behavior, enabling protection of AC-coupled or differential signal lines without polarity concerns. Its low thermal resistance (RθJC = 1.0 °C/W) and void-free UL94V-0 epoxy package support high-reliability mounting on FR4 PCBs with recommended pad layout.
It is surge-tested per AEC-Q101 and supports MIL-PRF-19500 upscreening options (MX reliability level). Standby current (ID) is 3000 μA max at VWM, and breakdown occurs at 15.6–17.2 V with ±10 mV/°C temperature coefficient - critical for stable clamping across -55°C to +150°C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V - maximum continuous operating voltage before conduction begins; must exceed circuit's peak working voltage. |
| V(BR) min/max | 15.6–17.2 V - guaranteed avalanche onset range at 5 mA; defines minimum clamping threshold under surge. |
| VC @ IPP | 24.0 V max at 3000 A - maximum clamped voltage during 10/1000 μs surge; determines protected circuit's overvoltage stress. |
| PPP | 36,000 W - peak pulse power handling at 10/1000 μs; enables robust lightning strike suppression without failure. |
| IPP | 3000 A - peak impulse current capability; validates compliance with DO-160 Level 4/5 and IEC 61000-4-5 Class 5. |
| RθJC | 1.0 °C/W - junction-to-case thermal resistance; allows direct heatsinking to PCB copper or external metal for sustained duty cycles. |
| TJ/TSTG | -55°C to +150°C - qualified operating and storage range; suitable for under-hood automotive and avionics environments. |
Pinout & Package
MXPLAD36KP14CA uses a surface-mount PLAD package (void-free thermosetting epoxy, UL94V-0 rated) with two terminals: anode and cathode symmetrically arranged on opposite ends of the rectangular body. The metal base serves as thermal path and mechanical anchor; polarity marking applies only to unidirectional variants - bidirectional devices like MXPLAD36KP14CA have no polarity designation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge current entry point (bidirectional) | Accepts transient energy from either direction; connects to protected line (e.g., RS-485 bus, sensor input). |
| Cathode | Surge current return path (bidirectional) | Completes low-inductance path to ground plane; requires low-impedance PCB copper pour for effective clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or differential interfaces (e.g., CAN FD, RS-422) without polarity-sensitive layout. |
| 36 kW peak pulse rating | Withstands multi-stroke lightning events per RTCA DO-160 Section 22, eliminating need for cascaded protection stages. |
| Low RθJC = 1.0 °C/W | Permits direct thermal coupling to PCB ground plane or heatsink, supporting >0.05% duty cycle operation without derating. |
| IEC 61000-4-5 compliance (42/12/2 Ω) | Validated for secondary lightning protection across all classes (1–5) depending on source impedance - simplifies system-level certification. |
| RTCA/DO-160F Waveform 4 & 5A immunity | Meets Level 4 (up to 300CA) and Level 5 (up to 300CA for Waveform 4, 38CA for Waveform 5A) pin-injection requirements. |
Applications
| Aerospace Avionics Power Bus | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protecting 28 V DC aircraft power distribution networks against induced lightning transients and load dump events. IC Role / Device Role / Timing Role: Bidirectional TVS placed across main power rail to clamp surges before they reach downstream regulators and FPGAs. Use Value: Meets RTCA DO-160 Section 22 multi-stroke lightning standard and IEC 61000-4-5 Class 5 (42 Ω), reducing need for redundant protection layers. | Use Scenario: Safeguarding 12 V/24 V engine control module inputs against alternator load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary surge suppression element on battery-supplied sensor and actuator interfaces. Use Value: Clamps to 24.0 V at 3000 A while maintaining <100 ps response time, preventing latch-up or damage to MCU I/O pins. |
| Industrial Motor Drive Communications | Railway Signaling Interface |
Use Scenario: Shielding RS-485 fieldbus lines in variable-frequency drives exposed to switching-induced RFI and ground potential differences. IC Role / Device Role / Timing Role: Bidirectional TVS installed across differential pair to suppress common-mode surges without disrupting data integrity. Use Value: Symmetrical clamping ensures equal protection on both A/B lines, preserving signal margin and meeting EN 50121-4 immunity requirements. | Use Scenario: Securing 70 V DC trackside signaling circuits against lightning-induced surges in outdoor rail infrastructure. IC Role / Device Role / Timing Role: Secondary protection device deployed after gas discharge tube (GDT) front-end to limit let-through voltage. Use Value: Achieves <24.0 V clamping at 3000 A with 2 Ω source impedance, satisfying EN 50121-4 Class 4 requirements for long-distance lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14CA | 600 W PPP rating, SMC package, 24.4 V clamping at 22.5 A - 133× lower peak power than MXPLAD36KP14CA. | Only suitable for low-energy ESD/EFT; cannot meet DO-160 lightning or IEC 61000-4-5 Class 4/5. | Select when cost and board space constrain design and surge threats are limited to IEC 61000-4-2/4-4. |
| SMCJ14CA | 1500 W PPP rating, same SMC package, 24.4 V clamping at 61.5 A - 24× lower peak power than MXPLAD36KP14CA. | Supports basic ISO 7637-2 Pulse 5a but fails DO-160 Section 22 and IEC 61000-4-5 Class 5 testing. | Choose for automotive infotainment or body electronics where full aerospace-grade surge immunity is not required. |
Compared with SMBJ14CA and SMCJ14CA, MXPLAD36KP14CA provides 36 kW pulse handling - essential for certified lightning protection - while maintaining identical 14 V standoff and bidirectional symmetry, making it irreplaceable in safety-critical avionics and rail signaling designs.
Availability
MXPLAD36KP14CA is available at Aetrix Electronics and suitable for aerospace avionics, automotive ECU, and industrial motor drive applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for DO-160 and IEC 61000-4-5 compliance.
Supply support for MXPLAD36KP14CA 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, RF, timing, and power solutions for aerospace, defense, and industrial markets.
The MPLAD series was developed specifically for high-power, surface-mount transient suppression in mission-critical systems - emphasizing thermal robustness, multi-stroke endurance, and qualification to RTCA DO-160, AEC-Q101, and MIL-PRF-19500 standards.
FAQ
What is the clamping voltage of MXPLAD36KP14CA at its rated peak pulse current?
The MXPLAD36KP14CA has a maximum clamping voltage (VC) of 24.0 V at its rated peak pulse current (IPP) of 3000 A under 10/1000 μs waveform conditions. This value is measured across the device terminals during standardized surge testing and defines the upper voltage limit imposed on protected circuitry during worst-case transients.
Does MXPLAD36KP14CA require heatsinking for continuous operation?
MXPLAD36KP14CA does not require external heatsinking for single-event surge suppression, but its RθJC of 1.0 °C/W enables effective thermal transfer to PCB copper when mounted per recommended pad layout. For repetitive surges (>0.05% duty factor), thermal design must account for steady-state dissipation (PD = 2.5 W at TA = 25°C) using the provided derating curve (Figure 3).
Is MXPLAD36KP14CA compliant with RoHS and REACH regulations?
Yes, MXPLAD36KP14CA is RoHS compliant (e3 marking), using annealed matte-tin plating per MIL-STD-750 Method 2026 and void-free UL94V-0 epoxy packaging. Full REACH SVHC declaration and conflict minerals reporting are available upon request through Aetrix Electronics' compliance portal for MXPLAD36KP14CA.
Can MXPLAD36KP14CA be used in place of unidirectional TVS diodes like MPLAD36KP14A?
No - MXPLAD36KP14CA is bidirectional and lacks polarity marking, whereas MPLAD36KP14A is unidirectional with cathode on the metal base. Substituting MXPLAD36KP14CA for MPLAD36KP14A may compromise protection in DC-biased circuits where asymmetrical clamping is required; always verify circuit topology and surge directionality before interchange.
What is the moisture sensitivity level (MSL) for MXPLAD36KP14CA?
MXPLAD36KP14CA has IPC/JEDEC J-STD-020B Moisture Sensitivity Level 1, meaning it is not moisture-sensitive and requires no dry pack or baking prior to reflow soldering. This simplifies manufacturing flow and eliminates MSL-related handling constraints for MXPLAD36KP14CA in high-volume SMT assembly.
MXPLAD36KP14CA 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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 24V
- Current - Peak Pulse (10/1000µs):
- 1500A (1.5kA)
- 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
MXPLAD36KP14CA FAQ
1.How can I place an order for MXPLAD36KP14CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MXPLAD36KP14CA 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 MXPLAD36KP14CA reliable?
The price and inventory of MXPLAD36KP14CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXPLAD36KP14CA is usually 5 days.
3.What payment methods are accepted for MXPLAD36KP14CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXPLAD36KP14CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXPLAD36KP14CA?
MXPLAD36KP14CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXPLAD36KP14CA 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 MXPLAD36KP14CA?
For technical support, including MXPLAD36KP14CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXPLAD36KP14CA requirements.
6.How does Aetrix verify that MXPLAD36KP14CA is sourced from the original manufacturer or authorized distributors?
All MXPLAD36KP14CA 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 MXPLAD36KP14CA meets industry standards.
7.What is the process for return or replacement of MXPLAD36KP14CA?
All MXPLAD36KP14CA units undergo pre-shipment inspection (PSI). If there is an issue with MXPLAD36KP14CA, 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 MXPLAD36KP14CA part is unused and in its original packaging.
Return procedure for MXPLAD36KP14CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXPLAD36KP14CA Tags
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