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Microchip Technology MPLAD18KP200CAE3
- Part No.:
- MPLAD18KP200CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD18KP200CAE3.pdf
- Description:
- TVS DIODE 200VWM 322VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:3,001
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Product details
Overview
MPLAD18KP200CAE3 from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 18,000 W peak pulse power at 10/1000 μs, features a 200 V reverse standoff voltage (VWM), clamps to ≤322 V at 10 A IPP, and meets RTCA DO-160F Level 4 pin injection and IEC 61000-4-5 Class 1–5 secondary lightning protection requirements - deployed in aircraft avionics power rails and engine control units.
For engineers reviewing the MPLAD18KP200CAE3 datasheet, MPLAD18KP200CAE3 pinout, MPLAD18KP200CAE3 application, or MPLAD18KP200CAE3 equivalent, key selection criteria include verified 200 V VWM tolerance, bidirectional clamping symmetry, thermal resistance of 0.7 °C/W junction-to-case, RoHS-compliant e3 plating, and compliance with AEC-Q101 and MIL-PRF-19500 upscreening options.
Technical Context
This TVS diode uses an avalanche breakdown structure optimized for multi-stroke lightning transients per RTCA DO-160 Section 22. Its bidirectional construction enables symmetrical clamping across both polarities without external polarity management, and its low RθJC (0.7 °C/W) supports direct mounting to metal-core PCBs or heatsinks for sustained energy dissipation.
It operates within –55 °C to +150 °C junction temperature range and maintains stable clamping performance under 0.05% duty cycle impulse repetition. Standby current ID is ≤10 μA at 200 V VWM, and temperature coefficient αV(BR) is 243 mV/°C - enabling predictable derating in high-temperature avionics bays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 200 V - maximum continuous DC or peak AC voltage the device blocks without conduction |
| V(BR) min/max | 222–245 V @ I(BR) - guaranteed avalanche initiation window defining turn-on consistency |
| VC @ IPP | ≤322 V @ 10 A - maximum clamped voltage during 10/1000 μs surge, limiting downstream IC stress |
| PPP | 18,000 W @ 10/1000 μs - peak transient energy absorption capacity under standardized waveform |
| RθJC | 0.7 °C/W - enables efficient heat transfer to heatsink, critical for repeated surge events |
| ID @ VWM | ≤10 μA - ultra-low leakage preserves system standby power integrity |
| αV(BR) | 243 mV/°C - quantifies voltage drift with temperature, essential for thermal design margining |
Pinout & Package
Package: Surface-mount PLAD (Plastic Leaded Anodeless Diode) with metal base cathode termination; void-free UL94V-0 epoxy body; 12.32 × 10.54 × 5.08 mm (L×W×H); weight ≈1 g; RoHS-compliant matte-tin (e3) plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top side pad) | Transient current entry point (bidirectional) | Accepts surge current from either polarity; symmetric layout eliminates orientation dependency |
| Cathode (metal base) | Transient current return path & thermal interface | Directly bonded to PCB copper pour or heatsink; primary thermal conduction path (RθJC = 0.7 °C/W) |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal/power lines without polarity constraints |
| RTCA DO-160F Waveform 4 Level 4 compliance | Validated for 6.4/69 μs pin-injection surges at 200 V VWM - required for commercial aircraft flight-critical subsystems |
| IEC 61000-4-5 Class 1–5 support (42 Ω source) | Meets full secondary lightning immunity tier for avionics, industrial drives, and rail traction systems |
| AEC-Q101 qualified | Qualified for automotive under-hood applications including alternator load dump protection |
| MIL-PRF-19500 upscreening option | Supports M, MA, MX, MXL reliability levels with lot traceability and 3σ ID screening for mission-critical programs |
Applications
| Avionics Power Distribution | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protection of 28 V DC bus feeding flight management computers and inertial navigation sensors against lightning-induced transients. IC Role / Device Role / Timing Role: Primary secondary-level TVS on main power input, clamping surges before DC/DC converters. Use Value: Withstands ≥1000 strokes per DO-160 Section 22 while maintaining <10 μA leakage at 200 V VWM - preserving sensor bias stability. | Use Scenario: Load dump suppression on 12 V battery-fed ECU microcontroller supply after alternator voltage spike. IC Role / Device Role / Timing Role: High-power crowbar device absorbing 120 V/400 ms transients per ISO 7637-2 Pulse 5a. Use Value: 18,000 W PPP rating ensures single-event survival without degradation; bidirectional symmetry avoids polarity-sensitive layout. |
| Railway Signaling Interface | Industrial Motor Drive DC Link |
Use Scenario: Shielding Ethernet PHY and CAN transceivers in track-side signaling cabinets from induced surges during nearby lightning strikes. IC Role / Device Role / Timing Role: Bidirectional TVS on isolated data lines referenced to chassis ground, meeting EN 50121-4 immunity. Use Value: Clamps to ≤322 V within <5 ns, limiting transient propagation to <100 ps - preserving signal integrity on 100 Mbps links. | Use Scenario: Protecting IGBT gate drivers and bus voltage monitors in variable-frequency drives exposed to regenerative braking spikes. IC Role / Device Role / Timing Role: DC link clamp suppressing >1 kV switching transients before they reach sensitive analog monitoring circuitry. Use Value: 0.7 °C/W RθJC allows direct mounting to drive heatsink, enabling >1000 surge cycles at 0.05% duty factor without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200CA | 600 W PPP rating, SMB package, RθJC ≈ 35 °C/W | Rated only for IEC 61000-4-5 Class 3 (42 Ω), not DO-160F Level 4 | Select when cost sensitivity outweighs aerospace compliance and surge repetition requirements |
| SMCJ200CA | 1500 W PPP, SMC package, RθJC ≈ 15 °C/W, no AEC-Q101 or MIL-PRF-19500 options | Lacks RTCA DO-160F validation and upscreening; limited to industrial-grade deployments | Choose for non-certified industrial controls where 18 kW capacity is unnecessary |
Compared with SMBJ200CA and SMCJ200CA, the MPLAD18KP200CAE3 provides 30× higher peak power handling, 20× lower thermal resistance, and certified qualification for aviation and automotive safety-critical systems - making it irreplaceable where multi-stroke lightning resilience and traceable reliability are mandatory.
Availability
MPLAD18KP200CAE3 is available at Aetrix Electronics and suitable for avionics power distribution, automotive ECU protection, railway signaling interfaces, and industrial motor drive DC link applications requiring stable component supply across extended product lifecycles.
Supply support for MPLAD18KP200CAE3 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, communications, and industrial markets, with emphasis on radiation-hardened ICs, timing devices, and power protection components.
The MPLAD18KP200CAE3 belongs to Microsemi's high-power PLAD TVS family, engineered specifically for multi-stroke lightning and load-dump immunity in safety-critical platforms where failure is not an option.
FAQ
What is the clamping voltage of MPLAD18KP200CAE3 at its rated peak pulse current?
The MPLAD18KP200CAE3 exhibits a maximum clamping voltage (VC) of 322 V when subjected to a 10 A peak pulse current (IPP) under the standard 10/1000 μs waveform. This value is measured per Figure 3 in RF01215 Rev B and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Does MPLAD18KP200CAE3 meet automotive qualification standards?
Yes, the MPLAD18KP200CAE3 is AEC-Q101 qualified for automotive applications, including under-hood environments subject to load dump transients. Its 200 V VWM and 18,000 W PPP rating make it suitable for protecting engine control units, battery management systems, and ADAS domain controllers against ISO 7637-2 Pulse 5a events without derating.
How does the metal-base cathode configuration of MPLAD18KP200CAE3 impact thermal design?
The metal base of the MPLAD18KP200CAE3 serves as the cathode terminal and primary thermal conduction path, achieving a junction-to-case thermal resistance (RθJC) of just 0.7 °C/W. This requires direct mounting to a thermally robust PCB copper pour or external heatsink - unlike leaded packages - to sustain repeated 18 kW surges without exceeding 150 °C junction temperature.
Is MPLAD18KP200CAE3 compliant with RTCA DO-160F lightning test requirements?
Yes, the MPLAD18KP200CAE3 is validated for RTCA DO-160F Section 22 multi-stroke lightning testing and specifically certified for Waveform 4 (6.4/69 μs) Level 4 pin injection protection at 200 V VWM. This makes it suitable for commercial aircraft flight-critical subsystems where compliance is mandatory for airworthiness certification.
What does the 'E3' suffix indicate in MPLAD18KP200CAE3?
'E3' denotes RoHS-compliant annealed matte-tin plating per J-STD-020B, confirming lead-free terminations and moisture sensitivity level (MSL) 1 - meaning no dry-pack baking is required prior to reflow soldering. This suffix replaces non-RoHS tin-lead plating and aligns with global environmental compliance mandates for aerospace and automotive supply chains.
MPLAD18KP200CAE3 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):
- 200V
- Voltage - Breakdown (Min):
- 222V
- Voltage - Clamping (Max) @ Ipp:
- 322V
- Current - Peak Pulse (10/1000µs):
- 56A
- Power - Peak Pulse:
- 18000W (18kW)
- 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
MPLAD18KP200CAE3 FAQ
1.How can I place an order for MPLAD18KP200CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD18KP200CAE3 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 MPLAD18KP200CAE3 reliable?
The price and inventory of MPLAD18KP200CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD18KP200CAE3 is usually 5 days.
3.What payment methods are accepted for MPLAD18KP200CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD18KP200CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD18KP200CAE3?
MPLAD18KP200CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD18KP200CAE3 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 MPLAD18KP200CAE3?
For technical support, including MPLAD18KP200CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD18KP200CAE3 requirements.
6.How does Aetrix verify that MPLAD18KP200CAE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD18KP200CAE3 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 MPLAD18KP200CAE3 meets industry standards.
7.What is the process for return or replacement of MPLAD18KP200CAE3?
All MPLAD18KP200CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD18KP200CAE3, 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 MPLAD18KP200CAE3 part is unused and in its original packaging.
Return procedure for MPLAD18KP200CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD18KP200CAE3 Tags
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