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Microchip Technology MPLAD18KP200AE3
- Part No.:
- MPLAD18KP200AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD18KP200AE3.pdf
- Description:
- TVS DIODE 200VWM 322VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:7,051
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Product details
Overview
MPLAD18KP200AE3 from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power systems. It delivers 18,000 W peak pulse power at 10/1000 μs, clamps at ≤322 V under 5 A peak impulse current, and features a 200 V reverse standoff voltage (VWM), 222–245 V breakdown voltage (V(BR)), and 0.7 °C/W junction-to-case thermal resistance.
For engineers reviewing the MPLAD18KP200AE3 datasheet, MPLAD18KP200AE3 pinout, MPLAD18KP200AE3 application, or MPLAD18KP200AE3 equivalent, key selection criteria include IEC 61000-4-5 Class 1–5 secondary lightning protection capability, RTCA DO-160F Waveform 4 Level 4 compliance, RoHS-compliant e3 plating, and thermal performance on FR4 with recommended pad layout.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuitry to divert high-energy transients-such as lightning-induced surges, load dump events, or EFT pulses-away from downstream components. Its low RθJC (0.7 °C/W) enables effective heat transfer to a heatsink or copper plane, supporting sustained multi-stroke operation per RTCA DO-160 Section 22.
The device meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening options. Its unidirectional polarity places the cathode on the metal base (package bottom), requiring correct PCB orientation during placement to ensure proper clamping behavior under forward-biased surge conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 18,000 W @ 10/1000 μs - sustains aircraft-grade lightning surges without failure |
| Reverse Standoff Voltage (VWM) | 200 V - maximum continuous DC or peak AC voltage before clamping initiates |
| Breakdown Voltage (V(BR)) | 222–245 V @ I(BR) - ensures reliable turn-on margin above operating rail |
| Max Clamping Voltage (VC) | 322 V @ IPP = 5 A - limits voltage seen by protected ICs during worst-case surge |
| Junction-to-Case Thermal Resistance | 0.7 °C/W - enables direct thermal coupling to heatsink or large copper pour for duty-cycle derating |
| Steady-State Power Dissipation | 71 W @ TC = 100°C - defines safe continuous power handling when case temperature is actively managed |
| Moisture Sensitivity Level | Level 1 per J-STD-020B - no dry pack or bake required prior to reflow |
Pinout & Package
Package: Surface-mount PLAD (Plastic Leaded Anode Down) with metal base cathode termination. Void-free UL94V-0 epoxy body; tin-lead or RoHS-compliant matte-tin plating; weight ≈1 g; polarity marked via cathode on metal underside.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top side) | Transient current entry point | Connected to protected line (e.g., 200 V bus); conducts during reverse-biased surge |
| Cathode (metal base) | Clamping reference / heat path | Must be soldered to large copper area or heatsink; serves as primary thermal conduction path and ground reference |
Key Features
| Feature | Design Value |
|---|---|
| 18 kW surge rating | Enables single-device protection against RTCA DO-160 Section 22 multi-stroke lightning events |
| 0.7 °C/W RθJC | Allows >70 W steady-state dissipation with 100°C case temperature-critical for automotive load dump hold time |
| IEC 61000-4-5 compliance (42 Ω, 12 Ω, 2 Ω source) | Validated for Class 1–5 secondary lightning protection across multiple impedance profiles |
| RTCA DO-160F Waveform 4 Level 4 | Guarantees pin-injection immunity for avionics interfaces up to 6.4/69 μs waveform at 25°C |
| e3 RoHS plating | Meets lead-free assembly requirements without compromising solderability or intermetallic reliability |
Applications
| Aerospace Avionics Power Bus Protection | Automotive 24 V Load Dump Suppression |
|---|---|
Use Scenario: Protecting flight control unit power inputs from induced lightning transients on aircraft wiring harnesses. IC Role / Device Role / Timing Role: Primary clamping TVS placed directly at connector entry point, shunting surge energy to chassis ground. Use Value: Meets RTCA DO-160F Section 22 multi-stroke requirements with <100 ps response time and no degradation after 1000+ strikes. | Use Scenario: Safeguarding engine control module (ECM) 24 V supply during alternator field-cutoff events. IC Role / Device Role / Timing Role: Unidirectional TVS connected between battery rail and ground, clamping 120 V/400 ms load dump pulses. Use Value: Withstands 18 kW peak power and 71 W steady-state dissipation at TC = 100°C-eliminates need for parallel devices. |
| Industrial DC Power Distribution Panel | Railway Signaling Interface Protection |
Use Scenario: Securing 200 V DC traction power monitoring circuits against switching transients in rail substations. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted upstream of isolation amplifiers and ADC front-ends. Use Value: 200 V VWM aligns precisely with system nominal voltage; 322 V VC ensures downstream 3.3 V/5 V logic remains within absolute max ratings. | Use Scenario: Shielding Ethernet PHY and CAN transceivers in wayside signaling cabinets from induced surges on adjacent track circuits. IC Role / Device Role / Timing Role: Bidirectional-capable family member (e.g., MPLAD18KP200CA) used for data line protection; this unidirectional variant applied to DC bias rails. Use Value: Validated for IEC 61000-4-5 Class 4 (42 Ω source) and DO-160F Waveform 5A Level 4-covers both power and signal integrity threats. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200A | 600 W PPP rating, SMB package, RθJA = 40 °C/W, no MIL-PRF-19500 screening option | Limited to single-stroke industrial surges; not qualified for DO-160 or AEC-Q101 | Select when cost sensitivity outweighs aerospace/automotive qualification needs and surge energy is <1 kJ |
| SMCJ200A | 1500 W PPP, SMC package, RθJC = 1.5 °C/W, no DO-160 waveform validation | Suitable for basic IEC 61000-4-5 Class 3 but lacks multi-stroke endurance and thermal margin | Choose for commercial-grade 200 V rail protection where board space allows larger SMC footprint and thermal management is passive |
Compared with SMBJ200A and SMCJ200A, the MPLAD18KP200AE3 provides 30× higher peak pulse power, 2.1× lower thermal resistance, and formal qualification for aviation and automotive environments-making it the only option for mission-critical 200 V DC systems requiring multi-event survivability.
Availability
MPLAD18KP200AE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive ECM power systems, and industrial 200 V DC distribution panels requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MPLAD18KP200AE3 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 (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 series was developed specifically for high-energy transient suppression in safety-critical platforms-emphasizing multi-stroke endurance, thermal robustness, and qualification to RTCA DO-160, AEC-Q101, and IEC 61000-4-5 standards.
FAQ
What is the clamping voltage of MPLAD18KP200AE3 at its rated peak pulse current?
The MPLAD18KP200AE3 has a maximum clamping voltage (VC) of 322 V at 5 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value ensures protected downstream circuitry-such as 3.3 V or 5 V logic interfaces-is not exposed to destructive overvoltage during surge events. The clamping behavior is verified per Figure 3 in RF01215 Rev B and applies across the full operating temperature range.
Does MPLAD18KP200AE3 meet AEC-Q101 qualification requirements?
Yes, MPLAD18KP200AE3 is tested in accordance with AEC-Q101 requirements for discrete semiconductors. The device undergoes stress testing including HTGB, HTRB, TST, and surge current validation. This qualification confirms suitability for automotive under-hood and powertrain applications where reliability under thermal cycling and high-energy transients is mandatory. Full test reports are available upon request from Microchip.
How should the cathode terminal of MPLAD18KP200AE3 be mounted on the PCB?
The cathode of MPLAD18KP200AE3 is located on the metal base (underside) of the PLAD package and must be soldered to a thermally robust copper area-ideally a dedicated thermal pad connected to internal ground or heatsink planes. Per RF01215 Rev B, mounting on FR4 with the recommended pad layout achieves RθJA = 50 °C/W. Avoid insulating coatings or solder mask over the cathode region to maintain thermal and electrical integrity.
Is MPLAD18KP200AE3 compliant with RoHS and REACH regulations?
Yes, MPLAD18KP200AE3 carries the "e3" suffix indicating RoHS-compliant matte-tin plating and full compliance with EU RoHS Directive 2011/65/EU and REACH SVHC requirements. The void-free UL94V-0 epoxy body contains no brominated flame retardants. Material declarations and CoC documentation are provided by Microchip for traceability in regulated industries.
Can MPLAD18KP200AE3 be used for bidirectional surge protection?
No, MPLAD18KP200AE3 is a unidirectional TVS diode. For bidirectional protection at 200 V standoff, the functionally matched part is MPLAD18KP200CA (with "CA" suffix). The "A" suffix in MPLAD18KP200AE3 explicitly denotes unidirectional construction, where clamping occurs only during reverse-biased transients; forward conduction is limited to 2.0 V at 500 A per datasheet specification.
MPLAD18KP200AE3 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):
- 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
MPLAD18KP200AE3 FAQ
1.How can I place an order for MPLAD18KP200AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD18KP200AE3 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 MPLAD18KP200AE3 reliable?
The price and inventory of MPLAD18KP200AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD18KP200AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD18KP200AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD18KP200AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD18KP200AE3?
MPLAD18KP200AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD18KP200AE3 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 MPLAD18KP200AE3?
For technical support, including MPLAD18KP200AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD18KP200AE3 requirements.
6.How does Aetrix verify that MPLAD18KP200AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD18KP200AE3 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 MPLAD18KP200AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD18KP200AE3?
All MPLAD18KP200AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD18KP200AE3, 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 MPLAD18KP200AE3 part is unused and in its original packaging.
Return procedure for MPLAD18KP200AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD18KP200AE3 Tags
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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