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Microchip Technology MPLAD18KP60AE3
- Part No.:
- MPLAD18KP60AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD18KP60AE3.pdf
- Description:
- TVS DIODE 60VWM 96.8VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:7,848
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Product details
Overview
MPLAD18KP60AE3 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 ≤96.8 V under 100 A peak impulse current, and features a 60 V reverse standoff voltage (VWM) with ±5% breakdown tolerance (66.7–73.7 V). It is RoHS-compliant (e3), AEC-Q101 qualified, and used for lightning and load-dump protection in avionics power inputs.
For engineers reviewing the MPLAD18KP60AE3 datasheet, MPLAD18KP60AE3 pinout, MPLAD18KP60AE3 application, or MPLAD18KP60AE3 equivalent, key selection criteria include its 60 V working voltage, 96.8 V max clamping at 100 A, 0.7 °C/W junction-to-case thermal resistance, and compliance with RTCA DO-160F Waveform 4 Level 4 and IEC 61000-4-5 Class 1–5 secondary lightning protection.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode on the metal base (package bottom), enabling low-inductance mounting directly to heatsinks. Its silicon avalanche structure provides sub-100 ps response time and stable breakdown behavior over -55°C to +150°C junction temperature range.
It is characterized for multi-stroke surge endurance per RTCA DO-160 Section 22 and supports secondary lightning protection per IEC 61000-4-5 with 2 Ω, 12 Ω, and 42 Ω source impedances - specifically rated for Class 1–5 at 42 Ω, Class 1–4 at 12 Ω, and Class 2–3 at 2 Ω impedance configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60 V maximum continuous reverse standoff voltage - sets upper limit of normal operating voltage before clamping initiates |
| V(BR) min/max | 66.7–73.7 V breakdown range at I(BR) - ensures reliable turn-on margin above VWM |
| VC @ IPP | ≤96.8 V clamping voltage at 100 A peak pulse - defines worst-case voltage seen by protected circuit during surge |
| PPP | 18,000 W peak pulse power at 10/1000 μs - enables handling of high-energy transients like automotive load dump |
| RθJC | 0.7 °C/W junction-to-case thermal resistance - allows efficient heat transfer to PCB copper or external heatsink |
| ID @ VWM | ≤10 μA standby leakage at 60 V - minimizes power loss and avoids false triggering in high-impedance circuits |
| Package | Surface-mount PLAD package with metal base - provides mechanical robustness and low thermal impedance for high-reliability mounting |
Pinout & Package
The MPLAD18KP60AE3 uses a 2-terminal surface-mount PLAD package with exposed metal base acting as the cathode terminal. The anode is accessible via the top-side metallized pad. Mounting requires thermal pad layout per Microsemi RF01215 Rev B (page 7) for optimal RθJA performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary heat path and return path for surge current; must be soldered to large copper pour or heatsink |
| Top Metallized Pad | Anode | Input connection point for transient energy; low-inductance routing recommended |
Key Features
| Feature | Design Value |
|---|---|
| 18 kW peak pulse rating | Enables single-device protection against severe transients including RTCA DO-160F Waveform 4 Level 4 (6.4/69 μs) and IEC 61000-4-5 Class 5 surges |
| AEC-Q101 qualification | Validates reliability for automotive power electronics including engine control units and battery management systems |
| 0.7 °C/W RθJC | Supports sustained surge duty cycles when mounted on thermally optimized PCBs or heatsinks |
| RoHS-compliant e3 finish | Meets environmental compliance requirements without compromising solderability or long-term intermetallic stability |
| Traceable wafer and assembly lots | Enables full supply chain accountability for aerospace and defense applications requiring MIL-PRF-19500 upscreening options |
Applications
| Aerospace Power Input Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: Protecting avionics DC power inputs (28 V nominal) against lightning-induced surges per RTCA DO-160F Section 22. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed at main power entry point to divert surge current away from downstream regulators and FPGAs. Use Value: Meets Waveform 4 Level 4 (6.4/69 μs) and Waveform 5A Level 4 (40/120 μs) requirements while maintaining <96.8 V clamping to preserve 3.3 V/5 V logic rail integrity. | Use Scenario: Safeguarding vehicle infotainment and ADAS ECUs during alternator load dump events (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: Primary surge clamp on 12 V or 24 V battery rail, positioned upstream of DC-DC converters and microcontrollers. Use Value: Absorbs 18,000 W pulses without degradation, limiting bus voltage to ≤96.8 V and preventing latch-up or gate oxide damage in downstream MOSFETs and PMICs. |
| Industrial Motor Drive DC Bus Protection | Rail-to-Rail Surge Protection in Telecom Power Systems |
Use Scenario: Shielding IGBT gate drivers and current sensors on 400–800 V DC bus lines from switching-induced transients and EFT bursts. IC Role / Device Role / Timing Role: Secondary clamping element across bus rails, coordinated with primary MOVs to reduce let-through energy. Use Value: Sub-100 ps response time ensures clamping activation before sensitive gate drivers experience overvoltage stress, preserving system uptime and reducing field failure rates. | Use Scenario: Securing 48 V telecom rectifier outputs against induced surges from nearby lightning strikes or AC line faults. IC Role / Device Role / Timing Role: Standoff-rated TVS on output stage, selected for 60 V VWM to accommodate 48 V nominal + 20% tolerance and ripple. Use Value: 96.8 V clamping ceiling ensures compatibility with 100 V-rated electrolytic capacitors and prevents overvoltage tripping in downstream PoE controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ60A | 600 W PPP rating, SMB package, 101 V clamping at 6.5 A IPP - 30× lower peak power than MPLAD18KP60AE3 | Only suitable for low-energy ESD/EFT; cannot meet DO-160F Level 4 or ISO 7637-2 Pulse 5a | Select only for cost-sensitive consumer-grade designs where surge energy is limited to <100 mJ |
| SMCJ60A | 1500 W PPP rating, SMC package, 96.8 V clamping at 15.4 A IPP - 12× lower peak power than MPLAD18KP60AE3 | Valid for IEC 61000-4-5 Class 3 but not Class 4/5; insufficient for multi-stroke lightning testing | Use where space constraints prohibit PLAD footprint but higher energy capability than SMBJ is required |
Compared with SMBJ60A and SMCJ60A, the MPLAD18KP60AE3 delivers 12–30× greater peak pulse power in a thermally optimized surface-mount package, enabling compliance with the most stringent aerospace and automotive surge standards - making it irreplaceable for mission-critical power rail protection where single-event energy exceeds 10 J.
Availability
MPLAD18KP60AE3 is available at Aetrix Electronics and suitable for aerospace power conditioning, automotive ECU protection, and industrial motor drive DC bus stabilization requiring stable component supply across extended production lifecycles.
Supply support for MPLAD18KP60AE3 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 ICs for aerospace, defense, and industrial markets.
The MPLAD series was developed specifically for high-power, surface-mount transient suppression in safety-critical platforms where thermal performance, multi-stroke endurance, and regulatory compliance (DO-160, AEC-Q101, IEC 61000-4-5) are mandatory design requirements.
FAQ
What is the clamping voltage of MPLAD18KP60AE3 at its rated peak pulse current?
The MPLAD18KP60AE3 has a maximum clamping voltage (VC) of 96.8 V at 100 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value is guaranteed across temperature and represents the highest voltage the protected circuit will experience during a full-rated surge event. The clamping performance is validated per Figure 3 in RF01215 Rev B and remains stable due to the device's low dynamic impedance and optimized silicon junction design.
Is MPLAD18KP60AE3 suitable for bidirectional surge protection?
No, MPLAD18KP60AE3 is a unidirectional TVS diode - its polarity designation "A" (not "CA") confirms single-quadrant operation. For bidirectional protection at 60 V standoff, the correct variant is MPLAD18KP60CA. Using MPLAD18KP60AE3 in AC-coupled or bipolar signal paths will result in forward conduction during negative transients, potentially causing failure or incorrect clamping behavior.
Does MPLAD18KP60AE3 require derating at elevated ambient temperatures?
Yes, MPLAD18KP60AE3 requires thermal derating above 25°C ambient. Its steady-state power dissipation drops from 2.5 W at TA = 25°C to 71 W at TC = 100°C, reflecting its dependence on case temperature rather than ambient. Engineers must use the derating curve in Figure 3 (RF01215 Rev B) and ensure proper copper area or heatsinking to maintain TJ ≤ 150°C during repeated surge events.
What is the significance of the "e3" suffix in MPLAD18KP60AE3?
Can MPLAD18KP60AE3 be used without a heatsink in standard FR4 PCB layouts?
MPLAD18KP60AE3 can operate without an external heatsink when mounted on FR4 with the recommended thermal pad layout (per RF01215 Rev B, page 7), but its RθJA is 50 °C/W - meaning even modest steady-state power causes significant junction heating. For single-pulse surge events, the metal base provides sufficient thermal mass; however, for repetitive surges (>0.05% duty cycle), direct attachment to a heatsink or internal copper plane is required to prevent thermal runaway and ensure long-term reliability.
MPLAD18KP60AE3 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):
- 60V
- Voltage - Breakdown (Min):
- 66.7V
- Voltage - Clamping (Max) @ Ipp:
- 96.8V
- Current - Peak Pulse (10/1000µs):
- 186A
- 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
MPLAD18KP60AE3 FAQ
1.How can I place an order for MPLAD18KP60AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD18KP60AE3 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 MPLAD18KP60AE3 reliable?
The price and inventory of MPLAD18KP60AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD18KP60AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD18KP60AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD18KP60AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD18KP60AE3?
MPLAD18KP60AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD18KP60AE3 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 MPLAD18KP60AE3?
For technical support, including MPLAD18KP60AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD18KP60AE3 requirements.
6.How does Aetrix verify that MPLAD18KP60AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD18KP60AE3 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 MPLAD18KP60AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD18KP60AE3?
All MPLAD18KP60AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD18KP60AE3, 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 MPLAD18KP60AE3 part is unused and in its original packaging.
Return procedure for MPLAD18KP60AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD18KP60AE3 Tags
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