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Microchip Technology MPLAD36KP280A/TR
- Part No.:
- MPLAD36KP280A/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP280A/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:5,422
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Product details
Overview
MPLAD36KP280A/TR 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 36 kW peak pulse power at 10/1000 μs, clamps transients to ≤451 V at 80 A peak impulse current, and features a 280 V working standoff voltage with <100 ps response time. It is qualified to AEC-Q101 and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MPLAD36KP280A/TR datasheet, MPLAD36KP280A/TR pinout, MPLAD36KP280A/TR application, or MPLAD36KP280A/TR equivalent, this device is selected for high-reliability DC bus protection where low thermal resistance (1.0 °C/W junction-to-case), RoHS-compliant matte-tin terminals, and IEC 61000-4-5 Class 4 compliance with 12 Ω source impedance are critical design requirements.
Technical Context
This TVS diode operates in avalanche breakdown mode with a specified breakdown voltage range of 311–345 V at 5 mA test current and exhibits a temperature coefficient of 344 mV/°C. Its metal-base cathode construction enables direct thermal coupling to heatsinks, supporting continuous power dissipation up to 504 W at 100 °C case temperature.
The PLAD package integrates void-free UL94V-0 epoxy molding and tin-lead or RoHS-compliant annealed matte-tin plating, ensuring solderability per MIL-STD-750 Method 2026. Polarity is defined by the metal base acting as cathode, requiring PCB layout alignment to avoid reverse-bias failure during surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 36,000 W at 10/1000 μs - supports single-event lightning surge handling without thermal runaway |
| Working Standoff Voltage (VWM) | 280 V - maximum continuous DC or repetitive peak voltage before conduction begins |
| Clamping Voltage (VC) | ≤451 V at 80 A IPP - limits downstream circuit voltage during worst-case surge |
| Breakdown Voltage (VBR) | 311–345 V at 5 mA - defines precise avalanche initiation threshold for predictable protection onset |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to external heatsink for sustained surge duty cycles |
| Response Time | <100 ps - ensures sub-nanosecond turn-on for fast-rising transients like ESD or inductive switching |
| Standby Current (ID) | ≤10 µA at 280 V - negligible leakage during normal operation, preserving system efficiency |
Pinout & Package
The MPLAD36KP280A/TR uses the PLAD surface-mount package: a low-profile, thermally enhanced molded epoxy case with exposed metal base serving as the cathode terminal. The anode is accessed via the top-side metallized pad. Package dimensions conform to Microsemi's Figure 6 outline drawing; recommended pad layout is specified in Figure 7.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode | Primary thermal path and high-current return node; must be soldered to large copper pour or heatsink |
| Top Metallized Pad | Anode | Input-side connection point; routed to protected line (e.g., 24/28 VDC bus or battery feed) |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW Surge Rating | Validated at 10/1000 μs waveform - enables single-device protection against automotive load dump and DO-160 lightning strokes |
| AEC-Q101 Qualification | Qualified for automotive underhood applications including engine control units and ADAS power supplies |
| RoHS-Compliant Matte-Tin Plating | Meets MIL-STD-750 Method 2026 solderability - ensures reliable reflow attachment on lead-free PCBs |
| Level 1 Moisture Sensitivity | No dry pack required per IPC/JEDEC J-STD-020D.1 - eliminates baking step prior to assembly |
| Traceable Wafer & Assembly Lots | Enables full lot-level reliability tracking for aerospace and defense programs requiring strict configuration control |
Applications
| Aerospace Avionics Power Bus Protection | Automotive 24 VDC Load Dump Suppression |
|---|---|
Use Scenario: Protecting flight-critical 28 VDC distribution buses in commercial aircraft against RTCA DO-160G Section 22 multi-stroke lightning surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between bus rail and chassis ground to shunt surge energy away from downstream regulators and FPGAs. Use Value: Achieves Level 4/5 pin-injection protection per Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs) without derating at +85 °C ambient. |
Use Scenario: Safeguarding engine control modules and body control units during alternator load dump events in heavy-duty trucks. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main battery feed line, activated within 100 ps to limit bus voltage to ≤451 V. Use Value: Withstands 1500 A forward surge current (IFSM) and maintains clamping performance after repeated 100 A impulses per ISO 7637-2 Pulse 5a. |
| Industrial 24/48 VDC PLC Power Input | Railway Rolling Stock Battery Interface |
Use Scenario: Securing programmable logic controller inputs against induced transients from nearby motor drives and contactor switching. IC Role / Device Role / Timing Role: Secondary protection stage following upstream MOVs, providing precise 280 V standoff and low-leakage (<10 µA) hold-off. Use Value: Enables IEC 61000-4-5 Class 4 compliance with 12 Ω source impedance while maintaining <1.0 °C/W thermal resistance for convection-cooled enclosures. |
Use Scenario: Protecting onboard battery management systems in metro trains against regenerative braking surges and lightning-induced coupling on 110 VDC traction batteries. IC Role / Device Role / Timing Role: Bidirectional-capable variant family member (though MPLAD36KP280A/TR is unidirectional) used in polarity-agnostic DC link protection schemes. Use Value: Delivers 36 kW pulse rating with validated 150 °C max junction temperature - meets EN 50124-1 insulation coordination requirements for rolling stock. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ280A | Lower 600 W peak power rating; SMA package with 55 °C/W RθJA vs. PLAD's 1.0 °C/W | Restricted to low-energy ESD/EFT; unsuitable for DO-160 lightning or load dump | Select only for space-constrained consumer electronics where surge energy ≤100 J |
| SMCJ280A | Same 280 V VWM, but 1500 W rating and SMC package; RθJC = 2.5 °C/W | Limited to single-stroke automotive transients; fails DO-160 multi-stroke validation | Acceptable for cost-sensitive industrial controls with infrequent surges and forced-air cooling |
Compared with SMBJ280A and SMCJ280A, the MPLAD36KP280A/TR provides 24× higher pulse power, 2.5× lower thermal resistance, and certified multi-stroke endurance - making it the only option for mission-critical aerospace and heavy-duty automotive power bus protection.
Availability
MPLAD36KP280A/TR is available at Aetrix Electronics and suitable for aerospace avionics, automotive powertrain, and industrial PLC applications requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP280A/TR 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 power management solutions for aerospace, defense, and industrial markets.
The MPLAD36KP280A/TR belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for multi-stroke lightning protection and automotive load dump suppression in harsh-environment systems.
FAQ
What is the clamping voltage of MPLAD36KP280A/TR at its rated peak pulse current?
The MPLAD36KP280A/TR has a maximum clamping voltage (VC) of 451 V when subjected to its rated peak impulse current (IPP) of 80 A using the 10/1000 μs waveform. This value is measured per standard test conditions in the datasheet and defines the upper voltage limit imposed on protected circuits during surge events. The MPLAD36KP280A/TR maintains this clamping performance across its full operating temperature range of –55 °C to +150 °C.
Is MPLAD36KP280A/TR suitable for bidirectional surge protection?
No, MPLAD36KP280A/TR is a unidirectional TVS diode, with polarity defined by its metal base cathode. For bidirectional protection, Microsemi offers the MPLAD36KP280CA variant (CA suffix). Using MPLAD36KP280A/TR in reverse-biased configurations will result in immediate breakdown and potential failure. Always verify polarity alignment during PCB layout to ensure the cathode connects to system ground or the lower-potential rail.
Does MPLAD36KP280A/TR require moisture sensitivity level (MSL) baking before reflow soldering?
No, MPLAD36KP280A/TR is rated MSL Level 1 per IPC/JEDEC J-STD-020D.1, meaning it may be stored indefinitely at ambient conditions (≤30 °C / 60% RH) without desiccant or dry packing. No pre-reflow baking is required, simplifying manufacturing flow and reducing risk of popcorn cracking during reflow. This is enabled by the void-free UL94V-0 epoxy molding compound used in the PLAD package.
How does the thermal performance of MPLAD36KP280A/TR compare to standard SMC or SMB packages?
MPLAD36KP280A/TR achieves a junction-to-case thermal resistance (RθJC) of 1.0 °C/W - over 2× better than typical SMC packages (~2.5 °C/W) and more than 50× better than SMB packages (~55 °C/W). This is achieved via its exposed metal base, which serves as both cathode and primary thermal interface. Effective heatsinking allows MPLAD36KP280A/TR to sustain 504 W of steady-state power at 100 °C case temperature, far exceeding standard TVS capabilities.
What certifications and standards does MPLAD36KP280A/TR meet?
MPLAD36KP280A/TR is AEC-Q101 qualified for automotive use and validated to RTCA DO-160G Section 22 for multi-stroke lightning protection. It also meets IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and IEC 61000-4-5 (surge) with 12 Ω and 42 Ω source impedances. All units undergo 100% surge testing, and wafer/assembly lots are fully traceable to support aerospace configuration management requirements.
MPLAD36KP280A/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 280V
- Voltage - Breakdown (Min):
- 311V
- Voltage - Clamping (Max) @ Ipp:
- 451V
- Current - Peak Pulse (10/1000µs):
- 80A
- Power - Peak Pulse:
- 36000W (36kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PLAD
MPLAD36KP280A/TR FAQ
1.How can I place an order for MPLAD36KP280A/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP280A/TR 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 MPLAD36KP280A/TR reliable?
The price and inventory of MPLAD36KP280A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP280A/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP280A/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP280A/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP280A/TR?
MPLAD36KP280A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP280A/TR 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 MPLAD36KP280A/TR?
For technical support, including MPLAD36KP280A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP280A/TR requirements.
6.How does Aetrix verify that MPLAD36KP280A/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP280A/TR 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 MPLAD36KP280A/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP280A/TR?
All MPLAD36KP280A/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP280A/TR, 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 MPLAD36KP280A/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP280A/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP280A/TR Tags
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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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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Diodes Incorporated
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