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Microchip Technology MPLAD36KP7AE3
- Part No.:
- MPLAD36KP7AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP7AE3.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:6,559
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Product details
Overview
MPLAD36KP7AE3 from Microchip (formerly Microsemi) is a surface-mount unidirectional transient voltage suppressor (TVS) rated for 36,000 W peak pulse power at 10/1000 μs, with 7 V working standoff voltage (VWM), 7.78–8.6 V breakdown voltage (VBR) at 150 mA, and 12.0 V clamping voltage (VC) at 3000 A peak impulse current. It delivers lightning and load dump protection in aerospace avionics meeting RTCA DO-160 Section 22.
For engineers reviewing the MPLAD36KP7AE3 datasheet, MPLAD36KP7AE3 pinout, MPLAD36KP7AE3 application, or MPLAD36KP7AE3 equivalent, this device is selected for high-energy transient suppression where low thermal resistance (RθJC = 1.0 °C/W), AEC-Q101 qualification, RoHS compliance (e3 suffix), and IEC 61000-4-5 Class 5 secondary lightning protection are required.
Technical Context
This TVS diode operates in avalanche breakdown mode to clamp overvoltage transients before downstream circuitry sustains damage. Its metal-base PLAD package provides direct thermal path to PCB copper, enabling effective heat dissipation during multi-stroke events like RTCA DO-160 Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs).
It exhibits <100 ps response time (unidirectional), 10 µA maximum standby current at VWM, and a temperature coefficient of breakdown voltage (αV(BR)) of 10 mV/°C - critical for stable clamping across –55 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 36,000 W - enables single-device protection against severe lightning-induced surges per IEC 61000-4-5 and RTCA DO-160G |
| Working Standoff Voltage (VWM) | 7 V - sets maximum continuous operating voltage without leakage; must exceed system DC rail (e.g., 5 V logic bus) |
| Breakdown Voltage (VBR) | 7.78–8.6 V at 150 mA - defines onset of avalanche conduction; ensures reliable turn-on before damage threshold of protected ICs |
| Clamping Voltage (VC) | 12.0 V at 3000 A - limits voltage seen by downstream components during worst-case surge; critical for 12 V automotive or avionics interfaces |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - allows efficient heat transfer to heatsink or large copper pour, supporting repeated surge events without thermal runaway |
| Response Time | <100 ps - ensures sub-nanosecond activation to suppress fast-rising ESD and RFI-induced transients |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and surge testing per JESD22-A114 |
Pinout & Package
The MPLAD36KP7AE3 uses the PLAD (Power Leadless Array Device) surface-mount package: void-free UL94V-0 epoxy body with exposed metal cathode base (bottom side), matte-tin plating on terminals, and polarity marked by cathode on package underside. Weight: ~1.85 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top surface pad) | Transient current entry point during reverse-biased surge | Connected to protected line (e.g., CAN_H, RS-485 A); current flows anode→cathode during clamping |
| Cathode (exposed metal base) | Transient current return path and primary thermal interface | Must be soldered to large copper area or heatsink; serves as both electrical return and thermal conduction path to PCB |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW surge rating at 10/1000 μs | Supports full compliance with RTCA DO-160 Section 22 multi-stroke lightning test without derating or parallel devices |
| Low RθJC = 1.0 °C/W | Enables >50% higher sustained surge repetition rate vs. standard SMC packages under identical PCB layout conditions |
| AEC-Q101 qualification | Validates robustness for automotive powertrain and body electronics subject to harsh thermal and vibration environments |
| RoHS-compliant (e3) | Meets global environmental regulations without compromising surge performance or thermal reliability |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and bake-out prior to reflow, reducing manufacturing cost and handling risk |
Applications
| Aerospace Avionics Bus Protection | Automotive Power Distribution |
|---|---|
Use Scenario: Protecting ARINC 429 data lines and MIL-STD-1553 buses from induced lightning transients in aircraft fuselage wiring. IC Role / Device Role / Timing Role: Primary transient clamp placed directly at connector entry point to limit voltage to ≤12 V during DO-160G Waveform 4 (6.4/69 μs) Level 5 stress. Use Value: Enables single-device compliance with RTCA DO-160 Section 22 without external series impedance or cascaded protection stages. |
Use Scenario: Safeguarding 12 V battery-fed ECUs (e.g., BCM, ABS controller) against ISO 7637-2 Load Dump pulses up to 120 V/400 ms. IC Role / Device Role / Timing Role: Unidirectional TVS connected between battery rail and ground, clamping surges within 100 ps to prevent latch-up in PMICs and microcontrollers. Use Value: Withstands 36 kW peak power and maintains VC ≤12.0 V at 3000 A, protecting 12 V-rated silicon without derating or parallel devices. |
| Industrial Ethernet Port Protection | Renewable Energy DC Link Protection |
Use Scenario: Shielding PoE+ (IEEE 802.3at) PHY interfaces from EFT and ESD events in factory automation gateways. IC Role / Device Role / Timing Role: Secondary protection stage after common-mode chokes, clamping differential-mode surges on data pairs to <12 V. Use Value: 10 µA max ID at 7 V VWM prevents signal integrity degradation on 100BASE-TX lines while providing IEC 61000-4-4 Level 4 immunity. |
Use Scenario: Guarding solar inverter DC input stages against grid-switching transients and lightning-induced surges on PV string outputs. IC Role / Device Role / Timing Role: Mounted across DC bus (+)–ground to clamp 10/1000 μs surges up to 36 kW, preventing IGBT gate driver failure. Use Value: RθJC = 1.0 °C/W allows direct mounting to aluminum heatsink, sustaining repeated 3000 A pulses without thermal shutdown in outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7A | Lower 600 W rating (vs. 36,000 W); SMB package; RθJC = 18 °C/W; no AEC-Q101 or DO-160 qualification | Suitable only for low-energy ESD/EFT (IEC 61000-4-2/4-4), not lightning or load dump | Select SMBJ7A only for cost-sensitive consumer electronics where surge energy is <100 mJ and thermal management is non-critical. |
| SMCJ7A | 3,000 W rating (1/12× power); SMC package; RθJC = 3.5 °C/W; AEC-Q101 qualified but not DO-160 tested | Acceptable for ISO 7637-2 Pulse 5a (load dump) in non-safety-critical automotive modules | Choose SMCJ7A when system-level testing confirms 3 kW clamping meets transient margin; avoid where DO-160 or multi-stroke validation is mandatory. |
Compared with SMBJ7A and SMCJ7A, the MPLAD36KP7AE3 delivers 12× and 12× higher peak power handling respectively, with 35× and 3.5× lower thermal resistance - making it the only option qualified for RTCA DO-160 Section 22 multi-stroke lightning and high-repetition industrial surge environments.
Availability
MPLAD36KP7AE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive power distribution, industrial Ethernet port protection, and renewable energy DC link protection requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP7AE3 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
Microchip Technology (via acquisition of Microsemi) 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 MPLAD36KP7AE3 belongs to Microchip's high-power PLAD-series TVS family, engineered specifically for mission-critical transient suppression in environments demanding RTCA DO-160, AEC-Q101, and IEC 61000-4-5 compliance.
FAQ
What is the clamping voltage of MPLAD36KP7AE3 at its rated peak pulse current?
The MPLAD36KP7AE3 has a maximum clamping voltage (VC) of 12.0 V at 3000 A peak impulse current (IPP) under 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 worst-case surge events. Maintaining VC ≤12.0 V ensures compatibility with 12 V automotive and avionics ICs.
Is MPLAD36KP7AE3 suitable for bidirectional signal line protection?
No, MPLAD36KP7AE3 is unidirectional - indicated by the "A" suffix (not "CA"). It conducts only when the cathode is positive relative to the anode, making it appropriate for DC rail protection (e.g., battery lines). For bidirectional AC or data-line protection, a CA-suffix variant such as MPLAD36KP7CAE3 would be required, though no 7 V bidirectional variant exists in this family.
Does MPLAD36KP7AE3 require a heatsink for standard operation?
The MPLAD36KP7AE3 does not require an external heatsink for single-event surge suppression, but its exposed metal cathode base must be soldered to ≥10 cm² of 1 oz copper for optimal thermal performance. The 1.0 °C/W junction-to-case resistance relies on this PCB copper area to dissipate cumulative heat during multi-stroke testing per RTCA DO-160.
What is the meaning of the "e3" suffix in MPLAD36KP7AE3?
"e3" denotes RoHS-compliant terminal finish - specifically annealed matte-tin plating per MIL-STD-750, method 2026. This replaces traditional tin-lead plating and ensures compliance with EU Directive 2011/65/EU and related global environmental regulations, without affecting surge performance or solderability.
Can MPLAD36KP7AE3 be used in place of a 5 V TVS for USB port protection?
No - MPLAD36KP7AE3 is not suitable for USB port protection. Its 7 V working standoff voltage exceeds the 5.25 V maximum USB VBUS, risking premature conduction and bus disruption. Additionally, its 12.0 V clamping voltage far exceeds USB 2.0/3.0 eye diagram margins. Use dedicated low-capacitance, low-VC TVS arrays (e.g., USBLC6-2SC6) instead.
MPLAD36KP7AE3 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):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- 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
MPLAD36KP7AE3 FAQ
1.How can I place an order for MPLAD36KP7AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP7AE3 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 MPLAD36KP7AE3 reliable?
The price and inventory of MPLAD36KP7AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP7AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP7AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP7AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP7AE3?
MPLAD36KP7AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP7AE3 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 MPLAD36KP7AE3?
For technical support, including MPLAD36KP7AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP7AE3 requirements.
6.How does Aetrix verify that MPLAD36KP7AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP7AE3 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 MPLAD36KP7AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP7AE3?
All MPLAD36KP7AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP7AE3, 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 MPLAD36KP7AE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP7AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP7AE3 Tags
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