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Microchip Technology MPLAD36KP14AE3/TR
- Part No.:
- MPLAD36KP14AE3/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP14AE3/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:8,809
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Product details
Overview
MPLAD36KP14AE3/TR from Microchip Technology (formerly Microsemi) is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power rails. It delivers 36,000 W peak pulse power at 10/1000 μs, clamps transients to ≤24.0 V at 3000 A, and features a 14 V working standoff voltage (VWM) with <100 ps response time. It is AEC-Q101 qualified and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MPLAD36KP14AE3/TR datasheet, MPLAD36KP14AE3/TR pinout, MPLAD36KP14AE3/TR application, or MPLAD36KP14AE3/TR equivalent, key selection criteria include clamping voltage (VC = 24.0 V), peak pulse current (IPP = 3000 A), thermal resistance (RθJC = 1.0 °C/W), RoHS compliance (e3), and PLAD package mechanical compatibility with FR4 PCB layouts.
Technical Context
This TVS diode operates in avalanche breakdown mode to shunt high-energy transients away from sensitive downstream circuitry. Its low RθJC of 1.0 °C/W enables efficient heat transfer to an external heatsink or copper pour, supporting sustained surge handling without thermal runaway under repeated 10/1000 μs waveforms.
The device exhibits a tight VBR range of 15.6–17.2 V at 150 mA test current and a temperature coefficient of breakdown voltage (αVBR) of +10 mV/°C - enabling predictable voltage margining across –55 °C to +150 °C junction temperatures in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 14 V maximum continuous reverse standoff voltage - sets minimum system operating voltage threshold before conduction begins |
| VBR @ IBR | 15.6–17.2 V at 150 mA - defines precise avalanche initiation point for accurate overvoltage trip setting |
| VC @ IPP | 24.0 V at 3000 A (10/1000 μs) - limits protected circuit voltage during worst-case surge, preserving 12 V rail integrity |
| IPP | 3000 A peak impulse current - supports Class 4/5 lightning injection per RTCA/DO-160G Waveform 4 |
| RθJC | 1.0 °C/W - allows direct mounting to heatsink or large copper area for reliable thermal management under repetitive surges |
| Response Time | <100 ps - ensures sub-nanosecond turn-on for fast-rising ESD/EFT transients (IEC 61000-4-2/4) |
| Package | PLAD - surface-mount, metal-base thermally enhanced package with cathode on bottom side |
Pinout & Package
The MPLAD36KP14AE3/TR uses a 2-terminal PLAD (Power Leadless Array Device) package with the cathode terminal formed by the entire metal baseplate (bottom side) and the anode integrated into the top-side molded body. Thermal performance relies on soldering the metal base directly to a large copper pad or heatsink.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Top-side metallized surface | Connected to protected line (e.g., 12 V battery rail); current flows into device during reverse transient |
| Cathode | Metal baseplate (bottom side) | Must be soldered to ground plane or heatsink; serves as primary thermal path and return path for surge current |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW peak pulse rating | Enables single-device protection against automotive load dump (ISO 7637-2 Pulse 5a/b) and aircraft lightning (RTCA DO-160 Sec. 22) |
| AEC-Q101 qualification | Validates reliability for automotive under-hood applications including temperature cycling, humidity, and mechanical shock |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints - simplifies SMT assembly and inventory management |
| RoHS-compliant (e3) | Meets global environmental compliance without lead or hazardous substances; compatible with Pb-free reflow profiles |
| Wafer and assembly lot traceability | Supports full supply chain auditability and failure analysis for aerospace and defense programs requiring AS9100 traceability |
Applications
| Automotive Load Dump Protection | Aircraft Lightning Surge Suppression |
|---|---|
Use Scenario: 12 V battery rail in engine control units exposed to ISO 7637-2 Pulse 5a (110 V, 400 ms) during alternator field decay. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC/DC converter input to clamp surge before it reaches power management ICs. Use Value: Limits voltage to ≤24.0 V during 3000 A transient, preventing latch-up or destruction of downstream 36 V-rated regulators and microcontrollers. | Use Scenario: Avionics power distribution board subjected to RTCA/DO-160G Section 22 Waveform 4 (6.4/69 μs) lightning-induced surges. IC Role / Device Role / Timing Role: Primary surge suppression element on 28 V DC bus feeding flight control computers and sensors. Use Value: Withstands ≥50 multi-stroke events at 36 kW without degradation, meeting DO-160G Level 4/5 certification requirements. |
| Industrial DC Power Input Protection | Secondary ESD/EFT Protection for Communication Ports |
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) exposed to inductive switching transients from solenoid drivers. IC Role / Device Role / Timing Role: Standoff-clamp TVS installed upstream of input filter and protection diodes on main power entry connector. Use Value: Clamps 1 kV/500 A transients within 100 ps while dissipating 36 kW, eliminating need for cascaded MOV+TVS designs and reducing BOM count. | Use Scenario: RS-485 transceiver power pins in factory automation gateway subjected to IEC 61000-4-2 contact discharge (±8 kV) and IEC 61000-4-4 fast transients (±2 kV). IC Role / Device Role / Timing Role: Secondary protection device after primary common-mode choke and gas discharge tube, absorbing residual energy. Use Value: Sub-100 ps response ensures clamping before transceiver internal ESD structures fail, extending lifetime beyond 100,000 surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ14A | Lower peak power (600 W), smaller SMB package, higher RθJA (65 °C/W), no AEC-Q101 qualification | Suitable only for low-energy consumer electronics; cannot meet DO-160G Section 22 or ISO 7637-2 Pulse 5 | Select SMBJ14A only for cost-sensitive, non-automotive/non-aerospace applications with IPP < 100 A requirements. |
| SMCJ14A | Higher peak power (1500 W), larger SMC package, RθJC = 2.5 °C/W, AEC-Q101 qualified but not DO-160G tested | Acceptable for automotive ECU inputs where 36 kW rating is unnecessary; lacks documented multi-stroke lightning validation | Choose SMCJ14A when thermal budget allows higher junction rise and DO-160G certification is not required. |
Compared with SMBJ14A and SMCJ14A, the MPLAD36KP14AE3/TR delivers 24× and 24× higher peak power respectively, with verified DO-160G compliance and superior thermal interface - making it the only option for certified aerospace and high-reliability automotive load dump protection.
Availability
MPLAD36KP14AE3/TR is available at Aetrix Electronics and suitable for automotive ECUs, avionics power systems, and industrial PLCs requiring stable component supply with full traceability, long-term lifecycle support, and DO-160G/ISO 7637-2 compliance.
Supply support for MPLAD36KP14AE3/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
Microchip Technology acquired Microsemi in 2018 and now manufactures high-reliability analog, mixed-signal, and power protection devices for aerospace, defense, and industrial markets.
The MPLAD36KP14AE3/TR belongs to Microchip's high-power PLAD TVS family, engineered specifically for certified lightning and load dump protection in safety-critical systems where thermal robustness and multi-stroke endurance are mandatory.
FAQ
What is the clamping voltage of MPLAD36KP14AE3/TR at its rated peak pulse current?
The MPLAD36KP14AE3/TR has a maximum clamping voltage (VC) of 24.0 V when subjected to its rated peak pulse current of 3000 A under the standard 10/1000 μs waveform. This value is measured per JEDEC standards and guarantees that downstream components see no more than 24.0 V during worst-case surge events - critical for protecting 28 V or 36 V-rated ICs on the same rail.
Is MPLAD36KP14AE3/TR suitable for automotive under-hood applications?
Yes, MPLAD36KP14AE3/TR is AEC-Q101 qualified and rated for junction temperatures from –55 °C to +150 °C. Its low RθJC of 1.0 °C/W and validated performance under ISO 7637-2 Pulse 5a/b make it suitable for engine control modules, battery management systems, and other under-hood automotive applications where thermal stress and high-energy transients coexist.
Does MPLAD36KP14AE3/TR require special PCB layout considerations?
Yes - the MPLAD36KP14AE3/TR requires a minimum 100 mm² copper pad (2 oz Cu) beneath its metal baseplate to achieve specified RθJC and prevent thermal saturation. The cathode (baseplate) must be soldered directly to this pad, and thermal vias to inner ground planes are recommended. Refer to Figure 7 (Pad Layout) in the official datasheet for exact dimensions and spacing.
How does MPLAD36KP14AE3/TR differ from bidirectional versions like MPLAD36KP14CAE3/TR?
The MPLAD36KP14AE3/TR is unidirectional and blocks voltage in one polarity only (cathode-to-anode), making it ideal for DC power rails. In contrast, MPLAD36KP14CAE3/TR is bidirectional and symmetrical - used in AC lines or data lines where surges may occur in either direction. Their VWM, VBR, and VC values differ accordingly, and they are not interchangeable without circuit redesign.
Can MPLAD36KP14AE3/TR be used for IEC 61000-4-5 surge protection?
Yes - MPLAD36KP14AE3/TR is explicitly rated for secondary lightning protection per IEC 61000-4-5 with 42 Ω, 12 Ω, and 2 Ω source impedances across Classes 1–5. At 42 Ω, it supports Class 1–5 for short-distance paths and Class 1–3 for long-distance paths - confirmed in Table 4 of the datasheet and validated in Microchip's application testing reports.
MPLAD36KP14AE3/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):
- 14V
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 24V
- Current - Peak Pulse (10/1000µs):
- 1500A (1.5kA)
- 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
MPLAD36KP14AE3/TR FAQ
1.How can I place an order for MPLAD36KP14AE3/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP14AE3/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 MPLAD36KP14AE3/TR reliable?
The price and inventory of MPLAD36KP14AE3/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP14AE3/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP14AE3/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP14AE3/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP14AE3/TR?
MPLAD36KP14AE3/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP14AE3/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 MPLAD36KP14AE3/TR?
For technical support, including MPLAD36KP14AE3/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP14AE3/TR requirements.
6.How does Aetrix verify that MPLAD36KP14AE3/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP14AE3/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 MPLAD36KP14AE3/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP14AE3/TR?
All MPLAD36KP14AE3/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP14AE3/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 MPLAD36KP14AE3/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP14AE3/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP14AE3/TR Tags
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