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Microchip Technology MPLAD36KP150AE3
- Part No.:
- MPLAD36KP150AE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP150AE3.pdf
- Description:
- TVS DIODE 150VWM 243VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:9,137
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Product details
Overview
MPLAD36KP150AE3 from Microsemi is a unidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace and automotive systems. It delivers 36 kW peak pulse power at 10/1000 μs, clamps at ≤243 V under 149 A peak impulse current, and features a 150 V reverse standoff voltage (VWM), 167–185 V breakdown voltage (V(BR)), and 1.0 °C/W junction-to-case thermal resistance - enabling robust secondary lightning protection per IEC 61000-4-5 and RTCA DO-160F Waveform 4 Level 4.
For engineers reviewing the MPLAD36KP150AE3 datasheet, MPLAD36KP150AE3 pinout, MPLAD36KP150AE3 application, or MPLAD36KP150AE3 equivalent, key selection criteria include its 150 V VWM rating, unidirectional polarity, RoHS-compliant e3 plating, low-profile PLAD package with metal-base cathode, and verified compliance with AEC-Q101 and MIL-PRF-19500 upscreening options.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuitry, activating above its 150 V standoff threshold to divert transients up to 36,000 W. Its silicon avalanche structure ensures sub-100 ps response time and stable breakdown behavior across -55°C to +150°C operating range.
Thermal design is enabled by direct metal-base mounting: the cathode forms the thermal path to the PCB copper pad, achieving 1.0 °C/W RθJC when used with the recommended FR4 pad layout. Standby leakage remains ≤10 μA at VWM, supporting low-power system monitoring integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - maximum continuous DC or RMS operating voltage before clamping initiates |
| V(BR) min/max | 167–185 V @ 5 mA - guaranteed avalanche conduction onset window for predictable turn-on margin |
| VC @ IPP | 243 V @ 149 A - maximum clamped voltage during 10/1000 μs surge, defining protected circuit voltage ceiling |
| PPP | 36,000 W @ 10/1000 μs - peak transient energy handling capacity without failure |
| RθJC | 1.0 °C/W - enables direct thermal coupling to heatsink-capable PCB pads for sustained multi-stroke operation |
| ID @ VWM | ≤10 μA - negligible standby current for battery-backed or low-leakage monitoring circuits |
| Package | PLAD - low-profile surface-mount package with exposed metal cathode base for thermal and electrical grounding |
Pinout & Package
The MPLAD36KP150AE3 uses a 2-terminal PLAD package: the anode is accessible via the top metallized surface, while the cathode is the entire exposed metal base (bottom side), requiring soldering to a large copper thermal pad per recommended layout (Ref. A=0.470", B=0.230").
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top surface) | Transient current entry point | Connected to protected line; conducts surge current into cathode path during clamping |
| Cathode (metal base) | Common reference & thermal path | Soldered directly to PCB ground plane; serves as primary heat sink and return path for surge current |
Key Features
| Feature | Design Value |
|---|---|
| 36 kW peak pulse rating | Supports multi-stroke lightning events per RTCA DO-160 Section 22 without degradation |
| 1.0 °C/W junction-to-case thermal resistance | Enables >2.5 W steady-state dissipation at TC = 100°C with minimal board area |
| RoHS-compliant e3 matte-tin plating | Ensures reliable solderability per MIL-STD-750 Method 2026 and compatibility with lead-free reflow |
| AEC-Q101 qualified | Validated for automotive under-hood applications including load dump and ISO 7637-2 compliance |
| IEC 61000-4-5 Class 5 support (42 Ω source) | Meets highest industrial surge immunity level for long-distance wiring configurations |
Applications
| Aerospace Avionics Power Input | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protection of 28 V DC aircraft bus inputs against induced lightning transients per RTCA DO-160F Waveform 4 Level 4. IC Role / Device Role / Timing Role: Primary parallel clamping device placed at board edge before DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤243 V, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic powered from regulated rails. | Use Scenario: Guarding ECU 12 V supply against alternator load dump spikes up to 120 V for ≥400 ms. IC Role / Device Role / Timing Role: High-energy crowbar element absorbing >36 kW surges without fuse activation or system reset. Use Value: Eliminates need for series fusing or derated input capacitors, maintaining full 150 V standoff margin during normal operation. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
Use Scenario: Safeguarding 150 V-rated IGBT gate drivers on variable-frequency drive DC links exposed to switching-induced transients. IC Role / Device Role / Timing Role: Fast-response shunt protector placed adjacent to driver ICs to clamp ringing overshoot within 100 ps. Use Value: Prevents false triggering or destruction of gate drivers by limiting voltage excursion to 243 V during 10/1000 μs commutation surges. | Use Scenario: Securing 150 V signaling lines in trackside electronics against EFT bursts and indirect lightning coupling per IEC 61000-4-4/4-5. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), providing precise clamping and low leakage. Use Value: Maintains <10 μA standby current to avoid signal attenuation on high-impedance analog sensor inputs while clamping to 243 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | 600 W PPP rating, SMC package, 1.5x higher RθJA (15 °C/W), 200 V VC @ 32.4 A | Limited to single-stroke or low-duty-cycle surges; unsuitable for DO-160 multi-stroke validation | Select only for cost-sensitive consumer-grade designs where 36 kW capability is unnecessary |
| SMCJ150A | 1500 W PPP rating, same SMC package, 270 V VC @ 55.6 A, no AEC-Q101 or MIL screening options | Cannot meet IEC 61000-4-5 Class 5 or RTCA DO-160F Level 4 requirements | Acceptable for basic industrial I/O protection but not for aerospace or automotive safety-critical nodes |
Compared with SMBJ150A and SMCJ150A, the MPLAD36KP150AE3 provides 24× and 24× higher peak power handling respectively, validated thermal performance for sustained surge duty, and qualification evidence for mission-critical environments - making it the sole option among the three for certified lightning protection.
Availability
MPLAD36KP150AE3 is available at Aetrix Electronics and suitable for aerospace avionics, automotive engine control units, and industrial motor drives requiring stable component supply with traceable lot history and extended lifecycle support.
Supply support for MPLAD36KP150AE3 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 components for aerospace, defense, and industrial markets.
The MPLAD36KP150AE3 belongs to Microsemi's high-power PLAD TVS family, engineered specifically for multi-stroke lightning and load-dump protection in safety-critical platforms where standard TVS devices fail under repeated stress.
FAQ
What is the clamping voltage of MPLAD36KP150AE3 under maximum rated surge current?
The MPLAD36KP150AE3 exhibits a maximum clamping voltage (VC) of 243 V when subjected to its peak impulse current (IPP) of 149 A under the standardized 10/1000 μs waveform. This value is measured at 25°C and defines the upper voltage limit imposed on protected circuitry during worst-case transient events, ensuring downstream components remain within safe operating voltage windows.
Does MPLAD36KP150AE3 meet automotive qualification standards?
Yes, the MPLAD36KP150AE3 is qualified to AEC-Q101 for discrete semiconductors, validating its reliability for automotive under-hood applications such as engine control units and battery management systems. Its construction, wafer-level traceability, and surge testing align with automotive environmental and lifetime requirements, including load dump immunity per ISO 7637-2.
How is thermal management implemented for MPLAD36KP150AE3 in PCB layout?
Thermal management for MPLAD36KP150AE3 relies on soldering its exposed metal cathode base directly to a large copper thermal pad on the PCB, as specified in the recommended pad layout (A = 0.470", B = 0.230"). This achieves a junction-to-case thermal resistance of 1.0 °C/W, allowing efficient heat transfer from the die to the board - critical for sustaining multi-pulse operation without thermal runaway.
Is MPLAD36KP150AE3 suitable for RTCA DO-160 lightning protection compliance?
Yes, the MPLAD36KP150AE3 is explicitly rated for RTCA DO-160F Section 22 lightning-induced transient protection, supporting Waveform 4 (6.4/69 μs) Level 4 and Waveform 5A (40/120 μs) Level 4 up to 150 V VWM. Its 36 kW peak pulse power and low clamping voltage enable compliance in both short- and long-distance aircraft wiring configurations.
What does the 'E3' suffix indicate in MPLAD36KP150AE3?
The 'E3' suffix in MPLAD36KP150AE3 denotes RoHS-compliant matte-tin plating per JEDEC J-STD-020B Level 1 moisture sensitivity, eliminating the need for dry-packaging. This finish ensures robust solderability using lead-free reflow profiles while meeting environmental compliance requirements for aerospace, automotive, and industrial end equipment.
MPLAD36KP150AE3 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):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 149A
- 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
MPLAD36KP150AE3 FAQ
1.How can I place an order for MPLAD36KP150AE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP150AE3 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 MPLAD36KP150AE3 reliable?
The price and inventory of MPLAD36KP150AE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP150AE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP150AE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP150AE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP150AE3?
MPLAD36KP150AE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP150AE3 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 MPLAD36KP150AE3?
For technical support, including MPLAD36KP150AE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP150AE3 requirements.
6.How does Aetrix verify that MPLAD36KP150AE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP150AE3 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 MPLAD36KP150AE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP150AE3?
All MPLAD36KP150AE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP150AE3, 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 MPLAD36KP150AE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP150AE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP150AE3 Tags
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