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Microchip Technology MPLAD36KP20CAE3/TR
- Part No.:
- MPLAD36KP20CAE3/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP20CAE3/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:6,560
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Product details
Overview
MPLAD36KP20CAE3/TR from Microsemi (now Microchip) is a bidirectional surface-mount transient voltage suppressor (TVS) rated for 36,000 W peak pulse power at 10/1000 μs, with 20 V working standoff voltage (VWM), 22.2–24.5 V breakdown voltage (VBR), and 34.0 V clamping voltage (VC) at 1059 A peak impulse current. It delivers lightning and load dump protection in aerospace avionics per RTCA DO-160 Section 22.
For engineers reviewing the MPLAD36KP20CAE3/TR datasheet, MPLAD36KP20CAE3/TR pinout, MPLAD36KP20CAE3/TR application, or MPLAD36KP20CAE3/TR equivalent, this device is selected for high-energy secondary surge suppression where low thermal resistance (RθJC = 1.0 °C/W), fast response (<5 ns for bidirectional), and AEC-Q101 qualification are required in compact SMT layouts.
Technical Context
This bidirectional TVS operates in avalanche breakdown mode to clamp transients above VWM, delivering sub-5 ns response time and 36 kW surge capability under 10/1000 μs waveform. Its metal-base PLAD package enables direct thermal coupling to heatsinks, supporting continuous power dissipation up to 504 W at TC = 100 °C.
It meets IEC 61000-4-5 (42 Ω, 12 Ω, 2 Ω source impedances) for Class 1–5 secondary lightning protection and RTCA/DO-160G Waveform 4 (6.4/69 μs) Level 4–5 pin injection immunity - validated across the full 14–400 V VWM family including MPLAD36KP20CAE3/TR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 20 V maximum continuous reverse standoff voltage - sets minimum system operating voltage threshold before clamping initiates |
| VBR | 22.2–24.5 V at 5 mA - defines precise avalanche onset range for predictable turn-on behavior |
| VC | 34.0 V at IPP = 1059 A - limits downstream circuit voltage during worst-case 10/1000 μs surge |
| IPP | 1059 A peak pulse current - supports multi-stroke lightning compliance (RTCA DO-160 Section 22) |
| RθJC | 1.0 °C/W junction-to-case thermal resistance - enables high-power derating when mounted on heatsink |
| TJ | –55 to +150 °C operating junction temperature - qualified for extended industrial and aerospace environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and surge testing |
Pinout & Package
The MPLAD36KP20CAE3/TR uses the PLAD surface-mount package with a metal base acting as the cathode terminal for bidirectional operation. The device has two terminals: anode and cathode, both accessible via the bottom metal pad and top metallization.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal base (bottom) | Cathode (bidirectional) | Serves as common reference and primary thermal path - must be soldered to copper pour or heatsink |
| Top metallization | Anode (bidirectional) | Provides symmetrical conduction path - connects to protected line without polarity sensitivity |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction (CA suffix) | Enables symmetric clamping on AC lines or differential buses without polarity constraints |
| 36,000 W peak pulse rating (10/1000 μs) | Meets RTCA DO-160 Section 22 multi-stroke lightning requirements for aircraft systems |
| RθJC = 1.0 °C/W | Allows >500 W steady-state dissipation at 100 °C case temperature - reduces need for oversized heatsinks |
| AEC-Q101 qualification | Validates robustness for automotive powertrain and body electronics under thermal stress and surge conditions |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life limitations - simplifies SMT assembly logistics |
Applications
| Aerospace Avionics Power Input | Automotive 12 V Battery Line Protection |
|---|---|
Use Scenario: Protecting flight control unit power inputs against induced lightning transients per RTCA DO-160G Section 22 Waveform 1 and 4. IC Role / Device Role / Timing Role: Primary bidirectional surge clamp at board-level input filter stage. Use Value: Clamps 34.0 V at 1059 A while maintaining <5 ns response - prevents latch-up in downstream DC/DC controllers. |
Use Scenario: Safeguarding infotainment head unit power rail during cold-crank and load-dump events (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: High-energy TVS placed upstream of LDOs and PMICs. Use Value: Absorbs 36 kW surges without degradation - eliminates need for series fusing or redundant clamps. |
| Industrial Motor Drive DC Bus | Renewable Energy Inverter DC Link |
Use Scenario: Suppressing switching-induced transients on 24 V DC bus feeding servo drives in factory automation. IC Role / Device Role / Timing Role: Secondary protection parallel to bulk capacitance, triggered only during overvoltage faults. Use Value: Withstands repeated 1059 A pulses - extends system uptime versus polymer-based alternatives. |
Use Scenario: Clamping voltage spikes on photovoltaic string combiner box DC outputs exposed to nearby lightning strikes. IC Role / Device Role / Timing Role: Bidirectional front-end protector compliant with IEC 61000-4-5 Class 4 (42 Ω source). Use Value: 20 V VWM aligns with MPPT controller input range - avoids false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20CA | Lower 600 W peak power rating; SMB package with RθJC ≈ 15 °C/W | Limited to single-stroke IEC 61000-4-5 Class 2; unsuitable for DO-160 multi-stroke | Select when cost-sensitive consumer designs require basic ESD/EFT protection only |
| SMCJ20CA | 3000 W rating; SMC package; RθJC ≈ 3.5 °C/W; slower clamping (~10 ns) | Supports IEC 61000-4-5 Class 3 but fails DO-160 Section 22 multi-stroke validation | Choose for industrial controls needing higher energy than SMBJ but lower cost than PLAD |
Compared with SMBJ20CA and SMCJ20CA, MPLAD36KP20CAE3/TR delivers 12× and 12× higher peak power respectively, with 15× and 3.5× better thermal resistance - enabling sustained multi-event protection in mission-critical aerospace and automotive systems where thermal recovery and waveform fidelity are design-critical.
Availability
MPLAD36KP20CAE3/TR is available at Aetrix Electronics and suitable for aerospace avionics, automotive battery line protection, and industrial motor drive applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MPLAD36KP20CAE3/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 - specializes in high-reliability analog, mixed-signal, and power semiconductors for aerospace, defense, and industrial markets.
The MPLAD36KP20CAE3/TR belongs to Microsemi's high-power PLAD TVS family, engineered specifically for multi-stroke lightning protection in safety-critical systems where thermal performance and waveform accuracy are non-negotiable.
FAQ
What is the clamping voltage of MPLAD36KP20CAE3/TR at its rated peak pulse current?
The MPLAD36KP20CAE3/TR has a maximum clamping voltage (VC) of 34.0 V when subjected to its rated peak pulse current of 1059 A under the standard 10/1000 μs waveform. This value is measured per IEC 61000-4-5 test conditions and ensures downstream components remain within safe operating voltage limits during surge events. The low VC/VWM ratio of 1.7 reflects optimized silicon design for rapid avalanche response.
Is MPLAD36KP20CAE3/TR RoHS-compliant and lead-free?
Yes, MPLAD36KP20CAE3/TR is RoHS-compliant, as indicated by the "e3" suffix in its part number. It features annealed matte-tin plating on terminals per MIL-STD-750 Method 2026 and meets JEDEC J-STD-020D.1 moisture sensitivity Level 1 - eliminating dry-pack requirements and enabling standard reflow profiles without preconditioning.
Does MPLAD36KP20CAE3/TR meet AEC-Q101 qualification requirements?
Yes, MPLAD36KP20CAE3/TR is fully AEC-Q101 qualified. Testing includes high-temperature reverse bias (HTRB), temperature cycling, and surge endurance - validating suitability for automotive powertrain and body electronics. Its qualification covers the full operating temperature range (–55 °C to +150 °C) and confirms reliability under repeated transient stress.
How does the PLAD package of MPLAD36KP20CAE3/TR improve thermal performance compared to SMB or SMC packages?
The PLAD package of MPLAD36KP20CAE3/TR achieves RθJC = 1.0 °C/W - over 15× better than SMB (≈15 °C/W) and ~3.5× better than SMC (≈3.5 °C/W). This is enabled by its void-free epoxy body and direct metal-base thermal interface, allowing efficient heat transfer to PCB copper pours or external heatsinks - critical for sustaining multi-pulse surge events without thermal runaway.
Can MPLAD36KP20CAE3/TR be used for IEC 61000-4-5 compliance testing with different source impedances?
Yes, MPLAD36KP20CAE3/TR is validated for IEC 61000-4-5 secondary lightning protection across multiple source impedances: it supports Class 1–5 with 42 Ω, Class 1–4 with 12 Ω, and Class 2–4 with 2 Ω source impedance. Its 20 V VWM and 34.0 V VC ensure margin across all configurations without derating - confirmed in Microsemi's application notes and DO-160 test reports.
MPLAD36KP20CAE3/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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 20V
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 34V
- Current - Peak Pulse (10/1000µs):
- 1059A (1.059kA)
- 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
MPLAD36KP20CAE3/TR FAQ
1.How can I place an order for MPLAD36KP20CAE3/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP20CAE3/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 MPLAD36KP20CAE3/TR reliable?
The price and inventory of MPLAD36KP20CAE3/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP20CAE3/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP20CAE3/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP20CAE3/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP20CAE3/TR?
MPLAD36KP20CAE3/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP20CAE3/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 MPLAD36KP20CAE3/TR?
For technical support, including MPLAD36KP20CAE3/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP20CAE3/TR requirements.
6.How does Aetrix verify that MPLAD36KP20CAE3/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP20CAE3/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 MPLAD36KP20CAE3/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP20CAE3/TR?
All MPLAD36KP20CAE3/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP20CAE3/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 MPLAD36KP20CAE3/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP20CAE3/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP20CAE3/TR Tags
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