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Microchip Technology MPLAD36KP20CA/TR
- Part No.:
- MPLAD36KP20CA/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP20CA/TR.pdf
- Description:
- SURFACE MOUNT 36,000 WATT, TVS,
- Quantity:
- Payment:
- Shipping:
Inventory:3,828
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Product details
Overview
MPLAD36KP20CA/TR from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power rails. It delivers 36 kW peak pulse power at 10/1000 μs, clamps transients to ≤34.0 V at 1059 A, and features a 20 V working standoff voltage with <5 ns response time - deployed in lightning protection circuits per RTCA DO-160 Section 22 and IEC 61000-4-5.
For engineers reviewing the MPLAD36KP20CA/TR datasheet, MPLAD36KP20CA/TR pinout, MPLAD36KP20CA/TR application, or MPLAD36KP20CA/TR equivalent, key selection criteria include bidirectional polarity, 34.0 V clamping voltage at rated IPP, thermal resistance of 1.0 °C/W (junction-to-case), RoHS-compliant matte-tin plating, and compatibility with FR4 PCBs using the specified PLAD pad layout.
Technical Context
This TVS diode operates in avalanche breakdown mode to shunt multi-stroke lightning surges and load-dump transients away from sensitive downstream circuitry. Its low RθJC (1.0 °C/W) enables effective heat transfer to an external heatsink, while its <5 ns turn-on time ensures protection against fast-rising waveforms including RTCA DO-160G Waveform 4 (6.4/69 μs) and Waveform 5A (40/120 μs).
The device is qualified to AEC-Q101 and supports secondary lightning protection across IEC 61000-4-5 classes 1–5 depending on source impedance (2 Ω, 12 Ω, or 42 Ω). Bidirectional construction eliminates polarity sensitivity in AC-coupled or floating bus applications, and moisture sensitivity level (MSL) 1 allows assembly without dry-pack preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 36,000 W at 10/1000 μs - sustains aircraft-grade lightning strikes without failure |
| Working Standoff Voltage (VWM) | 20 V - maximum continuous DC or peak AC voltage before conduction begins |
| Clamping Voltage (VC) | 34.0 V at 1059 A - limits downstream voltage stress during full-rated surge |
| Breakdown Voltage (VBR) | 22.2–24.5 V at 5 mA - defines precise avalanche onset threshold |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables direct mounting to heatsink for sustained power dissipation |
| Response Time | <5 ns (bidirectional) - protects against sub-microsecond transients like EFT and ESD |
| Temperature Coefficient | 18 mV/°C - quantifies VBR drift over operating temperature range |
Pinout & Package
The MPLAD36KP20CA/TR uses the PLAD surface-mount package: void-free UL94V-0 epoxy body with metal base acting as cathode terminal; total weight ≈1.7–2.0 g; RoHS-compliant matte-tin plating on terminals; marked with full part number on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode (Bidirectional) | Common reference terminal for both polarities; must be soldered to large copper pour or heatsink |
| Top Surface Pad | Anode (Bidirectional) | Second terminal; forms symmetrical conduction path with base - no polarity orientation required |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction | Enables use on AC lines or floating buses without polarity concerns - simplifies layout and eliminates reverse-connection risk |
| AEC-Q101 qualification | Validates reliability for automotive powertrain and chassis systems under temperature cycling, humidity, and mechanical shock |
| MSL Level 1 rating | Allows standard SMT reflow without baking - reduces manufacturing cost and process complexity |
| 3σ lot norm screening on ID | Ensures consistent leakage current performance across production lots - critical for low-power standby circuits |
| RTCA DO-160G Waveform 4 & 5A compliance | Meets aircraft pin-injection immunity requirements up to Level 5 (Waveform 4) and Level 4 (Waveform 5A) |
Applications
| Aircraft Avionics Power Bus Protection | Automotive 12 V Load-Dump Suppression |
|---|---|
Use Scenario: Protecting flight control computers and sensor interfaces from induced lightning currents on 28 V DC distribution buses. IC Role / Device Role / Timing Role: Primary surge shunt device placed at bus entry point; clamps transients within 5 ns to prevent latch-up or gate oxide damage. Use Value: Enables compliance with RTCA DO-160 Section 22 multi-stroke lightning testing up to Level 5 using 42 Ω source impedance. | Use Scenario: Safeguarding infotainment ECUs and ADAS modules during alternator load dump events (ISO 7637-2 Pulse 5a). IC Role / Device Role / Timing Role: High-energy crowbar device mounted directly at power input; diverts >1000 A surges away from DC-DC converters and microcontrollers. Use Value: Limits clamped voltage to 34.0 V - below absolute maximum ratings of most 3.3 V/5 V logic and analog ICs downstream. |
| Industrial 48 V DC Power Distribution | Telecom DC Feeder Line Protection |
Use Scenario: Securing programmable logic controllers and I/O modules connected to 48 V PoE++ or battery-backed fieldbus systems. IC Role / Device Role / Timing Role: Secondary protector after upstream fusing; absorbs repetitive switching transients from contactors and motor drives. Use Value: Withstands cumulative heating via low RθJC (1.0 °C/W) and handles ≥1000 surge cycles per IEC 61000-4-5 Class 4 (42 Ω source). | Use Scenario: Shielding remote radio units and baseband processors from induced surges on outdoor telecom DC feeder cables. IC Role / Device Role / Timing Role: Bidirectional clamp on ±48 V supply rails; symmetric conduction prevents polarity-dependent failure modes. Use Value: Clamps both positive and negative surges to ≤34.0 V - maintains safe operating margin for telecom ASICs rated to 36 V absolute max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ20CA | Lower peak power (600 W), smaller SMB package, higher RθJA (65 °C/W) | Suitable only for consumer-grade single-stroke surges; not rated for RTCA DO-160 or IEC 61000-4-5 Class 4/5 | Select when cost and board space constrain design, and surge energy is limited to <100 J |
| SMCJ20CA | Higher peak power (1500 W) than SMBJ but still 24× lower than MPLAD36KP20CA/TR; SMC package with RθJC = 2.5 °C/W | Acceptable for automotive ISO 7637-2 Pulse 5a if derated; insufficient for multi-stroke lightning or long-duration load dumps | Choose for mid-tier industrial applications where 36 kW capability is unnecessary but AEC-Q101 is required |
Compared with SMBJ20CA and SMCJ20CA, the MPLAD36KP20CA/TR provides 24× and 24× greater peak pulse power respectively, enabling reliable operation under multi-stroke lightning conditions and sustained thermal loading - critical for aerospace and heavy-duty automotive systems where failure is not an option.
Availability
MPLAD36KP20CA/TR is available at Aetrix Electronics and suitable for aircraft avionics, automotive powertrain electronics, and industrial 48 V DC distribution systems requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP20CA/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) designs high-reliability semiconductor solutions for aerospace, defense, communications, and industrial markets - emphasizing radiation tolerance, long-term stability, and mission-critical performance.
The MPLAD36KP20CA/TR belongs to Microsemi's high-power PLAD-series TVS family, engineered specifically for multi-stroke lightning protection and automotive load-dump suppression in safety-critical platforms where thermal robustness and repeatable clamping behavior are non-negotiable.
FAQ
What is the clamping voltage of the MPLAD36KP20CA/TR at its rated peak pulse current?
The MPLAD36KP20CA/TR has a maximum clamping voltage (VC) of 34.0 V when subjected to its rated peak pulse current (IPP) of 1059 A at the 10/1000 μs waveform. This value is measured under standardized test conditions per JEDEC standards and represents the upper limit of voltage seen by downstream circuitry during a full-rated surge event. The MPLAD36KP20CA/TR maintains this clamping performance across its operational temperature range and after repeated surge exposures.
Is the MPLAD36KP20CA/TR suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the MPLAD36KP20CA/TR is explicitly AEC-Q101 qualified, confirming its suitability for automotive powertrain and chassis applications subject to rigorous stress testing including temperature cycling, humidity bias, and mechanical shock. Its 20 V working standoff voltage aligns with 12 V system architectures, and its 34.0 V clamping voltage provides headroom below typical 36 V absolute maximum ratings of automotive-grade ICs. The MPLAD36KP20CA/TR meets ISO 7637-2 Pulse 5a requirements when properly heatsinked.
How does the PLAD package of the MPLAD36KP20CA/TR improve thermal performance compared to standard SMC or SMB packages?
Unlike SMB or SMC packages, the PLAD package of the MPLAD36KP20CA/TR features a metal base that serves as the cathode terminal and provides direct thermal conduction path to the PCB copper pour or external heatsink. With a junction-to-case thermal resistance (RθJC) of just 1.0 °C/W - versus 2.5 °C/W for SMCJ or 65 °C/W for SMBJ - the MPLAD36KP20CA/TR dissipates heat far more efficiently. This enables sustained operation under repetitive surges and eliminates thermal runaway risks common in smaller packages.
Does the "CA" suffix in MPLAD36KP20CA/TR indicate bidirectional functionality, and how does it affect circuit placement?
Yes, the "CA" suffix in MPLAD36KP20CA/TR confirms bidirectional construction, meaning the device conducts symmetrically for both positive and negative transients - eliminating polarity sensitivity during placement. Unlike unidirectional TVS diodes, the MPLAD36KP20CA/TR requires no orientation check on the PCB; its metal base and top pad form interchangeable terminals. This simplifies layout, reduces assembly errors, and supports use in AC-coupled or floating-bus applications such as telecom DC feeds and differential signal lines.
What is the moisture sensitivity level (MSL) of the MPLAD36KP20CA/TR, and does it require dry-pack handling?
The MPLAD36KP20CA/TR is rated MSL Level 1 per IPC/JEDEC J-STD-020D.1, meaning it has unlimited floor life and does not require dry-pack packaging or baking prior to reflow soldering. This is enabled by its void-free thermosetting epoxy body and robust terminal plating. As a result, the MPLAD36KP20CA/TR supports standard SMT assembly processes without special moisture mitigation steps - reducing manufacturing overhead and improving yield consistency.
MPLAD36KP20CA/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
MPLAD36KP20CA/TR FAQ
1.How can I place an order for MPLAD36KP20CA/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP20CA/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 MPLAD36KP20CA/TR reliable?
The price and inventory of MPLAD36KP20CA/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP20CA/TR is usually 5 days.
3.What payment methods are accepted for MPLAD36KP20CA/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP20CA/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP20CA/TR?
MPLAD36KP20CA/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP20CA/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 MPLAD36KP20CA/TR?
For technical support, including MPLAD36KP20CA/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP20CA/TR requirements.
6.How does Aetrix verify that MPLAD36KP20CA/TR is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP20CA/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 MPLAD36KP20CA/TR meets industry standards.
7.What is the process for return or replacement of MPLAD36KP20CA/TR?
All MPLAD36KP20CA/TR units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP20CA/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 MPLAD36KP20CA/TR part is unused and in its original packaging.
Return procedure for MPLAD36KP20CA/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP20CA/TR Tags
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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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