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Microchip Technology MXLPLAD36KP33CAE3
- Part No.:
- MXLPLAD36KP33CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MXLPLAD36KP33CAE3.pdf
- Description:
- TVS DIODE 33VWM 53.3VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:6,456
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Product details
Overview
MXLPLAD36KP33CAE3 from Microsemi is a bidirectional 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, features a 33 V reverse standoff voltage (VWM), clamps to ≤53.3 V at 676 A peak current, and operates across –55°C to +150°C junction temperature.
For engineers reviewing the MXLPLAD36KP33CAE3 datasheet, MXLPLAD36KP33CAE3 pinout, MXLPLAD36KP33CAE3 application, or MXLPLAD36KP33CAE3 equivalent, key selection criteria include its DO-160F Waveform 4 Level 4 compliance, IEC 61000-4-5 Class 4 capability with 42 Ω source impedance, bidirectional polarity, and RoHS-compliant e3 termination.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp transients rapidly-response time <5 ns-with low thermal resistance (RθJC = 1.0 °C/W) enabling high-reliability multi-stroke lightning protection. Its void-free UL94V-0 epoxy package and metal-base cathode construction optimize heat dissipation during repeated 36 kW surges.
It meets AEC-Q101 stress testing requirements and supports MIL-PRF-19500 upscreening (MXL grade). Standby current is screened to 3σ lot norm at VWM, and moisture sensitivity is IPC/JEDEC Level 1-no dry pack required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33 V - Maximum continuous operating voltage before clamping initiates |
| V(BR) min/max | 36.7–40.6 V - Breakdown occurs within this range at 5 mA, ensuring predictable turn-on margin |
| VC @ IPP | ≤53.3 V at 676 A - Clamping voltage under 10/1000 μs surge, limiting downstream voltage stress |
| PPP | 36,000 W - Peak pulse power handling at 10/1000 μs, validated per RTCA DO-160 Section 22 |
| RθJC | 1.0 °C/W - Low junction-to-case thermal resistance enables efficient heatsinking on PCB or metal baseplate |
| TJ Range | –55°C to +150°C - Full operational range supports avionics and under-hood automotive environments |
| Moisture Sensitivity | Level 1 per J-STD-020B - No baking or dry pack needed prior to reflow soldering |
Pinout & Package
MXLPLAD36KP33CAE3 is housed in a surface-mount PLAD package with a metal base acting as the cathode terminal (bidirectional configuration has symmetrical terminals). The package measures 12.32 × 10.54 × 5.08 mm (L × W × H) with a recommended pad layout optimized for thermal conduction and mechanical reliability on FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode (Bidirectional Common Terminal) | Serves as primary thermal path and electrical return; must be soldered to large copper pour or heatsink |
| Top Surface Pad | Anode (Bidirectional Common Terminal) | Provides symmetrical surge conduction path; electrically identical to base in bidirectional operation |
Key Features
| Feature | Design Value |
|---|---|
| DO-160F Waveform 4 Level 4 Compliance | Withstands 6.4/69 μs pin-injection transients up to 300 V standoff (MXLPLAD36KP33CAE3 qualifies through 300CA family limit) |
| IEC 61000-4-5 Class 4 Support (42 Ω) | Validated for secondary lightning protection up to 300 V VWM, matching MXLPLAD36KP33CAE3's 33 V rating in system-level cascade design |
| AEC-Q101 Qualified | Passed stress tests including HTOL, TC, UHAST, and ESD per automotive-grade reliability requirements |
| RoHS Compliant (e3) | Matte-tin plating meets JEDEC J-STD-020B and EU RoHS Directive 2011/65/EU without lead or exemptions |
| MXL Reliability Screening | Includes 3σ lot-norm screening on ID, wafer/assembly traceability, and optional MIL-PRF-19500 conformance inspection |
Applications
| Avionics Lightning Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: Protecting ARINC 429 data lines and sensor inputs in commercial aircraft against multi-stroke lightning per RTCA DO-160 Section 22. IC Role / Device Role / Timing Role: Bidirectional TVS clamping transient energy before it reaches interface ICs or ADC front-ends. Use Value: Enables compliance with Level 4 pin injection (Waveform 4) and Class 4 IEC 61000-4-5 using a single surface-mount device with no external biasing. | Use Scenario: Safeguarding engine control unit (ECU) power inputs during alternator load dump events in 12 V and 24 V systems. IC Role / Device Role / Timing Role: Fast-response shunt element that diverts >100 A surges away from DC-DC converters and microcontrollers. Use Value: Limits clamped voltage to ≤53.3 V, staying below 58 V automotive ISO 7637-2 Pulse 5a threshold while surviving repeated 36 kW pulses. |
| Industrial Motor Drive I/O Protection | Railway Signaling Interface Protection |
Use Scenario: Shielding encoder feedback lines and analog sensor inputs in variable-frequency drives exposed to switching-induced RFI and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional transient clamp placed at connector entry point to absorb coupled noise and EFT bursts. Use Value: Meets IEC 61000-4-4 Level 4 (4 kV) and provides ESD immunity per IEC 61000-4-2 ±15 kV contact discharge without signal distortion. | Use Scenario: Securing track-side signaling interfaces (e.g., ETCS Level 1 balise connections) against induced surges from nearby traction currents and lightning coupling. IC Role / Device Role / Timing Role: Primary surge arrestor in secondary protection stage cascaded after gas discharge tube (GDT) front-end. Use Value: Delivers Class 4 IEC 61000-4-5 protection with 42 Ω source impedance at 33 V working voltage-ideal for 24 V nominal signaling rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA | 600 W PPP rating (vs. 36,000 W); SMC package; lower clamping ratio (VC/VWM ≈ 1.6 vs. 1.62) | Not suitable for DO-160F Section 22 or IEC 61000-4-5 Class 4; limited to consumer/industrial single-stroke events | Select SMBJ33CA only for cost-sensitive, low-energy applications where 36 kW capability is unnecessary. |
| SMCJ33CA | 1500 W PPP rating; same SMC package footprint; higher RθJA (50 °C/W vs. 1.0 °C/W) | Lacks AEC-Q101 qualification and MXL screening; not rated for multi-stroke lightning or RTCA DO-160F Waveform 4 | Choose SMCJ33CA for non-aerospace, non-automotive designs requiring moderate surge robustness without high-reliability screening. |
Compared with SMBJ33CA and SMCJ33CA, MXLPLAD36KP33CAE3 delivers over 24× higher peak pulse power, 50× lower junction-to-case thermal resistance, and certified compliance with aviation and automotive surge standards-making it irreplaceable in safety-critical, multi-stroke environments.
Availability
MXLPLAD36KP33CAE3 is available at Aetrix Electronics and suitable for avionics lightning protection, automotive load dump suppression, and industrial motor drive I/O protection requiring stable component supply, long-term lifecycle support, and traceable high-reliability sourcing.
Supply support for MXLPLAD36KP33CAE3 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) is a U.S.-based semiconductor company specializing in high-reliability, radiation-tolerant, and precision timing solutions for aerospace, defense, and industrial markets.
The PLAD family-including MXLPLAD36KP33CAE3-is engineered for ultra-high-energy transient suppression in mission-critical platforms where multi-stroke lightning, load dump, and EFT survivability are mandatory design requirements.
FAQ
What is the clamping voltage of MXLPLAD36KP33CAE3 at its rated peak pulse current?
The MXLPLAD36KP33CAE3 exhibits a maximum clamping voltage (VC) of 53.3 V when subjected to its rated peak pulse current (IPP) of 676 A under 10/1000 μs waveform conditions. This value is guaranteed per the manufacturer's electrical characteristics table and ensures downstream circuitry remains within safe voltage limits during high-energy transients.
Is MXLPLAD36KP33CAE3 compliant with RTCA DO-160F Section 22 for lightning-induced transients?
Yes, MXLPLAD36KP33CAE3 is specifically designed and tested to meet RTCA DO-160F Section 22 multi-stroke lightning requirements. Its 36 kW peak pulse power rating, sub-5 ns response time, and validated performance across Waveform 4 (6.4/69 μs) Level 4 and Waveform 5A Level 4 confirm compliance for aircraft-level secondary protection.
Does MXLPLAD36KP33CAE3 require a heatsink for reliable operation?
MXLPLAD36KP33CAE3 does not require an external heatsink for transient suppression duty cycles ≤0.05%, but its metal base must be soldered to a thermally robust PCB copper pour or chassis-mounted heatsink. With RθJC = 1.0 °C/W, effective thermal management is essential to maintain junction temperature below +150°C during repetitive surges.
What does the "MXL" prefix indicate in MXLPLAD36KP33CAE3?
The "MXL" prefix denotes Microsemi's highest reliability screening level-exceeding standard commercial and industrial grades. MXL includes 3σ lot-norm screening on standby current (ID), full wafer and assembly traceability, and optional MIL-PRF-19500 conformance inspection, making MXLPLAD36KP33CAE3 suitable for aerospace and defense applications.
How does the "CA" suffix affect the functionality of MXLPLAD36KP33CAE3?
The "CA" suffix in MXLPLAD36KP33CAE3 specifies bidirectional construction, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., "A" suffix), it has no polarity marking and functions identically regardless of voltage polarity-critical for AC-coupled or floating signal lines.
MXLPLAD36KP33CAE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- Nonstandard SMD
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 676A
- 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
MXLPLAD36KP33CAE3 FAQ
1.How can I place an order for MXLPLAD36KP33CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MXLPLAD36KP33CAE3 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 MXLPLAD36KP33CAE3 reliable?
The price and inventory of MXLPLAD36KP33CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MXLPLAD36KP33CAE3 is usually 5 days.
3.What payment methods are accepted for MXLPLAD36KP33CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MXLPLAD36KP33CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MXLPLAD36KP33CAE3?
MXLPLAD36KP33CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MXLPLAD36KP33CAE3 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 MXLPLAD36KP33CAE3?
For technical support, including MXLPLAD36KP33CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MXLPLAD36KP33CAE3 requirements.
6.How does Aetrix verify that MXLPLAD36KP33CAE3 is sourced from the original manufacturer or authorized distributors?
All MXLPLAD36KP33CAE3 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 MXLPLAD36KP33CAE3 meets industry standards.
7.What is the process for return or replacement of MXLPLAD36KP33CAE3?
All MXLPLAD36KP33CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MXLPLAD36KP33CAE3, 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 MXLPLAD36KP33CAE3 part is unused and in its original packaging.
Return procedure for MXLPLAD36KP33CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MXLPLAD36KP33CAE3 Tags
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onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Nexperia USA Inc.
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