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Microchip Technology MPLAD36KP220CA
- Part No.:
- MPLAD36KP220CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP220CA.pdf
- Description:
- TVS DIODE 220VWM 356VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:3,233
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Product details
Overview
MPLAD36KP220CA from Microsemi is a bidirectional surface-mount transient voltage suppressor (TVS) designed for high-energy surge protection in aerospace, automotive, and industrial power systems. It delivers 36 kW peak pulse power at 10/1000 μs, clamps transients to ≤356 V at 1000 A, and features a 220 V reverse standoff voltage (VWM), 245–271 V breakdown voltage (V(BR)), and 1.0 °C/W junction-to-case thermal resistance.
For engineers reviewing the MPLAD36KP220CA datasheet, MPLAD36KP220CA pinout, MPLAD36KP220CA application, or MPLAD36KP220CA equivalent, key selection criteria include its bidirectional polarity, DO-160F Waveform 4 Level 4 compliance (6.4/69 μs), IEC 61000-4-5 Class 5 secondary lightning protection with 42 Ω source impedance, and suitability for high-reliability PCB-mounted surge suppression where low thermal resistance and traceable lot screening are required.
Technical Context
This TVS diode operates as a voltage-clamped crowbar device triggered by avalanche breakdown, with symmetrical bidirectional conduction enabling protection against both positive and negative transients. Its metal-base package provides direct thermal path to heatsink, supporting sustained multi-stroke surge handling per RTCA DO-160 Section 22 and IEC 61000-4-5.
Designed for primary and secondary lightning protection layers, it meets AEC-Q101 stress testing and supports MIL-PRF-19500 upscreening options. The device's 100 ps response time and <5 ns clamping delay ensure fast suppression of ESD, EFT, and induced RFI without affecting signal integrity in DC power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 36,000 W @ 10/1000 μs - sustains aircraft-grade lightning surges without failure |
| Reverse Standoff Voltage (VWM) | 220 V - maximum continuous DC or peak AC voltage before clamping initiates |
| Breakdown Voltage (V(BR)) | 245–271 V @ 5 mA - precise avalanche threshold ensuring predictable turn-on margin |
| Max Clamping Voltage (VC) | 356 V @ 1000 A - limits downstream voltage stress during worst-case surge events |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to PCB copper or external heatsink |
| Standby Current (ID) | 10 μA @ VWM - negligible leakage in standby, preserving system efficiency |
| Temperature Coefficient (αV(BR)) | 20 mV/°C - stable breakdown voltage across -55°C to +150°C operating range |
Pinout & Package
Package: PLAD (Plastic Leaded Anode Down) - void-free UL94V-0 epoxy body with metal base acting as cathode terminal; dimensions 12.32 × 10.54 × 5.08 mm (L × W × H); weight ~1.85 g; RoHS-compliant matte-tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Metal Base (Bottom) | Cathode (Bidirectional Common Terminal) | Primary thermal and electrical return path; must be soldered to large copper pour or heatsink |
| Top Surface Pad | Anode (Bidirectional Common Terminal) | Electrically symmetric with base; forms bidirectional conduction path across device terminals |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction (CA suffix) | Enables single-device protection of AC lines or floating DC buses without polarity concerns |
| DO-160F Waveform 4 Level 4 compliance | Withstands 6.4/69 μs pin-injection transients up to 220 V standoff, critical for avionics I/O protection |
| IEC 61000-4-5 Class 5 (42 Ω source) | Validated for secondary lightning protection in long-distance wiring harnesses per aircraft standards |
| AEC-Q101 qualified | Guarantees robustness against automotive load dump and cold-crank transients |
| Moisture Sensitivity Level 1 | Eliminates dry-pack requirement and floor-life constraints-ready for standard SMT reflow |
Applications
| Aircraft Avionics Power Input | Automotive Engine Control Unit (ECU) |
|---|---|
Use Scenario: Protection of 28 V DC power inputs on flight control computers exposed to DO-160 Section 22 lightning-induced surges. IC Role / Device Role / Timing Role: Primary transient voltage suppressor placed at board edge before DC-DC converters. Use Value: Limits clamped voltage to ≤356 V under 1000 A surge, preventing damage to downstream 40 V-rated regulators and FPGAs. | Use Scenario: Load dump suppression on 12 V battery-fed ECU power rail during alternator regulation failure. IC Role / Device Role / Timing Role: High-energy crowbar device absorbing >36 kW pulses without degradation over vehicle lifetime. Use Value: Survives repeated 12 V/300 ms load dump events per ISO 7637-2 while maintaining <10 μA leakage at nominal voltage. |
| Industrial Motor Drive DC Bus | Railway Signaling Power Supply |
Use Scenario: Surge protection on 220 V DC intermediate bus in variable-frequency drives subject to switching transients and induced RFI. IC Role / Device Role / Timing Role: Bidirectional clamp limiting voltage excursions during IGBT commutation and line faults. Use Value: Symmetric clamping ensures equal protection for positive/negative transients, eliminating need for dual unidirectional devices. | Use Scenario: Secondary lightning protection for 220 V DC signaling power in trackside cabinets per EN 50121-4. IC Role / Device Role / Timing Role: Class 5-compliant TVS installed after primary SPD, handling residual surges with 42 Ω source impedance. Use Value: Meets EN 61000-4-5 long-distance Class 5 requirements up to 220 V VWM, reducing system-level test failures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SP3022-02UTG | Unidirectional, 220 V VWM, 30 kW PPP, SOD-123FL package, 1.5 °C/W RθJC | Limited to DC-only unidirectional rails; lower power rating and higher thermal resistance | Select when space-constrained PCB layout prioritizes small footprint over multi-stroke endurance |
| Vishay SMAJ220CA | Bidirectional, 220 V VWM, 400 W PPP, SMA package, 50 °C/W RθJA | Only suitable for low-energy ESD/EFT; not rated for lightning or load dump | Choose only for cost-sensitive consumer electronics with sub-1 kA surge requirements |
Compared with SP3022-02UTG and SMAJ220CA, the MPLAD36KP220CA provides 90× higher peak pulse power and 50× lower junction-to-case thermal resistance-enabling reliable operation in aerospace and heavy-duty automotive environments where multi-stroke survivability and thermal management are critical.
Availability
MPLAD36KP220CA is available at Aetrix Electronics and suitable for aircraft avionics, automotive ECU power systems, and industrial motor drive designs requiring stable component supply, full lot traceability, and AEC-Q101/MIL-PRF-19500 screening options.
Supply support for MPLAD36KP220CA 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 analog, mixed-signal, and radiation-hardened ICs for aerospace, defense, and industrial markets.
The MPLAD36KP220CA belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for mission-critical surge protection in environments demanding DO-160, ISO 7637, and IEC 61000-4-5 compliance with full lot traceability.
FAQ
What is the clamping voltage of MPLAD36KP220CA at 1000 A?
The MPLAD36KP220CA has a maximum clamping voltage (VC) of 356 V at 1000 A peak pulse current under 10/1000 μs waveform conditions. This value is measured per Figure 3 in the RF01216 datasheet and defines the upper voltage limit imposed on protected circuitry during worst-case surge events. The MPLAD36KP220CA maintains this clamping performance across its full operating temperature range of –55°C to +150°C.
Is MPLAD36KP220CA suitable for automotive load dump protection?
Yes, the MPLAD36KP220CA is AEC-Q101 qualified and explicitly rated for automotive load dump protection. Its 36 kW peak pulse power, 220 V standoff voltage, and ability to withstand repeated 12 V/300 ms transients make it suitable for engine control units and battery management systems. The MPLAD36KP220CA's metal-base thermal path ensures stable performance under sustained thermal stress typical in under-hood environments.
Does MPLAD36KP220CA require a heatsink?
The MPLAD36KP220CA does not require an external heatsink for single-event surge suppression, but its 1.0 °C/W junction-to-case thermal resistance mandates direct soldering of the metal base to a minimum 10 cm² copper pour for multi-stroke or high-duty-cycle applications. The MPLAD36KP220CA's thermal design relies on PCB copper as the primary heatsink; adding an external heatsink further improves derating margins per Figure 5 in RF01216.
What is the polarity configuration of MPLAD36KP220CA?
The MPLAD36KP220CA is a bidirectional TVS diode, indicated by the "CA" suffix in its part number. It conducts symmetrically in both directions, making it ideal for AC line protection or floating DC buses where polarity reversal may occur. Unlike unidirectional variants, the MPLAD36KP220CA has no anode/cathode distinction-both terminals behave identically under positive or negative overvoltage conditions.
Can MPLAD36KP220CA be used for DO-160F Section 22 lightning protection?
Yes, the MPLAD36KP220CA is specifically validated for RTCA DO-160F Section 22 multi-stroke lightning protection. It meets Waveform 4 Level 4 (6.4/69 μs) and Waveform 5A Level 4 (40/120 μs) requirements up to 220 V VWM. The MPLAD36KP220CA's low thermal resistance and high energy absorption enable compliance with aircraft lightning standards without performance degradation across multiple strike events.
MPLAD36KP220CA 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):
- 220V
- Voltage - Breakdown (Min):
- 245V
- Voltage - Clamping (Max) @ Ipp:
- 356V
- Current - Peak Pulse (10/1000µs):
- 102A
- 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
MPLAD36KP220CA FAQ
1.How can I place an order for MPLAD36KP220CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP220CA 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 MPLAD36KP220CA reliable?
The price and inventory of MPLAD36KP220CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP220CA is usually 5 days.
3.What payment methods are accepted for MPLAD36KP220CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP220CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP220CA?
MPLAD36KP220CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP220CA 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 MPLAD36KP220CA?
For technical support, including MPLAD36KP220CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP220CA requirements.
6.How does Aetrix verify that MPLAD36KP220CA is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP220CA 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 MPLAD36KP220CA meets industry standards.
7.What is the process for return or replacement of MPLAD36KP220CA?
All MPLAD36KP220CA units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP220CA, 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 MPLAD36KP220CA part is unused and in its original packaging.
Return procedure for MPLAD36KP220CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP220CA Tags
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