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Microchip Technology MPLAD36KP16CA
- Part No.:
- MPLAD36KP16CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP16CA.pdf
- Description:
- TVS DIODE 16VWM 27.2VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:8,971
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Product details
Overview
MPLAD36KP16CA 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, features a 16 V reverse standoff voltage (VWM), clamps to ≤27.2 V at 1324 A peak impulse current (IPP), and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MPLAD36KP16CA datasheet, MPLAD36KP16CA pinout, MPLAD36KP16CA application, or MPLAD36KP16CA equivalent, this device is selected for secondary lightning protection per IEC 61000-4-5 (42 Ω, 12 Ω, and 2 Ω source impedances), pin-injection immunity per RTCA/DO-160F Waveform 4 & 5A, and ESD/EFT compliance per IEC 61000-4-2/4-4 - critical for avionics power inputs and vehicle ECUs.
Technical Context
This TVS operates as a clamping-type overvoltage protector with symmetrical bidirectional breakdown behavior, enabling suppression of both positive and negative transients without polarity sensitivity. Its low thermal resistance (RθJC = 1.0 °C/W) and void-free UL94V-0 epoxy package support high-reliability mounting on FR4 PCBs with recommended pad layout for optimal heat dissipation.
It is characterized by tight V(BR) tolerance (17.8–19.7 V @ 5 mA), low standby current (≤450 μA @ 16 V), and temperature coefficient αV(BR) = 12 mV/°C - ensuring stable clamping performance across -55°C to +150°C junction temperature range under repetitive surge conditions with ≤0.05% duty factor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains aircraft-grade lightning surges without failure |
| Reverse Standoff Voltage (VWM) | 16 V - maximum continuous operating voltage before clamping initiates |
| Breakdown Voltage (V(BR)) | 17.8–19.7 V @ 5 mA - precise threshold for symmetrical bidirectional conduction |
| Clamping Voltage (VC) | ≤27.2 V @ IPP = 1324 A - limits downstream circuit voltage during worst-case surge |
| Peak Impulse Current (IPP) | 1324 A @ 10/1000 μs - quantifies maximum transient energy absorption capability |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables efficient heat transfer to heatsink or copper pour for repeated surge handling |
| Operating Temperature Range | -55°C to +150°C - qualified for extended mission-critical environments including engine bays and flight control units |
Pinout & Package
Package: PLAD (Plastic Leaded Anode/Cathode) - surface-mount, low-profile thermoset epoxy case with metal baseplate acting as cathode terminal. Dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), weight ~1.7–2.0 g. RoHS-compliant matte-tin plating, UL94V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top side marking) | Transient current entry point for negative surges | Enables bidirectional clamping: conducts when voltage falls below -V(BR) |
| Cathode (metal baseplate) | Transient current return path / thermal interface | Directly bonded to PCB copper pour or heatsink for minimal RθJC and mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Eliminates polarity dependency in AC-coupled or floating power rails - no orientation error during assembly |
| RTCA DO-160F Waveform 4 & 5A compliance | Validated for Level 4 (6.4/69 μs) and Level 5 (40/120 μs) pin injection - essential for avionics signal/power line hardening |
| AEC-Q101 qualified | Qualified for automotive underhood applications including load dump and alternator ripple suppression |
| MIL-PRF-19500 upscreening option | Available with M/MA/MXL reliability screening levels - traceable wafer lots and 3σ ID screening for mission-critical programs |
| IEC 61000-4-5 Class 5 compatibility (42 Ω) | Supports long-distance secondary lightning protection up to 260 V standoff - extends design margin for 24/28 V DC distribution networks |
Applications
| Avionics Power Input Protection | Automotive Engine Control Unit (ECU) |
|---|---|
|
Use Scenario: 28 V DC primary power input to flight management computer exposed to DO-160 Section 22 lightning-induced transients. IC Role / Device Role / Timing Role: Primary clamping TVS placed upstream of DC-DC converter input filter. Use Value: Limits transient voltage to ≤27.2 V during 36 kW surges, preventing latch-up or damage to downstream regulators and FPGAs. |
Use Scenario: 12 V battery-fed ECU subjected to ISO 7637-2 load dump pulses and alternator switching noise. IC Role / Device Role / Timing Role: Secondary surge protector after main fuse and upstream of LDOs and microcontroller power pins. Use Value: Absorbs >1300 A peak current while maintaining clamping below 28 V - preserves ASIL-B functional safety integrity. |
| Industrial Motor Drive DC Bus | Railway Signaling Interface |
|
Use Scenario: 48 V DC bus in variable-frequency drive exposed to IGBT commutation spikes and regenerative energy surges. IC Role / Device Role / Timing Role: Bidirectional TVS mounted directly across bus terminals near power stage. Use Value: Clamps both positive and negative transients within 100 ps response time - prevents gate driver misfiring and MOSFET avalanche failure. |
Use Scenario: 72 V signaling line in train control system requiring IEC 61000-4-5 Class 4 immunity with 2 Ω source impedance. IC Role / Device Role / Timing Role: Secondary protection element on isolated RS-485 or CAN FD physical layer interface. Use Value: Withstands 1324 A surges at 16 V standoff - ensures communication continuity during track-side lightning coupling events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA | Lower PPP rating (600 W), smaller SMB package, higher RθJA (≈50 °C/W) | Suitable only for board-level ESD/EFT; not rated for DO-160 lightning or IEC 61000-4-5 Class 4/5 | Select when cost-sensitive consumer-grade protection suffices and surge energy is <1 J |
| SMCJ16CA | Same 16 V VWM, but 1500 W PPP, SMC package, RθJC ≈ 2.5 °C/W | Lacks RTCA DO-160 qualification and MIL-PRF-19500 upscreening options | Choose for industrial automation where AEC-Q101 or aerospace compliance is not required |
Compared with SMBJ16CA and SMCJ16CA, the MPLAD36KP16CA provides 24× and 24× higher peak pulse power respectively, validated clamping performance under multi-stroke lightning, and full traceability for defense/aerospace BOMs - making it irreplaceable for certified high-energy transient environments.
Availability
MPLAD36KP16CA is available at Aetrix Electronics and suitable for avionics power conditioning, automotive ECU protection, and industrial motor drive DC bus stabilization requiring stable component supply, long-term lifecycle support, and full lot traceability.
Supply support for MPLAD36KP16CA 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) designs high-reliability analog, mixed-signal, and power semiconductors for aerospace, defense, and industrial markets - with emphasis on radiation-hardened, high-voltage, and surge-immune components.
The MPLAD36KP16CA belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for certified lightning and load-dump protection in safety-critical platforms where failure is not an option.
FAQ
What is the clamping voltage of MPLAD36KP16CA at its rated peak pulse current?
The MPLAD36KP16CA has a maximum clamping voltage (VC) of 27.2 V when subjected to its peak impulse current of 1324 A under 10/1000 μs waveform conditions. This value is measured at the device terminals with proper PCB layout and thermal management, and ensures downstream circuitry remains within safe operating voltage limits during high-energy transients.
Is MPLAD36KP16CA qualified for automotive applications?
Yes, MPLAD36KP16CA is AEC-Q101 qualified and explicitly rated for automotive load dump and switching transient protection. Its 16 V standoff voltage matches standard 12 V system architectures, and its 36 kW surge capability exceeds ISO 7637-2 Pulse 5a requirements - making it suitable for engine control units, ADAS domain controllers, and body electronics modules.
Does MPLAD36KP16CA meet RTCA DO-160 Section 22 lightning standards?
Yes, MPLAD36KP16CA is designed and tested to meet RTCA DO-160 Section 22 multi-stroke lightning requirements. Its 36 kW peak pulse power rating, low clamping voltage, and bidirectional symmetry enable compliance with Waveform 4 (6.4/69 μs) Level 4 and Level 5, and Waveform 5A (40/120 μs) Level 4 - verified per MicroNote 132 derating guidelines.
What is the thermal resistance and recommended mounting method for MPLAD36KP16CA?
The MPLAD36KP16CA has a junction-to-case thermal resistance (RθJC) of 1.0 °C/W. To achieve this, the metal baseplate (cathode) must be soldered directly to a large copper pour or heatsink using the recommended pad layout (0.470″ × 0.230″). Avoid thermal vias under the baseplate unless filled and capped - uncontrolled thermal paths degrade surge repetition capability.
How does the CA suffix affect the electrical behavior of MPLAD36KP16CA?
The "CA" suffix in MPLAD36KP16CA denotes bidirectional construction, meaning the device clamps symmetrically for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., MPLAD36KP16A), it has no polarity marking requirement and functions identically regardless of voltage polarity - ideal for AC-coupled lines, floating grounds, or differential interfaces where transient direction is unpredictable.
MPLAD36KP16CA 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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 27.2V
- Current - Peak Pulse (10/1000µs):
- 1324A (1.324kA)
- 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
MPLAD36KP16CA FAQ
1.How can I place an order for MPLAD36KP16CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP16CA 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 MPLAD36KP16CA reliable?
The price and inventory of MPLAD36KP16CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP16CA is usually 5 days.
3.What payment methods are accepted for MPLAD36KP16CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP16CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP16CA?
MPLAD36KP16CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP16CA 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 MPLAD36KP16CA?
For technical support, including MPLAD36KP16CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP16CA requirements.
6.How does Aetrix verify that MPLAD36KP16CA is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP16CA 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 MPLAD36KP16CA meets industry standards.
7.What is the process for return or replacement of MPLAD36KP16CA?
All MPLAD36KP16CA units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP16CA, 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 MPLAD36KP16CA part is unused and in its original packaging.
Return procedure for MPLAD36KP16CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP16CA Tags
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