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Microchip Technology MPLAD36KP150CA
- Part No.:
- MPLAD36KP150CA
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP150CA.pdf
- Description:
- TVS DIODE 150VWM 243VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:9,663
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Product details
Overview
MPLAD36KP150CA 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 150 V reverse standoff voltage (VWM), clamps to ≤243 V at 149 A peak pulse current (IPP), and meets RTCA DO-160 Section 22 multi-stroke lightning requirements.
For engineers reviewing the MPLAD36KP150CA datasheet, MPLAD36KP150CA pinout, MPLAD36KP150CA application, or MPLAD36KP150CA 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, DC bus protection, and high-reliability vehicle ECUs.
Technical Context
The MPLAD36KP150CA operates as a bidirectional avalanche diode-based TVS, leveraging silicon junction breakdown to clamp transients without triggering latch-up. Its thermal resistance is optimized at RθJC = 1.0 °C/W to sustain repeated 36 kW surges under low-duty-cycle conditions (≤0.05%).
It supports dual-standard compliance: IEC 61000-4-5 Class 1–5 (42 Ω, 12 Ω, 2 Ω) and RTCA/DO-160F Level 4/5 pin injection (Waveform 4: 6.4/69 μs; Waveform 5A: 40/120 μs), with temperature derating guidance provided in MicroNote 132 and 134.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - enables single-device protection against severe lightning-induced surges in aircraft and heavy-vehicle power rails. |
| Reverse Standoff Voltage (VWM) | 150 V - sets maximum continuous operating voltage; must exceed system's peak DC bus or supply voltage to prevent leakage conduction. |
| Clamping Voltage (VC) | 243 V @ IPP = 149 A - defines worst-case voltage seen by downstream circuitry during full-rated surge event. |
| Breakdown Voltage (VBR) | 167–185 V @ IBR = 5 mA - ensures reliable turn-on margin above VWM, minimizing false triggering. |
| Thermal Resistance (RθJC) | 1.0 °C/W - allows efficient heat transfer to heatsink or PCB copper, supporting repetitive surge operation with minimal junction temperature rise. |
| Standby Current (ID) | 10 μA @ VWM - guarantees negligible quiescent power loss and no measurable loading on protected 150 V nominal systems. |
Pinout & Package
Package: PLAD (Plastic Low-profile Anode-down) - void-free UL94V-0 epoxy body, metal base cathode termination, RoHS-compliant matte-tin plating. Dimensions: 12.32 × 10.54 × 5.08 mm (L × W × H), weight ≈1.8 g. Mounting requires recommended pad layout (Ref. A=11.94 mm, B=5.85 mm) for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Top Surface) | Positive terminal for unidirectional mode; symmetric terminal for bidirectional operation | Connected to line/pin being protected; polarity-insensitive in bidirectional MPLAD36KP150CA configuration. |
| Cathode (Metal Base) | Common reference / heat sink interface | Electrically and thermally connected to PCB ground plane or heatsink; serves as primary thermal path (RθJC = 1.0 °C/W). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional construction (CA suffix) | Enables symmetrical clamping for AC-coupled or floating DC lines without polarity constraints - essential for avionics data buses and dual-rail sensors. |
| RTCA DO-160 Section 22 compliance | Validated for multi-stroke lightning testing up to 36 kW, satisfying aircraft-level surge immunity requirements without external series impedance. |
| MIL-PRF-19500 upscreening option | Supports high-reliability screening (M, MA, MX, MXL levels) for mission-critical aerospace deployments requiring lot traceability and 3σ ID screening. |
| IEC 61000-4-5 Class 5 support (42 Ω, short distance) | Meets highest industrial surge immunity level for 150 V systems, enabling use in wind turbine converters and rail traction inverters. |
Applications
| Aircraft Power Input Protection | Automotive Load Dump Suppression |
|---|---|
Use Scenario: Protecting 28 V DC aircraft avionics power entry against lightning-induced surges per RTCA DO-160F Section 22. IC Role / Device Role / Timing Role: Bidirectional TVS clamping transient energy before it reaches upstream DC-DC converters and flight control modules. Use Value: Eliminates need for external series impedance or cascaded protection stages while sustaining ≥100 multi-stroke events at 36 kW. | Use Scenario: Safeguarding engine control units (ECUs) and ADAS domain controllers during 12 V/24 V load dump events per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Fast-response voltage clamp limiting bus voltage to ≤243 V during 100 ms, 120 V transients. Use Value: Prevents MOSFET gate oxide rupture and microcontroller brownout without derating for ambient temperature extremes (−55°C to +150°C). |
| Industrial DC Bus Protection | Railway Traction Converter Interface |
Use Scenario: Shielding 150 V intermediate DC links in solar inverters and UPS systems from grid-switching transients and EFT noise. IC Role / Device Role / Timing Role: Primary surge suppression element placed directly across DC+ and DC− terminals. Use Value: Withstands 149 A peak pulses at 10/1000 μs waveform while maintaining <10 μA leakage at full rated voltage - no standby power penalty. | Use Scenario: Securing auxiliary power supply interfaces in locomotive traction converters exposed to IEC 61000-4-5 Class 4 surges (2 Ω source). IC Role / Device Role / Timing Role: Secondary lightning protector mounted at cabinet entry point, downstream of primary MOV-based front-end. Use Value: Clamps to 243 V within <5 ns, meeting strict voltage overshoot limits for 150 V-rated IGBT gate drivers and isolation amplifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | 600 W PPP rating, SMC package, 230 V VC @ 22.5 A - 60× lower peak power handling than MPLAD36KP150CA. | Restricted to low-energy ESD/EFT; unsuitable for lightning or load dump where >1 kW surges occur. | Select only for cost-sensitive consumer electronics with sub-1 kA surge exposure. |
| SMCJ150CA | 1500 W PPP rating, SMC package, 243 V VC @ 54.3 A - 24× lower peak power than MPLAD36KP150CA. | Limited to IEC 61000-4-5 Class 3; cannot meet DO-160F Section 22 or Class 5 requirements. | Acceptable for industrial PLC I/O protection but not for aerospace or high-power automotive systems. |
Compared with SMBJ150CA and SMCJ150CA, the MPLAD36KP150CA delivers 36 kW clamping capability - enabling single-device compliance with RTCA DO-160F lightning standards and IEC 61000-4-5 Class 5 - while its PLAD package provides 1.0 °C/W thermal resistance for sustained surge duty cycles impossible for SMC/SMB packages.
Availability
MPLAD36KP150CA is available at Aetrix Electronics and suitable for aircraft power input protection, automotive load dump suppression, and industrial DC bus protection requiring stable component supply across extended production lifecycles.
Supply support for MPLAD36KP150CA 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.
The MPLAD36KP150CA belongs to Microsemi's PLAD-series high-power TVS family, engineered specifically for multi-stroke lightning protection and high-energy transient suppression in safety-critical platforms where failure is not an option.
FAQ
What is the clamping voltage of the MPLAD36KP150CA at its rated peak pulse current?
The MPLAD36KP150CA has a maximum clamping voltage (VC) of 243 V when subjected to its rated peak pulse current of 149 A under the standard 10/1000 μs waveform. This value is measured per Figure 3 in the RF01216 datasheet and defines the upper voltage limit imposed on protected circuitry during full-rated surge events.
Does the MPLAD36KP150CA meet RTCA DO-160F Section 22 lightning requirements?
Yes, the MPLAD36KP150CA is explicitly validated for RTCA DO-160F Section 22 multi-stroke lightning testing. Its 36 kW peak pulse power rating, fast response (<5 ns), and bidirectional CA construction enable compliance without external components - a key requirement for certified avionics power entry designs.
What is the thermal resistance junction-to-case (RθJC) for the MPLAD36KP150CA?
The MPLAD36KP150CA has a thermal resistance junction-to-case (RθJC) of 1.0 °C/W, as specified in the "MAXIMUM RATINGS" table of the RF01216 datasheet. This low value is achieved via direct metal-base cathode contact and enables effective heat transfer to PCB copper or external heatsinks during repetitive surge events.
Can the MPLAD36KP150CA be used in both unidirectional and bidirectional configurations?
No - the "CA" suffix in MPLAD36KP150CA denotes a fixed bidirectional construction. Unidirectional variants use the "A" suffix (e.g., MPLAD36KP150A). The CA version provides symmetrical clamping for AC signals or floating DC busses, while the A version offers higher forward surge current (1500 A) for DC-only applications with defined polarity.
Is the MPLAD36KP150CA RoHS compliant?
Yes, the MPLAD36KP150CA is RoHS compliant, indicated by the "e3" designation in its nomenclature. It uses annealed matte-tin plating per MIL-STD-750 Method 2026 and meets IPC/JEDEC J-STD-020B moisture sensitivity Level 1 - eliminating dry pack requirements for standard SMT assembly.
MPLAD36KP150CA 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):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 149A
- 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
MPLAD36KP150CA FAQ
1.How can I place an order for MPLAD36KP150CA through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP150CA 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 MPLAD36KP150CA reliable?
The price and inventory of MPLAD36KP150CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP150CA is usually 5 days.
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4.How is shipping managed for MPLAD36KP150CA?
MPLAD36KP150CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP150CA 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 MPLAD36KP150CA?
For technical support, including MPLAD36KP150CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP150CA requirements.
6.How does Aetrix verify that MPLAD36KP150CA is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP150CA 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 MPLAD36KP150CA meets industry standards.
7.What is the process for return or replacement of MPLAD36KP150CA?
All MPLAD36KP150CA units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP150CA, 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 MPLAD36KP150CA part is unused and in its original packaging.
Return procedure for MPLAD36KP150CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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