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Microchip Technology MPLAD36KP54CAE3
- Part No.:
- MPLAD36KP54CAE3
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- Nonstandard SMD
- Datasheet:
-
MPLAD36KP54CAE3.pdf
- Description:
- TVS DIODE 54VWM 87.1VC PLAD
- Quantity:
- Payment:
- Shipping:
Inventory:5,666
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Product details
Overview
MPLAD36KP54CAE3 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 ≤87.1 V at 414 A, and features a 54 V reverse standoff voltage (VWM), 60–66.3 V breakdown voltage (V(BR)), and 1.0 °C/W junction-to-case thermal resistance - enabling robust secondary lightning protection per IEC 61000-4-5 and RTCA DO-160F Waveform 4 Level 4.
For engineers reviewing the MPLAD36KP54CAE3 datasheet, MPLAD36KP54CAE3 pinout, MPLAD36KP54CAE3 application, or MPLAD36KP54CAE3 equivalent, this device is selected for high-reliability DC bus and signal line protection where multi-stroke surge endurance, low-profile SMT mounting, and RoHS-compliant e3 plating are required - especially in avionics power distribution units, vehicle ECU inputs, and industrial PLC I/O modules.
Technical Context
This TVS operates as a voltage-clamped crowbar device, triggered when transient voltage exceeds its specified V(BR) range of 60.0–66.3 V at 5 mA. Its bidirectional construction enables symmetrical clamping on both polarities without external polarity management.
Thermal design relies on direct metal-base heat transfer: the cathode is the metal base under the body, and RθJC = 1.0 °C/W allows efficient conduction to PCB copper or heatsink. It meets AEC-Q101 stress testing and supports MIL-PRF-19500 upscreening options for high-reliability programs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPP) | 36,000 W @ 10/1000 μs - sustains single-stroke lightning surges up to Class 5 IEC 61000-4-5 with 42 Ω source impedance. |
| Reverse Standoff Voltage (VWM) | 54 V - maximum continuous DC or peak AC voltage the device blocks without clamping; sets minimum system operating voltage margin. |
| Breakdown Voltage (V(BR)) | 60.0–66.3 V @ 5 mA - precise threshold triggering point; ensures reliable turn-on before downstream circuit damage. |
| Max Clamping Voltage (VC) | 87.1 V @ 414 A - limits voltage seen by protected ICs during worst-case surge; enables 15 V–24 V rail compatibility with safety margin. |
| Junction-to-Case Thermal Resistance | 1.0 °C/W - enables high-power dissipation via direct metal-base mounting; requires ≥11.94 mm × 5.85 mm copper pad per datasheet layout. |
| Moisture Sensitivity Level | Level 1 (IPC/JEDEC J-STD-020B) - no dry pack or bake-out required prior to reflow; simplifies SMT assembly logistics. |
| RoHS Compliance | e3 suffix - matte-tin plating compliant with EU RoHS Directive 2011/65/EU; eliminates lead and six hazardous substances. |
Pinout & Package
Package: PLAD (Plastic Leaded Anode/Cathode) - void-free UL94V-0 thermosetting epoxy body with metal base cathode; dimensions 12.32 × 10.54 × 5.08 mm (L × W × H); weight ≈1.85 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (top surface pad) | Transient current entry (bidirectional) | Primary surge current path during positive or negative transients; soldered to protected line. |
| Cathode (metal base) | Transient current return / heat sink interface | Electrically connected to PCB ground plane or heatsink; serves dual role as electrical terminal and thermal conduction path. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Eliminates need for polarity-aware placement; protects AC-coupled or floating lines without external diodes. |
| 3σ lot norm screening on standby current (ID) | Ensures consistent leakage performance (<10 μA @ 54 V) across production lots for long-term reliability in high-impedance circuits. |
| RTCA DO-160F Waveform 4 Level 4 compliance | Validated for 6.4/69 μs pin-injection transients at 54 V rating - critical for avionics data bus and sensor interface protection. |
| AEC-Q101 qualified | Meets automotive-grade stress testing (HTOL, TCT, ESD, etc.), supporting under-hood and battery-line applications. |
| Low-profile SMT package with metal base | Enables automated assembly while delivering thermal performance comparable to through-hole TVS devices. |
Applications
| Aerospace Power Distribution | Automotive Battery Management |
|---|---|
Use Scenario: Protection of 28 V DC bus in aircraft flight control computers against induced lightning transients per DO-160 Section 22. IC Role / Device Role / Timing Role: Primary secondary surge clamp on main power input, placed upstream of DC-DC converters and microcontrollers. Use Value: Withstands multi-stroke events up to 36 kW, maintaining <87.1 V clamping to prevent latch-up or burnout in downstream ASICs. |
Use Scenario: Input protection for BMS cell monitor ICs exposed to load dump pulses (ISO 7637-2 Pulse 5a) in 12 V/24 V hybrid vehicles. IC Role / Device Role / Timing Role: Fast-response crowbar element on analog front-end supply rails, absorbing >400 A surge peaks within nanoseconds. Use Value: 1.0 °C/W thermal resistance enables stable operation without derating at 100°C ambient, ensuring longevity in engine bay environments. |
| Industrial PLC Digital I/O | Railway Signaling Interface |
Use Scenario: Surge suppression on 24 V digital input channels of programmable logic controllers subjected to IEC 61000-4-5 Class 4 surges (4 kV, 2 Ω source). IC Role / Device Role / Timing Role: First-line transient absorber between field wiring and optocoupler input stage. Use Value: Bidirectional symmetry prevents polarity reversal damage during maintenance or miswiring; clamps to <87.1 V within <5 ns. |
Use Scenario: Protection of 110 V signaling lines in European railway interlocking systems meeting EN 50121-4 immunity requirements. IC Role / Device Role / Timing Role: Secondary protector on track-side communication interfaces, coordinated with upstream gas discharge tubes. Use Value: 54 V VWM aligns with 110 V nominal rail derated for temperature; RoHS e3 plating ensures compliance with strict rolling stock material directives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ54CA | Lower PPP (600 W), smaller SMB package, higher RθJA (40 °C/W), same VWM/V(BR) range. | Suitable for lower-energy surges (IEC 61000-4-2/4-4), not validated for DO-160F or multi-stroke lightning. | Select when cost, board space, or single-event ESD/EFT dominate over high-energy surge capability. |
| SMCJ54CA | Higher PPP (1500 W), larger SMC package, RθJA ≈ 15 °C/W, same VWM/V(BR), no AEC-Q101 or DO-160 qualification. | Used in industrial power supplies and telecom equipment; lacks aerospace/automotive traceability and screening options. | Select when moderate surge energy suffices and MIL-PRF-19500 upscreening is unnecessary. |
Compared with SMBJ54CA and SMCJ54CA, the MPLAD36KP54CAE3 provides 24× and 24× higher peak pulse power respectively, integrated metal-base thermal management, and certified qualification for mission-critical aerospace and automotive surge standards - making it irreplaceable where multi-stroke lightning endurance and lot-traceable reliability are mandatory.
Availability
MPLAD36KP54CAE3 is available at Aetrix Electronics and suitable for aerospace power distribution, automotive battery management, and industrial PLC digital I/O requiring stable component supply across extended product lifecycles.
Supply support for MPLAD36KP54CAE3 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 semiconductor solutions for aerospace, defense, and industrial markets, with expertise in radiation-hardened ICs, timing devices, and power protection components.
The MPLAD36KP54CAE3 belongs to Microsemi's high-power PLAD TVS family, engineered specifically for secondary lightning protection in safety-critical platforms where multi-stroke endurance, thermal robustness, and qualification traceability are non-negotiable.
FAQ
What is the clamping voltage of MPLAD36KP54CAE3 at its rated peak pulse current?
The MPLAD36KP54CAE3 has a maximum clamping voltage (VC) of 87.1 V at 414 A peak pulse current (IPP) under 10/1000 μs waveform conditions. This value is guaranteed per datasheet Figure 3 and defines the upper voltage limit imposed on protected circuitry during worst-case surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is MPLAD36KP54CAE3 qualified for automotive applications?
Yes, MPLAD36KP54CAE3 is AEC-Q101 qualified, having passed stress tests including high-temperature operating life, temperature cycling, and ESD. Its bidirectional construction, 54 V VWM, and 87.1 V clamping make it suitable for protecting battery-line sensors, BMS monitors, and powertrain ECUs against ISO 7637-2 load dump and ISO 16750-2 jump-start transients.
How does the metal base cathode of MPLAD36KP54CAE3 affect PCB layout?
The metal base of MPLAD36KP54CAE3 serves as the cathode terminal and primary thermal path. Per datasheet pad layout, it requires a minimum 11.94 mm × 5.85 mm copper area connected to ground or heatsink. This design reduces RθJC to 1.0 °C/W but mandates full-surface soldering - no thermal relief spokes - to maintain surge-handling integrity and avoid delamination under repeated 36 kW pulses.
Does MPLAD36KP54CAE3 meet RTCA DO-160F lightning protection requirements?
Yes, MPLAD36KP54CAE3 is explicitly validated for RTCA DO-160F Section 22 Waveform 4 (6.4/69 μs) Level 4 protection at its 54 V rating. It also supports Waveform 5A Level 4 up to 78 V, enabling use in avionics data buses, flight control sensors, and power distribution units where multi-stroke lightning resilience is mandated.
What does the "e3" suffix indicate in MPLAD36KP54CAE3?
"e3" denotes RoHS-compliant matte-tin plating per JEDEC J-STD-020B, confirming absence of lead, cadmium, mercury, hexavalent chromium, PBB, and PBDE. This plating ensures solderability per MIL-STD-750 Method 2026 and qualifies MPLAD36KP54CAE3 for environmentally regulated markets including EU, Japan, and China without requiring exemption documentation.
MPLAD36KP54CAE3 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):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 414A
- 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
MPLAD36KP54CAE3 FAQ
1.How can I place an order for MPLAD36KP54CAE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for MPLAD36KP54CAE3 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 MPLAD36KP54CAE3 reliable?
The price and inventory of MPLAD36KP54CAE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPLAD36KP54CAE3 is usually 5 days.
3.What payment methods are accepted for MPLAD36KP54CAE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPLAD36KP54CAE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MPLAD36KP54CAE3?
MPLAD36KP54CAE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MPLAD36KP54CAE3 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 MPLAD36KP54CAE3?
For technical support, including MPLAD36KP54CAE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPLAD36KP54CAE3 requirements.
6.How does Aetrix verify that MPLAD36KP54CAE3 is sourced from the original manufacturer or authorized distributors?
All MPLAD36KP54CAE3 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 MPLAD36KP54CAE3 meets industry standards.
7.What is the process for return or replacement of MPLAD36KP54CAE3?
All MPLAD36KP54CAE3 units undergo pre-shipment inspection (PSI). If there is an issue with MPLAD36KP54CAE3, 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 MPLAD36KP54CAE3 part is unused and in its original packaging.
Return procedure for MPLAD36KP54CAE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MPLAD36KP54CAE3 Tags
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